--- /dev/null
+/*
+ * ISO File Format parsing library
+ *
+ * gstisoff.h
+ *
+ * Copyright (C) 2015 Samsung Electronics. All rights reserved.
+ * Author: Thiago Santos <thiagoss@osg.samsung.com>
+ *
+ * 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 2.1 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 (COPYING); if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include "gstisoff.h"
+#include <gst/base/gstbytereader.h>
+
+void
+gst_isoff_sidx_parser_init (GstSidxParser * parser)
+{
+ parser->status = GST_ISOFF_SIDX_PARSER_INIT;
+ parser->cumulative_entry_size = 0;
+ parser->sidx.entries = NULL;
+ parser->sidx.entries_count = 0;
+}
+
+void
+gst_isoff_sidx_parser_clear (GstSidxParser * parser)
+{
+ g_free (parser->sidx.entries);
+ parser->sidx.entries = NULL;
+}
+
+static void
+gst_isoff_parse_sidx_entry (GstSidxBoxEntry * entry, GstByteReader * reader)
+{
+ guint32 aux;
+
+ aux = gst_byte_reader_get_uint32_be_unchecked (reader);
+ entry->ref_type = aux >> 31;
+ entry->size = aux & 0x7FFFFFFF;
+ entry->duration = gst_byte_reader_get_uint32_be_unchecked (reader);
+ aux = gst_byte_reader_get_uint32_be_unchecked (reader);
+ entry->starts_with_sap = aux >> 31;
+ entry->sap_type = ((aux >> 28) & 0x7);
+ entry->sap_delta_time = aux & 0xFFFFFFF;
+}
+
+GstIsoffParserResult
+gst_isoff_sidx_parser_add_data (GstSidxParser * parser, const guint8 * buffer,
+ gint length, guint * consumed)
+{
+ GstIsoffParserResult res = GST_ISOFF_PARSER_OK;
+ GstByteReader reader;
+ gsize remaining;
+ guint32 fourcc;
+
+ gst_byte_reader_init (&reader, buffer, length);
+
+ switch (parser->status) {
+ case GST_ISOFF_SIDX_PARSER_INIT:
+ if (gst_byte_reader_get_remaining (&reader) < GST_ISOFF_FULL_BOX_SIZE) {
+ break;
+ }
+
+ parser->size = gst_byte_reader_get_uint32_be_unchecked (&reader);
+ fourcc = gst_byte_reader_get_uint32_le_unchecked (&reader);
+ if (fourcc != GST_ISOFF_FOURCC_SIDX) {
+ res = GST_ISOFF_PARSER_UNEXPECTED;
+ gst_byte_reader_set_pos (&reader, 0);
+ break;
+ }
+ if (parser->size == 1) {
+ if (gst_byte_reader_get_remaining (&reader) < 12) {
+ gst_byte_reader_set_pos (&reader, 0);
+ break;
+ }
+
+ parser->size = gst_byte_reader_get_uint64_be_unchecked (&reader);
+ }
+ if (parser->size == 0) {
+ res = GST_ISOFF_PARSER_ERROR;
+ gst_byte_reader_set_pos (&reader, 0);
+ break;
+ }
+ parser->sidx.version = gst_byte_reader_get_uint8_unchecked (&reader);
+ parser->sidx.flags = gst_byte_reader_get_uint24_le_unchecked (&reader);
+
+ parser->status = GST_ISOFF_SIDX_PARSER_HEADER;
+
+ case GST_ISOFF_SIDX_PARSER_HEADER:
+ remaining = gst_byte_reader_get_remaining (&reader);
+ if (remaining < 12 + (parser->sidx.version == 0 ? 8 : 16)) {
+ break;
+ }
+
+ parser->sidx.ref_id = gst_byte_reader_get_uint32_be_unchecked (&reader);
+ parser->sidx.timescale =
+ gst_byte_reader_get_uint32_be_unchecked (&reader);
+ if (parser->sidx.version == 0) {
+ parser->sidx.earliest_pts =
+ gst_byte_reader_get_uint32_be_unchecked (&reader);
+ parser->sidx.first_offset = parser->sidx.earliest_pts =
+ gst_byte_reader_get_uint32_be_unchecked (&reader);
+ } else {
+ parser->sidx.earliest_pts =
+ gst_byte_reader_get_uint64_be_unchecked (&reader);
+ parser->sidx.first_offset =
+ gst_byte_reader_get_uint64_be_unchecked (&reader);
+ }
+ /* skip 2 reserved bytes */
+ gst_byte_reader_skip_unchecked (&reader, 2);
+ parser->sidx.entries_count =
+ gst_byte_reader_get_uint16_be_unchecked (&reader);
+
+ GST_LOG ("Timescale: %" G_GUINT32_FORMAT, parser->sidx.timescale);
+ GST_LOG ("Earliest pts: %" G_GUINT64_FORMAT, parser->sidx.earliest_pts);
+ GST_LOG ("First offset: %" G_GUINT64_FORMAT, parser->sidx.first_offset);
+
+ parser->cumulative_pts =
+ gst_util_uint64_scale_int_round (parser->sidx.earliest_pts,
+ GST_SECOND, parser->sidx.timescale);
+
+ if (parser->sidx.entries_count) {
+ parser->sidx.entries =
+ g_malloc (sizeof (GstSidxBoxEntry) * parser->sidx.entries_count);
+ }
+ parser->sidx.entry_index = 0;
+
+ parser->status = GST_ISOFF_SIDX_PARSER_DATA;
+
+ case GST_ISOFF_SIDX_PARSER_DATA:
+ while (parser->sidx.entry_index < parser->sidx.entries_count) {
+ GstSidxBoxEntry *entry =
+ &parser->sidx.entries[parser->sidx.entry_index];
+
+ remaining = gst_byte_reader_get_remaining (&reader);;
+ if (remaining < 12)
+ break;
+
+ entry->offset = parser->cumulative_entry_size;
+ entry->pts = parser->cumulative_pts;
+ gst_isoff_parse_sidx_entry (entry, &reader);
+ entry->duration = gst_util_uint64_scale_int_round (entry->duration,
+ GST_SECOND, parser->sidx.timescale);
+ parser->cumulative_entry_size += entry->size;
+ parser->cumulative_pts += entry->duration;
+
+ GST_LOG ("Sidx entry %d) offset: %" G_GUINT64_FORMAT ", pts: %"
+ GST_TIME_FORMAT ", duration %" GST_TIME_FORMAT " - size %"
+ G_GUINT32_FORMAT, parser->sidx.entry_index, entry->offset,
+ GST_TIME_ARGS (entry->pts), GST_TIME_ARGS (entry->duration),
+ entry->size);
+
+ parser->sidx.entry_index++;
+ }
+
+ if (parser->sidx.entry_index == parser->sidx.entries_count)
+ parser->status = GST_ISOFF_SIDX_PARSER_FINISHED;
+ else
+ break;
+ case GST_ISOFF_SIDX_PARSER_FINISHED:
+ parser->sidx.entry_index = 0;
+ res = GST_ISOFF_PARSER_DONE;
+ break;
+ }
+
+ *consumed = gst_byte_reader_get_pos (&reader);
+ return res;
+}
+
+GstIsoffParserResult
+gst_isoff_sidx_parser_add_buffer (GstSidxParser * parser, GstBuffer * buffer,
+ guint * consumed)
+{
+ GstIsoffParserResult res = GST_ISOFF_PARSER_OK;
+ GstMapInfo info;
+
+ if (!gst_buffer_map (buffer, &info, GST_MAP_READ)) {
+ *consumed = 0;
+ return GST_ISOFF_PARSER_ERROR;
+ }
+
+ res = gst_isoff_sidx_parser_add_data (parser, info.data, info.size, consumed);
+
+ gst_buffer_unmap (buffer, &info);
+ return res;
+}
--- /dev/null
+/*
+ * ISO File Format parsing library
+ *
+ * gstisoff.h
+ *
+ * Copyright (C) 2015 Samsung Electronics. All rights reserved.
+ * Author: Thiago Santos <thiagoss@osg.samsung.com>
+ *
+ * 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 2.1 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 (COPYING); if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __GST_ISOFF_H__
+#define __GST_ISOFF_H__
+
+#include <gst/gst.h>
+
+G_BEGIN_DECLS
+
+typedef enum {
+ GST_ISOFF_PARSER_OK,
+ GST_ISOFF_PARSER_DONE,
+ GST_ISOFF_PARSER_UNEXPECTED,
+ GST_ISOFF_PARSER_ERROR
+} GstIsoffParserResult;
+
+/* this is the minimum size, it can be larger if it
+ * uses extended size or type */
+#define GST_ISOFF_FULL_BOX_SIZE 12
+
+#define GST_ISOFF_FOURCC_SIDX GST_MAKE_FOURCC('s','i','d','x')
+typedef struct _GstSidxBoxEntry
+{
+ gboolean ref_type;
+ guint32 size;
+ GstClockTime duration;
+ gboolean starts_with_sap;
+ guint8 sap_type;
+ guint32 sap_delta_time;
+
+ guint64 offset;
+ GstClockTime pts;
+} GstSidxBoxEntry;
+
+typedef struct _GstSidxBox
+{
+ guint8 version;
+ guint32 flags;
+
+ guint32 ref_id;
+ guint32 timescale;
+ guint64 earliest_pts;
+ guint64 first_offset;
+
+ gint entry_index;
+ gint entries_count;
+
+ GstSidxBoxEntry *entries;
+} GstSidxBox;
+
+typedef enum _GstSidxParserStatus
+{
+ GST_ISOFF_SIDX_PARSER_INIT,
+ GST_ISOFF_SIDX_PARSER_HEADER,
+ GST_ISOFF_SIDX_PARSER_DATA,
+ GST_ISOFF_SIDX_PARSER_FINISHED
+} GstSidxParserStatus;
+
+typedef struct _GstSidxParser
+{
+ GstSidxParserStatus status;
+
+ guint64 size;
+ guint64 cumulative_entry_size;
+ guint64 cumulative_pts;
+
+ GstSidxBox sidx;
+} GstSidxParser;
+
+void gst_isoff_sidx_parser_init (GstSidxParser * parser);
+void gst_isoff_sidx_parser_clear (GstSidxParser * parser);
+GstIsoffParserResult gst_isoff_sidx_parser_add_data (GstSidxParser * parser, const guint8 * buffer, gint length, guint * consumed);
+GstIsoffParserResult gst_isoff_sidx_parser_add_buffer (GstSidxParser * parser, GstBuffer * buf, guint * consumed);
+
+G_END_DECLS
+
+#endif /* __GST_ISOFF_H__ */
+
QtDemuxStream * stream);
static gboolean qtdemux_pull_mfro_mfra (GstQTDemux * qtdemux);
+static void check_update_duration (GstQTDemux * qtdemux, GstClockTime duration);
static void
gst_qtdemux_class_init (GstQTDemuxClass * klass)
}
}
+static void
+qtdemux_parse_sidx (GstQTDemux * qtdemux, const guint8 * buffer, gint length)
+{
+ GstSidxParser sidx_parser;
+ GstIsoffParserResult res;
+ guint consumed;
+
+ gst_isoff_sidx_parser_init (&sidx_parser);
+
+ res =
+ gst_isoff_sidx_parser_add_data (&sidx_parser, buffer, length, &consumed);
+ GST_DEBUG_OBJECT (qtdemux, "sidx parse result: %d", res);
+ if (res == GST_ISOFF_PARSER_DONE) {
+ check_update_duration (qtdemux, sidx_parser.cumulative_pts);
+ }
+ gst_isoff_sidx_parser_clear (&sidx_parser);
+}
+
/* caller verifies at least 8 bytes in buf */
static void
extract_initial_length_and_fourcc (const guint8 * data, guint size,
gst_buffer_unref (uuid);
break;
}
+ case FOURCC_sidx:
+ {
+ GstBuffer *sidx = NULL;
+ ret = gst_qtdemux_pull_atom (qtdemux, cur_offset, length, &sidx);
+ if (ret != GST_FLOW_OK)
+ goto beach;
+ qtdemux->offset += length;
+ gst_buffer_map (sidx, &map, GST_MAP_READ);
+ qtdemux_parse_sidx (qtdemux, map.data, map.size);
+ gst_buffer_unmap (sidx, &map);
+ gst_buffer_unref (sidx);
+ break;
+ }
default:
{
GstBuffer *unknown = NULL;
} else if (fourcc == FOURCC_uuid) {
GST_DEBUG_OBJECT (demux, "Parsing [uuid]");
qtdemux_parse_uuid (demux, data, demux->neededbytes);
+ } else if (fourcc == FOURCC_sidx) {
+ GST_DEBUG_OBJECT (demux, "Parsing [sidx]");
+ qtdemux_parse_sidx (demux, data, demux->neededbytes);
} else {
GST_WARNING_OBJECT (demux,
"Unknown fourcc while parsing header : %" GST_FOURCC_FORMAT,
projects / platform / upstream / gst-plugins-good.git / commitdiff