+2007-12-14 Edgard Lima,,,, <edgard.lima@indt.org.br>
+
+ * ext/metadata/Makefile.am:
+ * ext/metadata/TODO:
+ * ext/metadata/gstmetadata.c:
+ * ext/metadata/gstmetadatacommon.c:
+ * ext/metadata/gstmetadatacommon.h:
+ * ext/metadata/gstmetadatademux.c:
+ * ext/metadata/gstmetadatademux.h:
+ * ext/metadata/gstmetadatamux.c:
+ * ext/metadata/gstmetadatamux.h:
+ * ext/metadata/gstmetadataparse.c:
+ * ext/metadata/gstmetadataparse.h:
+ * ext/metadata/metadataexif.c:
+ * ext/metadata/metadatatags.c:
+ * ext/metadata/test/metadata_editor.c:
+ Added new module for common functions. Using GST_TYPE_FRACTION for
+ Exif (S)Rational types.
+
2007-12-14 Zaheer Abbas Merali <zaheerabbas at merali dot org>
* gst/mpegtsparse/mpegtspacketizer.c:
plugin_LTLIBRARIES = libgstmetadata.la
libgstmetadata_la_SOURCES = gstmetadata.c \
- gstmetadataparse.c \
+ gstmetadatacommon.c \
+ gstmetadatademux.c \
metadata.c \
metadataparsejpeg.c \
metadatamuxjpeg.c \
gstmetadatamux.c \
metadatatags.c
+libgstmetadata_ladir = $(includedir)/gstreamer-@GST_MAJORMINOR@/metadata
+libgstmetadata_la_HEADERS = metadatatags.h
+
libgstmetadata_la_CFLAGS = $(METADATA_CFLAGS) $(GST_PLUGINS_BASE_CFLAGS) $(GST_BASE_CFLAGS)
libgstmetadata_la_LIBADD = $(METADATA_LIBS) -lgsttag-@GST_MAJORMINOR@ $(GST_PLUGINS_BASE_LIBS) $(GST_BASE_LIBS)
libgstmetadata_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
-noinst_HEADERS = gstmetadataparse.h \
+noinst_HEADERS = gstmetadatademux.h \
+ gstmetadatacommon.h \
metadata.h \
metadataparsejpeg.h \
metadatamuxjpeg.h \
TODO:
1- Add individual tags IPTC and XMP (and more for EXIF)
-2- Use GST_TYPE_FRACTION for Rational and SRational (metadataexif.c)
-3- Get properties like 'width' and 'height' from caps
-4- Review the code (in order to move to gst-plugins-good)
-5- Document how the plugin works (atchitecture and interaction beteween modules)
+2- Get properties like 'width' and 'height' from caps
+3- Review the code (in order to move to gst-plugins-good)
+4- Document how the plugin works (atchitecture and interaction beteween modules)
OPEN ISSUES:
2- How to change metadata when the orignal image was modified.
ex: file.jpeg has XMP, then we do filesrc ! metadataparse ! jpegdec ! pngenc ! metadatamux ! files
is the metadata still valid? which fields are no valid anymore?
+3- Add GST_TYPE_FRACTION support for GStreamer TAGS
+4- Have parse, demux and mux? (or just demux and must) see issue (5)
+5- After decided issue (4) put more things to gstmetadatacommon (or else create a Class)
#include "metadatatags.h"
-extern gboolean gst_metadata_parse_plugin_init (GstPlugin * plugin);
+extern gboolean gst_metadata_demux_plugin_init (GstPlugin * plugin);
extern gboolean gst_metadata_mux_plugin_init (GstPlugin * plugin);
GST_DEBUG_CATEGORY_EXTERN (gst_metadata_exif_debug);
metadata_tags_register ();
- ret = gst_metadata_parse_plugin_init (plugin);
+ ret = gst_metadata_demux_plugin_init (plugin);
ret = ret && gst_metadata_mux_plugin_init (plugin);
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"metadata",
- "Metadata (EXIF, IPTC and XMP) image (JPEG, TIFF) parser and muxer",
+ "Metadata (EXIF, IPTC and XMP) image (JPEG, TIFF) demuxer and muxer",
plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)
--- /dev/null
+/*
+ * GStreamer
+ * Copyright 2007 Edgard Lima <edgard.lima@indt.org.br>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Alternatively, the contents of this file may be used under the
+ * GNU Lesser General Public License Version 2.1 (the "LGPL"), in
+ * which case the following provisions apply instead of the ones
+ * mentioned above:
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+/**
+ * SECTION:metadatamux-metadata
+ *
+ * <refsect2>
+ * <title>Example launch line</title>
+ * <para>
+ * <programlisting>
+ * gst-launch -v -m filesrc location=./test.jpeg ! metadatamux ! fakesink silent=TRUE
+ * </programlisting>
+ * </para>
+ * </refsect2>
+ */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <string.h>
+
+/*
+ * static functions declaration
+ */
+
+#include "gstmetadatacommon.h"
+
+/*
+ * offset - offset of buffer in original stream
+ * size - size of buffer
+ * seg_offset - offset of segment in original stream
+ * seg_size - size of segment
+ * boffset - offset inside buffer where segment starts (-1 for no intersection)
+ * bsize - size of intersection
+ * seg_binter - if segment start inside buffer is zero. if segment start before
+ * buffer and intersect, it is the offset inside segment.
+ *
+ * ret:
+ * -1 - segment before buffer
+ * 0 - segment intersects
+ * 1 - segment after buffer
+ */
+
+static int
+gst_metadata_common_get_strip_seg (const gint64 offset, guint32 size,
+ const gint64 seg_offset, const guint32 seg_size,
+ gint64 * boffset, guint32 * bsize, guint32 * seg_binter)
+{
+ int ret = -1;
+
+ *boffset = -1;
+ *bsize = 0;
+ *seg_binter = -1;
+
+ /* all segment after buffer */
+ if (seg_offset >= offset + size) {
+ ret = 1;
+ goto done;
+ }
+
+ if (seg_offset < offset) {
+ /* segment start somewhere before buffer */
+
+ /* all segment before buffer */
+ if (seg_offset + seg_size <= offset) {
+ ret = -1;
+ goto done;
+ }
+
+ *seg_binter = offset - seg_offset;
+ *boffset = 0;
+
+ /* FIXME : optimize to >= size -> = size */
+ if (seg_offset + seg_size >= offset + size) {
+ /* segment cover all buffer */
+ *bsize = size;
+ } else {
+ /* segment goes from start of buffer to somewhere before end */
+ *bsize = seg_size - *seg_binter;
+ }
+
+ ret = 0;
+
+ } else {
+ /* segment start somewhere into buffer */
+
+ *boffset = seg_offset - offset;
+ *seg_binter = 0;
+
+ if (seg_offset + seg_size <= offset + size) {
+ /* all segment into buffer */
+ *bsize = seg_size;
+ } else {
+ *bsize = size - *boffset;
+ }
+
+ ret = 0;
+
+ }
+
+done:
+
+ return ret;
+
+}
+
+/*
+ * extern functions declaration
+ */
+
+void
+gst_metadata_common_init (GstMetadataCommon * common, gboolean parse,
+ guint8 options)
+{
+ metadata_init (&common->metadata, parse, options);
+}
+
+void
+gst_metadata_common_dispose (GstMetadataCommon * common)
+{
+ if (common->append_buffer) {
+ gst_buffer_unref (common->append_buffer);
+ common->append_buffer = NULL;
+ }
+ metadata_dispose (&common->metadata);
+}
+
+/*
+
+/*
+ * TRUE -> buffer striped or injeted
+ * FALSE -> buffer unmodified
+ */
+
+gboolean
+gst_metadata_common_strip_push_buffer (GstMetadataCommon * common,
+ gint64 offset_orig, GstBuffer ** prepend, GstBuffer ** buf)
+{
+ MetadataChunk *strip = common->metadata.strip_chunks.chunk;
+ MetadataChunk *inject = common->metadata.inject_chunks.chunk;
+ const gsize strip_len = common->metadata.strip_chunks.len;
+ const gsize inject_len = common->metadata.inject_chunks.len;
+
+ gboolean buffer_reallocated = FALSE;
+
+ guint32 size_buf_in = GST_BUFFER_SIZE (*buf);
+
+ gint64 *boffset_strip = NULL;
+ guint32 *bsize_strip = NULL;
+ guint32 *seg_binter_strip = NULL;
+
+ int i, j;
+ gboolean need_free_strip = FALSE;
+
+ guint32 striped_bytes = 0;
+ guint32 injected_bytes = 0;
+
+ guint32 prepend_size = prepend && *prepend ? GST_BUFFER_SIZE (*prepend) : 0;
+
+ if (inject_len) {
+
+ for (i = 0; i < inject_len; ++i) {
+ int res;
+
+ if (inject[i].offset_orig >= offset_orig) {
+ if (inject[i].offset_orig < offset_orig + size_buf_in) {
+ injected_bytes += inject[i].size;
+ } else {
+ /* segment is after size (segments are sorted) */
+ break;
+ }
+ }
+ }
+
+ }
+
+ /*
+ * strip segments
+ */
+
+ if (strip_len == 0)
+ goto inject;
+
+ if (G_UNLIKELY (strip_len > 16)) {
+ boffset_strip = g_new (gint64, strip_len);
+ bsize_strip = g_new (guint32, strip_len);
+ seg_binter_strip = g_new (guint32, strip_len);
+ need_free_strip = TRUE;
+ } else {
+ boffset_strip = g_alloca (sizeof (boffset_strip[0]) * strip_len);
+ bsize_strip = g_alloca (sizeof (bsize_strip[0]) * strip_len);
+ seg_binter_strip = g_alloca (sizeof (seg_binter_strip[0]) * strip_len);
+ }
+
+ memset (bsize_strip, 0x00, sizeof (bsize_strip[0]) * strip_len);
+
+ for (i = 0; i < strip_len; ++i) {
+ int res;
+
+ res = gst_metadata_common_get_strip_seg (offset_orig, size_buf_in,
+ strip[i].offset_orig, strip[i].size, &boffset_strip[i], &bsize_strip[i],
+ &seg_binter_strip[i]);
+
+ /* segment is after size (segments are sorted) */
+ striped_bytes += bsize_strip[i];
+ if (res > 0) {
+ break;
+ }
+
+ }
+
+ if (striped_bytes) {
+
+ guint8 *data;
+
+ if (!buffer_reallocated) {
+ buffer_reallocated = TRUE;
+ if (injected_bytes + prepend_size > striped_bytes) {
+ GstBuffer *new_buf =
+ gst_buffer_new_and_alloc (GST_BUFFER_SIZE (*buf) + injected_bytes +
+ prepend_size - striped_bytes);
+
+ memcpy (GST_BUFFER_DATA (new_buf), GST_BUFFER_DATA (*buf),
+ GST_BUFFER_SIZE (*buf));
+
+ gst_buffer_unref (*buf);
+ *buf = new_buf;
+
+ } else if (GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_FLAG_READONLY)) {
+ GstBuffer *new_buf = gst_buffer_copy (*buf);
+
+ gst_buffer_unref (*buf);
+ *buf = new_buf;
+ GST_BUFFER_FLAG_UNSET (*buf, GST_BUFFER_FLAG_READONLY);
+ GST_BUFFER_SIZE (*buf) += injected_bytes + prepend_size - striped_bytes;
+ }
+ }
+
+ data = GST_BUFFER_DATA (*buf);
+
+ striped_bytes = 0;
+ for (i = 0; i < strip_len; ++i) {
+ /* intersect */
+ if (bsize_strip[i]) {
+ memmove (data + boffset_strip[i] - striped_bytes,
+ data + boffset_strip[i] + bsize_strip[i] - striped_bytes,
+ size_buf_in - boffset_strip[i] - bsize_strip[i]);
+ striped_bytes += bsize_strip[i];
+ }
+ }
+ size_buf_in -= striped_bytes;
+
+ }
+
+inject:
+
+ /*
+ * inject segments
+ */
+
+ if (inject_len) {
+
+ guint8 *data;
+ guint32 striped_so_far;
+
+ if (!buffer_reallocated) {
+ buffer_reallocated = TRUE;
+ if (injected_bytes + prepend_size > striped_bytes) {
+ GstBuffer *new_buf =
+ gst_buffer_new_and_alloc (GST_BUFFER_SIZE (*buf) + injected_bytes +
+ prepend_size - striped_bytes);
+
+ memcpy (GST_BUFFER_DATA (new_buf), GST_BUFFER_DATA (*buf),
+ GST_BUFFER_SIZE (*buf));
+
+ gst_buffer_unref (*buf);
+ *buf = new_buf;
+
+ } else if (GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_FLAG_READONLY)) {
+ GstBuffer *new_buf = gst_buffer_copy (*buf);
+
+ gst_buffer_unref (*buf);
+ *buf = new_buf;
+ GST_BUFFER_FLAG_UNSET (*buf, GST_BUFFER_FLAG_READONLY);
+ GST_BUFFER_SIZE (*buf) += injected_bytes + prepend_size - striped_bytes;
+ }
+ }
+
+ data = GST_BUFFER_DATA (*buf);
+
+ injected_bytes = 0;
+ striped_so_far = 0;
+ j = 0;
+ for (i = 0; i < inject_len; ++i) {
+ int res;
+
+ while (j < strip_len) {
+ if (strip[j].offset_orig < inject[i].offset_orig)
+ striped_so_far += bsize_strip[j++];
+ else
+ break;
+ }
+
+ if (inject[i].offset_orig >= offset_orig) {
+ if (inject[i].offset_orig <
+ offset_orig + size_buf_in + striped_bytes - injected_bytes) {
+ /* insert */
+ guint32 buf_off =
+ inject[i].offset_orig - offset_orig - striped_so_far +
+ injected_bytes;
+ memmove (data + buf_off + inject[i].size, data + buf_off,
+ size_buf_in - buf_off);
+ memcpy (data + buf_off, inject[i].data, inject[i].size);
+ injected_bytes += inject[i].size;
+ size_buf_in += inject[i].size;
+ } else {
+ /* segment is after size (segments are sorted) */
+ break;
+ }
+ }
+ }
+
+ }
+
+
+done:
+
+ if (prepend_size) {
+ if (injected_bytes == 0 && striped_bytes == 0) {
+ GstBuffer *new_buf =
+ gst_buffer_new_and_alloc (size_buf_in + prepend_size);
+
+ memcpy (GST_BUFFER_DATA (new_buf) + prepend_size, GST_BUFFER_DATA (*buf),
+ size_buf_in);
+
+ gst_buffer_unref (*buf);
+ *buf = new_buf;
+ } else {
+ memmove (GST_BUFFER_DATA (*buf) + prepend_size, GST_BUFFER_DATA (*buf),
+ size_buf_in);
+ }
+ memcpy (GST_BUFFER_DATA (*buf), GST_BUFFER_DATA (*prepend), prepend_size);
+ gst_buffer_unref (*prepend);
+ *prepend = NULL;
+ }
+
+ GST_BUFFER_SIZE (*buf) = size_buf_in + prepend_size;
+
+ if (need_free_strip) {
+ g_free (boffset_strip);
+ g_free (bsize_strip);
+ g_free (seg_binter_strip);
+ }
+
+ return injected_bytes || striped_bytes;
+
+}
+
+/*
+ * pos - position in stream striped
+ * orig_pos - position in original stream
+ * return TRUE - position in original buffer
+ * FALSE - position in inserted chunk
+ */
+gboolean
+gst_metadata_common_translate_pos_to_orig (GstMetadataCommon * common,
+ gint64 pos, gint64 * orig_pos, GstBuffer ** buf)
+{
+ MetadataChunk *strip = common->metadata.strip_chunks.chunk;
+ MetadataChunk *inject = common->metadata.inject_chunks.chunk;
+ const gsize strip_len = common->metadata.strip_chunks.len;
+ const gsize inject_len = common->metadata.inject_chunks.len;
+ const gint64 duration_orig = common->duration_orig;
+ const gint64 duration = common->duration;
+
+ int i;
+ gboolean ret = TRUE;
+ guint64 new_buf_size = 0;
+ guint64 injected_before = 0;
+
+ if (G_UNLIKELY (pos == -1)) {
+ *orig_pos = -1;
+ return TRUE;
+ } else if (G_UNLIKELY (pos >= duration)) {
+ /* this should never happen */
+ *orig_pos = duration_orig;
+ return TRUE;
+ }
+
+ /* calculate for injected */
+
+ /* just calculate size */
+ *orig_pos = pos; /* save pos */
+ for (i = 0; i < inject_len; ++i) {
+ /* check if pos in inside chunk */
+ if (inject[i].offset <= pos) {
+ if (pos < inject[i].offset + inject[i].size) {
+ /* orig pos points after insert chunk */
+ new_buf_size += inject[i].size;
+ /* put pos after current chunk */
+ pos = inject[i].offset + inject[i].size;
+ ret = FALSE;
+ } else {
+ /* in case pos is not inside a injected chunk */
+ injected_before += inject[i].size;
+ }
+ } else {
+ break;
+ }
+ }
+
+ /* alloc buffer and calcute original pos */
+ if (buf && ret == FALSE) {
+ guint8 *data;
+
+ if (*buf)
+ gst_buffer_unref (*buf);
+ *buf = gst_buffer_new_and_alloc (new_buf_size);
+ data = GST_BUFFER_DATA (*buf);
+ pos = *orig_pos; /* recover saved pos */
+ for (i = 0; i < inject_len; ++i) {
+ if (inject[i].offset > pos) {
+ break;
+ }
+ if (inject[i].offset <= pos && pos < inject[i].offset + inject[i].size) {
+ memcpy (data, inject[i].data, inject[i].size);
+ data += inject[i].size;
+ pos = inject[i].offset + inject[i].size;
+ /* out position after insert chunk orig */
+ *orig_pos = inject[i].offset_orig + inject[i].size;
+ }
+ }
+ }
+
+ if (ret == FALSE) {
+ /* if it inside a injected is already done */
+ goto done;
+ }
+
+ /* calculate for striped */
+
+ *orig_pos = pos - injected_before;
+ for (i = 0; i < strip_len; ++i) {
+ if (strip[i].offset_orig > pos) {
+ break;
+ }
+ *orig_pos += strip[i].size;
+ }
+
+done:
+
+ if (G_UNLIKELY (*orig_pos >= duration_orig)) {
+ *orig_pos = duration_orig - 1;
+ }
+
+ return ret;
+
+}
+
+/*
+ * return:
+ * -1 -> error
+ * 0 -> succeded
+ * 1 -> need more data
+ */
+
+gboolean
+gst_metadata_common_calculate_offsets (GstMetadataCommon * common)
+{
+ int i, j;
+ guint32 append_size;
+ guint32 bytes_striped, bytes_inject;
+ MetadataChunk *strip = common->metadata.strip_chunks.chunk;
+ MetadataChunk *inject = common->metadata.inject_chunks.chunk;
+ gsize strip_len;
+ gsize inject_len;
+
+ if (common->state != MT_STATE_PARSED)
+ return FALSE;
+
+ metadata_lazy_update (&common->metadata);
+
+ strip_len = common->metadata.strip_chunks.len;
+ inject_len = common->metadata.inject_chunks.len;
+
+ bytes_striped = 0;
+ bytes_inject = 0;
+
+ /* calculate the new position off injected chunks */
+ j = 0;
+ for (i = 0; i < inject_len; ++i) {
+ for (; j < strip_len; ++j) {
+ if (strip[j].offset_orig >= inject[i].offset_orig) {
+ break;
+ }
+ bytes_striped += strip[j].size;
+ }
+ inject[i].offset = inject[i].offset_orig - bytes_striped + bytes_inject;
+ bytes_inject += inject[i].size;
+ }
+
+ /* calculate append (doesnt make much sense, but, anyway..) */
+ append_size = 0;
+ for (i = inject_len - 1; i >= 0; --i) {
+ if (inject[i].offset_orig == common->duration_orig)
+ append_size += inject[i].size;
+ else
+ break;
+ }
+ if (append_size) {
+ guint8 *data;
+
+ common->append_buffer = gst_buffer_new_and_alloc (append_size);
+ GST_BUFFER_FLAG_SET (common->append_buffer, GST_BUFFER_FLAG_READONLY);
+ data = GST_BUFFER_DATA (common->append_buffer);
+ for (i = inject_len - 1; i >= 0; --i) {
+ if (inject[i].offset_orig == common->duration_orig) {
+ memcpy (data, inject[i].data, inject[i].size);
+ data += inject[i].size;
+ } else {
+ break;
+ }
+ }
+ }
+
+ if (common->duration_orig) {
+ common->duration = common->duration_orig;
+ for (i = 0; i < inject_len; ++i) {
+ common->duration += inject[i].size;
+ }
+ for (i = 0; i < strip_len; ++i) {
+ common->duration -= strip[i].size;
+ }
+ }
+
+ return TRUE;
+
+}
+
+void
+gst_metadata_common_update_segment_with_new_buffer (GstMetadataCommon * common,
+ guint8 ** buf, guint32 * size, MetadataChunkType type)
+{
+ int i;
+ MetadataChunk *inject = common->metadata.inject_chunks.chunk;
+ const gsize inject_len = common->metadata.inject_chunks.len;
+
+ if (!(buf && size))
+ goto done;
+ if (*buf == 0)
+ goto done;
+ if (*size == 0)
+ goto done;
+
+ for (i = 0; i < inject_len; ++i) {
+ if (inject[i].type == type) {
+ inject[i].size = *size;
+ if (inject[i].data)
+ g_free (inject[i].data);
+ inject[i].data = *buf;
+ *size = 0;
+ *buf = 0;
+ break;
+ }
+ }
+
+done:
+
+ return;
+
+}
+
+const gchar *
+gst_metadata_common_get_type_name (int img_type)
+{
+ gchar *type_name = NULL;
+
+ switch (img_type) {
+ case IMG_JPEG:
+ type_name = "jpeg";
+ break;
+ case IMG_PNG:
+ type_name = "png";
+ break;
+ default:
+ type_name = "invalid type";
+ break;
+ }
+ return type_name;
+}
--- /dev/null
+/*
+ * GStreamer
+ * Copyright 2007 Edgard Lima <edgard.lima@indt.org.br>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Alternatively, the contents of this file may be used under the
+ * GNU Lesser General Public License Version 2.1 (the "LGPL"), in
+ * which case the following provisions apply instead of the ones
+ * mentioned above:
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+
+#ifndef __GST_METADATA_COMMON_H__
+#define __GST_METADATA_COMMON_H__
+
+#include "metadata.h"
+
+G_BEGIN_DECLS
+
+typedef struct _GstMetadataCommon GstMetadataCommon;
+
+typedef enum _tag_MetadataState
+{
+ MT_STATE_NULL, /* still need to check media type */
+ MT_STATE_PARSED
+} MetadataState;
+
+struct _GstMetadataCommon {
+
+ MetaData metadata;
+ gint64 duration_orig; /* durarion of stream */
+ gint64 duration; /* durarion of modified stream */
+
+ GstBuffer * append_buffer;
+ MetadataState state;
+
+};
+
+extern void
+gst_metadata_common_init(GstMetadataCommon *common, gboolean parse, guint8 options);
+
+extern void
+gst_metadata_common_dispose(GstMetadataCommon *common);
+
+extern gboolean
+gst_metadata_common_strip_push_buffer (GstMetadataCommon *common, gint64 offset_orig,
+ GstBuffer ** prepend, GstBuffer ** buf);
+
+extern gboolean
+gst_metadata_common_translate_pos_to_orig (GstMetadataCommon *common,
+ gint64 pos, gint64 * orig_pos, GstBuffer ** buf);
+
+extern gboolean
+gst_metadata_common_calculate_offsets (GstMetadataCommon *common);
+
+extern void
+gst_metadata_common_update_segment_with_new_buffer (GstMetadataCommon *common,
+ guint8 ** buf, guint32 * size, MetadataChunkType type);
+
+extern const gchar *
+gst_metadata_common_get_type_name (int img_type);
+
+G_END_DECLS
+#endif /* __GST_METADATA_COMMON_H__ */
--- /dev/null
+/*
+ * GStreamer
+ * Copyright 2007 Edgard Lima <edgard.lima@indt.org.br>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Alternatively, the contents of this file may be used under the
+ * GNU Lesser General Public License Version 2.1 (the "LGPL"), in
+ * which case the following provisions apply instead of the ones
+ * mentioned above:
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+/**
+ * SECTION:metadatademux-metadata
+ *
+ * <refsect2>
+ * <title>Example launch line</title>
+ * <para>
+ * <programlisting>
+ * gst-launch -v -m filesrc location=./test.jpeg ! metadatademux ! fakesink silent=TRUE
+ * </programlisting>
+ * </para>
+ * </refsect2>
+ */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <gst/gst.h>
+
+#include "gstmetadatademux.h"
+
+#include "metadataexif.h"
+
+#include "metadataiptc.h"
+
+#include "metadataxmp.h"
+
+#include <string.h>
+
+GST_DEBUG_CATEGORY_STATIC (gst_metadata_demux_debug);
+#define GST_CAT_DEFAULT gst_metadata_demux_debug
+
+#define GOTO_DONE_IF_NULL(ptr) do { if ( NULL == (ptr) ) goto done; } while(FALSE)
+#define GOTO_DONE_IF_NULL_AND_FAIL(ptr, ret) do { if ( NULL == (ptr) ) { (ret) = FALSE; goto done; } } while(FALSE)
+
+/* Filter signals and args */
+enum
+{
+ /* FILL ME */
+ LAST_SIGNAL
+};
+
+enum
+{
+ ARG_0,
+ ARG_EXIF,
+ ARG_IPTC,
+ ARG_XMP
+};
+
+static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
+ GST_PAD_SINK,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS ("image/jpeg, "
+ "tags-extracted = (bool) false;"
+ "image/png, " "tags-extracted = (bool) false")
+ );
+
+static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
+ GST_PAD_SRC,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS ("image/jpeg, "
+ "tags-extracted = (bool) true;"
+ "image/png, " "tags-extracted = (bool) true")
+ );
+
+GST_BOILERPLATE (GstMetadataDemux, gst_metadata_demux, GstElement,
+ GST_TYPE_ELEMENT);
+
+static GstMetadataDemuxClass *metadata_parent_class = NULL;
+
+static void gst_metadata_demux_dispose (GObject * object);
+
+static void gst_metadata_demux_finalize (GObject * object);
+
+static void gst_metadata_demux_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec);
+static void gst_metadata_demux_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * pspec);
+
+static GstStateChangeReturn
+gst_metadata_demux_change_state (GstElement * element,
+ GstStateChange transition);
+
+static GstCaps *gst_metadata_demux_get_caps (GstPad * pad);
+static gboolean gst_metadata_demux_set_caps (GstPad * pad, GstCaps * caps);
+static gboolean gst_metadata_demux_src_event (GstPad * pad, GstEvent * event);
+static gboolean gst_metadata_demux_sink_event (GstPad * pad, GstEvent * event);
+
+static GstFlowReturn gst_metadata_demux_chain (GstPad * pad, GstBuffer * buf);
+
+static gboolean gst_metadata_demux_checkgetrange (GstPad * srcpad);
+
+static GstFlowReturn
+gst_metadata_demux_get_range (GstPad * pad, guint64 offset_orig, guint size,
+ GstBuffer ** buf);
+
+static gboolean gst_metadata_demux_sink_activate (GstPad * pad);
+
+static gboolean
+gst_metadata_demux_src_activate_pull (GstPad * pad, gboolean active);
+
+static gboolean gst_metadata_demux_pull_range_demux (GstMetadataDemux * filter);
+
+static void gst_metadata_demux_init_members (GstMetadataDemux * filter);
+static void gst_metadata_demux_dispose_members (GstMetadataDemux * filter);
+
+static gboolean
+gst_metadata_demux_configure_srccaps (GstMetadataDemux * filter);
+
+static gboolean gst_metadata_demux_configure_caps (GstMetadataDemux * filter);
+
+static int
+gst_metadata_demux_parse (GstMetadataDemux * filter, const guint8 * buf,
+ guint32 size);
+
+static void gst_metadata_demux_send_tags (GstMetadataDemux * filter);
+
+static const GstQueryType *gst_metadata_demux_get_query_types (GstPad * pad);
+
+static gboolean gst_metadata_demux_src_query (GstPad * pad, GstQuery * query);
+
+static void
+gst_metadata_demux_base_init (gpointer gclass)
+{
+ static GstElementDetails element_details = {
+ "Metadata demuxr",
+ "Demuxr/Extracter/Metadata",
+ "Send metadata tags (EXIF, IPTC and XMP) and remove metadata chunks from stream",
+ "Edgard Lima <edgard.lima@indt.org.br>"
+ };
+ GstElementClass *element_class = GST_ELEMENT_CLASS (gclass);
+
+ gst_element_class_add_pad_template (element_class,
+ gst_static_pad_template_get (&src_factory));
+ gst_element_class_add_pad_template (element_class,
+ gst_static_pad_template_get (&sink_factory));
+ gst_element_class_set_details (element_class, &element_details);
+}
+
+/* initialize the plugin's class */
+static void
+gst_metadata_demux_class_init (GstMetadataDemuxClass * klass)
+{
+ GObjectClass *gobject_class;
+ GstElementClass *gstelement_class;
+
+ gobject_class = (GObjectClass *) klass;
+ gstelement_class = (GstElementClass *) klass;
+
+ metadata_parent_class = g_type_class_peek_parent (klass);
+
+ gobject_class->dispose = GST_DEBUG_FUNCPTR (gst_metadata_demux_dispose);
+ gobject_class->finalize = GST_DEBUG_FUNCPTR (gst_metadata_demux_finalize);
+
+ gobject_class->set_property = gst_metadata_demux_set_property;
+ gobject_class->get_property = gst_metadata_demux_get_property;
+
+ g_object_class_install_property (gobject_class, ARG_EXIF,
+ g_param_spec_boolean ("exif", "EXIF", "Send EXIF metadata ?",
+ TRUE, G_PARAM_READWRITE));
+
+ g_object_class_install_property (gobject_class, ARG_IPTC,
+ g_param_spec_boolean ("iptc", "IPTC", "Send IPTC metadata ?",
+ TRUE, G_PARAM_READWRITE));
+
+ g_object_class_install_property (gobject_class, ARG_XMP,
+ g_param_spec_boolean ("xmp", "XMP", "Send XMP metadata ?",
+ TRUE, G_PARAM_READWRITE));
+
+ gstelement_class->change_state = gst_metadata_demux_change_state;
+
+}
+
+/* initialize the new element
+ * instantiate pads and add them to element
+ * set functions
+ * initialize structure
+ */
+static void
+gst_metadata_demux_init (GstMetadataDemux * filter,
+ GstMetadataDemuxClass * gclass)
+{
+ GstElementClass *klass = GST_ELEMENT_GET_CLASS (filter);
+
+ /* sink pad */
+
+ filter->sinkpad =
+ gst_pad_new_from_template (gst_element_class_get_pad_template (klass,
+ "sink"), "sink");
+ gst_pad_set_setcaps_function (filter->sinkpad,
+ GST_DEBUG_FUNCPTR (gst_metadata_demux_set_caps));
+ gst_pad_set_getcaps_function (filter->sinkpad,
+ GST_DEBUG_FUNCPTR (gst_metadata_demux_get_caps));
+ gst_pad_set_event_function (filter->sinkpad, gst_metadata_demux_sink_event);
+ gst_pad_set_chain_function (filter->sinkpad,
+ GST_DEBUG_FUNCPTR (gst_metadata_demux_chain));
+ gst_pad_set_activate_function (filter->sinkpad,
+ gst_metadata_demux_sink_activate);
+
+ /* source pad */
+
+ filter->srcpad =
+ gst_pad_new_from_template (gst_element_class_get_pad_template (klass,
+ "src"), "src");
+ gst_pad_set_getcaps_function (filter->srcpad,
+ GST_DEBUG_FUNCPTR (gst_metadata_demux_get_caps));
+ gst_pad_set_event_function (filter->srcpad, gst_metadata_demux_src_event);
+ gst_pad_set_query_function (filter->srcpad,
+ GST_DEBUG_FUNCPTR (gst_metadata_demux_src_query));
+ gst_pad_set_query_type_function (filter->srcpad,
+ GST_DEBUG_FUNCPTR (gst_metadata_demux_get_query_types));
+ gst_pad_use_fixed_caps (filter->srcpad);
+
+ gst_pad_set_checkgetrange_function (filter->srcpad,
+ GST_DEBUG_FUNCPTR (gst_metadata_demux_checkgetrange));
+ gst_pad_set_getrange_function (filter->srcpad, gst_metadata_demux_get_range);
+
+ gst_pad_set_activatepull_function (filter->srcpad,
+ GST_DEBUG_FUNCPTR (gst_metadata_demux_src_activate_pull));
+ /* addind pads */
+
+ gst_element_add_pad (GST_ELEMENT (filter), filter->sinkpad);
+ gst_element_add_pad (GST_ELEMENT (filter), filter->srcpad);
+
+ metadataparse_xmp_init ();
+ /* init members */
+
+ filter->options = META_OPT_EXIF | META_OPT_IPTC | META_OPT_XMP;
+
+ gst_metadata_demux_init_members (filter);
+
+}
+
+static void
+gst_metadata_demux_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec)
+{
+ GstMetadataDemux *filter = GST_METADATA_DEMUX (object);
+
+ switch (prop_id) {
+ case ARG_EXIF:
+ if (g_value_get_boolean (value))
+ filter->options |= META_OPT_EXIF;
+ else
+ filter->options &= ~META_OPT_EXIF;
+ break;
+ case ARG_IPTC:
+ if (g_value_get_boolean (value))
+ filter->options |= META_OPT_IPTC;
+ else
+ filter->options &= ~META_OPT_IPTC;
+ break;
+ case ARG_XMP:
+ if (g_value_get_boolean (value))
+ filter->options |= META_OPT_XMP;
+ else
+ filter->options &= ~META_OPT_XMP;
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gst_metadata_demux_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * pspec)
+{
+ GstMetadataDemux *filter = GST_METADATA_DEMUX (object);
+
+ switch (prop_id) {
+ case ARG_EXIF:
+ g_value_set_boolean (value, filter->options & META_OPT_EXIF);
+ break;
+ case ARG_IPTC:
+ g_value_set_boolean (value, filter->options & META_OPT_IPTC);
+ break;
+ case ARG_XMP:
+ g_value_set_boolean (value, filter->options & META_OPT_XMP);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+/* GstElement vmethod implementations */
+
+static GstCaps *
+gst_metadata_demux_get_caps (GstPad * pad)
+{
+ GstMetadataDemux *filter = NULL;
+ GstPad *otherpad;
+ GstCaps *caps_new = NULL;
+ GstCaps *caps_otherpad_peer = NULL;
+
+ filter = GST_METADATA_DEMUX (gst_pad_get_parent (pad));
+
+ (filter->srcpad == pad) ? (otherpad = filter->sinkpad) : (otherpad =
+ filter->srcpad);
+
+ caps_new = gst_caps_copy (gst_pad_get_pad_template_caps (pad));
+
+ caps_otherpad_peer = gst_pad_get_allowed_caps (otherpad);
+ GOTO_DONE_IF_NULL (caps_otherpad_peer);
+
+ if (gst_caps_is_empty (caps_otherpad_peer)
+ || gst_caps_is_any (caps_otherpad_peer)) {
+ goto done;
+ } else {
+
+ guint i;
+ guint caps_size = 0;
+
+ caps_size = gst_caps_get_size (caps_otherpad_peer);
+
+ gst_caps_unref (caps_new);
+
+ caps_new = gst_caps_new_empty ();
+
+ for (i = 0; i < caps_size; ++i) {
+ GstStructure *structure = NULL;
+ GstStructure *structure_new = NULL;
+ const gchar *mime = NULL;
+
+ structure = gst_caps_get_structure (caps_otherpad_peer, i);
+
+ mime = gst_structure_get_name (structure);
+
+ if (pad == filter->sinkpad) {
+ structure_new =
+ gst_structure_new (mime, "tags-extracted", G_TYPE_BOOLEAN, FALSE,
+ NULL);
+ } else {
+ structure_new =
+ gst_structure_new (mime, "tags-extracted", G_TYPE_BOOLEAN, TRUE,
+ NULL);
+ }
+
+ gst_caps_append_structure (caps_new, structure_new);
+
+ }
+
+ }
+
+done:
+
+ if (caps_otherpad_peer) {
+ gst_caps_unref (caps_otherpad_peer);
+ caps_otherpad_peer = NULL;
+ }
+
+ gst_object_unref (filter);
+
+ return caps_new;
+
+}
+
+static gboolean
+gst_metadata_demux_src_event (GstPad * pad, GstEvent * event)
+{
+ GstMetadataDemux *filter = NULL;
+ gboolean ret = FALSE;
+
+ filter = GST_METADATA_DEMUX (gst_pad_get_parent (pad));
+
+ switch (GST_EVENT_TYPE (event)) {
+ case GST_EVENT_SEEK:
+ {
+ gdouble rate;
+ GstFormat format;
+ GstSeekFlags flags;
+ GstSeekType start_type;
+ gint64 start;
+ GstSeekType stop_type;
+ gint64 stop;
+
+ /* we don't know where are the chunks to be stripped before demux */
+ if (filter->common.state != MT_STATE_PARSED)
+ goto done;
+
+ gst_event_parse_seek (event, &rate, &format, &flags,
+ &start_type, &start, &stop_type, &stop);
+
+ switch (format) {
+ case GST_FORMAT_BYTES:
+ break;
+ case GST_FORMAT_PERCENT:
+ if (filter->common.duration < 0)
+ goto done;
+ start = start * filter->common.duration / 100;
+ stop = stop * filter->common.duration / 100;
+ break;
+ default:
+ goto done;
+ }
+ format = GST_FORMAT_BYTES;
+
+ if (start_type == GST_SEEK_TYPE_CUR)
+ start = filter->offset + start;
+ else if (start_type == GST_SEEK_TYPE_END) {
+ if (filter->common.duration < 0)
+ goto done;
+ start = filter->common.duration + start;
+ }
+ start_type == GST_SEEK_TYPE_SET;
+
+ if (filter->prepend_buffer) {
+ gst_buffer_unref (filter->prepend_buffer);
+ filter->prepend_buffer = NULL;
+ }
+
+ /* FIXME: related to append */
+ filter->offset = start;
+ gst_metadata_common_translate_pos_to_orig (&filter->common, start, &start,
+ &filter->prepend_buffer);
+ filter->offset_orig = start;
+
+ if (stop_type == GST_SEEK_TYPE_CUR)
+ stop = filter->offset + stop;
+ else if (stop_type == GST_SEEK_TYPE_END) {
+ if (filter->common.duration < 0)
+ goto done;
+ stop = filter->common.duration + stop;
+ }
+ stop_type == GST_SEEK_TYPE_SET;
+
+ gst_metadata_common_translate_pos_to_orig (&filter->common, stop, &stop,
+ NULL);
+
+ gst_event_unref (event);
+ event = gst_event_new_seek (rate, format, flags,
+ start_type, start, stop_type, stop);
+
+ }
+ break;
+ default:
+ break;
+ }
+
+ ret = gst_pad_event_default (pad, event);
+ event = NULL; /* event has another owner */
+
+done:
+
+ if (event) {
+ gst_event_unref (event);
+ }
+
+ gst_object_unref (filter);
+
+ return ret;
+
+}
+
+static gboolean
+gst_metadata_demux_sink_event (GstPad * pad, GstEvent * event)
+{
+ GstMetadataDemux *filter = NULL;
+ gboolean ret = FALSE;
+
+ filter = GST_METADATA_DEMUX (gst_pad_get_parent (pad));
+
+ switch (GST_EVENT_TYPE (event)) {
+ case GST_EVENT_EOS:
+ if (filter->need_more_data) {
+ GST_ELEMENT_WARNING (filter, STREAM, DEMUX, (NULL),
+ ("Need more data. Unexpected EOS"));
+ }
+ break;
+ case GST_EVENT_TAG:
+ break;
+ default:
+ break;
+ }
+
+ ret = gst_pad_event_default (pad, event);
+
+ gst_object_unref (filter);
+
+ return ret;
+
+}
+
+static void
+gst_metadata_demux_dispose (GObject * object)
+{
+ GstMetadataDemux *filter = NULL;
+
+ filter = GST_METADATA_DEMUX (object);
+
+ gst_metadata_demux_dispose_members (filter);
+
+ metadataparse_xmp_dispose ();
+
+ G_OBJECT_CLASS (metadata_parent_class)->dispose (object);
+}
+
+static void
+gst_metadata_demux_finalize (GObject * object)
+{
+ G_OBJECT_CLASS (metadata_parent_class)->finalize (object);
+}
+
+static void
+gst_metadata_demux_dispose_members (GstMetadataDemux * filter)
+{
+ gst_metadata_common_dispose (&filter->common);
+
+ if (filter->adapter_parsing) {
+ gst_object_unref (filter->adapter_parsing);
+ filter->adapter_parsing = NULL;
+ }
+
+ if (filter->adapter_holding) {
+ gst_object_unref (filter->adapter_holding);
+ filter->adapter_holding = NULL;
+ }
+
+ if (filter->prepend_buffer) {
+ gst_buffer_unref (filter->prepend_buffer);
+ filter->prepend_buffer = NULL;
+ }
+}
+
+static void
+gst_metadata_demux_init_members (GstMetadataDemux * filter)
+{
+ filter->need_send_tag = FALSE;
+
+ filter->adapter_parsing = NULL;
+ filter->adapter_holding = NULL;
+ filter->next_offset = 0;
+ filter->next_size = 0;
+ filter->img_type = IMG_NONE;
+ filter->offset_orig = 0;
+ filter->offset = 0;
+ filter->need_more_data = FALSE;
+
+ filter->prepend_buffer = NULL;
+
+ memset (&filter->common, 0x00, sizeof (filter->common));
+
+}
+
+static gboolean
+gst_metadata_demux_configure_srccaps (GstMetadataDemux * filter)
+{
+ GstCaps *caps = NULL;
+ gboolean ret = FALSE;
+ gchar *mime = NULL;
+
+ switch (filter->img_type) {
+ case IMG_JPEG:
+ mime = "image/jpeg";
+ break;
+ case IMG_PNG:
+ mime = "image/png";
+ break;
+ default:
+ ret = FALSE;
+ goto done;
+ break;
+ }
+
+ caps =
+ gst_caps_new_simple (mime, "tags-extracted", G_TYPE_BOOLEAN, TRUE, NULL);
+
+ ret = gst_pad_set_caps (filter->srcpad, caps);
+
+done:
+
+ if (caps) {
+ gst_caps_unref (caps);
+ caps = NULL;
+ }
+
+ return ret;
+
+}
+
+static gboolean
+gst_metadata_demux_configure_caps (GstMetadataDemux * filter)
+{
+ GstCaps *caps = NULL;
+ gboolean ret = FALSE;
+ gchar *mime = NULL;
+ GstPad *peer = NULL;
+
+ peer = gst_pad_get_peer (filter->sinkpad);
+
+ switch (filter->img_type) {
+ case IMG_JPEG:
+ mime = "image/jpeg";
+ break;
+ case IMG_PNG:
+ mime = "image/png";
+ break;
+ default:
+ goto done;
+ break;
+ }
+
+ caps = gst_caps_new_simple (mime, NULL);
+
+ if (!gst_pad_set_caps (peer, caps)) {
+ goto done;
+ }
+
+ ret = gst_pad_set_caps (filter->sinkpad, caps);
+
+done:
+
+ if (caps) {
+ gst_caps_unref (caps);
+ caps = NULL;
+ }
+
+ if (peer) {
+ gst_object_unref (peer);
+ peer = NULL;
+ }
+
+ return ret;
+
+}
+
+/* this function handles the link with other elements */
+static gboolean
+gst_metadata_demux_set_caps (GstPad * pad, GstCaps * caps)
+{
+ GstMetadataDemux *filter = NULL;
+ GstStructure *structure = NULL;
+ const gchar *mime = NULL;
+ gboolean ret = FALSE;
+ gboolean demuxd = TRUE;
+
+ filter = GST_METADATA_DEMUX (gst_pad_get_parent (pad));
+
+ structure = gst_caps_get_structure (caps, 0);
+
+ mime = gst_structure_get_name (structure);
+
+ if (strcmp (mime, "image/jpeg") == 0) {
+ filter->img_type = IMG_JPEG;
+ } else if (strcmp (mime, "image/png") == 0) {
+ filter->img_type = IMG_PNG;
+ } else {
+ ret = FALSE;
+ goto done;
+ }
+
+ if (gst_structure_get_boolean (structure, "tags-extracted", &demuxd)) {
+ if (demuxd == TRUE) {
+ ret = FALSE;
+ goto done;
+ }
+ }
+
+ ret = gst_metadata_demux_configure_srccaps (filter);
+
+done:
+
+ gst_object_unref (filter);
+
+ return ret;
+}
+
+static void
+gst_metadata_demux_send_tags (GstMetadataDemux * filter)
+{
+
+ GstMessage *msg;
+ GstTagList *taglist = gst_tag_list_new ();
+ GstEvent *event;
+
+ if (filter->options & META_OPT_EXIF)
+ metadataparse_exif_tag_list_add (taglist, GST_TAG_MERGE_KEEP,
+ filter->common.metadata.exif_adapter, METADATA_TAG_MAP_WHOLECHUNK);
+ if (filter->options & META_OPT_IPTC)
+ metadataparse_iptc_tag_list_add (taglist, GST_TAG_MERGE_KEEP,
+ filter->common.metadata.iptc_adapter, METADATA_TAG_MAP_WHOLECHUNK);
+ if (filter->options & META_OPT_XMP)
+ metadataparse_xmp_tag_list_add (taglist, GST_TAG_MERGE_KEEP,
+ filter->common.metadata.xmp_adapter, METADATA_TAG_MAP_WHOLECHUNK);
+
+ if (taglist && !gst_tag_list_is_empty (taglist)) {
+
+ msg =
+ gst_message_new_tag (GST_OBJECT (filter), gst_tag_list_copy (taglist));
+ gst_element_post_message (GST_ELEMENT (filter), msg);
+
+ event = gst_event_new_tag (taglist);
+ gst_pad_push_event (filter->srcpad, event);
+ taglist = NULL;
+ }
+
+ if (!taglist)
+ taglist = gst_tag_list_new ();
+
+ if (filter->options & META_OPT_EXIF)
+ metadataparse_exif_tag_list_add (taglist, GST_TAG_MERGE_KEEP,
+ filter->common.metadata.exif_adapter, METADATA_TAG_MAP_INDIVIDUALS);
+ if (filter->options & META_OPT_IPTC)
+ metadataparse_iptc_tag_list_add (taglist, GST_TAG_MERGE_KEEP,
+ filter->common.metadata.iptc_adapter, METADATA_TAG_MAP_INDIVIDUALS);
+ if (filter->options & META_OPT_XMP)
+ metadataparse_xmp_tag_list_add (taglist, GST_TAG_MERGE_KEEP,
+ filter->common.metadata.xmp_adapter, METADATA_TAG_MAP_INDIVIDUALS);
+
+ if (taglist && !gst_tag_list_is_empty (taglist)) {
+
+ msg = gst_message_new_tag (GST_OBJECT (filter), taglist);
+ gst_element_post_message (GST_ELEMENT (filter), msg);
+ taglist = NULL;
+ }
+
+ if (taglist)
+ gst_tag_list_free (taglist);
+
+ filter->need_send_tag = FALSE;
+}
+
+static const GstQueryType *
+gst_metadata_demux_get_query_types (GstPad * pad)
+{
+ static const GstQueryType gst_metadata_demux_src_query_types[] = {
+ GST_QUERY_POSITION,
+ GST_QUERY_DURATION,
+ GST_QUERY_FORMATS,
+ 0
+ };
+
+ return gst_metadata_demux_src_query_types;
+}
+
+static gboolean
+gst_metadata_demux_src_query (GstPad * pad, GstQuery * query)
+{
+ gboolean ret = FALSE;
+ GstFormat format;
+ GstMetadataDemux *filter = GST_METADATA_DEMUX (gst_pad_get_parent (pad));
+
+ switch (GST_QUERY_TYPE (query)) {
+ case GST_QUERY_POSITION:
+ gst_query_parse_position (query, &format, NULL);
+
+ if (format == GST_FORMAT_BYTES) {
+ gst_query_set_position (query, GST_FORMAT_BYTES, filter->offset);
+ ret = TRUE;
+ }
+ break;
+ case GST_QUERY_DURATION:
+ if (filter->common.state != MT_STATE_PARSED)
+ goto done;
+
+ gst_query_parse_duration (query, &format, NULL);
+
+ if (format == GST_FORMAT_BYTES) {
+ if (filter->common.duration >= 0) {
+ gst_query_set_duration (query, GST_FORMAT_BYTES,
+ filter->common.duration);
+ ret = TRUE;
+ }
+ }
+ break;
+ case GST_QUERY_FORMATS:
+ gst_query_set_formats (query, 1, GST_FORMAT_BYTES);
+ ret = TRUE;
+ break;
+ default:
+ break;
+ }
+
+done:
+
+ gst_object_unref (filter);
+
+ return ret;
+
+}
+
+/*
+ * Do parsing step-by-step and reconfigure caps if need
+ * return:
+ * META_PARSING_ERROR
+ * META_PARSING_DONE
+ * META_PARSING_NEED_MORE_DATA
+ */
+
+static int
+gst_metadata_demux_parse (GstMetadataDemux * filter, const guint8 * buf,
+ guint32 size)
+{
+
+ int ret = META_PARSING_ERROR;
+
+ filter->next_offset = 0;
+ filter->next_size = 0;
+
+ ret = metadata_parse (&filter->common.metadata, buf, size,
+ &filter->next_offset, &filter->next_size);
+
+ if (ret == META_PARSING_ERROR) {
+ if (META_DATA_IMG_TYPE (filter->common.metadata) == IMG_NONE) {
+ /* image type not recognized */
+ GST_ELEMENT_ERROR (filter, STREAM, TYPE_NOT_FOUND, (NULL),
+ ("Only jpeg and png are supported"));
+ goto done;
+ }
+ } else if (ret == META_PARSING_NEED_MORE_DATA) {
+ filter->need_more_data = TRUE;
+ } else {
+ filter->common.state = MT_STATE_PARSED;
+ gst_metadata_common_calculate_offsets (&filter->common);
+ filter->need_more_data = FALSE;
+ filter->need_send_tag = TRUE;
+ }
+
+ /* reconfigure caps if it is different from type detected by 'metadata_demux' function */
+ if (filter->img_type != META_DATA_IMG_TYPE (filter->common.metadata)) {
+ filter->img_type = META_DATA_IMG_TYPE (filter->common.metadata);
+ if (!gst_metadata_demux_configure_caps (filter)) {
+ GST_ELEMENT_ERROR (filter, STREAM, FORMAT, (NULL),
+ ("Couldn't reconfigure caps for %s",
+ gst_metadata_common_get_type_name (filter->img_type)));
+ ret = META_PARSING_ERROR;
+ goto done;
+ }
+ }
+
+done:
+
+ return ret;
+
+}
+
+/* chain function
+ * this function does the actual processing
+ */
+
+/* FIXME */
+/* Current demux is just done before is pull mode could be activated */
+/* may be it is possible to demux in chain mode by doing some trick with gst-adapter */
+/* the pipeline below would be a test for that case */
+/* gst-launch-0.10 filesrc location=Exif.jpg ! queue ! metadatademux ! filesink location=gen3.jpg */
+
+static GstFlowReturn
+gst_metadata_demux_chain (GstPad * pad, GstBuffer * buf)
+{
+ GstMetadataDemux *filter = NULL;
+ GstFlowReturn ret = GST_FLOW_ERROR;
+ guint32 buf_size = 0;
+ guint32 new_buf_size = 0;
+ gboolean append = FALSE;
+
+ filter = GST_METADATA_DEMUX (gst_pad_get_parent (pad));
+
+ if (filter->common.state != MT_STATE_PARSED) {
+ guint32 adpt_size = gst_adapter_available (filter->adapter_parsing);
+
+ if (filter->next_offset) {
+ if (filter->next_offset >= adpt_size) {
+ /* clean adapter */
+ gst_adapter_clear (filter->adapter_parsing);
+ filter->next_offset -= adpt_size;
+ if (filter->next_offset >= GST_BUFFER_SIZE (buf)) {
+ /* we don't need data in this buffer */
+ filter->next_offset -= GST_BUFFER_SIZE (buf);
+ } else {
+ GstBuffer *new_buf;
+
+ /* add to adapter just need part from buf */
+ new_buf =
+ gst_buffer_new_and_alloc (GST_BUFFER_SIZE (buf) -
+ filter->next_offset);
+ memcpy (GST_BUFFER_DATA (new_buf),
+ GST_BUFFER_DATA (buf) + filter->next_offset,
+ GST_BUFFER_SIZE (buf) - filter->next_offset);
+ filter->next_offset = 0;
+ gst_adapter_push (filter->adapter_parsing, new_buf);
+ }
+ } else {
+ /* remove first bytes and add buffer */
+ gst_adapter_flush (filter->adapter_parsing, filter->next_offset);
+ filter->next_offset = 0;
+ gst_adapter_push (filter->adapter_parsing, gst_buffer_copy (buf));
+ }
+ } else {
+ /* just push buffer */
+ gst_adapter_push (filter->adapter_parsing, gst_buffer_copy (buf));
+ }
+
+ adpt_size = gst_adapter_available (filter->adapter_parsing);
+
+ if (adpt_size && filter->next_size <= adpt_size) {
+ const guint8 *new_buf =
+ gst_adapter_peek (filter->adapter_parsing, adpt_size);
+
+ if (gst_metadata_demux_parse (filter, new_buf,
+ adpt_size) == META_PARSING_ERROR) {
+ ret = GST_FLOW_ERROR;
+ goto done;
+ }
+ }
+ }
+
+ if (filter->common.state == MT_STATE_PARSED) {
+
+ if (filter->adapter_holding) {
+ gst_adapter_push (filter->adapter_holding, buf);
+ buf = gst_adapter_take_buffer (filter->adapter_holding,
+ gst_adapter_available (filter->adapter_holding));
+ g_object_unref (filter->adapter_holding);
+ filter->adapter_holding = NULL;
+ }
+
+ if (filter->need_send_tag) {
+ gst_metadata_demux_send_tags (filter);
+ }
+
+ if (filter->offset_orig + GST_BUFFER_SIZE (buf) ==
+ filter->common.duration_orig)
+ append = TRUE;
+
+ buf_size = GST_BUFFER_SIZE (buf);
+
+ gst_metadata_common_strip_push_buffer (&filter->common, filter->offset_orig,
+ &filter->prepend_buffer, &buf);
+
+ if (buf) { /* may be all buffer has been striped */
+ gst_buffer_set_caps (buf, GST_PAD_CAPS (filter->srcpad));
+ new_buf_size = GST_BUFFER_SIZE (buf);
+
+ ret = gst_pad_push (filter->srcpad, buf);
+ buf = NULL; /* this function don't owner it anymore */
+ if (ret != GST_FLOW_OK)
+ goto done;
+ } else {
+ ret = GST_FLOW_OK;
+ }
+
+ if (append && filter->common.append_buffer) {
+ gst_buffer_set_caps (filter->common.append_buffer,
+ GST_PAD_CAPS (filter->srcpad));
+ gst_buffer_ref (filter->common.append_buffer);
+ ret = gst_pad_push (filter->srcpad, filter->common.append_buffer);
+ if (ret != GST_FLOW_OK)
+ goto done;
+ }
+
+ filter->offset_orig += buf_size;
+ filter->offset += new_buf_size;
+
+ } else {
+ /* just store while still not demuxd */
+ if (!filter->adapter_holding)
+ filter->adapter_holding = gst_adapter_new ();
+ gst_adapter_push (filter->adapter_holding, buf);
+ buf = NULL;
+ ret = GST_FLOW_OK;
+ }
+
+done:
+
+
+ if (buf) {
+ /* there was an error and buffer wasn't pushed */
+ gst_buffer_unref (buf);
+ buf = NULL;
+ }
+
+ gst_object_unref (filter);
+
+ return ret;
+
+}
+
+static gboolean
+gst_metadata_demux_pull_range_demux (GstMetadataDemux * filter)
+{
+
+ int res;
+ gboolean ret = TRUE;
+ guint32 offset = 0;
+ gint64 duration = 0;
+ GstFormat format = GST_FORMAT_BYTES;
+
+ if (!(ret =
+ gst_pad_query_peer_duration (filter->sinkpad, &format, &duration))) {
+ /* this should never happen, but try chain anyway */
+ ret = TRUE;
+ goto done;
+ }
+ filter->common.duration_orig = duration;
+
+ if (format != GST_FORMAT_BYTES) {
+ /* this should never happen, but try chain anyway */
+ ret = TRUE;
+ goto done;
+ }
+
+ do {
+ GstFlowReturn flow;
+ GstBuffer *buf = NULL;
+
+ offset += filter->next_offset;
+
+ /* 'filter->next_size' only says the minimum required number of bytes.
+ We try provided more bytes (4096) just to avoid a lot of calls to 'metadata_demux'
+ returning META_PARSING_NEED_MORE_DATA */
+ if (filter->next_size < 4096) {
+ if (duration - offset < 4096) {
+ /* In case there is no 4096 bytes available upstream.
+ It should be done upstream but we do here for safety */
+ filter->next_size = duration - offset;
+ } else {
+ filter->next_size = 4096;
+ }
+ }
+
+ flow =
+ gst_pad_pull_range (filter->sinkpad, offset, filter->next_size, &buf);
+ if (GST_FLOW_OK != flow) {
+ ret = FALSE;
+ goto done;
+ }
+
+ res =
+ gst_metadata_demux_parse (filter, GST_BUFFER_DATA (buf),
+ GST_BUFFER_SIZE (buf));
+ if (res == META_PARSING_ERROR) {
+ ret = FALSE;
+ goto done;
+ }
+
+ gst_buffer_unref (buf);
+
+ } while (res == META_PARSING_NEED_MORE_DATA);
+
+done:
+
+ return ret;
+
+}
+
+static gboolean
+gst_metadata_demux_sink_activate (GstPad * pad)
+{
+ GstMetadataDemux *filter = NULL;
+ gboolean ret = TRUE;
+
+
+ filter = GST_METADATA_DEMUX (GST_PAD_PARENT (pad));
+
+ if (!gst_pad_check_pull_range (pad) ||
+ !gst_pad_activate_pull (filter->sinkpad, TRUE)) {
+ /* FIXME: currently it is not possible to demux in chain. Fail here ? */
+ /* nothing to be done by now, activate push mode */
+ return gst_pad_activate_push (pad, TRUE);
+ }
+
+ /* try to demux */
+ if (filter->common.state == MT_STATE_NULL) {
+ ret = gst_metadata_demux_pull_range_demux (filter);
+ }
+
+done:
+
+ if (ret) {
+ gst_pad_activate_pull (pad, FALSE);
+ gst_pad_activate_push (filter->srcpad, FALSE);
+ if (!gst_pad_is_active (pad)) {
+ ret = gst_pad_activate_push (filter->srcpad, TRUE);
+ ret = ret && gst_pad_activate_push (pad, TRUE);
+ }
+ }
+
+ return ret;
+
+}
+
+static gboolean
+gst_metadata_demux_checkgetrange (GstPad * srcpad)
+{
+ GstMetadataDemux *filter = NULL;
+
+ filter = GST_METADATA_DEMUX (GST_PAD_PARENT (srcpad));
+
+ return gst_pad_check_pull_range (filter->sinkpad);
+}
+
+static GstFlowReturn
+gst_metadata_demux_get_range (GstPad * pad,
+ guint64 offset, guint size, GstBuffer ** buf)
+{
+ GstMetadataDemux *filter = NULL;
+ GstFlowReturn ret = GST_FLOW_OK;
+ gint64 offset_orig = 0;
+ guint size_orig;
+ GstBuffer *prepend = NULL;
+ gboolean need_append = FALSE;
+
+ filter = GST_METADATA_DEMUX (GST_PAD_PARENT (pad));
+
+ if (filter->common.state != MT_STATE_PARSED) {
+ ret = GST_FLOW_ERROR;
+ goto done;
+ }
+
+ if (offset + size > filter->common.duration) {
+ size = filter->common.duration - offset;
+ }
+
+ size_orig = size;
+
+ if (filter->need_send_tag) {
+ gst_metadata_demux_send_tags (filter);
+ }
+
+ gst_metadata_common_translate_pos_to_orig (&filter->common, offset,
+ &offset_orig, &prepend);
+
+ if (size > 1) {
+ gint64 pos;
+
+ pos = offset + size - 1;
+ gst_metadata_common_translate_pos_to_orig (&filter->common, pos, &pos,
+ NULL);
+ size_orig = pos + 1 - offset_orig;
+ }
+
+ if (size_orig) {
+
+ ret = gst_pad_pull_range (filter->sinkpad, offset_orig, size_orig, buf);
+
+ if (ret == GST_FLOW_OK && *buf) {
+ gst_metadata_common_strip_push_buffer (&filter->common, offset_orig,
+ &prepend, buf);
+
+ if (GST_BUFFER_SIZE (*buf) < size) {
+ /* need append */
+ need_append = TRUE;
+ }
+
+ }
+ } else {
+ *buf = prepend;
+ }
+
+done:
+
+ if (need_append) {
+ /* FIXME: together with SEEK and
+ * gst_metadata_common_translate_pos_to_orig
+ * this way if chunk is added in the end we are in trolble
+ * ...still not implemented 'cause it will not be the
+ * case for the time being
+ */
+ }
+
+ return ret;
+
+}
+
+static gboolean
+gst_metadata_demux_src_activate_pull (GstPad * pad, gboolean active)
+{
+ GstMetadataDemux *filter = NULL;
+ gboolean ret;
+
+ filter = GST_METADATA_DEMUX (gst_pad_get_parent (pad));
+
+ ret = gst_pad_activate_pull (filter->sinkpad, active);
+
+ if (ret && filter->common.state == MT_STATE_NULL) {
+ ret = gst_metadata_demux_pull_range_demux (filter);
+ }
+
+ gst_object_unref (filter);
+
+ return ret;
+}
+
+
+static GstStateChangeReturn
+gst_metadata_demux_change_state (GstElement * element,
+ GstStateChange transition)
+{
+ GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
+ GstMetadataDemux *filter = GST_METADATA_DEMUX (element);
+
+ switch (transition) {
+ case GST_STATE_CHANGE_NULL_TO_READY:
+ gst_metadata_demux_init_members (filter);
+ filter->adapter_parsing = gst_adapter_new ();
+ gst_metadata_common_init (&filter->common, TRUE, filter->options);
+ break;
+ default:
+ break;
+ }
+
+ ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
+ if (ret == GST_STATE_CHANGE_FAILURE)
+ goto done;
+
+ switch (transition) {
+ case GST_STATE_CHANGE_PAUSED_TO_READY:
+ filter->offset = 0;
+ filter->offset_orig = 0;
+ if (filter->adapter_parsing) {
+ gst_adapter_clear (filter->adapter_parsing);
+ }
+ if (filter->adapter_holding) {
+ gst_adapter_clear (filter->adapter_holding);
+ }
+ if (filter->common.state != MT_STATE_PARSED) {
+ /* cleanup demuxr */
+ gst_metadata_common_dispose (&filter->common);
+ gst_metadata_common_init (&filter->common, TRUE, filter->options);
+ }
+ break;
+ case GST_STATE_CHANGE_READY_TO_NULL:
+ gst_metadata_demux_dispose_members (filter);
+ break;
+ default:
+ break;
+ }
+
+done:
+
+ return ret;
+}
+
+/*
+ * element plugin init function
+ */
+
+gboolean
+gst_metadata_demux_plugin_init (GstPlugin * plugin)
+{
+ GST_DEBUG_CATEGORY_INIT (gst_metadata_demux_debug, "metadatademux", 0,
+ "Metadata demuxer");
+
+ return gst_element_register (plugin, "metadatademux",
+ GST_RANK_PRIMARY + 1, GST_TYPE_METADATA_DEMUX);
+}
--- /dev/null
+/*
+ * GStreamer
+ * Copyright 2007 Edgard Lima <edgard.lima@indt.org.br>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Alternatively, the contents of this file may be used under the
+ * GNU Lesser General Public License Version 2.1 (the "LGPL"), in
+ * which case the following provisions apply instead of the ones
+ * mentioned above:
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __GST_METADATA_DEMUX_H__
+#define __GST_METADATA_DEMUX_H__
+
+#include <gst/gst.h>
+
+#include "gstmetadatacommon.h"
+
+G_BEGIN_DECLS
+/* #defines don't like whitespacey bits */
+#define GST_TYPE_METADATA_DEMUX \
+ (gst_metadata_demux_get_type())
+#define GST_METADATA_DEMUX(obj) \
+ (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_METADATA_DEMUX,GstMetadataDemux))
+#define GST_METADATA_DEMUX_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_METADATA_DEMUX,GstMetadataDemuxClass))
+#define GST_IS_METADATA_DEMUX(obj) \
+ (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_METADATA_DEMUX))
+#define GST_IS_METADATA_DEMUX_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_METADATA_DEMUX))
+typedef struct _GstMetadataDemux GstMetadataDemux;
+typedef struct _GstMetadataDemuxClass GstMetadataDemuxClass;
+
+struct _GstMetadataDemux
+{
+ GstElement element;
+
+ GstPad *sinkpad, *srcpad;
+
+ GstMetadataCommon common;
+
+ guint8 options;
+
+ gboolean need_send_tag;
+
+ GstAdapter *adapter_parsing;
+ GstAdapter *adapter_holding;
+ guint32 next_offset;
+ guint32 next_size;
+ ImageType img_type;
+
+ gint64 offset_orig; /* offset in original stream */
+ gint64 offset; /* offset in current stream */
+
+ GstBuffer * prepend_buffer;
+
+ gboolean need_more_data;
+
+
+
+};
+
+struct _GstMetadataDemuxClass
+{
+ GstElementClass parent_class;
+};
+
+extern GType gst_metadata_demux_get_type (void);
+
+G_END_DECLS
+#endif /* __GST_METADATA_DEMUX_H__ */
static void gst_metadata_mux_dispose_members (GstMetadataMux * filter);
static gboolean gst_metadata_mux_configure_srccaps (GstMetadataMux * filter);
+
static gboolean gst_metadata_mux_configure_caps (GstMetadataMux * filter);
static int
static void gst_metadata_mux_create_chunks_from_tags (GstMetadataMux * filter);
-static int
-gst_metadata_mux_get_strip_seg (const gint64 offset, guint32 size,
- const gint64 seg_offset, const guint32 seg_size,
- gint64 * boffset, guint32 * bsize, guint32 * seg_binter);
-
-static gboolean
-gst_metadata_mux_strip_push_buffer (GstMetadataMux * filter,
- gint64 offset_orig, GstBuffer ** prepend, GstBuffer ** buf);
-
-static gboolean
-gst_metadata_mux_translate_pos_to_orig (GstMetadataMux * filter, gint64 pos,
- gint64 * orig_pos, GstBuffer ** buf);
-
static const GstQueryType *gst_metadata_mux_get_query_types (GstPad * pad);
static gboolean gst_metadata_mux_src_query (GstPad * pad, GstQuery * query);
-static gboolean gst_metadata_mux_calculate_offsets (GstMetadataMux * filter);
-
static void
gst_metadata_mux_base_init (gpointer gclass)
{
gst_element_add_pad (GST_ELEMENT (filter), filter->sinkpad);
gst_element_add_pad (GST_ELEMENT (filter), filter->srcpad);
-
metadataparse_xmp_init ();
/* init members */
filter->options = META_OPT_EXIF | META_OPT_IPTC | META_OPT_XMP;
+
gst_metadata_mux_init_members (filter);
}
}
+static void
+gst_metadata_create_chunks_from_tags (GstMetadataMux * filter)
+{
+
+ GstMessage *msg;
+ GstTagSetter *setter = GST_TAG_SETTER (filter);
+ const GstTagList *taglist = gst_tag_setter_get_tag_list (setter);
+ GstEvent *event;
+ guint8 *buf = NULL;
+ guint32 size = 0;
+
+ if (taglist) {
+
+ if (filter->options & META_OPT_EXIF) {
+ metadatamux_exif_create_chunk_from_tag_list (&buf, &size, taglist);
+ gst_metadata_common_update_segment_with_new_buffer (&filter->common, &buf,
+ &size, MD_CHUNK_EXIF);
+ }
+
+ if (filter->options & META_OPT_IPTC) {
+ metadatamux_iptc_create_chunk_from_tag_list (&buf, &size, taglist);
+ gst_metadata_common_update_segment_with_new_buffer (&filter->common, &buf,
+ &size, MD_CHUNK_IPTC);
+ }
+
+ if (filter->options & META_OPT_XMP) {
+ metadatamux_xmp_create_chunk_from_tag_list (&buf, &size, taglist);
+ gst_metadata_common_update_segment_with_new_buffer (&filter->common, &buf,
+ &size, MD_CHUNK_XMP);
+ }
+
+ }
+
+ if (buf) {
+ g_free (buf);
+ }
+
+ metadata_chunk_array_remove_zero_size (&filter->common.metadata.
+ inject_chunks);
+
+}
+
static gboolean
gst_metadata_mux_src_event (GstPad * pad, GstEvent * event)
{
/* we don't know where are the chunks to be stripped before mux */
if (filter->need_calculate_offset) {
- if (!gst_metadata_mux_calculate_offsets (filter))
+ gst_metadata_create_chunks_from_tags (filter);
+ if (gst_metadata_common_calculate_offsets (&filter->common))
+ filter->need_calculate_offset = FALSE;
+ else
goto done;
}
case GST_FORMAT_BYTES:
break;
case GST_FORMAT_PERCENT:
- if (filter->duration < 0)
+ if (filter->common.duration < 0)
goto done;
- start = start * filter->duration / 100;
- stop = stop * filter->duration / 100;
+ start = start * filter->common.duration / 100;
+ stop = stop * filter->common.duration / 100;
break;
default:
goto done;
if (start_type == GST_SEEK_TYPE_CUR)
start = filter->offset + start;
else if (start_type == GST_SEEK_TYPE_END) {
- if (filter->duration < 0)
+ if (filter->common.duration < 0)
goto done;
- start = filter->duration + start;
+ start = filter->common.duration + start;
}
start_type == GST_SEEK_TYPE_SET;
/* FIXME: related to append */
filter->offset = start;
- gst_metadata_mux_translate_pos_to_orig (filter, start, &start,
+ gst_metadata_common_translate_pos_to_orig (&filter->common, start, &start,
&filter->prepend_buffer);
filter->offset_orig = start;
if (stop_type == GST_SEEK_TYPE_CUR)
stop = filter->offset + stop;
else if (stop_type == GST_SEEK_TYPE_END) {
- if (filter->duration < 0)
+ if (filter->common.duration < 0)
goto done;
- stop = filter->duration + stop;
+ stop = filter->common.duration + stop;
}
stop_type == GST_SEEK_TYPE_SET;
- gst_metadata_mux_translate_pos_to_orig (filter, stop, &stop, NULL);
+ gst_metadata_common_translate_pos_to_orig (&filter->common, stop, &stop,
+ NULL);
gst_event_unref (event);
event = gst_event_new_seek (rate, format, flags,
static void
gst_metadata_mux_dispose_members (GstMetadataMux * filter)
{
- metadata_dispose (&filter->mux_data);
+ gst_metadata_common_dispose (&filter->common);
if (filter->adapter_parsing) {
gst_object_unref (filter->adapter_parsing);
filter->adapter_holding = NULL;
}
- if (filter->append_buffer) {
- gst_buffer_unref (filter->append_buffer);
- filter->append_buffer = NULL;
- }
-
if (filter->prepend_buffer) {
gst_buffer_unref (filter->prepend_buffer);
filter->prepend_buffer = NULL;
filter->next_size = 0;
filter->img_type = IMG_NONE;
filter->offset_orig = 0;
- filter->duration_orig = 0;
filter->offset = 0;
- filter->duration = 0;
- filter->state = MT_STATE_NULL;
filter->need_more_data = FALSE;
- filter->append_buffer = NULL;
filter->prepend_buffer = NULL;
- memset (&filter->mux_data, 0x00, sizeof (MetaData));
+ memset (&filter->common, 0x00, sizeof (filter->common));
}
return ret;
}
-static const gchar *
-gst_metadata_mux_get_type_name (int img_type)
-{
- gchar *type_name = NULL;
-
- switch (img_type) {
- case IMG_JPEG:
- type_name = "jpeg";
- break;
- case IMG_PNG:
- type_name = "png";
- break;
- default:
- type_name = "invalid type";
- break;
- }
- return type_name;
-}
-
-static void
-gst_metadata_update_segment (GstMetadataMux * filter, guint8 ** buf,
- guint32 * size, MetadataChunkType type)
-{
- int i;
- MetadataChunk *inject = filter->mux_data.inject_chunks.chunk;
- const gsize inject_len = filter->mux_data.inject_chunks.len;
-
- if (!(buf && size))
- goto done;
- if (*buf == 0)
- goto done;
- if (*size == 0)
- goto done;
-
- for (i = 0; i < inject_len; ++i) {
- if (inject[i].type == type) {
- inject[i].size = *size;
- if (inject[i].data)
- g_free (inject[i].data);
- inject[i].data = *buf;
- *size = 0;
- *buf = 0;
- break;
- }
- }
-
-done:
-
- return;
-
-}
-
-static void
-gst_metadata_create_chunks_from_tags (GstMetadataMux * filter)
-{
-
- GstMessage *msg;
- GstTagSetter *setter = GST_TAG_SETTER (filter);
- const GstTagList *taglist = gst_tag_setter_get_tag_list (setter);
- GstEvent *event;
- guint8 *buf = NULL;
- guint32 size = 0;
-
- if (taglist) {
-
- if (filter->options & META_OPT_EXIF) {
- metadatamux_exif_create_chunk_from_tag_list (&buf, &size, taglist);
- gst_metadata_update_segment (filter, &buf, &size, MD_CHUNK_EXIF);
- }
-
- if (filter->options & META_OPT_IPTC) {
- metadatamux_iptc_create_chunk_from_tag_list (&buf, &size, taglist);
- gst_metadata_update_segment (filter, &buf, &size, MD_CHUNK_IPTC);
- }
-
- if (filter->options & META_OPT_XMP) {
- metadatamux_xmp_create_chunk_from_tag_list (&buf, &size, taglist);
- gst_metadata_update_segment (filter, &buf, &size, MD_CHUNK_XMP);
- }
-
- }
-
- if (buf) {
- g_free (buf);
- }
-
- metadata_chunk_array_remove_zero_size (&filter->mux_data.inject_chunks);
-
-}
-
static const GstQueryType *
gst_metadata_mux_get_query_types (GstPad * pad)
{
break;
case GST_QUERY_DURATION:
if (filter->need_calculate_offset) {
- if (!gst_metadata_mux_calculate_offsets (filter))
+ gst_metadata_create_chunks_from_tags (filter);
+ if (gst_metadata_common_calculate_offsets (&filter->common))
+ filter->need_calculate_offset = FALSE;
+ else
goto done;
}
gst_query_parse_duration (query, &format, NULL);
if (format == GST_FORMAT_BYTES) {
- if (filter->duration >= 0) {
- gst_query_set_duration (query, GST_FORMAT_BYTES, filter->duration);
+ if (filter->common.duration >= 0) {
+ gst_query_set_duration (query, GST_FORMAT_BYTES,
+ filter->common.duration);
ret = TRUE;
}
}
}
-/*
- * return:
- * -1 -> error
- * 0 -> succeded
- * 1 -> need more data
- */
-
-static gboolean
-gst_metadata_mux_calculate_offsets (GstMetadataMux * filter)
-{
- int i, j;
- guint32 append_size;
- guint32 bytes_striped, bytes_inject;
- MetadataChunk *strip = filter->mux_data.strip_chunks.chunk;
- MetadataChunk *inject = filter->mux_data.inject_chunks.chunk;
- gsize strip_len;
- gsize inject_len;
-
- if (filter->state != MT_STATE_MUXED)
- return FALSE;
-
- gst_metadata_create_chunks_from_tags (filter);
-
- metadata_lazy_update (&filter->mux_data);
-
- strip_len = filter->mux_data.strip_chunks.len;
- inject_len = filter->mux_data.inject_chunks.len;
-
- bytes_striped = 0;
- bytes_inject = 0;
-
- /* calculate the new position off injected chunks */
- j = 0;
- for (i = 0; i < inject_len; ++i) {
- for (; j < strip_len; ++j) {
- if (strip[j].offset_orig >= inject[i].offset_orig) {
- break;
- }
- bytes_striped += strip[j].size;
- }
- inject[i].offset = inject[i].offset_orig - bytes_striped + bytes_inject;
- bytes_inject += inject[i].size;
- }
-
- /* calculate append (doesnt make much sense, but, anyway..) */
- append_size = 0;
- for (i = inject_len - 1; i >= 0; --i) {
- if (inject[i].offset_orig == filter->duration_orig)
- append_size += inject[i].size;
- else
- break;
- }
- if (append_size) {
- guint8 *data;
-
- filter->append_buffer = gst_buffer_new_and_alloc (append_size);
- GST_BUFFER_FLAG_SET (filter->append_buffer, GST_BUFFER_FLAG_READONLY);
- data = GST_BUFFER_DATA (filter->append_buffer);
- for (i = inject_len - 1; i >= 0; --i) {
- if (inject[i].offset_orig == filter->duration_orig) {
- memcpy (data, inject[i].data, inject[i].size);
- data += inject[i].size;
- } else {
- break;
- }
- }
- }
-
- if (filter->duration_orig) {
- filter->duration = filter->duration_orig;
- for (i = 0; i < inject_len; ++i) {
- filter->duration += inject[i].size;
- }
- for (i = 0; i < strip_len; ++i) {
- filter->duration -= strip[i].size;
- }
- }
-
- filter->need_calculate_offset = FALSE;
-
- return TRUE;
-
-}
-
-
/*
* Do parsing step-by-step and reconfigure caps if need
* return:
filter->next_offset = 0;
filter->next_size = 0;
- ret = metadata_parse (&filter->mux_data, buf, size,
+ ret = metadata_parse (&filter->common.metadata, buf, size,
&filter->next_offset, &filter->next_size);
if (ret == META_PARSING_ERROR) {
- if (META_DATA_IMG_TYPE (filter->mux_data) == IMG_NONE) {
+ if (META_DATA_IMG_TYPE (filter->common.metadata) == IMG_NONE) {
/* image type not recognized */
GST_ELEMENT_ERROR (filter, STREAM, TYPE_NOT_FOUND, (NULL),
("Only jpeg and png are supported"));
} else if (ret == META_PARSING_NEED_MORE_DATA) {
filter->need_more_data = TRUE;
} else {
- filter->state = MT_STATE_MUXED;
+ filter->common.state = MT_STATE_PARSED;
filter->need_more_data = FALSE;
filter->need_calculate_offset = TRUE;
}
- if (filter->img_type != META_DATA_IMG_TYPE (filter->mux_data)) {
- filter->img_type = META_DATA_IMG_TYPE (filter->mux_data);
+ /* reconfigure caps if it is different from type detected by 'metadata_mux' function */
+ if (filter->img_type != META_DATA_IMG_TYPE (filter->common.metadata)) {
+ filter->img_type = META_DATA_IMG_TYPE (filter->common.metadata);
if (!gst_metadata_mux_configure_caps (filter)) {
GST_ELEMENT_ERROR (filter, STREAM, FORMAT, (NULL),
("Couldn't reconfigure caps for %s",
- gst_metadata_mux_get_type_name (filter->img_type)));
+ gst_metadata_common_get_type_name (filter->img_type)));
ret = META_PARSING_ERROR;
goto done;
}
filter = GST_METADATA_MUX (gst_pad_get_parent (pad));
- if (filter->state != MT_STATE_MUXED) {
+ if (filter->common.state != MT_STATE_PARSED) {
guint32 adpt_size = gst_adapter_available (filter->adapter_parsing);
if (filter->next_offset) {
}
}
- if (filter->state == MT_STATE_MUXED) {
+ if (filter->common.state == MT_STATE_PARSED) {
if (filter->adapter_holding) {
gst_adapter_push (filter->adapter_holding, buf);
}
if (filter->need_calculate_offset) {
- if (!gst_metadata_mux_calculate_offsets (filter)) {
+ gst_metadata_create_chunks_from_tags (filter);
+ if (gst_metadata_common_calculate_offsets (&filter->common)) {
+ filter->need_calculate_offset = FALSE;
+ } else {
ret = GST_FLOW_ERROR;
goto done;
}
}
- if (filter->offset_orig + GST_BUFFER_SIZE (buf) == filter->duration_orig)
+ if (filter->offset_orig + GST_BUFFER_SIZE (buf) ==
+ filter->common.duration_orig)
append = TRUE;
buf_size = GST_BUFFER_SIZE (buf);
- gst_metadata_mux_strip_push_buffer (filter, filter->offset_orig,
+ gst_metadata_common_strip_push_buffer (&filter->common, filter->offset_orig,
&filter->prepend_buffer, &buf);
if (buf) { /* may be all buffer has been striped */
ret = GST_FLOW_OK;
}
- if (append && filter->append_buffer) {
- gst_buffer_set_caps (filter->append_buffer,
+ if (append && filter->common.append_buffer) {
+ gst_buffer_set_caps (filter->common.append_buffer,
GST_PAD_CAPS (filter->srcpad));
- gst_buffer_ref (filter->append_buffer);
- ret = gst_pad_push (filter->srcpad, filter->append_buffer);
+ gst_buffer_ref (filter->common.append_buffer);
+ ret = gst_pad_push (filter->srcpad, filter->common.append_buffer);
if (ret != GST_FLOW_OK)
goto done;
}
ret = TRUE;
goto done;
}
- filter->duration_orig = duration;
+ filter->common.duration_orig = duration;
if (format != GST_FORMAT_BYTES) {
/* this should never happen, but try chain anyway */
} while (res == META_PARSING_NEED_MORE_DATA);
-
done:
return ret;
}
/* try to mux */
- if (filter->state == MT_STATE_NULL) {
+ if (filter->common.state == MT_STATE_NULL) {
ret = gst_metadata_mux_pull_range_mux (filter);
}
}
-/*
- * offset - offset of buffer in original stream
- * size - size of buffer
- * seg_offset - offset of segment in original stream
- * seg_size - size of segment
- * boffset - offset inside buffer where segment starts (-1 for no intersection)
- * bsize - size of intersection
- * seg_binter - if segment start inside buffer is zero. if segment start before
- * buffer and intersect, it is the offset inside segment.
- *
- * ret:
- * -1 - segment before buffer
- * 0 - segment intersects
- * 1 - segment after buffer
- */
-
-static int
-gst_metadata_mux_get_strip_seg (const gint64 offset, guint32 size,
- const gint64 seg_offset, const guint32 seg_size,
- gint64 * boffset, guint32 * bsize, guint32 * seg_binter)
-{
- int ret = -1;
-
- *boffset = -1;
- *bsize = 0;
- *seg_binter = -1;
-
- /* all segment after buffer */
- if (seg_offset >= offset + size) {
- ret = 1;
- goto done;
- }
-
- if (seg_offset < offset) {
- /* segment start somewhere before buffer */
-
- /* all segment before buffer */
- if (seg_offset + seg_size <= offset) {
- ret = -1;
- goto done;
- }
-
- *seg_binter = offset - seg_offset;
- *boffset = 0;
-
- /* FIXME : optimize to >= size -> = size */
- if (seg_offset + seg_size >= offset + size) {
- /* segment cover all buffer */
- *bsize = size;
- } else {
- /* segment goes from start of buffer to somewhere before end */
- *bsize = seg_size - *seg_binter;
- }
-
- ret = 0;
-
- } else {
- /* segment start somewhere into buffer */
-
- *boffset = seg_offset - offset;
- *seg_binter = 0;
-
- if (seg_offset + seg_size <= offset + size) {
- /* all segment into buffer */
- *bsize = seg_size;
- } else {
- *bsize = size - *boffset;
- }
-
- ret = 0;
-
- }
-
-done:
-
- return ret;
-
-}
-
-/*
- * TRUE -> buffer striped or injeted
- * FALSE -> buffer unmodified
- */
-
-static gboolean
-gst_metadata_mux_strip_push_buffer (GstMetadataMux * filter,
- gint64 offset_orig, GstBuffer ** prepend, GstBuffer ** buf)
-{
- MetadataChunk *strip = filter->mux_data.strip_chunks.chunk;
- MetadataChunk *inject = filter->mux_data.inject_chunks.chunk;
- const gsize strip_len = filter->mux_data.strip_chunks.len;
- const gsize inject_len = filter->mux_data.inject_chunks.len;
- gboolean buffer_reallocated = FALSE;
-
- guint32 size_buf_in = GST_BUFFER_SIZE (*buf);
-
- gint64 *boffset_strip = NULL;
- guint32 *bsize_strip = NULL;
- guint32 *seg_binter_strip = NULL;
-
- int i, j;
- gboolean need_free_strip = FALSE;
-
- guint32 striped_bytes = 0;
- guint32 injected_bytes = 0;
-
- guint32 prepend_size = prepend && *prepend ? GST_BUFFER_SIZE (*prepend) : 0;
-
- if (inject_len) {
-
- for (i = 0; i < inject_len; ++i) {
- int res;
-
- if (inject[i].offset_orig >= offset_orig) {
- if (inject[i].offset_orig < offset_orig + size_buf_in) {
- injected_bytes += inject[i].size;
- } else {
- /* segment is after size (segments are sorted) */
- break;
- }
- }
- }
-
- }
-
- /*
- * strip segments
- */
-
- if (strip_len == 0)
- goto inject;
-
- if (G_UNLIKELY (strip_len > 16)) {
- boffset_strip = g_new (gint64, strip_len);
- bsize_strip = g_new (guint32, strip_len);
- seg_binter_strip = g_new (guint32, strip_len);
- need_free_strip = TRUE;
- } else {
- boffset_strip = g_alloca (sizeof (boffset_strip[0]) * strip_len);
- bsize_strip = g_alloca (sizeof (bsize_strip[0]) * strip_len);
- seg_binter_strip = g_alloca (sizeof (seg_binter_strip[0]) * strip_len);
- }
-
- memset (bsize_strip, 0x00, sizeof (bsize_strip[0]) * strip_len);
-
- for (i = 0; i < strip_len; ++i) {
- int res;
-
- res = gst_metadata_mux_get_strip_seg (offset_orig, size_buf_in,
- strip[i].offset_orig, strip[i].size, &boffset_strip[i], &bsize_strip[i],
- &seg_binter_strip[i]);
-
- /* segment is after size (segments are sorted) */
- striped_bytes += bsize_strip[i];
- if (res > 0) {
- break;
- }
-
- }
-
- if (striped_bytes) {
-
- guint8 *data;
-
- if (!buffer_reallocated) {
- buffer_reallocated = TRUE;
- if (injected_bytes + prepend_size > striped_bytes) {
- GstBuffer *new_buf =
- gst_buffer_new_and_alloc (GST_BUFFER_SIZE (*buf) + injected_bytes +
- prepend_size - striped_bytes);
-
- memcpy (GST_BUFFER_DATA (new_buf), GST_BUFFER_DATA (*buf),
- GST_BUFFER_SIZE (*buf));
-
- gst_buffer_unref (*buf);
- *buf = new_buf;
-
- } else if (GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_FLAG_READONLY)) {
- GstBuffer *new_buf = gst_buffer_copy (*buf);
-
- gst_buffer_unref (*buf);
- *buf = new_buf;
- GST_BUFFER_FLAG_UNSET (*buf, GST_BUFFER_FLAG_READONLY);
- GST_BUFFER_SIZE (*buf) += injected_bytes + prepend_size - striped_bytes;
- }
- }
-
- data = GST_BUFFER_DATA (*buf);
-
- striped_bytes = 0;
- for (i = 0; i < strip_len; ++i) {
- /* intersect */
- if (bsize_strip[i]) {
- memmove (data + boffset_strip[i] - striped_bytes,
- data + boffset_strip[i] + bsize_strip[i] - striped_bytes,
- size_buf_in - boffset_strip[i] - bsize_strip[i]);
- striped_bytes += bsize_strip[i];
- }
- }
- size_buf_in -= striped_bytes;
-
- }
-
-inject:
-
- /*
- * inject segments
- */
-
- if (inject_len) {
-
- guint8 *data;
- guint32 striped_so_far;
-
- if (!buffer_reallocated) {
- buffer_reallocated = TRUE;
- if (injected_bytes + prepend_size > striped_bytes) {
- GstBuffer *new_buf =
- gst_buffer_new_and_alloc (GST_BUFFER_SIZE (*buf) + injected_bytes +
- prepend_size - striped_bytes);
-
- memcpy (GST_BUFFER_DATA (new_buf), GST_BUFFER_DATA (*buf),
- GST_BUFFER_SIZE (*buf));
-
- gst_buffer_unref (*buf);
- *buf = new_buf;
-
- } else if (GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_FLAG_READONLY)) {
- GstBuffer *new_buf = gst_buffer_copy (*buf);
-
- gst_buffer_unref (*buf);
- *buf = new_buf;
- GST_BUFFER_FLAG_UNSET (*buf, GST_BUFFER_FLAG_READONLY);
- GST_BUFFER_SIZE (*buf) += injected_bytes + prepend_size - striped_bytes;
- }
- }
-
- data = GST_BUFFER_DATA (*buf);
-
- injected_bytes = 0;
- striped_so_far = 0;
- j = 0;
- for (i = 0; i < inject_len; ++i) {
- int res;
-
- while (j < strip_len) {
- if (strip[j].offset_orig < inject[i].offset_orig)
- striped_so_far += bsize_strip[j++];
- else
- break;
- }
-
- if (inject[i].offset_orig >= offset_orig) {
- if (inject[i].offset_orig <
- offset_orig + size_buf_in + striped_bytes - injected_bytes) {
- /* insert */
- guint32 buf_off =
- inject[i].offset_orig - offset_orig - striped_so_far +
- injected_bytes;
- memmove (data + buf_off + inject[i].size, data + buf_off,
- size_buf_in - buf_off);
- memcpy (data + buf_off, inject[i].data, inject[i].size);
- injected_bytes += inject[i].size;
- size_buf_in += inject[i].size;
- } else {
- /* segment is after size (segments are sorted) */
- break;
- }
- }
- }
-
- }
-
-
-done:
-
- if (prepend_size) {
- if (injected_bytes == 0 && striped_bytes == 0) {
- GstBuffer *new_buf =
- gst_buffer_new_and_alloc (size_buf_in + prepend_size);
-
- memcpy (GST_BUFFER_DATA (new_buf) + prepend_size, GST_BUFFER_DATA (*buf),
- size_buf_in);
-
- gst_buffer_unref (*buf);
- *buf = new_buf;
- } else {
- memmove (GST_BUFFER_DATA (*buf) + prepend_size, GST_BUFFER_DATA (*buf),
- size_buf_in);
- }
- memcpy (GST_BUFFER_DATA (*buf), GST_BUFFER_DATA (*prepend), prepend_size);
- gst_buffer_unref (*prepend);
- *prepend = NULL;
- }
-
- GST_BUFFER_SIZE (*buf) = size_buf_in + prepend_size;
-
- if (need_free_strip) {
- g_free (boffset_strip);
- g_free (bsize_strip);
- g_free (seg_binter_strip);
- }
-
- return injected_bytes || striped_bytes;
-
-}
-
-/*
- * pos - position in stream striped
- * orig_pos - position in original stream
- * return TRUE - position in original buffer
- * FALSE - position in inserted chunk
- */
-static gboolean
-gst_metadata_mux_translate_pos_to_orig (GstMetadataMux * filter, gint64 pos,
- gint64 * orig_pos, GstBuffer ** buf)
-{
- int i;
- MetadataChunk *strip = filter->mux_data.strip_chunks.chunk;
- MetadataChunk *inject = filter->mux_data.inject_chunks.chunk;
- const gsize strip_len = filter->mux_data.strip_chunks.len;
- const gsize inject_len = filter->mux_data.inject_chunks.len;
- gboolean ret = TRUE;
- guint64 new_buf_size = 0;
- guint64 injected_before = 0;
-
- if (G_UNLIKELY (pos == -1)) {
- *orig_pos = -1;
- return TRUE;
- } else if (G_UNLIKELY (pos >= filter->duration)) {
- /* this should never happen */
- *orig_pos = filter->duration_orig;
- return TRUE;
- }
-
- /* calculate for injected */
-
- /* just calculate size */
- *orig_pos = pos; /* save pos */
- for (i = 0; i < inject_len; ++i) {
- /* check if pos in inside chunk */
- if (inject[i].offset <= pos) {
- if (pos < inject[i].offset + inject[i].size) {
- /* orig pos points after insert chunk */
- new_buf_size += inject[i].size;
- /* put pos after current chunk */
- pos = inject[i].offset + inject[i].size;
- ret = FALSE;
- } else {
- /* in case pos is not inside a injected chunk */
- injected_before += inject[i].size;
- }
- } else {
- break;
- }
- }
-
- /* alloc buffer and calcute original pos */
- if (buf && ret == FALSE) {
- guint8 *data;
-
- if (*buf)
- gst_buffer_unref (*buf);
- *buf = gst_buffer_new_and_alloc (new_buf_size);
- data = GST_BUFFER_DATA (*buf);
- pos = *orig_pos; /* recover saved pos */
- for (i = 0; i < inject_len; ++i) {
- if (inject[i].offset > pos) {
- break;
- }
- if (inject[i].offset <= pos && pos < inject[i].offset + inject[i].size) {
- memcpy (data, inject[i].data, inject[i].size);
- data += inject[i].size;
- pos = inject[i].offset + inject[i].size;
- /* out position after insert chunk orig */
- *orig_pos = inject[i].offset_orig + inject[i].size;
- }
- }
- }
-
- if (ret == FALSE) {
- /* if it inside a injected is already done */
- goto done;
- }
-
- /* calculate for striped */
-
- *orig_pos = pos - injected_before;
- for (i = 0; i < strip_len; ++i) {
- if (strip[i].offset_orig > pos) {
- break;
- }
- *orig_pos += strip[i].size;
- }
-
-done:
-
- if (G_UNLIKELY (*orig_pos >= filter->duration_orig)) {
- *orig_pos = filter->duration_orig - 1;
- }
-
- return ret;
-
-}
-
static gboolean
gst_metadata_mux_checkgetrange (GstPad * srcpad)
{
filter = GST_METADATA_MUX (GST_PAD_PARENT (pad));
if (filter->need_calculate_offset) {
- if (!gst_metadata_mux_calculate_offsets (filter)) {
+ gst_metadata_create_chunks_from_tags (filter);
+ if (gst_metadata_common_calculate_offsets (&filter->common)) {
+ filter->need_calculate_offset = FALSE;
+ } else {
ret = GST_FLOW_ERROR;
goto done;
}
}
- if (offset + size > filter->duration) {
- size = filter->duration - offset;
+ if (offset + size > filter->common.duration) {
+ size = filter->common.duration - offset;
}
size_orig = size;
- gst_metadata_mux_translate_pos_to_orig (filter, offset, &offset_orig,
- &prepend);
+ gst_metadata_common_translate_pos_to_orig (&filter->common, offset,
+ &offset_orig, &prepend);
if (size > 1) {
gint64 pos;
pos = offset + size - 1;
- gst_metadata_mux_translate_pos_to_orig (filter, pos, &pos, NULL);
+ gst_metadata_common_translate_pos_to_orig (&filter->common, pos, &pos,
+ NULL);
size_orig = pos + 1 - offset_orig;
}
ret = gst_pad_pull_range (filter->sinkpad, offset_orig, size_orig, buf);
if (ret == GST_FLOW_OK && *buf) {
- gst_metadata_mux_strip_push_buffer (filter, offset_orig, &prepend, buf);
+ gst_metadata_common_strip_push_buffer (&filter->common, offset_orig,
+ &prepend, buf);
if (GST_BUFFER_SIZE (*buf) < size) {
/* need append */
if (need_append) {
/* FIXME: together with SEEK and
- * gst_metadata_parse_translate_pos_to_orig
+ * gst_metadata_common_translate_pos_to_orig
* this way if chunk is added in the end we are in trolble
* ...still not implemented 'cause it will not be the
* case for the time being
ret = gst_pad_activate_pull (filter->sinkpad, active);
- if (ret && filter->state == MT_STATE_NULL) {
+ if (ret && filter->common.state == MT_STATE_NULL) {
ret = gst_metadata_mux_pull_range_mux (filter);
}
case GST_STATE_CHANGE_NULL_TO_READY:
gst_metadata_mux_init_members (filter);
filter->adapter_parsing = gst_adapter_new ();
- metadata_init (&filter->mux_data, FALSE, filter->options);
+ gst_metadata_common_init (&filter->common, FALSE, filter->options);
break;
default:
break;
if (filter->adapter_holding) {
gst_adapter_clear (filter->adapter_holding);
}
- if (filter->state != MT_STATE_MUXED) {
+ if (filter->common.state != MT_STATE_PARSED) {
/* cleanup parser */
- /* FIXME: could be improved a bit to avoid mem allocation */
- metadata_dispose (&filter->mux_data);
- metadata_init (&filter->mux_data, FALSE, filter->options);
+ gst_metadata_common_dispose (&filter->common);
+ gst_metadata_common_init (&filter->common, FALSE, filter->options);
}
break;
case GST_STATE_CHANGE_READY_TO_NULL:
#include <gst/gst.h>
-#include "metadata.h"
+#include "gstmetadatacommon.h"
G_BEGIN_DECLS
/* #defines don't like whitespacey bits */
typedef struct _GstMetadataMux GstMetadataMux;
typedef struct _GstMetadataMuxClass GstMetadataMuxClass;
-typedef enum _tag_MetadataState
-{
- MT_STATE_NULL, /* still need to check media type */
- MT_STATE_MUXED
-} MetadataState;
-
struct _GstMetadataMux
{
GstElement element;
GstPad *sinkpad, *srcpad;
+ GstMetadataCommon common;
+
guint8 options;
- MetaData mux_data;
GstAdapter *adapter_parsing;
GstAdapter *adapter_holding;
guint32 next_offset;
ImageType img_type;
gint64 offset_orig; /* offset in original stream */
- gint64 duration_orig; /* durarion of stream */
gint64 offset; /* offset in current stream */
- gint64 duration; /* durarion of modified stream */
-
- MetadataState state;
GstBuffer * prepend_buffer;
- GstBuffer * append_buffer;
gboolean need_more_data;
+++ /dev/null
-/*
- * GStreamer
- * Copyright 2007 Edgard Lima <edgard.lima@indt.org.br>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- *
- * Alternatively, the contents of this file may be used under the
- * GNU Lesser General Public License Version 2.1 (the "LGPL"), in
- * which case the following provisions apply instead of the ones
- * mentioned above:
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-/**
- * SECTION:metadataparse-metadata
- *
- * <refsect2>
- * <title>Example launch line</title>
- * <para>
- * <programlisting>
- * gst-launch -v -m filesrc location=./test.jpeg ! metadataparse ! fakesink silent=TRUE
- * </programlisting>
- * </para>
- * </refsect2>
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <gst/gst.h>
-
-#include "gstmetadataparse.h"
-
-#include "metadataexif.h"
-
-#include "metadataiptc.h"
-
-#include "metadataxmp.h"
-
-#include <string.h>
-
-GST_DEBUG_CATEGORY_STATIC (gst_metadata_parse_debug);
-#define GST_CAT_DEFAULT gst_metadata_parse_debug
-
-#define GOTO_DONE_IF_NULL(ptr) do { if ( NULL == (ptr) ) goto done; } while(FALSE)
-#define GOTO_DONE_IF_NULL_AND_FAIL(ptr, ret) do { if ( NULL == (ptr) ) { (ret) = FALSE; goto done; } } while(FALSE)
-
-/* Filter signals and args */
-enum
-{
- /* FILL ME */
- LAST_SIGNAL
-};
-
-enum
-{
- ARG_0,
- ARG_EXIF,
- ARG_IPTC,
- ARG_XMP
-};
-
-static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
- GST_PAD_SINK,
- GST_PAD_ALWAYS,
- GST_STATIC_CAPS ("image/jpeg, "
- "tags-extracted = (bool) false;"
- "image/png, " "tags-extracted = (bool) false")
- );
-
-static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
- GST_PAD_SRC,
- GST_PAD_ALWAYS,
- GST_STATIC_CAPS ("image/jpeg, "
- "tags-extracted = (bool) true;"
- "image/png, " "tags-extracted = (bool) true")
- );
-
-GST_BOILERPLATE (GstMetadataParse, gst_metadata_parse, GstElement,
- GST_TYPE_ELEMENT);
-
-static GstMetadataParseClass *metadata_parent_class = NULL;
-
-static void gst_metadata_parse_dispose (GObject * object);
-
-static void gst_metadata_parse_finalize (GObject * object);
-
-static void gst_metadata_parse_set_property (GObject * object, guint prop_id,
- const GValue * value, GParamSpec * pspec);
-static void gst_metadata_parse_get_property (GObject * object, guint prop_id,
- GValue * value, GParamSpec * pspec);
-
-static GstStateChangeReturn
-gst_metadata_parse_change_state (GstElement * element,
- GstStateChange transition);
-
-static GstCaps *gst_metadata_parse_get_caps (GstPad * pad);
-static gboolean gst_metadata_parse_set_caps (GstPad * pad, GstCaps * caps);
-static gboolean gst_metadata_parse_src_event (GstPad * pad, GstEvent * event);
-static gboolean gst_metadata_parse_sink_event (GstPad * pad, GstEvent * event);
-
-static GstFlowReturn gst_metadata_parse_chain (GstPad * pad, GstBuffer * buf);
-
-static gboolean gst_metadata_parse_checkgetrange (GstPad * srcpad);
-
-static GstFlowReturn
-gst_metadata_parse_get_range (GstPad * pad, guint64 offset_orig, guint size,
- GstBuffer ** buf);
-
-static gboolean gst_metadata_parse_sink_activate (GstPad * pad);
-
-static gboolean
-gst_metadata_parse_src_activate_pull (GstPad * pad, gboolean active);
-
-static gboolean gst_metadata_parse_pull_range_parse (GstMetadataParse * filter);
-
-static void gst_metadata_parse_init_members (GstMetadataParse * filter);
-static void gst_metadata_parse_dispose_members (GstMetadataParse * filter);
-
-static gboolean
-gst_metadata_parse_configure_srccaps (GstMetadataParse * filter);
-static gboolean gst_metadata_parse_configure_caps (GstMetadataParse * filter);
-
-static int
-gst_metadata_parse_parse (GstMetadataParse * filter, const guint8 * buf,
- guint32 size);
-
-static void gst_metadata_parse_send_tags (GstMetadataParse * filter);
-
-
-
-static int
-gst_metadata_parse_get_strip_seg (const gint64 offset, guint32 size,
- const gint64 seg_offset, const guint32 seg_size,
- gint64 * boffset, guint32 * bsize, guint32 * seg_binter);
-
-static gboolean
-gst_metadata_parse_strip_push_buffer (GstMetadataParse * filter,
- gint64 offset_orig, GstBuffer ** prepend, GstBuffer ** buf);
-
-static gboolean
-gst_metadata_parse_translate_pos_to_orig (GstMetadataParse * filter, gint64 pos,
- gint64 * orig_pos, GstBuffer ** buf);
-
-static const GstQueryType *gst_metadata_parse_get_query_types (GstPad * pad);
-
-static gboolean gst_metadata_parse_src_query (GstPad * pad, GstQuery * query);
-
-static void
-gst_metadata_parse_base_init (gpointer gclass)
-{
- static GstElementDetails element_details = {
- "Metadata parser",
- "Parser/Extracter/Metadata",
- "Send metadata tags (EXIF, IPTC and XMP) while passing throught the contents",
- "Edgard Lima <edgard.lima@indt.org.br>"
- };
- GstElementClass *element_class = GST_ELEMENT_CLASS (gclass);
-
- gst_element_class_add_pad_template (element_class,
- gst_static_pad_template_get (&src_factory));
- gst_element_class_add_pad_template (element_class,
- gst_static_pad_template_get (&sink_factory));
- gst_element_class_set_details (element_class, &element_details);
-}
-
-/* initialize the plugin's class */
-static void
-gst_metadata_parse_class_init (GstMetadataParseClass * klass)
-{
- GObjectClass *gobject_class;
- GstElementClass *gstelement_class;
-
- gobject_class = (GObjectClass *) klass;
- gstelement_class = (GstElementClass *) klass;
-
- metadata_parent_class = g_type_class_peek_parent (klass);
-
- gobject_class->dispose = GST_DEBUG_FUNCPTR (gst_metadata_parse_dispose);
- gobject_class->finalize = GST_DEBUG_FUNCPTR (gst_metadata_parse_finalize);
-
- gobject_class->set_property = gst_metadata_parse_set_property;
- gobject_class->get_property = gst_metadata_parse_get_property;
-
- g_object_class_install_property (gobject_class, ARG_EXIF,
- g_param_spec_boolean ("exif", "EXIF", "Send EXIF metadata ?",
- TRUE, G_PARAM_READWRITE));
-
- g_object_class_install_property (gobject_class, ARG_IPTC,
- g_param_spec_boolean ("iptc", "IPTC", "Send IPTC metadata ?",
- TRUE, G_PARAM_READWRITE));
-
- g_object_class_install_property (gobject_class, ARG_XMP,
- g_param_spec_boolean ("xmp", "XMP", "Send XMP metadata ?",
- TRUE, G_PARAM_READWRITE));
-
- gstelement_class->change_state = gst_metadata_parse_change_state;
-
-}
-
-/* initialize the new element
- * instantiate pads and add them to element
- * set functions
- * initialize structure
- */
-static void
-gst_metadata_parse_init (GstMetadataParse * filter,
- GstMetadataParseClass * gclass)
-{
- GstElementClass *klass = GST_ELEMENT_GET_CLASS (filter);
-
- /* sink pad */
-
- filter->sinkpad =
- gst_pad_new_from_template (gst_element_class_get_pad_template (klass,
- "sink"), "sink");
- gst_pad_set_setcaps_function (filter->sinkpad,
- GST_DEBUG_FUNCPTR (gst_metadata_parse_set_caps));
- gst_pad_set_getcaps_function (filter->sinkpad,
- GST_DEBUG_FUNCPTR (gst_metadata_parse_get_caps));
- gst_pad_set_event_function (filter->sinkpad, gst_metadata_parse_sink_event);
- gst_pad_set_chain_function (filter->sinkpad,
- GST_DEBUG_FUNCPTR (gst_metadata_parse_chain));
- gst_pad_set_activate_function (filter->sinkpad,
- gst_metadata_parse_sink_activate);
-
- /* source pad */
-
- filter->srcpad =
- gst_pad_new_from_template (gst_element_class_get_pad_template (klass,
- "src"), "src");
- gst_pad_set_getcaps_function (filter->srcpad,
- GST_DEBUG_FUNCPTR (gst_metadata_parse_get_caps));
- gst_pad_set_event_function (filter->srcpad, gst_metadata_parse_src_event);
- gst_pad_set_query_function (filter->srcpad,
- GST_DEBUG_FUNCPTR (gst_metadata_parse_src_query));
- gst_pad_set_query_type_function (filter->srcpad,
- GST_DEBUG_FUNCPTR (gst_metadata_parse_get_query_types));
- gst_pad_use_fixed_caps (filter->srcpad);
-
- gst_pad_set_checkgetrange_function (filter->srcpad,
- GST_DEBUG_FUNCPTR (gst_metadata_parse_checkgetrange));
- gst_pad_set_getrange_function (filter->srcpad, gst_metadata_parse_get_range);
-
- gst_pad_set_activatepull_function (filter->srcpad,
- GST_DEBUG_FUNCPTR (gst_metadata_parse_src_activate_pull));
- /* addind pads */
-
- gst_element_add_pad (GST_ELEMENT (filter), filter->sinkpad);
- gst_element_add_pad (GST_ELEMENT (filter), filter->srcpad);
-
- metadataparse_xmp_init ();
- /* init members */
-
- filter->options = META_OPT_EXIF | META_OPT_IPTC | META_OPT_XMP;
-
- gst_metadata_parse_init_members (filter);
-
-}
-
-static void
-gst_metadata_parse_set_property (GObject * object, guint prop_id,
- const GValue * value, GParamSpec * pspec)
-{
- GstMetadataParse *filter = GST_METADATA_PARSE (object);
-
- switch (prop_id) {
- case ARG_EXIF:
- if (g_value_get_boolean (value))
- filter->options |= META_OPT_EXIF;
- else
- filter->options &= ~META_OPT_EXIF;
- break;
- case ARG_IPTC:
- if (g_value_get_boolean (value))
- filter->options |= META_OPT_IPTC;
- else
- filter->options &= ~META_OPT_IPTC;
- break;
- case ARG_XMP:
- if (g_value_get_boolean (value))
- filter->options |= META_OPT_XMP;
- else
- filter->options &= ~META_OPT_XMP;
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-}
-
-static void
-gst_metadata_parse_get_property (GObject * object, guint prop_id,
- GValue * value, GParamSpec * pspec)
-{
- GstMetadataParse *filter = GST_METADATA_PARSE (object);
-
- switch (prop_id) {
- case ARG_EXIF:
- g_value_set_boolean (value, filter->options & META_OPT_EXIF);
- break;
- case ARG_IPTC:
- g_value_set_boolean (value, filter->options & META_OPT_IPTC);
- break;
- case ARG_XMP:
- g_value_set_boolean (value, filter->options & META_OPT_XMP);
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-}
-
-/* GstElement vmethod implementations */
-
-static GstCaps *
-gst_metadata_parse_get_caps (GstPad * pad)
-{
- GstMetadataParse *filter = NULL;
- GstPad *otherpad;
- GstCaps *caps_new = NULL;
- GstCaps *caps_otherpad_peer = NULL;
-
- filter = GST_METADATA_PARSE (gst_pad_get_parent (pad));
-
- (filter->srcpad == pad) ? (otherpad = filter->sinkpad) : (otherpad =
- filter->srcpad);
-
- caps_new = gst_caps_copy (gst_pad_get_pad_template_caps (pad));
-
- caps_otherpad_peer = gst_pad_get_allowed_caps (otherpad);
- GOTO_DONE_IF_NULL (caps_otherpad_peer);
-
- if (gst_caps_is_empty (caps_otherpad_peer)
- || gst_caps_is_any (caps_otherpad_peer)) {
- goto done;
- } else {
-
- guint i;
- guint caps_size = 0;
-
- caps_size = gst_caps_get_size (caps_otherpad_peer);
-
- gst_caps_unref (caps_new);
-
- caps_new = gst_caps_new_empty ();
-
- for (i = 0; i < caps_size; ++i) {
- GstStructure *structure = NULL;
- GstStructure *structure_new = NULL;
- const gchar *mime = NULL;
-
- structure = gst_caps_get_structure (caps_otherpad_peer, i);
-
- mime = gst_structure_get_name (structure);
-
- if (pad == filter->sinkpad) {
- structure_new =
- gst_structure_new (mime, "tags-extracted", G_TYPE_BOOLEAN, FALSE,
- NULL);
- } else {
- structure_new =
- gst_structure_new (mime, "tags-extracted", G_TYPE_BOOLEAN, TRUE,
- NULL);
- }
-
- gst_caps_append_structure (caps_new, structure_new);
-
- }
-
- }
-
-done:
-
- if (caps_otherpad_peer) {
- gst_caps_unref (caps_otherpad_peer);
- caps_otherpad_peer = NULL;
- }
-
- gst_object_unref (filter);
-
- return caps_new;
-
-}
-
-static gboolean
-gst_metadata_parse_src_event (GstPad * pad, GstEvent * event)
-{
- GstMetadataParse *filter = NULL;
- gboolean ret = FALSE;
-
- filter = GST_METADATA_PARSE (gst_pad_get_parent (pad));
-
- switch (GST_EVENT_TYPE (event)) {
- case GST_EVENT_SEEK:
- {
- gdouble rate;
- GstFormat format;
- GstSeekFlags flags;
- GstSeekType start_type;
- gint64 start;
- GstSeekType stop_type;
- gint64 stop;
-
- /* we don't know where are the chunks to be stripped before parse */
- if (filter->state != MT_STATE_PARSED)
- goto done;
-
- gst_event_parse_seek (event, &rate, &format, &flags,
- &start_type, &start, &stop_type, &stop);
-
- switch (format) {
- case GST_FORMAT_BYTES:
- break;
- case GST_FORMAT_PERCENT:
- if (filter->duration < 0)
- goto done;
- start = start * filter->duration / 100;
- stop = stop * filter->duration / 100;
- break;
- default:
- goto done;
- }
- format = GST_FORMAT_BYTES;
-
- if (start_type == GST_SEEK_TYPE_CUR)
- start = filter->offset + start;
- else if (start_type == GST_SEEK_TYPE_END) {
- if (filter->duration < 0)
- goto done;
- start = filter->duration + start;
- }
- start_type == GST_SEEK_TYPE_SET;
-
- if (filter->prepend_buffer) {
- gst_buffer_unref (filter->prepend_buffer);
- filter->prepend_buffer = NULL;
- }
-
- /* FIXME: related to append */
- filter->offset = start;
- gst_metadata_parse_translate_pos_to_orig (filter, start, &start,
- &filter->prepend_buffer);
- filter->offset_orig = start;
-
- if (stop_type == GST_SEEK_TYPE_CUR)
- stop = filter->offset + stop;
- else if (stop_type == GST_SEEK_TYPE_END) {
- if (filter->duration < 0)
- goto done;
- stop = filter->duration + stop;
- }
- stop_type == GST_SEEK_TYPE_SET;
-
- gst_metadata_parse_translate_pos_to_orig (filter, stop, &stop, NULL);
-
- gst_event_unref (event);
- event = gst_event_new_seek (rate, format, flags,
- start_type, start, stop_type, stop);
-
- }
- break;
- default:
- break;
- }
-
- ret = gst_pad_event_default (pad, event);
- event = NULL; /* event has another owner */
-
-done:
-
- if (event) {
- gst_event_unref (event);
- }
-
- gst_object_unref (filter);
-
- return ret;
-
-}
-
-static gboolean
-gst_metadata_parse_sink_event (GstPad * pad, GstEvent * event)
-{
- GstMetadataParse *filter = NULL;
- gboolean ret = FALSE;
-
- filter = GST_METADATA_PARSE (gst_pad_get_parent (pad));
-
- switch (GST_EVENT_TYPE (event)) {
- case GST_EVENT_EOS:
- if (filter->need_more_data) {
- GST_ELEMENT_WARNING (filter, STREAM, DEMUX, (NULL),
- ("Need more data. Unexpected EOS"));
- }
- break;
- case GST_EVENT_TAG:
- break;
- default:
- break;
- }
-
- ret = gst_pad_event_default (pad, event);
-
- gst_object_unref (filter);
-
- return ret;
-
-}
-
-static void
-gst_metadata_parse_dispose (GObject * object)
-{
- GstMetadataParse *filter = NULL;
-
- filter = GST_METADATA_PARSE (object);
-
- gst_metadata_parse_dispose_members (filter);
-
- metadataparse_xmp_dispose ();
-
- G_OBJECT_CLASS (metadata_parent_class)->dispose (object);
-
-}
-
-static void
-gst_metadata_parse_finalize (GObject * object)
-{
- G_OBJECT_CLASS (metadata_parent_class)->finalize (object);
-}
-
-static void
-gst_metadata_parse_dispose_members (GstMetadataParse * filter)
-{
- metadata_dispose (&filter->parse_data);
-
- if (filter->adapter_parsing) {
- gst_object_unref (filter->adapter_parsing);
- filter->adapter_parsing = NULL;
- }
-
- if (filter->adapter_holding) {
- gst_object_unref (filter->adapter_holding);
- filter->adapter_holding = NULL;
- }
-
- if (filter->append_buffer) {
- gst_buffer_unref (filter->append_buffer);
- filter->append_buffer = NULL;
- }
-
- if (filter->prepend_buffer) {
- gst_buffer_unref (filter->prepend_buffer);
- filter->prepend_buffer = NULL;
- }
-}
-
-static void
-gst_metadata_parse_init_members (GstMetadataParse * filter)
-{
- filter->need_send_tag = FALSE;
-
- filter->adapter_parsing = NULL;
- filter->adapter_holding = NULL;
- filter->next_offset = 0;
- filter->next_size = 0;
- filter->img_type = IMG_NONE;
- filter->offset_orig = 0;
- filter->duration_orig = 0;
- filter->offset = 0;
- filter->duration = 0;
- filter->state = MT_STATE_NULL;
- filter->need_more_data = FALSE;
-
- filter->append_buffer = NULL;
- filter->prepend_buffer = NULL;
-
- memset (&filter->parse_data, 0x00, sizeof (MetaData));
-
-}
-
-static gboolean
-gst_metadata_parse_configure_srccaps (GstMetadataParse * filter)
-{
- GstCaps *caps = NULL;
- gboolean ret = FALSE;
- gchar *mime = NULL;
-
- switch (filter->img_type) {
- case IMG_JPEG:
- mime = "image/jpeg";
- break;
- case IMG_PNG:
- mime = "image/png";
- break;
- default:
- ret = FALSE;
- goto done;
- break;
- }
-
- caps =
- gst_caps_new_simple (mime, "tags-extracted", G_TYPE_BOOLEAN, TRUE, NULL);
-
- ret = gst_pad_set_caps (filter->srcpad, caps);
-
-done:
-
- if (caps) {
- gst_caps_unref (caps);
- caps = NULL;
- }
-
- return ret;
-
-}
-
-static gboolean
-gst_metadata_parse_configure_caps (GstMetadataParse * filter)
-{
- GstCaps *caps = NULL;
- gboolean ret = FALSE;
- gchar *mime = NULL;
- GstPad *peer = NULL;
-
- peer = gst_pad_get_peer (filter->sinkpad);
-
- switch (filter->img_type) {
- case IMG_JPEG:
- mime = "image/jpeg";
- break;
- case IMG_PNG:
- mime = "image/png";
- break;
- default:
- goto done;
- break;
- }
-
- caps = gst_caps_new_simple (mime, NULL);
-
- if (!gst_pad_set_caps (peer, caps)) {
- goto done;
- }
-
- ret = gst_pad_set_caps (filter->sinkpad, caps);
-
-done:
-
- if (caps) {
- gst_caps_unref (caps);
- caps = NULL;
- }
-
- if (peer) {
- gst_object_unref (peer);
- peer = NULL;
- }
-
- return ret;
-
-}
-
-/* this function handles the link with other elements */
-static gboolean
-gst_metadata_parse_set_caps (GstPad * pad, GstCaps * caps)
-{
- GstMetadataParse *filter = NULL;
- GstStructure *structure = NULL;
- const gchar *mime = NULL;
- gboolean ret = FALSE;
- gboolean parsed = TRUE;
-
- filter = GST_METADATA_PARSE (gst_pad_get_parent (pad));
-
- structure = gst_caps_get_structure (caps, 0);
-
- mime = gst_structure_get_name (structure);
-
- if (strcmp (mime, "image/jpeg") == 0) {
- filter->img_type = IMG_JPEG;
- } else if (strcmp (mime, "image/png") == 0) {
- filter->img_type = IMG_PNG;
- } else {
- ret = FALSE;
- goto done;
- }
-
- if (gst_structure_get_boolean (structure, "tags-extracted", &parsed)) {
- if (parsed == TRUE) {
- ret = FALSE;
- goto done;
- }
- }
-
- ret = gst_metadata_parse_configure_srccaps (filter);
-
-done:
-
- gst_object_unref (filter);
-
- return ret;
-}
-
-static const gchar *
-gst_metadata_parse_get_type_name (int img_type)
-{
- gchar *type_name = NULL;
-
- switch (img_type) {
- case IMG_JPEG:
- type_name = "jpeg";
- break;
- case IMG_PNG:
- type_name = "png";
- break;
- default:
- type_name = "invalid type";
- break;
- }
- return type_name;
-}
-
-static void
-gst_metadata_parse_send_tags (GstMetadataParse * filter)
-{
-
- GstMessage *msg;
- GstTagList *taglist = gst_tag_list_new ();
- GstEvent *event;
-
- if (filter->options & META_OPT_EXIF)
- metadataparse_exif_tag_list_add (taglist, GST_TAG_MERGE_KEEP,
- filter->parse_data.exif_adapter, METADATA_TAG_MAP_WHOLECHUNK);
- if (filter->options & META_OPT_IPTC)
- metadataparse_iptc_tag_list_add (taglist, GST_TAG_MERGE_KEEP,
- filter->parse_data.iptc_adapter, METADATA_TAG_MAP_WHOLECHUNK);
- if (filter->options & META_OPT_XMP)
- metadataparse_xmp_tag_list_add (taglist, GST_TAG_MERGE_KEEP,
- filter->parse_data.xmp_adapter, METADATA_TAG_MAP_WHOLECHUNK);
-
- if (taglist && !gst_tag_list_is_empty (taglist)) {
-
- msg =
- gst_message_new_tag (GST_OBJECT (filter), gst_tag_list_copy (taglist));
- gst_element_post_message (GST_ELEMENT (filter), msg);
-
- event = gst_event_new_tag (taglist);
- gst_pad_push_event (filter->srcpad, event);
- taglist = NULL;
- }
-
- if (!taglist)
- taglist = gst_tag_list_new ();
-
- if (filter->options & META_OPT_EXIF)
- metadataparse_exif_tag_list_add (taglist, GST_TAG_MERGE_KEEP,
- filter->parse_data.exif_adapter, METADATA_TAG_MAP_INDIVIDUALS);
- if (filter->options & META_OPT_IPTC)
- metadataparse_iptc_tag_list_add (taglist, GST_TAG_MERGE_KEEP,
- filter->parse_data.iptc_adapter, METADATA_TAG_MAP_INDIVIDUALS);
- if (filter->options & META_OPT_XMP)
- metadataparse_xmp_tag_list_add (taglist, GST_TAG_MERGE_KEEP,
- filter->parse_data.xmp_adapter, METADATA_TAG_MAP_INDIVIDUALS);
-
- if (taglist && !gst_tag_list_is_empty (taglist)) {
-
- msg = gst_message_new_tag (GST_OBJECT (filter), taglist);
- gst_element_post_message (GST_ELEMENT (filter), msg);
- taglist = NULL;
- }
-
- if (taglist)
- gst_tag_list_free (taglist);
-
- filter->need_send_tag = FALSE;
-}
-
-static const GstQueryType *
-gst_metadata_parse_get_query_types (GstPad * pad)
-{
- static const GstQueryType gst_metadata_parse_src_query_types[] = {
- GST_QUERY_POSITION,
- GST_QUERY_DURATION,
- GST_QUERY_FORMATS,
- 0
- };
-
- return gst_metadata_parse_src_query_types;
-}
-
-static gboolean
-gst_metadata_parse_src_query (GstPad * pad, GstQuery * query)
-{
- gboolean ret = FALSE;
- GstFormat format;
- GstMetadataParse *filter = GST_METADATA_PARSE (gst_pad_get_parent (pad));
-
- switch (GST_QUERY_TYPE (query)) {
- case GST_QUERY_POSITION:
- gst_query_parse_position (query, &format, NULL);
-
- if (format == GST_FORMAT_BYTES) {
- gst_query_set_position (query, GST_FORMAT_BYTES, filter->offset);
- ret = TRUE;
- }
- break;
- case GST_QUERY_DURATION:
- if (filter->state != MT_STATE_PARSED)
- goto done;
-
- gst_query_parse_duration (query, &format, NULL);
-
- if (format == GST_FORMAT_BYTES) {
- if (filter->duration >= 0) {
- gst_query_set_duration (query, GST_FORMAT_BYTES, filter->duration);
- ret = TRUE;
- }
- }
- break;
- case GST_QUERY_FORMATS:
- gst_query_set_formats (query, 1, GST_FORMAT_BYTES);
- ret = TRUE;
- break;
- default:
- break;
- }
-
-done:
-
- gst_object_unref (filter);
-
- return ret;
-
-}
-
-static void
-gst_metadata_parse_calculate_offsets (GstMetadataParse * filter)
-{
- int i, j;
- guint32 append_size;
- guint32 bytes_striped, bytes_inject;
- MetadataChunk *strip = filter->parse_data.strip_chunks.chunk;
- MetadataChunk *inject = filter->parse_data.inject_chunks.chunk;
- const gsize strip_len = filter->parse_data.strip_chunks.len;
- const gsize inject_len = filter->parse_data.inject_chunks.len;
-
- bytes_striped = 0;
- bytes_inject = 0;
-
- /* calculate the new position off injected chunks */
- j = 0;
- for (i = 0; i < inject_len; ++i) {
- for (; j < strip_len; ++j) {
- if (strip[j].offset_orig >= inject[i].offset_orig) {
- break;
- }
- bytes_striped += strip[j].size;
- }
- inject[i].offset = inject[i].offset_orig - bytes_striped + bytes_inject;
- bytes_inject += inject[i].size;
- }
-
- /* calculate append (doesnt make much sense, but, anyway..) */
- append_size = 0;
- for (i = inject_len - 1; i >= 0; --i) {
- if (inject[i].offset_orig == filter->duration_orig)
- append_size += inject[i].size;
- else
- break;
- }
- if (append_size) {
- guint8 *data;
-
- filter->append_buffer = gst_buffer_new_and_alloc (append_size);
- GST_BUFFER_FLAG_SET (filter->append_buffer, GST_BUFFER_FLAG_READONLY);
- data = GST_BUFFER_DATA (filter->append_buffer);
- for (i = inject_len - 1; i >= 0; --i) {
- if (inject[i].offset_orig == filter->duration_orig) {
- memcpy (data, inject[i].data, inject[i].size);
- data += inject[i].size;
- } else {
- break;
- }
- }
- }
-
- /* do nothing but just call for consistence */
- metadata_lazy_update (&filter->parse_data);
-
- if (filter->duration_orig) {
- filter->duration = filter->duration_orig;
- for (i = 0; i < inject_len; ++i) {
- filter->duration += inject[i].size;
- }
- for (i = 0; i < strip_len; ++i) {
- filter->duration -= strip[i].size;
- }
- }
-
-}
-
-/*
- * Do parsing step-by-step and reconfigure caps if need
- * return:
- * META_PARSING_ERROR
- * META_PARSING_DONE
- * META_PARSING_NEED_MORE_DATA
- */
-
-static int
-gst_metadata_parse_parse (GstMetadataParse * filter, const guint8 * buf,
- guint32 size)
-{
-
- int ret = META_PARSING_ERROR;
-
- filter->next_offset = 0;
- filter->next_size = 0;
-
- ret = metadata_parse (&filter->parse_data, buf, size,
- &filter->next_offset, &filter->next_size);
-
- if (ret == META_PARSING_ERROR) {
- if (META_DATA_IMG_TYPE (filter->parse_data) == IMG_NONE) {
- /* image type not recognized */
- GST_ELEMENT_ERROR (filter, STREAM, TYPE_NOT_FOUND, (NULL),
- ("Only jpeg and png are supported"));
- goto done;
- }
- } else if (ret == META_PARSING_NEED_MORE_DATA) {
- filter->need_more_data = TRUE;
- } else {
- gst_metadata_parse_calculate_offsets (filter);
-
- filter->state = MT_STATE_PARSED;
- filter->need_more_data = FALSE;
- filter->need_send_tag = TRUE;
- }
-
- /* reconfigure caps if it is different from type detected by 'metadata_parse' function */
- if (filter->img_type != META_DATA_IMG_TYPE (filter->parse_data)) {
- filter->img_type = META_DATA_IMG_TYPE (filter->parse_data);
- if (!gst_metadata_parse_configure_caps (filter)) {
- GST_ELEMENT_ERROR (filter, STREAM, FORMAT, (NULL),
- ("Couldn't reconfigure caps for %s",
- gst_metadata_parse_get_type_name (filter->img_type)));
- ret = META_PARSING_ERROR;
- goto done;
- }
- }
-
-done:
-
- return ret;
-
-}
-
-/* chain function
- * this function does the actual processing
- */
-
-/* FIXME */
-/* Current parse is just done before is pull mode could be activated */
-/* may be it is possible to parse in chain mode by doing some trick with gst-adapter */
-/* the pipeline below would be a test for that case */
-/* gst-launch-0.10 filesrc location=Exif.jpg ! queue ! metadataparse ! filesink location=gen3.jpg */
-
-static GstFlowReturn
-gst_metadata_parse_chain (GstPad * pad, GstBuffer * buf)
-{
- GstMetadataParse *filter = NULL;
- GstFlowReturn ret = GST_FLOW_ERROR;
- guint32 buf_size = 0;
- guint32 new_buf_size = 0;
- gboolean append = FALSE;
-
- filter = GST_METADATA_PARSE (gst_pad_get_parent (pad));
-
- if (filter->state != MT_STATE_PARSED) {
- guint32 adpt_size = gst_adapter_available (filter->adapter_parsing);
-
- if (filter->next_offset) {
- if (filter->next_offset >= adpt_size) {
- /* clean adapter */
- gst_adapter_clear (filter->adapter_parsing);
- filter->next_offset -= adpt_size;
- if (filter->next_offset >= GST_BUFFER_SIZE (buf)) {
- /* we don't need data in this buffer */
- filter->next_offset -= GST_BUFFER_SIZE (buf);
- } else {
- GstBuffer *new_buf;
-
- /* add to adapter just need part from buf */
- new_buf =
- gst_buffer_new_and_alloc (GST_BUFFER_SIZE (buf) -
- filter->next_offset);
- memcpy (GST_BUFFER_DATA (new_buf),
- GST_BUFFER_DATA (buf) + filter->next_offset,
- GST_BUFFER_SIZE (buf) - filter->next_offset);
- filter->next_offset = 0;
- gst_adapter_push (filter->adapter_parsing, new_buf);
- }
- } else {
- /* remove first bytes and add buffer */
- gst_adapter_flush (filter->adapter_parsing, filter->next_offset);
- filter->next_offset = 0;
- gst_adapter_push (filter->adapter_parsing, gst_buffer_copy (buf));
- }
- } else {
- /* just push buffer */
- gst_adapter_push (filter->adapter_parsing, gst_buffer_copy (buf));
- }
-
- adpt_size = gst_adapter_available (filter->adapter_parsing);
-
- if (adpt_size && filter->next_size <= adpt_size) {
- const guint8 *new_buf =
- gst_adapter_peek (filter->adapter_parsing, adpt_size);
-
- if (gst_metadata_parse_parse (filter, new_buf,
- adpt_size) == META_PARSING_ERROR) {
- ret = GST_FLOW_ERROR;
- goto done;
- }
- }
- }
-
- if (filter->state == MT_STATE_PARSED) {
-
- if (filter->adapter_holding) {
- gst_adapter_push (filter->adapter_holding, buf);
- buf = gst_adapter_take_buffer (filter->adapter_holding,
- gst_adapter_available (filter->adapter_holding));
- g_object_unref (filter->adapter_holding);
- filter->adapter_holding = NULL;
- }
-
- if (filter->need_send_tag) {
- gst_metadata_parse_send_tags (filter);
- }
-
- if (filter->offset_orig + GST_BUFFER_SIZE (buf) == filter->duration_orig)
- append = TRUE;
-
- buf_size = GST_BUFFER_SIZE (buf);
-
- gst_metadata_parse_strip_push_buffer (filter, filter->offset_orig,
- &filter->prepend_buffer, &buf);
-
- if (buf) { /* may be all buffer has been striped */
- gst_buffer_set_caps (buf, GST_PAD_CAPS (filter->srcpad));
- new_buf_size = GST_BUFFER_SIZE (buf);
-
- ret = gst_pad_push (filter->srcpad, buf);
- buf = NULL; /* this function don't owner it anymore */
- if (ret != GST_FLOW_OK)
- goto done;
- } else {
- ret = GST_FLOW_OK;
- }
-
- if (append && filter->append_buffer) {
- gst_buffer_set_caps (filter->append_buffer,
- GST_PAD_CAPS (filter->srcpad));
- gst_buffer_ref (filter->append_buffer);
- ret = gst_pad_push (filter->srcpad, filter->append_buffer);
- if (ret != GST_FLOW_OK)
- goto done;
- }
-
- filter->offset_orig += buf_size;
- filter->offset += new_buf_size;
-
- } else {
- /* just store while still not parsed */
- if (!filter->adapter_holding)
- filter->adapter_holding = gst_adapter_new ();
- gst_adapter_push (filter->adapter_holding, buf);
- buf = NULL;
- ret = GST_FLOW_OK;
- }
-
-done:
-
-
- if (buf) {
- /* there was an error and buffer wasn't pushed */
- gst_buffer_unref (buf);
- buf = NULL;
- }
-
- gst_object_unref (filter);
-
- return ret;
-
-}
-
-static gboolean
-gst_metadata_parse_pull_range_parse (GstMetadataParse * filter)
-{
-
- int res;
- gboolean ret = TRUE;
- guint32 offset = 0;
- gint64 duration = 0;
- GstFormat format = GST_FORMAT_BYTES;
-
- if (!(ret =
- gst_pad_query_peer_duration (filter->sinkpad, &format, &duration))) {
- /* this should never happen, but try chain anyway */
- ret = TRUE;
- goto done;
- }
- filter->duration_orig = duration;
- if (format != GST_FORMAT_BYTES) {
- /* this should never happen, but try chain anyway */
- ret = TRUE;
- goto done;
- }
-
- do {
- GstFlowReturn flow;
- GstBuffer *buf = NULL;
-
- offset += filter->next_offset;
-
- /* 'filter->next_size' only says the minimum required number of bytes.
- We try provided more bytes (4096) just to avoid a lot of calls to 'metadata_parse'
- returning META_PARSING_NEED_MORE_DATA */
- if (filter->next_size < 4096) {
- if (duration - offset < 4096) {
- /* In case there is no 4096 bytes available upstream.
- It should be done upstream but we do here for safety */
- filter->next_size = duration - offset;
- } else {
- filter->next_size = 4096;
- }
- }
-
- flow =
- gst_pad_pull_range (filter->sinkpad, offset, filter->next_size, &buf);
- if (GST_FLOW_OK != flow) {
- ret = FALSE;
- goto done;
- }
-
- res =
- gst_metadata_parse_parse (filter, GST_BUFFER_DATA (buf),
- GST_BUFFER_SIZE (buf));
- if (res == META_PARSING_ERROR) {
- ret = FALSE;
- goto done;
- }
-
- gst_buffer_unref (buf);
-
- } while (res == META_PARSING_NEED_MORE_DATA);
-
-done:
-
- return ret;
-
-}
-
-static gboolean
-gst_metadata_parse_sink_activate (GstPad * pad)
-{
- GstMetadataParse *filter = NULL;
- gboolean ret = TRUE;
-
-
- filter = GST_METADATA_PARSE (GST_PAD_PARENT (pad));
-
- if (!gst_pad_check_pull_range (pad) ||
- !gst_pad_activate_pull (filter->sinkpad, TRUE)) {
- /* FIXME: currently it is not possible to parse in chain. Fail here ? */
- /* nothing to be done by now, activate push mode */
- return gst_pad_activate_push (pad, TRUE);
- }
-
- /* try to parse */
- if (filter->state == MT_STATE_NULL) {
- ret = gst_metadata_parse_pull_range_parse (filter);
- }
-
-done:
-
- if (ret) {
- gst_pad_activate_pull (pad, FALSE);
- gst_pad_activate_push (filter->srcpad, FALSE);
- if (!gst_pad_is_active (pad)) {
- ret = gst_pad_activate_push (filter->srcpad, TRUE);
- ret = ret && gst_pad_activate_push (pad, TRUE);
- }
- }
-
- return ret;
-
-}
-
-/*
- * offset - offset of buffer in original stream
- * size - size of buffer
- * seg_offset - offset of segment in original stream
- * seg_size - size of segment
- * boffset - offset inside buffer where segment starts (-1 for no intersection)
- * bsize - size of intersection
- * seg_binter - if segment start inside buffer is zero. if segment start before
- * buffer and intersect, it is the offset inside segment.
- *
- * ret:
- * -1 - segment before buffer
- * 0 - segment intersects
- * 1 - segment after buffer
- */
-
-static int
-gst_metadata_parse_get_strip_seg (const gint64 offset, guint32 size,
- const gint64 seg_offset, const guint32 seg_size,
- gint64 * boffset, guint32 * bsize, guint32 * seg_binter)
-{
- int ret = -1;
-
- *boffset = -1;
- *bsize = 0;
- *seg_binter = -1;
-
- /* all segment after buffer */
- if (seg_offset >= offset + size) {
- ret = 1;
- goto done;
- }
-
- if (seg_offset < offset) {
- /* segment start somewhere before buffer */
-
- /* all segment before buffer */
- if (seg_offset + seg_size <= offset) {
- ret = -1;
- goto done;
- }
-
- *seg_binter = offset - seg_offset;
- *boffset = 0;
-
- /* FIXME : optimize to >= size -> = size */
- if (seg_offset + seg_size >= offset + size) {
- /* segment cover all buffer */
- *bsize = size;
- } else {
- /* segment goes from start of buffer to somewhere before end */
- *bsize = seg_size - *seg_binter;
- }
-
- ret = 0;
-
- } else {
- /* segment start somewhere into buffer */
-
- *boffset = seg_offset - offset;
- *seg_binter = 0;
-
- if (seg_offset + seg_size <= offset + size) {
- /* all segment into buffer */
- *bsize = seg_size;
- } else {
- *bsize = size - *boffset;
- }
-
- ret = 0;
-
- }
-
-done:
-
- return ret;
-
-}
-
-/*
- * TRUE -> buffer striped or injeted
- * FALSE -> buffer unmodified
- */
-
-static gboolean
-gst_metadata_parse_strip_push_buffer (GstMetadataParse * filter,
- gint64 offset_orig, GstBuffer ** prepend, GstBuffer ** buf)
-{
- MetadataChunk *strip = filter->parse_data.strip_chunks.chunk;
- MetadataChunk *inject = filter->parse_data.inject_chunks.chunk;
- const gsize strip_len = filter->parse_data.strip_chunks.len;
- const gsize inject_len = filter->parse_data.inject_chunks.len;
- gboolean buffer_reallocated = FALSE;
-
- guint32 size_buf_in = GST_BUFFER_SIZE (*buf);
-
- gint64 *boffset_strip = NULL;
- guint32 *bsize_strip = NULL;
- guint32 *seg_binter_strip = NULL;
-
- int i, j;
- gboolean need_free_strip = FALSE;
-
- guint32 striped_bytes = 0;
- guint32 injected_bytes = 0;
-
- guint32 prepend_size = prepend && *prepend ? GST_BUFFER_SIZE (*prepend) : 0;
-
- if (inject_len) {
-
- for (i = 0; i < inject_len; ++i) {
- int res;
-
- if (inject[i].offset_orig >= offset_orig) {
- if (inject[i].offset_orig < offset_orig + size_buf_in) {
- injected_bytes += inject[i].size;
- } else {
- /* segment is after size (segments are sorted) */
- break;
- }
- }
- }
-
- }
-
- /*
- * strip segments
- */
-
- if (strip_len == 0)
- goto inject;
-
- if (G_UNLIKELY (strip_len > 16)) {
- boffset_strip = g_new (gint64, strip_len);
- bsize_strip = g_new (guint32, strip_len);
- seg_binter_strip = g_new (guint32, strip_len);
- need_free_strip = TRUE;
- } else {
- boffset_strip = g_alloca (sizeof (boffset_strip[0]) * strip_len);
- bsize_strip = g_alloca (sizeof (bsize_strip[0]) * strip_len);
- seg_binter_strip = g_alloca (sizeof (seg_binter_strip[0]) * strip_len);
- }
-
- memset (bsize_strip, 0x00, sizeof (bsize_strip[0]) * strip_len);
-
- for (i = 0; i < strip_len; ++i) {
- int res;
-
- res = gst_metadata_parse_get_strip_seg (offset_orig, size_buf_in,
- strip[i].offset_orig, strip[i].size, &boffset_strip[i], &bsize_strip[i],
- &seg_binter_strip[i]);
-
- /* segment is after size (segments are sorted) */
- striped_bytes += bsize_strip[i];
- if (res > 0) {
- break;
- }
-
- }
-
- if (striped_bytes) {
-
- guint8 *data;
-
- if (!buffer_reallocated) {
- buffer_reallocated = TRUE;
- if (injected_bytes + prepend_size > striped_bytes) {
- GstBuffer *new_buf =
- gst_buffer_new_and_alloc (GST_BUFFER_SIZE (*buf) + injected_bytes +
- prepend_size - striped_bytes);
-
- memcpy (GST_BUFFER_DATA (new_buf), GST_BUFFER_DATA (*buf),
- GST_BUFFER_SIZE (*buf));
-
- gst_buffer_unref (*buf);
- *buf = new_buf;
-
- } else if (GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_FLAG_READONLY)) {
- GstBuffer *new_buf = gst_buffer_copy (*buf);
-
- gst_buffer_unref (*buf);
- *buf = new_buf;
- GST_BUFFER_FLAG_UNSET (*buf, GST_BUFFER_FLAG_READONLY);
- GST_BUFFER_SIZE (*buf) += injected_bytes + prepend_size - striped_bytes;
- }
- }
-
- data = GST_BUFFER_DATA (*buf);
-
- striped_bytes = 0;
- for (i = 0; i < strip_len; ++i) {
- /* intersect */
- if (bsize_strip[i]) {
- memmove (data + boffset_strip[i] - striped_bytes,
- data + boffset_strip[i] + bsize_strip[i] - striped_bytes,
- size_buf_in - boffset_strip[i] - bsize_strip[i]);
- striped_bytes += bsize_strip[i];
- }
- }
- size_buf_in -= striped_bytes;
-
- }
-
-inject:
-
- /*
- * inject segments
- */
-
- if (inject_len) {
-
- guint8 *data;
- guint32 striped_so_far;
-
- if (!buffer_reallocated) {
- buffer_reallocated = TRUE;
- if (injected_bytes + prepend_size > striped_bytes) {
- GstBuffer *new_buf =
- gst_buffer_new_and_alloc (GST_BUFFER_SIZE (*buf) + injected_bytes +
- prepend_size - striped_bytes);
-
- memcpy (GST_BUFFER_DATA (new_buf), GST_BUFFER_DATA (*buf),
- GST_BUFFER_SIZE (*buf));
-
- gst_buffer_unref (*buf);
- *buf = new_buf;
-
- } else if (GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_FLAG_READONLY)) {
- GstBuffer *new_buf = gst_buffer_copy (*buf);
-
- gst_buffer_unref (*buf);
- *buf = new_buf;
- GST_BUFFER_FLAG_UNSET (*buf, GST_BUFFER_FLAG_READONLY);
- GST_BUFFER_SIZE (*buf) += injected_bytes + prepend_size - striped_bytes;
- }
- }
-
- data = GST_BUFFER_DATA (*buf);
-
- injected_bytes = 0;
- striped_so_far = 0;
- j = 0;
- for (i = 0; i < inject_len; ++i) {
- int res;
-
- while (j < strip_len) {
- if (strip[j].offset_orig < inject[i].offset_orig)
- striped_so_far += bsize_strip[j++];
- else
- break;
- }
-
- if (inject[i].offset_orig >= offset_orig) {
- if (inject[i].offset_orig <
- offset_orig + size_buf_in + striped_bytes - injected_bytes) {
- /* insert */
- guint32 buf_off =
- inject[i].offset_orig - offset_orig - striped_so_far +
- injected_bytes;
- memmove (data + buf_off + inject[i].size, data + buf_off,
- size_buf_in - buf_off);
- memcpy (data + buf_off, inject[i].data, inject[i].size);
- injected_bytes += inject[i].size;
- size_buf_in += inject[i].size;
- } else {
- /* segment is after size (segments are sorted) */
- break;
- }
- }
- }
-
- }
-
-
-done:
-
- if (prepend_size) {
- if (injected_bytes == 0 && striped_bytes == 0) {
- GstBuffer *new_buf =
- gst_buffer_new_and_alloc (size_buf_in + prepend_size);
-
- memcpy (GST_BUFFER_DATA (new_buf) + prepend_size, GST_BUFFER_DATA (*buf),
- size_buf_in);
-
- gst_buffer_unref (*buf);
- *buf = new_buf;
- } else {
- memmove (GST_BUFFER_DATA (*buf) + prepend_size, GST_BUFFER_DATA (*buf),
- size_buf_in);
- }
- memcpy (GST_BUFFER_DATA (*buf), GST_BUFFER_DATA (*prepend), prepend_size);
- gst_buffer_unref (*prepend);
- *prepend = NULL;
- }
-
- GST_BUFFER_SIZE (*buf) = size_buf_in + prepend_size;
-
- if (need_free_strip) {
- g_free (boffset_strip);
- g_free (bsize_strip);
- g_free (seg_binter_strip);
- }
-
- return injected_bytes || striped_bytes;
-
-}
-
-/*
- * pos - position in stream striped
- * orig_pos - position in original stream
- * return TRUE - position in original buffer
- * FALSE - position in inserted chunk
- */
-static gboolean
-gst_metadata_parse_translate_pos_to_orig (GstMetadataParse * filter, gint64 pos,
- gint64 * orig_pos, GstBuffer ** buf)
-{
- int i;
- MetadataChunk *strip = filter->parse_data.strip_chunks.chunk;
- MetadataChunk *inject = filter->parse_data.inject_chunks.chunk;
- const gsize strip_len = filter->parse_data.strip_chunks.len;
- const gsize inject_len = filter->parse_data.inject_chunks.len;
- gboolean ret = TRUE;
- guint64 new_buf_size = 0;
- guint64 injected_before = 0;
-
- if (G_UNLIKELY (pos == -1)) {
- *orig_pos = -1;
- return TRUE;
- } else if (G_UNLIKELY (pos >= filter->duration)) {
- /* this should never happen */
- *orig_pos = filter->duration_orig;
- return TRUE;
- }
-
- /* calculate for injected */
-
- /* just calculate size */
- *orig_pos = pos; /* save pos */
- for (i = 0; i < inject_len; ++i) {
- /* check if pos in inside chunk */
- if (inject[i].offset <= pos) {
- if (pos < inject[i].offset + inject[i].size) {
- /* orig pos points after insert chunk */
- new_buf_size += inject[i].size;
- /* put pos after current chunk */
- pos = inject[i].offset + inject[i].size;
- ret = FALSE;
- } else {
- /* in case pos is not inside a injected chunk */
- injected_before += inject[i].size;
- }
- } else {
- break;
- }
- }
-
- /* alloc buffer and calcute original pos */
- if (buf && ret == FALSE) {
- guint8 *data;
-
- if (*buf)
- gst_buffer_unref (*buf);
- *buf = gst_buffer_new_and_alloc (new_buf_size);
- data = GST_BUFFER_DATA (*buf);
- pos = *orig_pos; /* recover saved pos */
- for (i = 0; i < inject_len; ++i) {
- if (inject[i].offset > pos) {
- break;
- }
- if (inject[i].offset <= pos && pos < inject[i].offset + inject[i].size) {
- memcpy (data, inject[i].data, inject[i].size);
- data += inject[i].size;
- pos = inject[i].offset + inject[i].size;
- /* out position after insert chunk orig */
- *orig_pos = inject[i].offset_orig + inject[i].size;
- }
- }
- }
-
- if (ret == FALSE) {
- /* if it inside a injected is already done */
- goto done;
- }
-
- /* calculate for striped */
-
- *orig_pos = pos - injected_before;
- for (i = 0; i < strip_len; ++i) {
- if (strip[i].offset_orig > pos) {
- break;
- }
- *orig_pos += strip[i].size;
- }
-
-done:
-
- if (G_UNLIKELY (*orig_pos >= filter->duration_orig)) {
- *orig_pos = filter->duration_orig - 1;
- }
-
- return ret;
-
-}
-
-static gboolean
-gst_metadata_parse_checkgetrange (GstPad * srcpad)
-{
- GstMetadataParse *filter = NULL;
-
- filter = GST_METADATA_PARSE (GST_PAD_PARENT (srcpad));
-
- return gst_pad_check_pull_range (filter->sinkpad);
-}
-
-static GstFlowReturn
-gst_metadata_parse_get_range (GstPad * pad,
- guint64 offset, guint size, GstBuffer ** buf)
-{
- GstMetadataParse *filter = NULL;
- GstFlowReturn ret = GST_FLOW_OK;
- gint64 offset_orig = 0;
- guint size_orig;
- GstBuffer *prepend = NULL;
- gboolean need_append = FALSE;
-
- filter = GST_METADATA_PARSE (GST_PAD_PARENT (pad));
-
- if (filter->state != MT_STATE_PARSED) {
- ret = GST_FLOW_ERROR;
- goto done;
- }
-
- if (offset + size > filter->duration) {
- size = filter->duration - offset;
- }
-
- size_orig = size;
-
- if (filter->need_send_tag) {
- gst_metadata_parse_send_tags (filter);
- }
-
- gst_metadata_parse_translate_pos_to_orig (filter, offset, &offset_orig,
- &prepend);
-
- if (size > 1) {
- gint64 pos;
-
- pos = offset + size - 1;
- gst_metadata_parse_translate_pos_to_orig (filter, pos, &pos, NULL);
- size_orig = pos + 1 - offset_orig;
- }
-
- if (size_orig) {
-
- ret = gst_pad_pull_range (filter->sinkpad, offset_orig, size_orig, buf);
-
- if (ret == GST_FLOW_OK && *buf) {
- gst_metadata_parse_strip_push_buffer (filter, offset_orig, &prepend, buf);
-
- if (GST_BUFFER_SIZE (*buf) < size) {
- /* need append */
- need_append = TRUE;
- }
-
- }
- } else {
- *buf = prepend;
- }
-
-done:
-
- if (need_append) {
- /* FIXME: together with SEEK and
- * gst_metadata_parse_translate_pos_to_orig
- * this way if chunk is added in the end we are in trolble
- * ...still not implemented 'cause it will not be the
- * case for the time being
- */
- }
-
- return ret;
-
-}
-
-static gboolean
-gst_metadata_parse_src_activate_pull (GstPad * pad, gboolean active)
-{
- GstMetadataParse *filter = NULL;
- gboolean ret;
-
- filter = GST_METADATA_PARSE (gst_pad_get_parent (pad));
-
- ret = gst_pad_activate_pull (filter->sinkpad, active);
-
- if (ret && filter->state == MT_STATE_NULL) {
- ret = gst_metadata_parse_pull_range_parse (filter);
- }
-
- gst_object_unref (filter);
-
- return ret;
-}
-
-
-static GstStateChangeReturn
-gst_metadata_parse_change_state (GstElement * element,
- GstStateChange transition)
-{
- GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
- GstMetadataParse *filter = GST_METADATA_PARSE (element);
-
- switch (transition) {
- case GST_STATE_CHANGE_NULL_TO_READY:
- gst_metadata_parse_init_members (filter);
- filter->adapter_parsing = gst_adapter_new ();
- metadata_init (&filter->parse_data, TRUE, filter->options);
- break;
- default:
- break;
- }
-
- ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
- if (ret == GST_STATE_CHANGE_FAILURE)
- goto done;
-
- switch (transition) {
- case GST_STATE_CHANGE_PAUSED_TO_READY:
- filter->offset = 0;
- filter->offset_orig = 0;
- if (filter->adapter_parsing) {
- gst_adapter_clear (filter->adapter_parsing);
- }
- if (filter->adapter_holding) {
- gst_adapter_clear (filter->adapter_holding);
- }
- if (filter->state != MT_STATE_PARSED) {
- /* cleanup parser */
- /* FIXME: could be improved a bit to avoid mem allocation */
- metadata_dispose (&filter->parse_data);
- metadata_init (&filter->parse_data, TRUE, filter->options);
- }
- break;
- case GST_STATE_CHANGE_READY_TO_NULL:
- gst_metadata_parse_dispose_members (filter);
- break;
- default:
- break;
- }
-
-done:
-
- return ret;
-}
-
-/*
- * element plugin init function
- */
-
-gboolean
-gst_metadata_parse_plugin_init (GstPlugin * plugin)
-{
- GST_DEBUG_CATEGORY_INIT (gst_metadata_parse_debug, "metadataparse", 0,
- "Metadata demuxer");
-
- return gst_element_register (plugin, "metadataparse",
- GST_RANK_PRIMARY + 1, GST_TYPE_METADATA_PARSE);
-}
+++ /dev/null
-/*
- * GStreamer
- * Copyright 2007 Edgard Lima <edgard.lima@indt.org.br>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- *
- * Alternatively, the contents of this file may be used under the
- * GNU Lesser General Public License Version 2.1 (the "LGPL"), in
- * which case the following provisions apply instead of the ones
- * mentioned above:
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifndef __GST_METADATA_PARSE_H__
-#define __GST_METADATA_PARSE_H__
-
-#include <gst/gst.h>
-
-#include "metadata.h"
-
-G_BEGIN_DECLS
-/* #defines don't like whitespacey bits */
-#define GST_TYPE_METADATA_PARSE \
- (gst_metadata_parse_get_type())
-#define GST_METADATA_PARSE(obj) \
- (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_METADATA_PARSE,GstMetadataParse))
-#define GST_METADATA_PARSE_CLASS(klass) \
- (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_METADATA_PARSE,GstMetadataParseClass))
-#define GST_IS_METADATA_PARSE(obj) \
- (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_METADATA_PARSE))
-#define GST_IS_METADATA_PARSE_CLASS(klass) \
- (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_METADATA_PARSE))
-typedef struct _GstMetadataParse GstMetadataParse;
-typedef struct _GstMetadataParseClass GstMetadataParseClass;
-
-typedef enum _tag_MetadataState
-{
- MT_STATE_NULL, /* still need to check media type */
- MT_STATE_PARSED
-} MetadataState;
-
-struct _GstMetadataParse
-{
- GstElement element;
-
- GstPad *sinkpad, *srcpad;
-
- guint8 options;
-
- gboolean need_send_tag;
-
- MetaData parse_data;
- GstAdapter *adapter_parsing;
- GstAdapter *adapter_holding;
- guint32 next_offset;
- guint32 next_size;
- ImageType img_type;
-
- gint64 offset_orig; /* offset in original stream */
- gint64 duration_orig; /* durarion of stream */
- gint64 offset; /* offset in current stream */
- gint64 duration; /* durarion of modified stream */
-
- MetadataState state;
-
- GstBuffer * prepend_buffer;
- GstBuffer * append_buffer;
-
- gboolean need_more_data;
-
-
-
-};
-
-struct _GstMetadataParseClass
-{
- GstElementClass parent_class;
-};
-
-extern GType gst_metadata_parse_get_type (void);
-
-G_END_DECLS
-#endif /* __GST_METADATA_PARSE_H__ */
{
ExifTag exif;
const gchar *str;
- GType type;
} MapIntStr;
static void
/* *INDENT-OFF* */
static MapIntStr mappedTags[] = {
- {EXIF_TAG_MAKE, /*EXIF_FORMAT_ASCII,*/ GST_TAG_DEVICE_MAKE, G_TYPE_STRING},
- {EXIF_TAG_MODEL, /*EXIF_FORMAT_ASCII,*/ GST_TAG_DEVICE_MODEL, G_TYPE_STRING},
- {EXIF_TAG_SOFTWARE, /*EXIF_FORMAT_ASCII,*/ GST_TAG_CREATOR_TOOL, G_TYPE_STRING},
- {EXIF_TAG_X_RESOLUTION, /*EXIF_FORMAT_RATIONAL,*/ GST_TAG_IMAGE_XRESOLUTION, G_TYPE_FLOAT}, /* inches */
- {EXIF_TAG_Y_RESOLUTION, /*EXIF_FORMAT_RATIONAL,*/ GST_TAG_IMAGE_YRESOLUTION, G_TYPE_FLOAT}, /* inches */
- {EXIF_TAG_EXPOSURE_TIME, /*EXIF_FORMAT_RATIONAL,*/ GST_TAG_CAPTURE_EXPOSURE_TIME, G_TYPE_FLOAT},
- {EXIF_TAG_FNUMBER, /*EXIF_FORMAT_RATIONAL,*/ GST_TAG_CAPTURE_FNUMBER, G_TYPE_FLOAT},
- {EXIF_TAG_EXPOSURE_PROGRAM, /*EXIF_FORMAT_SHORT,*/ GST_TAG_CAPTURE_EXPOSURE_PROGRAM, G_TYPE_UINT},
- {EXIF_TAG_BRIGHTNESS_VALUE, /*EXIF_FORMAT_SRATIONAL,*/ GST_TAG_CAPTURE_BRIGHTNESS, G_TYPE_FLOAT},
- {EXIF_TAG_WHITE_BALANCE, /*EXIF_FORMAT_SHORT,*/ GST_TAG_CAPTURE_WHITE_BALANCE, G_TYPE_UINT},
- {EXIF_TAG_DIGITAL_ZOOM_RATIO, /*EXIF_FORMAT_RATIONAL,*/ GST_TAG_CAPTURE_DIGITAL_ZOOM, G_TYPE_FLOAT},
- {EXIF_TAG_GAIN_CONTROL, /*EXIF_FORMAT_SHORT,*/ GST_TAG_CAPTURE_GAIN, G_TYPE_UINT},
- {EXIF_TAG_CONTRAST, /*EXIF_FORMAT_SHORT,*/ GST_TAG_CAPTURE_CONTRAST, G_TYPE_INT},
- {EXIF_TAG_SATURATION, /*EXIF_FORMAT_SHORT,*/ GST_TAG_CAPTURE_SATURATION, G_TYPE_INT},
- {0, NULL, G_TYPE_NONE}
+ {EXIF_TAG_MAKE, /*ASCII,*/ GST_TAG_DEVICE_MAKE, /*STRING*/},
+ {EXIF_TAG_MODEL, /*ASCII,*/ GST_TAG_DEVICE_MODEL, /*STRING*/},
+ {EXIF_TAG_SOFTWARE, /*ASCII,*/ GST_TAG_CREATOR_TOOL, /*STRING*/},
+ {EXIF_TAG_X_RESOLUTION, /*RATIONAL,*/ GST_TAG_IMAGE_XRESOLUTION, /*FRACTION*/}, /* inches */
+ {EXIF_TAG_Y_RESOLUTION, /*RATIONAL,*/ GST_TAG_IMAGE_YRESOLUTION, /*FRACTION*/}, /* inches */
+ {EXIF_TAG_EXPOSURE_TIME, /*RATIONAL,*/ GST_TAG_CAPTURE_EXPOSURE_TIME, /*FRACTION*/},
+ {EXIF_TAG_FNUMBER, /*RATIONAL,*/ GST_TAG_CAPTURE_FNUMBER, /*FRACTION*/},
+ {EXIF_TAG_EXPOSURE_PROGRAM, /*SHORT,*/ GST_TAG_CAPTURE_EXPOSURE_PROGRAM, /*UINT*/},
+ {EXIF_TAG_BRIGHTNESS_VALUE, /*SRATIONAL,*/ GST_TAG_CAPTURE_BRIGHTNESS, /*FRACTION*/},
+ {EXIF_TAG_WHITE_BALANCE, /*SHORT,*/ GST_TAG_CAPTURE_WHITE_BALANCE, /*UINT*/},
+ {EXIF_TAG_DIGITAL_ZOOM_RATIO, /*RATIONAL,*/ GST_TAG_CAPTURE_DIGITAL_ZOOM, /*FRACTION*/},
+ {EXIF_TAG_GAIN_CONTROL, /*SHORT,*/ GST_TAG_CAPTURE_GAIN, /*UINT*/},
+ {EXIF_TAG_CONTRAST, /*SHORT,*/ GST_TAG_CAPTURE_CONTRAST, /*INT*/},
+ {EXIF_TAG_SATURATION, /*SHORT,*/ GST_TAG_CAPTURE_SATURATION, /*INT*/},
+ {0, NULL}
};
/* *INDENT-ON* */
int i = 0;
while (mappedTags[i].exif) {
- if (exif == mappedTags[i].exif)
+ if (exif == mappedTags[i].exif) {
+ *type = gst_tag_get_type (mappedTags[i].str);
break;
+ }
++i;
}
- *type = mappedTags[i].type;
return mappedTags[i].str;
}
int i = 0;
while (mappedTags[i].exif) {
- if (0 == strcmp (mappedTags[i].str, tag))
+ if (0 == strcmp (mappedTags[i].str, tag)) {
+ *type = gst_tag_get_type (tag);
break;
+ }
++i;
}
- *type = mappedTags[i].type;
return mappedTags[i].exif;
}
goto done;
}
- if (tag) {
- /* FIXME: create a generic function for this */
- /* could also be used with entry->format */
- switch (type) {
- case G_TYPE_STRING:
- gst_tag_list_add (meudata->taglist, meudata->mode, tag,
- exif_entry_get_value (entry, buf, sizeof (buf)), NULL);
+ if (!tag)
+ goto done;
+
+ if (type == GST_TYPE_FRACTION) {
+ gint numerator = 0;
+ gint denominator = 1;
+
+ switch (entry->format) {
+ case EXIF_FORMAT_SRATIONAL:
+ {
+ ExifSRational v_srat;
+
+ v_srat = exif_get_srational (entry->data, byte_order);
+ if (v_srat.denominator) {
+ numerator = (gint) v_srat.numerator;
+ denominator = (gint) v_srat.denominator;
+ }
+ }
break;
- case G_TYPE_FLOAT:
+ case EXIF_FORMAT_RATIONAL:
{
- gfloat f_value;
+ ExifRational v_rat;
- switch (entry->format) {
- case EXIF_FORMAT_SRATIONAL:
- {
- ExifSRational v_srat;
-
- v_srat = exif_get_srational (entry->data, byte_order);
- if (v_srat.denominator == 0)
- f_value = 0.0f;
- else
- f_value = (float) v_srat.numerator / (float) v_srat.denominator;
- if (v_srat.numerator == 0xFFFFFFFF) {
- if (entry->tag == EXIF_TAG_BRIGHTNESS_VALUE) {
- f_value = 100.0f;
- }
- }
- }
- break;
- case EXIF_FORMAT_RATIONAL:
- {
- ExifRational v_rat;
-
- v_rat = exif_get_rational (entry->data, byte_order);
- if (v_rat.denominator == 0)
- f_value = 0.0f;
- else
- f_value = (float) v_rat.numerator / (float) v_rat.denominator;
- if (meudata->resolution_unit == 3) {
- /* converts from cm to inches */
- if (entry->tag == EXIF_TAG_X_RESOLUTION
- || entry->tag == EXIF_TAG_Y_RESOLUTION) {
- f_value *= 0.4f;
- }
- }
+ v_rat = exif_get_rational (entry->data, byte_order);
+ if (v_rat.denominator) {
+ numerator = (gint) v_rat.numerator;
+ denominator = (gint) v_rat.denominator;
+ }
+ if (meudata->resolution_unit == 3) {
+ /* converts from cm to inches */
+ if (entry->tag == EXIF_TAG_X_RESOLUTION
+ || entry->tag == EXIF_TAG_Y_RESOLUTION) {
+ numerator *= 2;
+ denominator *= 5;
}
- break;
- default:
- GST_ERROR ("Unexpected Tag Type");
- goto done;
- break;
}
- gst_tag_list_add (meudata->taglist, meudata->mode, tag, f_value, NULL);
}
break;
+ default:
+ GST_ERROR ("Unexpected Tag Type");
+ goto done;
+ break;
+ }
+ gst_tag_list_add (meudata->taglist, meudata->mode, tag, numerator,
+ denominator, NULL);
+
+ } else {
+
+ switch (type) {
+ case G_TYPE_STRING:
+ gst_tag_list_add (meudata->taglist, meudata->mode, tag,
+ exif_entry_get_value (entry, buf, sizeof (buf)), NULL);
+ break;
case G_TYPE_INT:
/* fall through */
case G_TYPE_UINT:
default:
break;
}
+
}
+
done:
GST_LOG ("\n Entry %p: %s (%s)\n"
exif_entry_initialize (entry, exif_tag);
}
- switch (type) {
- case G_TYPE_STRING:
- {
- gchar *value = NULL;
+ if (type == GST_TYPE_FRACTION) {
+ const GValue *gvalue = gst_tag_list_get_value_index (list, tag, 0);
+ gint numerator = gst_value_get_fraction_numerator (gvalue);
+ gint denominator = gst_value_get_fraction_denominator (gvalue);
- if (gst_tag_list_get_string (list, tag, &value)) {
- entry->components = strlen (value) + 1;
- entry->size = exif_format_get_size (entry->format) * entry->components;
- entry->data = value;
+ switch (entry->format) {
+ case EXIF_FORMAT_SRATIONAL:
+ {
+ ExifSRational sr = { numerator, denominator };
+
+ exif_set_srational (entry->data, byte_order, sr);
}
- }
- break;
- case G_TYPE_FLOAT:
- {
- gfloat value;
+ break;
+ case EXIF_FORMAT_RATIONAL:
+ {
+ ExifRational r = { numerator, denominator };
- gst_tag_list_get_float (list, tag, &value);
+ exif_set_rational (entry->data, byte_order, r);
+ if (entry->tag == EXIF_TAG_X_RESOLUTION ||
+ entry->tag == EXIF_TAG_Y_RESOLUTION) {
+ ExifEntry *unit_entry = NULL;
- switch (entry->format) {
- case EXIF_FORMAT_SRATIONAL:
- {
- ExifSRational sr;
+ if ((unit_entry = exif_data_get_entry (ed, EXIF_TAG_RESOLUTION_UNIT))) {
+ ExifShort vsh = exif_get_short (unit_entry->data, byte_order);
- sr = float_to_srational (value);
- if (entry->tag == EXIF_TAG_BRIGHTNESS_VALUE) {
- if (value == 100.0f) {
- sr.numerator = 0xFFFFFFFF;
- sr.denominator = 1;
- }
+ if (vsh != 2) /* inches */
+ exif_set_short (unit_entry->data, byte_order, 2);
}
-
- exif_set_srational (entry->data, byte_order, sr);
}
- break;
- case EXIF_FORMAT_RATIONAL:
- {
- ExifRational r;
-
- r = float_to_rational (value);
- exif_set_rational (entry->data, byte_order, r);
- if (entry->tag == EXIF_TAG_X_RESOLUTION ||
- entry->tag == EXIF_TAG_Y_RESOLUTION) {
- ExifEntry *unit_entry = NULL;
-
- if ((unit_entry =
- exif_data_get_entry (ed, EXIF_TAG_RESOLUTION_UNIT))) {
- ExifShort vsh = exif_get_short (unit_entry->data, byte_order);
-
- if (vsh != 2) /* inches */
- exif_set_short (unit_entry->data, byte_order, 2);
- }
- }
- }
- break;
- default:
- break;
}
+ break;
+ default:
+ break;
}
- break;
- case G_TYPE_UINT:
- case G_TYPE_INT:
- {
- gint value;
- ExifShort v_short;
-
- if (G_TYPE_UINT == type) {
- gst_tag_list_get_uint (list, tag, &value);
- } else {
- gst_tag_list_get_int (list, tag, &value);
+ } else {
+
+ switch (type) {
+ case G_TYPE_STRING:
+ {
+ gchar *value = NULL;
+
+ if (gst_tag_list_get_string (list, tag, &value)) {
+ entry->components = strlen (value) + 1;
+ entry->size =
+ exif_format_get_size (entry->format) * entry->components;
+ entry->data = value;
+ }
}
- if (entry->tag == EXIF_TAG_CONTRAST || entry->tag == EXIF_TAG_SATURATION) {
- if (value < -33)
- value = 1; /* low */
- else if (value < 34)
- value = 0; /* normal */
- else
- value = 2; /* high */
+ break;
+ case G_TYPE_UINT:
+ case G_TYPE_INT:
+ {
+ gint value;
+ ExifShort v_short;
+
+ if (G_TYPE_UINT == type) {
+ gst_tag_list_get_uint (list, tag, &value);
+ } else {
+ gst_tag_list_get_int (list, tag, &value);
+ }
+ if (entry->tag == EXIF_TAG_CONTRAST
+ || entry->tag == EXIF_TAG_SATURATION) {
+ if (value < -33)
+ value = 1; /* low */
+ else if (value < 34)
+ value = 0; /* normal */
+ else
+ value = 2; /* high */
+ }
+ v_short = value;
+ exif_set_short (entry->data, byte_order, v_short);
}
- v_short = value;
- exif_set_short (entry->data, byte_order, v_short);
+ break;
+ default:
+ break;
}
- break;
- default:
- break;
}
done:
static void
metadata_tags_exif_register (void)
-{
- gst_tag_register (GST_TAG_EXIF, GST_TAG_FLAG_META,
- GST_TYPE_BUFFER, GST_TAG_EXIF, "exif metadata chunk", NULL);
-}
-
-/*
- * IPTC tags
- */
-
-static void
-metadata_tags_iptc_register (void)
-{
- gst_tag_register (GST_TAG_IPTC, GST_TAG_FLAG_META,
- GST_TYPE_BUFFER, GST_TAG_IPTC, "iptc metadata chunk", NULL);
-}
-
-/*
- * XMP tags
- */
-
-static void
-metadata_tags_xmp_register (void)
-{
- gst_tag_register (GST_TAG_XMP, GST_TAG_FLAG_META,
- GST_TYPE_BUFFER, GST_TAG_XMP, "xmp metadata chunk", NULL);
-}
-
-/*
- *
- */
-
-void
-metadata_tags_register (void)
{
/* devices tags */
/* image tags */
- gst_tag_register (GST_TAG_IMAGE_XRESOLUTION, GST_TAG_FLAG_META, G_TYPE_FLOAT,
- GST_TAG_IMAGE_XRESOLUTION, "Horizontal resolution in pixels per inch",
- NULL);
- gst_tag_register (GST_TAG_IMAGE_YRESOLUTION, GST_TAG_FLAG_META, G_TYPE_FLOAT,
- GST_TAG_IMAGE_YRESOLUTION, "Vertical resolution in pixels per inch",
- NULL);
+ gst_tag_register (GST_TAG_IMAGE_XRESOLUTION, GST_TAG_FLAG_META,
+ GST_TYPE_FRACTION, GST_TAG_IMAGE_XRESOLUTION,
+ "Horizontal resolution in pixels per inch", NULL);
+ gst_tag_register (GST_TAG_IMAGE_YRESOLUTION, GST_TAG_FLAG_META,
+ GST_TYPE_FRACTION, GST_TAG_IMAGE_YRESOLUTION,
+ "Vertical resolution in pixels per inch", NULL);
/* capture tags */
gst_tag_register (GST_TAG_CAPTURE_EXPOSURE_TIME, GST_TAG_FLAG_META,
- G_TYPE_FLOAT, GST_TAG_CAPTURE_EXPOSURE_TIME, "Exposure time in seconds",
+ GST_TYPE_FRACTION, GST_TAG_CAPTURE_EXPOSURE_TIME,
+ "Exposure time in seconds", NULL);
+ gst_tag_register (GST_TAG_CAPTURE_FNUMBER, GST_TAG_FLAG_META,
+ GST_TYPE_FRACTION, GST_TAG_CAPTURE_FNUMBER, "F number (focal ratio)",
NULL);
- gst_tag_register (GST_TAG_CAPTURE_FNUMBER, GST_TAG_FLAG_META, G_TYPE_FLOAT,
- GST_TAG_CAPTURE_FNUMBER, "F number (focal ratio)", NULL);
/**
0 - not defined
1- Manual
"Class of program used for exposure", NULL);
/** The unit is the APEX value.
Ordinarily it is given in the range of -99.99 to 99.99.
- 100.0 mean unknown
+ if numerator is 0xFFFFFFFF means unknown
*/
- gst_tag_register (GST_TAG_CAPTURE_BRIGHTNESS, GST_TAG_FLAG_META, G_TYPE_FLOAT,
- GST_TAG_CAPTURE_BRIGHTNESS, "Brightness (APEX from -99.99 to 99.99)",
- NULL);
+ gst_tag_register (GST_TAG_CAPTURE_BRIGHTNESS, GST_TAG_FLAG_META,
+ GST_TYPE_FRACTION, GST_TAG_CAPTURE_BRIGHTNESS,
+ "Brightness (APEX from -99.99 to 99.99)", NULL);
/**
0- Auto
1- Off
/** if Zero ZOOM not used
*/
gst_tag_register (GST_TAG_CAPTURE_DIGITAL_ZOOM, GST_TAG_FLAG_META,
- G_TYPE_FLOAT, GST_TAG_CAPTURE_DIGITAL_ZOOM, "Digital zoom ratio", NULL);
+ GST_TYPE_FRACTION, GST_TAG_CAPTURE_DIGITAL_ZOOM, "Digital zoom ratio",
+ NULL);
/**
0- None
1- Low gain up
gst_tag_register (GST_TAG_CAPTURE_SATURATION, GST_TAG_FLAG_META, G_TYPE_INT,
GST_TAG_CAPTURE_SATURATION, "", NULL);
+}
+
+/*
+ * IPTC tags
+ */
+
+static void
+metadata_tags_iptc_register (void)
+{
+
+}
+
+/*
+ * XMP tags
+ */
+
+static void
+metadata_tags_xmp_register (void)
+{
+
+}
+
+/*
+ *
+ */
+
+void
+metadata_tags_register (void)
+{
+
+ /* whole chunk tags */
+
+ gst_tag_register (GST_TAG_EXIF, GST_TAG_FLAG_META,
+ GST_TYPE_BUFFER, GST_TAG_EXIF, "exif metadata chunk", NULL);
+
+ gst_tag_register (GST_TAG_IPTC, GST_TAG_FLAG_META,
+ GST_TYPE_BUFFER, GST_TAG_IPTC, "iptc metadata chunk", NULL);
+
+ gst_tag_register (GST_TAG_XMP, GST_TAG_FLAG_META,
+ GST_TYPE_BUFFER, GST_TAG_XMP, "xmp metadata chunk", NULL);
+
+ /* tags related to some metadata */
+
metadata_tags_exif_register ();
metadata_tags_iptc_register ();
metadata_tags_xmp_register ();
type = gst_tag_get_type (tag);
- switch (type) {
- case G_TYPE_STRING:
- gst_tag_list_add (*list, GST_TAG_MERGE_REPLACE, tag, value, NULL);
- ret = TRUE;
- break;
- case G_TYPE_FLOAT:
- {
- gfloat fv = (gfloat) g_strtod (value, NULL);
+ if (type == GST_TYPE_FRACTION) {
+ /* FIXME: Ask GStreamer guys to add GST_FRACTION support to TAGS */
+ /* Even better: ask GLib guys to add this type */
+ gint n, d;
- gst_tag_list_add (*list, GST_TAG_MERGE_REPLACE, tag, fv, NULL);
- ret = TRUE;
- }
- break;
- case G_TYPE_INT:
- /* fall through */
- case G_TYPE_UINT:
- {
- gint iv = atoi (value);
-
- gst_tag_list_add (*list, GST_TAG_MERGE_REPLACE, tag, iv, NULL);
- ret = TRUE;
+ sscanf (value, "%d/%d", &n, &d);
+ gst_tag_list_add (*list, GST_TAG_MERGE_REPLACE, tag, n, d, NULL);
+ ret = TRUE;
+ } else {
+ switch (type) {
+ case G_TYPE_STRING:
+ gst_tag_list_add (*list, GST_TAG_MERGE_REPLACE, tag, value, NULL);
+ ret = TRUE;
+ break;
+ case G_TYPE_FLOAT:
+ {
+ gfloat fv = (gfloat) g_strtod (value, NULL);
+
+ gst_tag_list_add (*list, GST_TAG_MERGE_REPLACE, tag, fv, NULL);
+ ret = TRUE;
+ }
+ break;
+ case G_TYPE_INT:
+ /* fall through */
+ case G_TYPE_UINT:
+ {
+ gint iv = atoi (value);
+
+ gst_tag_list_add (*list, GST_TAG_MERGE_REPLACE, tag, iv, NULL);
+ ret = TRUE;
+ }
+ break;
+ default:
+ fprintf (stderr, "This app still doesn't handle type (%s)(%ld)\n",
+ g_type_name (type), type);
+ break;
}
- break;
- default:
- fprintf (stderr, "This app still doesn't handle type (%s)(%ld)\n",
- g_type_name (type), type);
- break;
}
done:
/* create elements */
gst_source = gst_element_factory_make ("filesrc", NULL);
- gst_metadata_demux = gst_element_factory_make ("metadataparse", NULL);
+ gst_metadata_demux = gst_element_factory_make ("metadatademux", NULL);
gst_metadata_mux = gst_element_factory_make ("metadatamux", NULL);
gst_file_sink = gst_element_factory_make ("filesink", NULL);
/* create elements */
gst_source = gst_element_factory_make ("filesrc", NULL);
- gst_metadata_demux = gst_element_factory_make ("metadataparse", NULL);
+ gst_metadata_demux = gst_element_factory_make ("metadatademux", NULL);
/* let's do a dummy stuff to avoid decodebin */
if (is_png (filename))
gst_image_dec = gst_element_factory_make ("pngdec", NULL);
projects / platform / upstream / gstreamer.git / commitdiff