--- /dev/null
+
+plugin_LTLIBRARIES = libgstwavpack.la
+
+libgstwavpack_la_SOURCES = gstwavpack.c \
+ gstwavpackcommon.c \
+ gstwavpackparse.c \
+ gstwavpackdec.c
+
+libgstwavpack_la_CFLAGS = $(GST_CFLAGS) $(WAVPACK_CFLAGS)
+libgstwavpack_la_LIBADD = $(WAVPACK_LIBS)
+libgstwavpack_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
+
+noinst_HEADERS = gstwavpackparse.h gstwavpackdec.h gstwavpackcommon.h
--- /dev/null
+/* GStreamer wavpack plugin
+ * (c) 2004 Arwed v. Merkatz <v.merkatz@gmx.net>
+ *
+ * gstwavpack.c: plugin loader
+ *
+ * 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "gstwavpackparse.h"
+#include "gstwavpackdec.h"
+
+static gboolean
+plugin_init (GstPlugin * plugin)
+{
+ return (gst_wavpack_parse_plugin_init (plugin)
+ && gst_wavpack_dec_plugin_init (plugin));
+}
+
+GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
+ GST_VERSION_MINOR,
+ "wavpack",
+ "Wavpack lossless/lossy audio format handling",
+ plugin_init, VERSION, "LGPL", "gst-wavpack", "http://www.wavpack.com")
--- /dev/null
+#include "gstwavpackcommon.h"
+#include <string.h>
+
+gboolean
+gst_wavpack_read_header (WavpackHeader * header, guint8 * buf)
+{
+ g_memmove (header, buf, sizeof (WavpackHeader));
+ little_endian_to_native (header, WavpackHeaderFormat);
+
+ if (strncmp (header->ckID, "wvpk", 4))
+ return FALSE;
+ else
+ return TRUE;
+}
--- /dev/null
+#include <gst/gst.h>
+#include <wavpack/wavpack.h>
+
+gboolean gst_wavpack_read_header (WavpackHeader *header, guint8 *buf);
--- /dev/null
+/* GStreamer Wavpack plugin
+ * (c) 2005 Arwed v. Merkatz <v.merkatz@gmx.net>
+ *
+ * gstwavpackdec.c: raw Wavpack bitstream decoder
+ *
+ * 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.
+ */
+
+#include <gst/gst.h>
+
+#include <math.h>
+#include <string.h>
+
+#include <wavpack/wavpack.h>
+#include "gstwavpackdec.h"
+#include "gstwavpackcommon.h"
+
+/* Filter signals and args */
+enum
+{
+ LAST_SIGNAL
+};
+
+enum
+{
+ ARG_0
+};
+
+static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
+ GST_PAD_SINK,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS ("audio/x-wavpack, "
+ "width = (int) { 8, 16, 24, 32 }, "
+ "channels = (int) { 1, 2 }, "
+ "rate = (int) [ 8000, 96000 ], " "framed = (boolean) true")
+ );
+
+static GstStaticPadTemplate wvc_sink_factory =
+GST_STATIC_PAD_TEMPLATE ("wvcsink",
+ GST_PAD_SINK,
+ GST_PAD_REQUEST,
+ GST_STATIC_CAPS ("audio/x-wavpack-correction, " "framed = (boolean) true")
+ );
+
+static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
+ GST_PAD_SRC,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS ("audio/x-raw-int, "
+ "width = (int) { 8, 16, 24 }, "
+ "depth = (int) { 8, 16, 24 }, "
+ "channels = (int) { 1, 2 }, "
+ "rate = (int) [ 8000, 96000 ], "
+ "endianness = (int) LITTLE_ENDIAN, "
+ "signed = (boolean) true;"
+ "audio/x-raw-float, "
+ "width = (int) 32, "
+ "channels = (int) { 1, 2 }, "
+ "rate = (int) [ 8000, 96000 ], "
+ "endianness = (int) LITTLE_ENDIAN, " "buffer-frames = (int) 0")
+ );
+
+static void gst_wavpack_dec_class_init (GstWavpackDecClass * klass);
+static void gst_wavpack_dec_base_init (GstWavpackDecClass * klass);
+static void gst_wavpack_dec_init (GstWavpackDec * wavpackdec);
+
+static void gst_wavpack_dec_loop (GstElement * element);
+
+static GstElementClass *parent = NULL;
+
+static GstPadLinkReturn
+gst_wavpack_dec_link (GstPad * pad, const GstCaps * caps)
+{
+ GstWavpackDec *wavpackdec = GST_WAVPACK_DEC (gst_pad_get_parent (pad));
+ GstStructure *structure = gst_caps_get_structure (caps, 0);
+ GstCaps *srccaps;
+ gint bits;
+
+ if (!gst_caps_is_fixed (caps))
+ return GST_PAD_LINK_DELAYED;
+
+ gst_structure_get_int (structure, "rate",
+ (gint32 *) & wavpackdec->samplerate);
+ gst_structure_get_int (structure, "channels",
+ (gint *) & wavpackdec->channels);
+ gst_structure_get_int (structure, "width", &bits);
+ wavpackdec->width = bits;
+
+ if (bits != 32) {
+ srccaps = gst_caps_new_simple ("audio/x-raw-int",
+ "rate", G_TYPE_INT, wavpackdec->samplerate,
+ "channels", G_TYPE_INT, wavpackdec->channels,
+ "depth", G_TYPE_INT, bits,
+ "width", G_TYPE_INT, bits,
+ "endianness", G_TYPE_INT, LITTLE_ENDIAN,
+ "signed", G_TYPE_BOOLEAN, TRUE, NULL);
+ } else {
+ srccaps = gst_caps_new_simple ("audio/x-raw-float",
+ "rate", G_TYPE_INT, wavpackdec->samplerate,
+ "channels", G_TYPE_INT, wavpackdec->channels,
+ "width", G_TYPE_INT, 32,
+ "endianness", G_TYPE_INT, LITTLE_ENDIAN,
+ "buffer-frames", G_TYPE_INT, 0, NULL);
+ }
+
+ gst_pad_set_explicit_caps (wavpackdec->srcpad, srccaps);
+
+ // blocks are usually 0.5 seconds long, assume that's always the case for now
+ wavpackdec->decodebuf =
+ (int32_t *) g_malloc ((wavpackdec->samplerate / 2) *
+ wavpackdec->channels * sizeof (int32_t));
+ return GST_PAD_LINK_OK;
+}
+
+static GstPadLinkReturn
+gst_wavpack_dec_wvclink (GstPad * pad, const GstCaps * caps)
+{
+ if (!gst_caps_is_fixed (caps))
+ return GST_PAD_LINK_DELAYED;
+
+ return GST_PAD_LINK_OK;
+}
+
+GType
+gst_wavpack_dec_get_type (void)
+{
+ static GType plugin_type = 0;
+
+ if (!plugin_type) {
+ static const GTypeInfo plugin_info = {
+ sizeof (GstWavpackDecClass),
+ (GBaseInitFunc) gst_wavpack_dec_base_init,
+ NULL,
+ (GClassInitFunc) gst_wavpack_dec_class_init,
+ NULL,
+ NULL,
+ sizeof (GstWavpackDec),
+ 0,
+ (GInstanceInitFunc) gst_wavpack_dec_init,
+ };
+ plugin_type = g_type_register_static (GST_TYPE_ELEMENT,
+ "GstWavpackDec", &plugin_info, 0);
+ }
+ return plugin_type;
+}
+
+static void
+gst_wavpack_dec_base_init (GstWavpackDecClass * klass)
+{
+ static GstElementDetails plugin_details = {
+ "WAVPACK decoder",
+ "Codec/Decoder/Audio",
+ "Decode Wavpack audio data",
+ "Arwed v. Merkatz <v.merkatz@gmx.net>"
+ };
+ GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
+
+ 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_add_pad_template (element_class,
+ gst_static_pad_template_get (&wvc_sink_factory));
+ gst_element_class_set_details (element_class, &plugin_details);
+}
+
+static void
+gst_wavpack_dec_dispose (GObject * object)
+{
+ GstWavpackDec *wavpackdec = GST_WAVPACK_DEC (object);
+
+ g_free (wavpackdec->decodebuf);
+
+ G_OBJECT_CLASS (parent)->dispose (object);
+}
+
+static void
+gst_wavpack_dec_class_init (GstWavpackDecClass * klass)
+{
+ GObjectClass *gobject_class;
+ GstElementClass *gstelement_class;
+
+ gobject_class = (GObjectClass *) klass;
+ gstelement_class = (GstElementClass *) klass;
+
+ parent = g_type_class_ref (GST_TYPE_ELEMENT);
+
+ gobject_class->dispose = gst_wavpack_dec_dispose;
+}
+
+static gboolean
+gst_wavpack_dec_src_query (GstPad * pad, GstQueryType type,
+ GstFormat * format, gint64 * value)
+{
+ return gst_pad_query_default (pad, type, format, value);
+}
+
+static void
+gst_wavpack_dec_init (GstWavpackDec * wavpackdec)
+{
+ GstElementClass *klass = GST_ELEMENT_GET_CLASS (wavpackdec);
+
+ wavpackdec->sinkpad =
+ gst_pad_new_from_template (gst_element_class_get_pad_template (klass,
+ "sink"), "sink");
+ gst_pad_set_link_function (wavpackdec->sinkpad, gst_wavpack_dec_link);
+
+ wavpackdec->wvcsinkpad =
+ gst_pad_new_from_template (gst_element_class_get_pad_template (klass,
+ "wvcsink"), "wvcsink");
+ gst_pad_set_link_function (wavpackdec->wvcsinkpad, gst_wavpack_dec_wvclink);
+
+ wavpackdec->srcpad =
+ gst_pad_new_from_template (gst_element_class_get_pad_template (klass,
+ "src"), "src");
+ gst_pad_use_explicit_caps (wavpackdec->srcpad);
+
+ gst_pad_set_query_function (wavpackdec->srcpad, gst_wavpack_dec_src_query);
+
+ gst_element_add_pad (GST_ELEMENT (wavpackdec), wavpackdec->sinkpad);
+ gst_element_add_pad (GST_ELEMENT (wavpackdec), wavpackdec->srcpad);
+ gst_element_add_pad (GST_ELEMENT (wavpackdec), wavpackdec->wvcsinkpad);
+ gst_element_set_loop_function (GST_ELEMENT (wavpackdec),
+ gst_wavpack_dec_loop);
+
+ wavpackdec->decodebuf = NULL;
+ wavpackdec->stream = (WavpackStream *) g_malloc0 (sizeof (WavpackStream));
+ wavpackdec->context = (WavpackContext *) g_malloc0 (sizeof (WavpackContext));
+}
+
+static void
+gst_wavpack_dec_setup_context (GstWavpackDec * wavpackdec, guchar * data,
+ guchar * cdata)
+{
+ WavpackContext *context = wavpackdec->context;
+ WavpackStream *stream = wavpackdec->stream;
+
+ memset (context, 0, sizeof (context));
+
+ context->open_flags = 0;
+ context->current_stream = 0;
+ context->num_streams = 1;
+
+ memset (stream, 0, sizeof (stream));
+ context->streams[0] = stream;
+
+ gst_wavpack_read_header (&stream->wphdr, data);
+ stream->blockbuff = data;
+
+ if (cdata) {
+ context->wvc_flag = TRUE;
+ gst_wavpack_read_header (&stream->wphdr, cdata);
+ stream->block2buff = cdata;
+ } else {
+ context->wvc_flag = FALSE;
+ }
+
+ unpack_init (context);
+}
+
+static GstBuffer *
+gst_wavpack_dec_format_samples (GstWavpackDec * wavpackdec, int32_t * samples,
+ guint num_samples)
+{
+ GstBuffer *buf;
+ gint i;
+ guint8 *dst;
+ int32_t temp;
+
+ buf =
+ gst_buffer_new_and_alloc (num_samples * wavpackdec->width / 8 *
+ wavpackdec->channels);
+ dst = (guint8 *) GST_BUFFER_DATA (buf);
+
+ switch (wavpackdec->width) {
+ case 8:
+ for (i = 0; i < num_samples * wavpackdec->channels; ++i)
+ *dst++ = *samples++ + 128;
+ break;
+ case 16:
+ for (i = 0; i < num_samples * wavpackdec->channels; ++i) {
+ *dst++ = (guint8) (temp = *samples++);
+ *dst++ = (guint8) (temp >> 8);
+ }
+ break;
+ case 24:
+ for (i = 0; i < num_samples * wavpackdec->channels; ++i) {
+ *dst++ = (guint8) (temp = *samples++);
+ *dst++ = (guint8) (temp >> 8);
+ *dst++ = (guint8) (temp >> 16);
+ }
+ break;
+ case 32:
+ for (i = 0; i < num_samples * wavpackdec->channels; ++i) {
+ *dst++ = (guint8) (temp = *samples++);
+ *dst++ = (guint8) (temp >> 8);
+ *dst++ = (guint8) (temp >> 16);
+ *dst++ = (guint8) (temp >> 24);
+ }
+ break;
+ default:
+ break;
+ }
+
+ return buf;
+}
+
+
+static void
+gst_wavpack_dec_loop (GstElement * element)
+{
+ GstWavpackDec *wavpackdec = GST_WAVPACK_DEC (element);
+ GstData *data, *cdata = NULL;
+ GstBuffer *buf, *outbuf, *cbuf = NULL;
+
+ gboolean got_event = FALSE;
+
+ if (!gst_pad_is_linked (wavpackdec->sinkpad)) {
+ return;
+ }
+
+ /*
+ if (!gst_pad_is_linked (wavpackdec->wvcsinkpad)) {
+ return;
+ }
+ */
+
+ data = gst_pad_pull (wavpackdec->sinkpad);
+
+ if (GST_IS_EVENT (data)) {
+ GstEvent *event = GST_EVENT (data);
+
+ switch (GST_EVENT_TYPE (event)) {
+ case GST_EVENT_EOS:
+ gst_event_unref (event);
+ gst_pad_push (wavpackdec->srcpad,
+ GST_DATA (gst_event_new (GST_EVENT_EOS)));
+ gst_element_set_eos (element);
+ break;
+ default:
+ gst_pad_event_default (wavpackdec->srcpad, event);
+ break;
+ }
+ got_event = TRUE;
+ }
+
+ if (gst_pad_is_linked (wavpackdec->wvcsinkpad)) {
+ cdata = gst_pad_pull (wavpackdec->wvcsinkpad);
+ if (GST_IS_EVENT (cdata)) {
+ GstEvent *event = GST_EVENT (cdata);
+
+ switch (GST_EVENT_TYPE (event)) {
+ case GST_EVENT_EOS:
+ gst_event_unref (event);
+ gst_pad_push (wavpackdec->srcpad,
+ GST_DATA (gst_event_new (GST_EVENT_EOS)));
+ gst_element_set_eos (element);
+ break;
+ default:
+ gst_pad_event_default (wavpackdec->srcpad, event);
+ break;
+ }
+ got_event = TRUE;
+ } else {
+ cbuf = GST_BUFFER (cdata);
+ }
+ }
+
+ if (got_event)
+ return;
+
+ buf = GST_BUFFER (data);
+
+ gst_wavpack_dec_setup_context (wavpackdec, GST_BUFFER_DATA (buf),
+ cbuf ? GST_BUFFER_DATA (cbuf) : NULL);
+ unpack_samples (wavpackdec->context, wavpackdec->decodebuf,
+ wavpackdec->context->streams[0]->wphdr.block_samples);
+ outbuf =
+ gst_wavpack_dec_format_samples (wavpackdec, wavpackdec->decodebuf,
+ wavpackdec->context->streams[0]->wphdr.block_samples);
+
+ GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (buf);
+ GST_BUFFER_DURATION (outbuf) = GST_BUFFER_DURATION (buf);
+ gst_buffer_unref (buf);
+
+ gst_pad_push (wavpackdec->srcpad, GST_DATA (outbuf));
+}
+
+gboolean
+gst_wavpack_dec_plugin_init (GstPlugin * plugin)
+{
+ return gst_element_register (plugin, "wavpackdec",
+ GST_RANK_PRIMARY, GST_TYPE_WAVPACK_DEC);
+}
--- /dev/null
+/* GStreamer Wavpack plugin
+ * (c) 2004 Arwed v. Merkatz <v.merkatz@gmx.net>
+ *
+ * gstwavpackdec.h: raw Wavpack bitstream decoder
+ *
+ * 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_WAVPACK_DEC_H__
+#define __GST_WAVPACK_DEC_H__
+
+#include <gst/gst.h>
+
+#include <wavpack/wavpack.h>
+
+G_BEGIN_DECLS
+
+/* #define's don't like whitespacey bits */
+#define GST_TYPE_WAVPACK_DEC \
+ (gst_wavpack_dec_get_type())
+#define GST_WAVPACK_DEC(obj) \
+ (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_WAVPACK_DEC,GstWavpackDec))
+#define GST_WAVPACK_DEC_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_WAVPACK_DEC,GstWavpackDec))
+#define GST_IS_WAVPACK_DEC(obj) \
+ (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_WAVPACK_DEC))
+#define GST_IS_WAVPACK_DEC_CLASS(obj) \
+ (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_WAVPACK_DEC))
+
+typedef struct _GstWavpackDec GstWavpackDec;
+typedef struct _GstWavpackDecClass GstWavpackDecClass;
+
+struct _GstWavpackDec
+{
+ GstElement element;
+
+ GstPad *sinkpad, *srcpad;
+ GstPad *wvcsinkpad;
+
+ WavpackContext *context;
+
+ int32_t *decodebuf;
+
+ WavpackStream *stream;
+
+ guint32 samplerate;
+ guint channels;
+ guint width;
+ long frame_length;
+
+ guchar *decdata;
+ long *cache;
+};
+
+struct _GstWavpackDecClass
+{
+ GstElementClass parent;
+};
+
+GType gst_wavpack_dec_get_type (void);
+
+gboolean gst_wavpack_dec_plugin_init (GstPlugin *plugin);
+
+G_END_DECLS
+
+#endif /* __GST_WAVPACK_DEC_H__ */
--- /dev/null
+/* GStreamer wavpack plugin
+ * (c) 2005 Arwed v. Merkatz <v.merkatz@gmx.net>
+ *
+ * gstwavpackparse.c: wavpack file parser
+ *
+ * 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.
+ */
+
+#include <gst/gst.h>
+
+#include <math.h>
+#include <string.h>
+
+#include <wavpack/wavpack.h>
+#include "gstwavpackparse.h"
+#include "gstwavpackcommon.h"
+
+GST_DEBUG_CATEGORY_STATIC (gst_wavpack_parse_debug);
+#define GST_CAT_DEFAULT gst_wavpack_parse_debug
+
+/* Filter signals and args */
+enum
+{
+ LAST_SIGNAL
+};
+
+enum
+{
+ ARG_0
+};
+
+static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
+ GST_PAD_SINK,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS ("audio/x-wavpack, "
+ "framed = (boolean) false; "
+ "audio/x-wavpack-correction, " "framed = (boolean) false")
+ );
+
+static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
+ GST_PAD_SRC,
+ GST_PAD_SOMETIMES,
+ GST_STATIC_CAPS ("audio/x-wavpack, "
+ "width = (int) { 8, 16, 24 }, "
+ "channels = (int) { 1, 2 }, "
+ "rate = (int) [ 8000, 96000 ], " "framed = (boolean) true")
+ );
+
+static GstStaticPadTemplate wvc_src_factory = GST_STATIC_PAD_TEMPLATE ("wvcsrc",
+ GST_PAD_SRC,
+ GST_PAD_SOMETIMES,
+ GST_STATIC_CAPS ("audio/x-wavpack-correction, " "framed = (boolean) true")
+ );
+
+static void gst_wavpack_parse_class_init (GstWavpackParseClass * klass);
+static void gst_wavpack_parse_base_init (GstWavpackParseClass * klass);
+static void gst_wavpack_parse_init (GstWavpackParse * wavpackparse);
+
+static void gst_wavpack_parse_handle_event (GstElement * element);
+static void gst_wavpack_parse_loop (GstElement * element);
+static GstElementStateReturn gst_wavpack_parse_change_state (GstElement *
+ element);
+
+static GstElementClass *parent = NULL;
+
+GType
+gst_wavpack_parse_get_type (void)
+{
+ static GType plugin_type = 0;
+
+ if (!plugin_type) {
+ static const GTypeInfo plugin_info = {
+ sizeof (GstWavpackParseClass),
+ (GBaseInitFunc) gst_wavpack_parse_base_init,
+ NULL,
+ (GClassInitFunc) gst_wavpack_parse_class_init,
+ NULL,
+ NULL,
+ sizeof (GstWavpackParse),
+ 0,
+ (GInstanceInitFunc) gst_wavpack_parse_init,
+ };
+ plugin_type = g_type_register_static (GST_TYPE_ELEMENT,
+ "GstWavpackParse", &plugin_info, 0);
+ }
+ return plugin_type;
+}
+
+static void
+gst_wavpack_parse_base_init (GstWavpackParseClass * klass)
+{
+ static GstElementDetails plugin_details = {
+ "Wavpack file parser",
+ "Codec/Demuxer/Audio",
+ "Parses Wavpack files",
+ "Arwed v. Merkatz <v.merkatz@gmx.net>"
+ };
+ GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
+
+ 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 (&wvc_src_factory));
+ gst_element_class_add_pad_template (element_class,
+ gst_static_pad_template_get (&sink_factory));
+ gst_element_class_set_details (element_class, &plugin_details);
+}
+
+static void
+gst_wavpack_parse_dispose (GObject * object)
+{
+ G_OBJECT_CLASS (parent)->dispose (object);
+}
+
+static void
+gst_wavpack_parse_class_init (GstWavpackParseClass * klass)
+{
+ GObjectClass *gobject_class;
+ GstElementClass *gstelement_class;
+
+ gobject_class = (GObjectClass *) klass;
+ gstelement_class = (GstElementClass *) klass;
+
+ parent = g_type_class_ref (GST_TYPE_ELEMENT);
+
+ gobject_class->dispose = gst_wavpack_parse_dispose;
+ gstelement_class->change_state = gst_wavpack_parse_change_state;
+}
+
+static gboolean
+gst_wavpack_parse_src_query (GstPad * pad, GstQueryType type,
+ GstFormat * format, gint64 * value)
+{
+ GstWavpackParse *wavpackparse = GST_WAVPACK_PARSE (gst_pad_get_parent (pad));
+
+ if ((type == GST_QUERY_TOTAL) && (*format == GST_FORMAT_TIME)) {
+ if (wavpackparse->total_samples == 0) {
+ *value = 0;
+ return FALSE;
+ }
+ *value =
+ ((gdouble) wavpackparse->total_samples /
+ (gdouble) wavpackparse->samplerate) * GST_SECOND;
+ return TRUE;
+ } else if ((type == GST_QUERY_POSITION) && (*format == GST_FORMAT_TIME)) {
+ *value = wavpackparse->timestamp;
+ return TRUE;
+ } else {
+ return gst_pad_query_default (pad, type, format, value);
+ }
+ return FALSE;
+}
+
+static gboolean
+gst_wavpack_parse_src_event (GstPad * pad, GstEvent * event)
+{
+ GstWavpackParse *wavpackparse;
+ GstSeekType method;
+ GstFormat format;
+ gboolean need_flush;
+ gint64 offset, dest;
+
+ wavpackparse = GST_WAVPACK_PARSE (gst_pad_get_parent (pad));
+
+ if (GST_EVENT_TYPE (event) != GST_EVENT_SEEK) {
+ return gst_pad_send_event (GST_PAD_PEER (wavpackparse->sinkpad), event);
+ }
+
+ format = GST_EVENT_SEEK_FORMAT (event);
+ offset = GST_EVENT_SEEK_OFFSET (event);
+ method = GST_EVENT_SEEK_METHOD (event);
+ need_flush = GST_EVENT_SEEK_FLAGS (event) & GST_SEEK_FLAG_FLUSH;
+
+ gst_data_unref (GST_DATA (event));
+ event = NULL;
+
+ if (offset < 0 || method != GST_SEEK_METHOD_SET)
+ return FALSE;
+
+ if (format == GST_FORMAT_TIME) {
+ dest = offset * wavpackparse->samplerate / GST_SECOND;
+ } else if (format == GST_FORMAT_DEFAULT) {
+ dest = offset;
+ } else {
+ return FALSE;
+ }
+
+ wavpackparse->need_discont = TRUE;
+ wavpackparse->need_flush = need_flush;
+
+ wavpackparse->seek_pending = TRUE;
+ wavpackparse->seek_offset = dest;
+
+ return TRUE;
+}
+
+#define BUFSIZE 4096
+
+static guint64
+find_header (GstByteStream * bs, guint64 filepos, WavpackHeader * wphdr)
+{
+ guint64 pos = filepos;
+
+ gst_bytestream_seek (bs, filepos, GST_SEEK_METHOD_SET);
+
+ while (1) {
+ guint8 *data, *cur;
+ gint read;
+
+ read = gst_bytestream_peek_bytes (bs, &data, BUFSIZE);
+ while (read != BUFSIZE) {
+ guint remaining;
+ GstEvent *event = NULL;
+
+ gst_bytestream_get_status (bs, &remaining, &event);
+ if (GST_EVENT_TYPE (event) == GST_EVENT_EOS) {
+ gst_event_unref (event);
+ return gst_bytestream_length (bs);
+ }
+ gst_event_unref (event);
+ read = gst_bytestream_peek_bytes (bs, &data, BUFSIZE);
+ continue;
+ }
+ cur = data;
+ do {
+ if (cur[0] == 'w' && cur[1] == 'v' && cur[2] == 'p' && cur[3] == 'k') {
+ gst_wavpack_read_header (wphdr, cur);
+ return pos + (cur - data);
+ }
+ cur++;
+ } while ((cur - data) < (BUFSIZE - sizeof (WavpackHeader)));
+ gst_bytestream_flush_fast (bs, BUFSIZE - sizeof (WavpackHeader));
+ pos += BUFSIZE - sizeof (WavpackHeader);
+ }
+
+ /* never reached */
+ return gst_bytestream_length (bs);
+}
+
+/* find the position of sample in the input bytestream, adapted from the
+ * original wavpack find_sample function */
+static guint64
+find_sample (GstWavpackParse * wavpackparse, guint32 sample)
+{
+ WavpackHeader wphdr;
+ guint64 file_pos1 = 0, file_pos2 = gst_bytestream_length (wavpackparse->bs);
+ guint64 sample_pos1 = 0, sample_pos2 = wavpackparse->total_samples;
+ double ratio = 0.96;
+ int file_skip = 0;
+
+ if (sample >= wavpackparse->total_samples) {
+ return gst_bytestream_length (wavpackparse->bs);
+ }
+
+ while (1) {
+ double bytes_per_sample;
+ guint64 seek_pos;
+
+ bytes_per_sample = file_pos2 - file_pos1;
+ bytes_per_sample /= sample_pos2 - sample_pos1;
+ seek_pos = file_pos1 + (file_skip ? 32 : 0);
+ seek_pos += (guint64) (bytes_per_sample * (sample - sample_pos1) * ratio);
+ seek_pos = find_header (wavpackparse->bs, seek_pos, &wphdr);
+
+ if (seek_pos == gst_bytestream_length (wavpackparse->bs)
+ || seek_pos >= file_pos2) {
+ if (ratio > 0.0) {
+ if ((ratio -= 0.24) < 0.0)
+ ratio = 0.0;
+ } else {
+ return gst_bytestream_length (wavpackparse->bs);
+ }
+ } else if (wphdr.block_index > sample) {
+ sample_pos2 = wphdr.block_index;
+ file_pos2 = seek_pos;
+ } else if (wphdr.block_index + wphdr.block_samples <= sample) {
+ if (seek_pos == file_pos1)
+ file_skip = 1;
+ else {
+ sample_pos1 = wphdr.block_index;
+ file_pos1 = seek_pos;
+ }
+ } else {
+ return seek_pos;
+ }
+ }
+}
+
+
+static void
+gst_wavpack_parse_seek (GstWavpackParse * wavpackparse)
+{
+ guint8 *data;
+ gint num;
+ guint remaining;
+ WavpackHeader *header = g_malloc (sizeof (WavpackHeader));
+
+ guint64 offset = find_sample (wavpackparse, wavpackparse->seek_offset);
+
+ gst_bytestream_seek (wavpackparse->bs, offset, GST_SEEK_METHOD_SET);
+
+ if (offset == gst_bytestream_length (wavpackparse->bs)) {
+ /* seek failed or went beyond the end, go EOS */
+ wavpackparse->timestamp =
+ ((gdouble) wavpackparse->total_samples /
+ (gdouble) wavpackparse->samplerate) * GST_SECOND;
+ return;
+ }
+
+ num =
+ gst_bytestream_peek_bytes (wavpackparse->bs, &data,
+ sizeof (WavpackHeader));
+ while (num != sizeof (WavpackHeader)) {
+ GstEvent *event = NULL;
+
+ gst_bytestream_get_status (wavpackparse->bs, &remaining, &event);
+ if (!event) {
+ return;
+ }
+ gst_event_unref (event);
+ num =
+ gst_bytestream_peek_bytes (wavpackparse->bs, &data,
+ sizeof (WavpackHeader));
+ continue;
+ }
+ gst_wavpack_read_header (header, data);
+
+ if (wavpackparse->need_flush) {
+ GstEvent *flush = gst_event_new (GST_EVENT_FLUSH);
+
+ gst_pad_push (wavpackparse->srcpad, GST_DATA (flush));
+ wavpackparse->need_flush = FALSE;
+ }
+
+ wavpackparse->need_discont = TRUE;
+ wavpackparse->timestamp =
+ ((gdouble) header->block_index / (gdouble) wavpackparse->samplerate) *
+ GST_SECOND;
+}
+
+static void
+gst_wavpack_parse_init (GstWavpackParse * wavpackparse)
+{
+ GstElementClass *klass = GST_ELEMENT_GET_CLASS (wavpackparse);
+
+ wavpackparse->sinkpad =
+ gst_pad_new_from_template (gst_element_class_get_pad_template (klass,
+ "sink"), "sink");
+
+ gst_element_add_pad (GST_ELEMENT (wavpackparse), wavpackparse->sinkpad);
+ gst_element_set_loop_function (GST_ELEMENT (wavpackparse),
+ gst_wavpack_parse_loop);
+
+ GST_FLAG_SET (wavpackparse, GST_ELEMENT_EVENT_AWARE);
+}
+
+static void
+gst_wavpack_parse_handle_event (GstElement * element)
+{
+ GstWavpackParse *wavpackparse = GST_WAVPACK_PARSE (element);
+ GstEvent *event = NULL;
+ guint remaining;
+
+ gst_bytestream_get_status (wavpackparse->bs, &remaining, &event);
+ if (event) {
+ if (GST_EVENT_TYPE (event) == GST_EVENT_EOS) {
+ if (GST_IS_PAD (wavpackparse->srcpad)
+ && gst_pad_is_active (wavpackparse->srcpad))
+ gst_pad_push (wavpackparse->srcpad, GST_DATA (event));
+ gst_element_set_eos (element);
+ } else if (GST_EVENT_TYPE (event) == GST_EVENT_DISCONTINUOUS) {
+ if (GST_IS_PAD (wavpackparse->srcpad)
+ && gst_pad_is_active (wavpackparse->srcpad))
+ gst_pad_event_default (wavpackparse->srcpad, event);
+ } else {
+ gst_event_unref (event);
+ }
+ } else {
+ GST_ELEMENT_ERROR (element, STREAM, DEMUX, ("couldn't read wavpack header"),
+ (NULL));
+ }
+}
+
+static void
+gst_wavpack_parse_loop (GstElement * element)
+{
+ GstWavpackParse *wavpackparse = GST_WAVPACK_PARSE (element);
+ guint8 *data;
+ gint num;
+ GstBuffer *buf;
+ WavpackHeader *header = g_malloc (sizeof (WavpackHeader));
+
+ if (wavpackparse->seek_pending) {
+ gst_wavpack_parse_seek (wavpackparse);
+ wavpackparse->need_discont = TRUE;
+ wavpackparse->seek_pending = FALSE;
+ }
+
+ if (wavpackparse->need_discont) {
+ if (GST_IS_PAD (wavpackparse->srcpad)
+ && gst_pad_is_active (wavpackparse->srcpad))
+ gst_pad_push (wavpackparse->srcpad,
+ GST_DATA (gst_event_new_discontinuous (FALSE, GST_FORMAT_TIME,
+ wavpackparse->timestamp, GST_FORMAT_UNDEFINED)));
+ wavpackparse->need_discont = FALSE;
+ }
+
+ num =
+ gst_bytestream_peek_bytes (wavpackparse->bs, &data,
+ sizeof (WavpackHeader));
+ if (num != sizeof (WavpackHeader)) {
+ gst_wavpack_parse_handle_event (element);
+ return;
+ }
+ gst_wavpack_read_header (header, data);
+
+ num = gst_bytestream_peek_bytes (wavpackparse->bs, &data, header->ckSize + 8);
+ if (num != header->ckSize + 8) {
+ gst_wavpack_parse_handle_event (element);
+ return;
+ }
+
+ if (!GST_IS_PAD (wavpackparse->srcpad)) {
+ guchar *bufptr = data + sizeof (WavpackHeader);
+ GstCaps *caps = NULL;
+ WavpackMetadata meta;
+
+ while (read_metadata_buff (&meta, data, &bufptr)) {
+ if (meta.id == ID_WVC_BITSTREAM) {
+ caps = gst_caps_new_simple ("audio/x-wavpack-correction",
+ "framed", G_TYPE_BOOLEAN, TRUE, NULL);
+ wavpackparse->srcpad =
+ gst_pad_new_from_template (gst_element_class_get_pad_template
+ (GST_ELEMENT_GET_CLASS (wavpackparse), "wvcsrc"), "wvcsrc");
+ } else if (meta.id == ID_RIFF_HEADER) {
+ WaveHeader *wheader = g_malloc (sizeof (WaveHeader));
+
+ // skip RiffChunkHeader and ChunkHeader
+ g_memmove (wheader, meta.data + 20, sizeof (WaveHeader));
+ little_endian_to_native (wheader, WaveHeaderFormat);
+ wavpackparse->samplerate = wheader->SampleRate;
+ wavpackparse->channels = wheader->NumChannels;
+ wavpackparse->total_samples = header->total_samples;
+ caps = gst_caps_new_simple ("audio/x-wavpack",
+ "width", G_TYPE_INT, wheader->BitsPerSample,
+ "channels", G_TYPE_INT, wavpackparse->channels,
+ "rate", G_TYPE_INT, wavpackparse->samplerate,
+ "framed", G_TYPE_BOOLEAN, TRUE, NULL);
+ wavpackparse->srcpad =
+ gst_pad_new_from_template (gst_element_class_get_pad_template
+ (GST_ELEMENT_GET_CLASS (wavpackparse), "src"), "src");
+ }
+ }
+ gst_pad_use_explicit_caps (wavpackparse->srcpad);
+ gst_pad_set_query_function (wavpackparse->srcpad,
+ gst_wavpack_parse_src_query);
+ gst_pad_set_event_function (wavpackparse->srcpad,
+ gst_wavpack_parse_src_event);
+ gst_element_add_pad (GST_ELEMENT (wavpackparse), wavpackparse->srcpad);
+
+ gst_pad_set_explicit_caps (wavpackparse->srcpad, caps);
+ }
+
+ buf = gst_buffer_new_and_alloc (header->ckSize + 8);
+ memcpy (GST_BUFFER_DATA (buf), data, header->ckSize + 8);
+ gst_bytestream_flush_fast (wavpackparse->bs, header->ckSize + 8);
+ wavpackparse->timestamp =
+ ((gdouble) header->block_index / (gdouble) wavpackparse->samplerate) *
+ GST_SECOND;
+ GST_BUFFER_TIMESTAMP (buf) = wavpackparse->timestamp;
+ GST_BUFFER_DURATION (buf) =
+ ((gdouble) header->block_samples / (gdouble) wavpackparse->samplerate) *
+ GST_SECOND;
+ gst_pad_push (wavpackparse->srcpad, GST_DATA (buf));
+}
+
+static GstElementStateReturn
+gst_wavpack_parse_change_state (GstElement * element)
+{
+ GstWavpackParse *wavpackparse = GST_WAVPACK_PARSE (element);
+
+ switch (GST_STATE_TRANSITION (element)) {
+ case GST_STATE_READY_TO_PAUSED:
+ wavpackparse->need_discont = TRUE;
+ wavpackparse->bs = gst_bytestream_new (wavpackparse->sinkpad);
+ break;
+ case GST_STATE_PAUSED_TO_READY:
+ gst_bytestream_destroy (wavpackparse->bs);
+ wavpackparse->seek_pending = FALSE;
+ break;
+ default:
+ break;
+ }
+
+ if (GST_ELEMENT_CLASS (parent)->change_state)
+ return GST_ELEMENT_CLASS (parent)->change_state (element);
+
+ return GST_STATE_SUCCESS;
+}
+
+gboolean
+gst_wavpack_parse_plugin_init (GstPlugin * plugin)
+{
+ if (!gst_library_load ("gstbytestream"))
+ return FALSE;
+
+ if (!gst_element_register (plugin, "wavpackparse",
+ GST_RANK_PRIMARY, GST_TYPE_WAVPACK_PARSE)) {
+ return FALSE;
+ }
+
+ GST_DEBUG_CATEGORY_INIT (gst_wavpack_parse_debug, "wavpackparse", 0,
+ "wavpack file parser");
+
+ return TRUE;
+}
--- /dev/null
+/* GStreamer wavpack plugin
+ * (c) 2005 Arwed v. Merkatz <v.merkatz@gmx.net>
+ *
+ * gstwavpackparse.h: wavpack file parser
+ *
+ * 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_WAVPACK_PARSE_H__
+#define __GST_WAVPACK_PARSE_H__
+
+#include <gst/gst.h>
+#include <gst/bytestream/bytestream.h>
+
+G_BEGIN_DECLS
+
+/* #define's don't like whitespacey bits */
+#define GST_TYPE_WAVPACK_PARSE \
+ (gst_wavpack_parse_get_type())
+#define GST_WAVPACK_PARSE(obj) \
+ (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_WAVPACK_PARSE,GstWavpackParse))
+#define GST_WAVPACK_PARSE_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_WAVPACK_PARSE,GstWavpackParse))
+#define GST_IS_WAVPACK_PARSE(obj) \
+ (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_WAVPACK_PARSE))
+#define GST_IS_WAVPACK_PARSE_CLASS(obj) \
+ (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_WAVPACK_PARSE))
+
+typedef struct _GstWavpackParse GstWavpackParse;
+typedef struct _GstWavpackParseClass GstWavpackParseClass;
+
+struct _GstWavpackParse
+{
+ GstElement element;
+
+ GstPad *sinkpad, *srcpad;
+
+ GstByteStream* bs;
+
+ guint32 samplerate;
+ guint32 channels;
+ guint32 total_samples;
+ guint64 timestamp;
+
+ guint64 seek_offset;
+ gboolean seek_pending;
+ gboolean need_discont;
+ gboolean need_flush;
+};
+
+struct _GstWavpackParseClass
+{
+ GstElementClass parent;
+};
+
+GType gst_wavpack_parse_get_type (void);
+
+gboolean gst_wavpack_parse_plugin_init (GstPlugin *plugin);
+
+G_END_DECLS
+
+#endif /* __GST_WAVPACK_PARSE_H__ */
projects / platform / upstream / gst-plugins-good.git / commitdiff