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20b31b4153
Original commit message from CVS: 2005-11-22 Andy Wingo <wingo@pobox.com> * ext/ogg/gstoggdemux.c (gst_ogg_pad_submit_packet) (gst_ogg_demux_perform_seek): * ext/theora/theoradec.c (theora_dec_sink_event): * ext/vorbis/vorbisdec.c (vorbis_dec_sink_event): Run update-funcnames.
958 lines
25 KiB
C
958 lines
25 KiB
C
/* GStreamer
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* Copyright (C) 2004 Benjamin Otte <in7y118@public.uni-hamburg.de>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include "vorbisdec.h"
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#include <string.h>
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#include <gst/audio/audio.h>
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#include <gst/tag/tag.h>
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#include <gst/audio/multichannel.h>
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GST_DEBUG_CATEGORY_EXTERN (vorbisdec_debug);
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#define GST_CAT_DEFAULT vorbisdec_debug
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static GstElementDetails vorbis_dec_details = {
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"VorbisDec",
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"Codec/Decoder/Audio",
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"decode raw vorbis streams to float audio",
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"Benjamin Otte <in7y118@public.uni-hamburg.de>",
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};
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/* Filter signals and args */
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enum
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{
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/* FILL ME */
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LAST_SIGNAL
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};
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enum
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{
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ARG_0
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};
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static GstStaticPadTemplate vorbis_dec_src_factory =
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GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("audio/x-raw-float, "
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"rate = (int) [ 8000, 50000 ], "
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"channels = (int) [ 1, 6 ], " "endianness = (int) BYTE_ORDER, "
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/* no ifdef in macros, please
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#ifdef GST_VORBIS_DEC_SEQUENTIAL
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"layout = \"sequential\", "
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#endif
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*/
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"width = (int) 32")
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);
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static GstStaticPadTemplate vorbis_dec_sink_factory =
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GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("audio/x-vorbis")
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);
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GST_BOILERPLATE (GstVorbisDec, gst_vorbis_dec, GstElement, GST_TYPE_ELEMENT);
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static void vorbisdec_finalize (GObject * object);
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static gboolean vorbis_dec_sink_event (GstPad * pad, GstEvent * event);
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static GstFlowReturn vorbis_dec_chain (GstPad * pad, GstBuffer * buffer);
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static GstStateChangeReturn vorbis_dec_change_state (GstElement * element,
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GstStateChange transition);
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#if 0
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static const GstFormat *vorbis_dec_get_formats (GstPad * pad);
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#endif
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static gboolean vorbis_dec_src_event (GstPad * pad, GstEvent * event);
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static gboolean vorbis_dec_src_query (GstPad * pad, GstQuery * query);
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static gboolean vorbis_dec_convert (GstPad * pad,
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GstFormat src_format, gint64 src_value,
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GstFormat * dest_format, gint64 * dest_value);
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static gboolean vorbis_dec_sink_query (GstPad * pad, GstQuery * query);
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static void
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gst_vorbis_dec_base_init (gpointer g_class)
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{
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GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
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GstPadTemplate *src_template, *sink_template;
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src_template = gst_static_pad_template_get (&vorbis_dec_src_factory);
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gst_element_class_add_pad_template (element_class, src_template);
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sink_template = gst_static_pad_template_get (&vorbis_dec_sink_factory);
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gst_element_class_add_pad_template (element_class, sink_template);
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gst_element_class_set_details (element_class, &vorbis_dec_details);
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}
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static void
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gst_vorbis_dec_class_init (GstVorbisDecClass * klass)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass);
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gobject_class->finalize = vorbisdec_finalize;
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gstelement_class->change_state = vorbis_dec_change_state;
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}
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#if 0
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static const GstFormat *
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vorbis_dec_get_formats (GstPad * pad)
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{
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static GstFormat src_formats[] = {
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GST_FORMAT_BYTES,
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GST_FORMAT_DEFAULT, /* samples in the audio case */
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GST_FORMAT_TIME,
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0
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};
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static GstFormat sink_formats[] = {
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/*GST_FORMAT_BYTES, */
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GST_FORMAT_TIME,
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GST_FORMAT_DEFAULT, /* granulepos or samples */
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0
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};
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return (GST_PAD_IS_SRC (pad) ? src_formats : sink_formats);
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}
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#endif
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#if 0
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static const GstEventMask *
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vorbis_get_event_masks (GstPad * pad)
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{
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static const GstEventMask vorbis_dec_src_event_masks[] = {
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{GST_EVENT_SEEK, GST_SEEK_METHOD_SET | GST_SEEK_FLAG_FLUSH},
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{0,}
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};
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return vorbis_dec_src_event_masks;
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}
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#endif
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static const GstQueryType *
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vorbis_get_query_types (GstPad * pad)
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{
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static const GstQueryType vorbis_dec_src_query_types[] = {
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GST_QUERY_POSITION,
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0
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};
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return vorbis_dec_src_query_types;
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}
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static void
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gst_vorbis_dec_init (GstVorbisDec * dec, GstVorbisDecClass * g_class)
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{
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dec->sinkpad = gst_pad_new_from_static_template (&vorbis_dec_sink_factory,
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"sink");
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gst_pad_set_event_function (dec->sinkpad, vorbis_dec_sink_event);
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gst_pad_set_chain_function (dec->sinkpad, vorbis_dec_chain);
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gst_pad_set_query_function (dec->sinkpad, vorbis_dec_sink_query);
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gst_element_add_pad (GST_ELEMENT (dec), dec->sinkpad);
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dec->srcpad = gst_pad_new_from_static_template (&vorbis_dec_src_factory,
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"src");
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gst_pad_set_event_function (dec->srcpad, vorbis_dec_src_event);
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gst_pad_set_query_type_function (dec->srcpad, vorbis_get_query_types);
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gst_pad_set_query_function (dec->srcpad, vorbis_dec_src_query);
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gst_pad_use_fixed_caps (dec->srcpad);
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gst_element_add_pad (GST_ELEMENT (dec), dec->srcpad);
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dec->queued = NULL;
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}
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static void
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vorbisdec_finalize (GObject * object)
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{
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/* Release any possibly allocated libvorbis data.
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* _clear functions can safely be called multiple times
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*/
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GstVorbisDec *vd = GST_VORBIS_DEC (object);
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vorbis_block_clear (&vd->vb);
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vorbis_dsp_clear (&vd->vd);
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vorbis_comment_clear (&vd->vc);
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vorbis_info_clear (&vd->vi);
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static gboolean
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vorbis_dec_convert (GstPad * pad,
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GstFormat src_format, gint64 src_value,
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GstFormat * dest_format, gint64 * dest_value)
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{
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gboolean res = TRUE;
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GstVorbisDec *dec;
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guint64 scale = 1;
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dec = GST_VORBIS_DEC (GST_PAD_PARENT (pad));
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if (dec->packetno < 1)
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return FALSE;
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if (src_format == *dest_format) {
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*dest_value = src_value;
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return TRUE;
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}
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if (dec->sinkpad == pad &&
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(src_format == GST_FORMAT_BYTES || *dest_format == GST_FORMAT_BYTES))
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return FALSE;
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switch (src_format) {
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case GST_FORMAT_TIME:
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switch (*dest_format) {
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case GST_FORMAT_BYTES:
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scale = sizeof (float) * dec->vi.channels;
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case GST_FORMAT_DEFAULT:
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*dest_value = scale * (src_value * dec->vi.rate / GST_SECOND);
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break;
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default:
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res = FALSE;
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}
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break;
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case GST_FORMAT_DEFAULT:
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switch (*dest_format) {
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case GST_FORMAT_BYTES:
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*dest_value = src_value * sizeof (float) * dec->vi.channels;
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break;
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case GST_FORMAT_TIME:
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*dest_value =
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gst_util_uint64_scale (src_value, GST_SECOND, dec->vi.rate);
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break;
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default:
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res = FALSE;
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}
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break;
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case GST_FORMAT_BYTES:
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switch (*dest_format) {
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case GST_FORMAT_DEFAULT:
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*dest_value = src_value / (sizeof (float) * dec->vi.channels);
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break;
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case GST_FORMAT_TIME:
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*dest_value = gst_util_uint64_scale (src_value, GST_SECOND,
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dec->vi.rate * sizeof (float) * dec->vi.channels);
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break;
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default:
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res = FALSE;
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}
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break;
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default:
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res = FALSE;
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}
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return res;
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}
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static gboolean
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vorbis_dec_src_query (GstPad * pad, GstQuery * query)
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{
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gint64 granulepos;
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GstVorbisDec *dec;
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gboolean res;
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dec = GST_VORBIS_DEC (GST_PAD_PARENT (pad));
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switch (GST_QUERY_TYPE (query)) {
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case GST_QUERY_POSITION:
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{
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GstFormat format;
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gint64 value;
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granulepos = dec->granulepos;
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gst_query_parse_position (query, &format, NULL);
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/* and convert to the final format */
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if (!(res =
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vorbis_dec_convert (pad, GST_FORMAT_DEFAULT, granulepos, &format,
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&value)))
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goto error;
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value = (value - dec->segment_start) + dec->segment_time;
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gst_query_set_position (query, format, value);
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GST_LOG_OBJECT (dec,
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"query %u: peer returned granulepos: %llu - we return %llu (format %u)",
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query, granulepos, value, format);
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break;
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}
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case GST_QUERY_DURATION:
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{
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/* query peer for total length */
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if (!(res = gst_pad_query (GST_PAD_PEER (dec->sinkpad), query)))
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goto error;
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break;
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}
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case GST_QUERY_CONVERT:
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{
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GstFormat src_fmt, dest_fmt;
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gint64 src_val, dest_val;
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gst_query_parse_convert (query, &src_fmt, &src_val, &dest_fmt, &dest_val);
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if (!(res =
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vorbis_dec_convert (pad, src_fmt, src_val, &dest_fmt, &dest_val)))
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goto error;
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gst_query_set_convert (query, src_fmt, src_val, dest_fmt, dest_val);
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break;
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}
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default:
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res = FALSE;
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break;
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}
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return res;
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error:
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{
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GST_WARNING_OBJECT (dec, "error handling query");
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return res;
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}
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}
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static gboolean
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vorbis_dec_sink_query (GstPad * pad, GstQuery * query)
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{
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GstVorbisDec *dec;
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gboolean res;
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dec = GST_VORBIS_DEC (GST_PAD_PARENT (pad));
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switch (GST_QUERY_TYPE (query)) {
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case GST_QUERY_CONVERT:
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{
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GstFormat src_fmt, dest_fmt;
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gint64 src_val, dest_val;
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gst_query_parse_convert (query, &src_fmt, &src_val, &dest_fmt, &dest_val);
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if (!(res =
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vorbis_dec_convert (pad, src_fmt, src_val, &dest_fmt, &dest_val)))
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goto error;
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gst_query_set_convert (query, src_fmt, src_val, dest_fmt, dest_val);
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break;
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}
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default:
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res = FALSE;
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break;
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}
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error:
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return res;
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}
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static gboolean
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vorbis_dec_src_event (GstPad * pad, GstEvent * event)
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{
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gboolean res = TRUE;
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GstVorbisDec *dec = GST_VORBIS_DEC (GST_PAD_PARENT (pad));
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switch (GST_EVENT_TYPE (event)) {
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case GST_EVENT_SEEK:{
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GstFormat format, tformat;
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gdouble rate;
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GstEvent *real_seek;
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GstSeekFlags flags;
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GstSeekType cur_type, stop_type;
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gint64 cur, stop;
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gint64 tcur, tstop;
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gst_event_parse_seek (event, &rate, &format, &flags, &cur_type, &cur,
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&stop_type, &stop);
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/* we have to ask our peer to seek to time here as we know
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* nothing about how to generate a granulepos from the src
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* formats or anything.
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*
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* First bring the requested format to time
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*/
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tformat = GST_FORMAT_TIME;
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if (!(res = vorbis_dec_convert (pad, format, cur, &tformat, &tcur)))
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goto error;
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if (!(res = vorbis_dec_convert (pad, format, stop, &tformat, &tstop)))
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goto error;
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/* then seek with time on the peer */
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real_seek = gst_event_new_seek (rate, GST_FORMAT_TIME,
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flags, cur_type, tcur, stop_type, tstop);
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res = gst_pad_push_event (dec->sinkpad, real_seek);
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gst_event_unref (event);
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break;
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}
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default:
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res = gst_pad_event_default (pad, event);
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break;
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}
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return res;
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error:
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gst_event_unref (event);
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return res;
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}
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static gboolean
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vorbis_dec_sink_event (GstPad * pad, GstEvent * event)
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{
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gboolean ret = FALSE;
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GstVorbisDec *dec;
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dec = GST_VORBIS_DEC (gst_pad_get_parent (pad));
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GST_LOG_OBJECT (dec, "handling event");
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switch (GST_EVENT_TYPE (event)) {
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case GST_EVENT_EOS:
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ret = gst_pad_push_event (dec->srcpad, event);
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break;
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case GST_EVENT_NEWSEGMENT:
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{
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GstFormat format;
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gdouble rate;
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gint64 start, stop, time;
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gboolean update;
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gst_event_parse_new_segment (event, &update, &rate, &format, &start,
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&stop, &time);
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if (format != GST_FORMAT_TIME)
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goto newseg_wrong_format;
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if (rate <= 0.0)
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goto newseg_wrong_rate;
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/* now copy over the values */
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dec->segment_rate = rate;
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dec->segment_start = start;
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dec->segment_stop = stop;
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dec->segment_time = time;
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dec->granulepos = -1;
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dec->cur_timestamp = GST_CLOCK_TIME_NONE;
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dec->prev_timestamp = GST_CLOCK_TIME_NONE;
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#ifdef HAVE_VORBIS_SYNTHESIS_RESTART
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vorbis_synthesis_restart (&dec->vd);
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#endif
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ret = gst_pad_push_event (dec->srcpad, event);
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break;
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}
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default:
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ret = gst_pad_push_event (dec->srcpad, event);
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break;
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}
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done:
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gst_object_unref (dec);
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return ret;
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/* ERRORS */
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newseg_wrong_format:
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{
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GST_DEBUG ("received non TIME newsegment");
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goto done;
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}
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newseg_wrong_rate:
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{
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GST_DEBUG ("negative rates not supported yet");
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goto done;
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}
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}
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static GstFlowReturn
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vorbis_handle_identification_packet (GstVorbisDec * vd)
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{
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GstCaps *caps;
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const GstAudioChannelPosition *pos = NULL;
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caps = gst_caps_new_simple ("audio/x-raw-float",
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"rate", G_TYPE_INT, vd->vi.rate,
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"channels", G_TYPE_INT, vd->vi.channels,
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"endianness", G_TYPE_INT, G_BYTE_ORDER, "width", G_TYPE_INT, 32, NULL);
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switch (vd->vi.channels) {
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case 1:
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case 2:
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/* nothing */
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break;
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case 3:{
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static GstAudioChannelPosition pos3[] = {
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GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
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GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER,
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GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT
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};
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pos = pos3;
|
|
break;
|
|
}
|
|
case 4:{
|
|
static GstAudioChannelPosition pos4[] = {
|
|
GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
|
|
GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
|
|
GST_AUDIO_CHANNEL_POSITION_REAR_LEFT,
|
|
GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT
|
|
};
|
|
pos = pos4;
|
|
break;
|
|
}
|
|
case 5:{
|
|
static GstAudioChannelPosition pos5[] = {
|
|
GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
|
|
GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER,
|
|
GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
|
|
GST_AUDIO_CHANNEL_POSITION_REAR_LEFT,
|
|
GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT
|
|
};
|
|
pos = pos5;
|
|
break;
|
|
}
|
|
case 6:{
|
|
static GstAudioChannelPosition pos6[] = {
|
|
GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
|
|
GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER,
|
|
GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
|
|
GST_AUDIO_CHANNEL_POSITION_REAR_LEFT,
|
|
GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT,
|
|
GST_AUDIO_CHANNEL_POSITION_LFE
|
|
};
|
|
pos = pos6;
|
|
break;
|
|
}
|
|
default:
|
|
goto channel_count_error;
|
|
}
|
|
if (pos) {
|
|
gst_audio_set_channel_positions (gst_caps_get_structure (caps, 0), pos);
|
|
}
|
|
gst_pad_set_caps (vd->srcpad, caps);
|
|
gst_caps_unref (caps);
|
|
|
|
return GST_FLOW_OK;
|
|
|
|
/* ERROR */
|
|
channel_count_error:
|
|
{
|
|
gst_caps_unref (caps);
|
|
GST_ELEMENT_ERROR (vd, STREAM, NOT_IMPLEMENTED, (NULL),
|
|
("Unsupported channel count %d", vd->vi.channels));
|
|
return GST_FLOW_ERROR;
|
|
}
|
|
}
|
|
|
|
static GstFlowReturn
|
|
vorbis_handle_comment_packet (GstVorbisDec * vd, ogg_packet * packet)
|
|
{
|
|
guint bitrate = 0;
|
|
gchar *encoder = NULL;
|
|
GstMessage *message;
|
|
GstTagList *list;
|
|
GstBuffer *buf;
|
|
|
|
GST_DEBUG_OBJECT (vd, "parsing comment packet");
|
|
|
|
buf = gst_buffer_new_and_alloc (packet->bytes);
|
|
GST_BUFFER_DATA (buf) = packet->packet;
|
|
|
|
list =
|
|
gst_tag_list_from_vorbiscomment_buffer (buf, (guint8 *) "\003vorbis", 7,
|
|
&encoder);
|
|
|
|
gst_buffer_unref (buf);
|
|
|
|
if (!list) {
|
|
GST_ERROR_OBJECT (vd, "couldn't decode comments");
|
|
list = gst_tag_list_new ();
|
|
}
|
|
if (encoder) {
|
|
gst_tag_list_add (list, GST_TAG_MERGE_REPLACE,
|
|
GST_TAG_ENCODER, encoder, NULL);
|
|
g_free (encoder);
|
|
}
|
|
gst_tag_list_add (list, GST_TAG_MERGE_REPLACE,
|
|
GST_TAG_ENCODER_VERSION, vd->vi.version,
|
|
GST_TAG_AUDIO_CODEC, "Vorbis", NULL);
|
|
if (vd->vi.bitrate_nominal > 0) {
|
|
gst_tag_list_add (list, GST_TAG_MERGE_REPLACE,
|
|
GST_TAG_NOMINAL_BITRATE, (guint) vd->vi.bitrate_nominal, NULL);
|
|
bitrate = vd->vi.bitrate_nominal;
|
|
}
|
|
if (vd->vi.bitrate_upper > 0) {
|
|
gst_tag_list_add (list, GST_TAG_MERGE_REPLACE,
|
|
GST_TAG_MAXIMUM_BITRATE, (guint) vd->vi.bitrate_upper, NULL);
|
|
if (!bitrate)
|
|
bitrate = vd->vi.bitrate_upper;
|
|
}
|
|
if (vd->vi.bitrate_lower > 0) {
|
|
gst_tag_list_add (list, GST_TAG_MERGE_REPLACE,
|
|
GST_TAG_MINIMUM_BITRATE, (guint) vd->vi.bitrate_lower, NULL);
|
|
if (!bitrate)
|
|
bitrate = vd->vi.bitrate_lower;
|
|
}
|
|
if (bitrate) {
|
|
gst_tag_list_add (list, GST_TAG_MERGE_REPLACE,
|
|
GST_TAG_BITRATE, (guint) bitrate, NULL);
|
|
}
|
|
|
|
message = gst_message_new_tag ((GstObject *) vd, list);
|
|
gst_element_post_message (GST_ELEMENT (vd), message);
|
|
|
|
return GST_FLOW_OK;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
vorbis_handle_type_packet (GstVorbisDec * vd)
|
|
{
|
|
g_assert (vd->initialized == FALSE);
|
|
|
|
vorbis_synthesis_init (&vd->vd, &vd->vi);
|
|
vorbis_block_init (&vd->vd, &vd->vb);
|
|
vd->initialized = TRUE;
|
|
|
|
return GST_FLOW_OK;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
vorbis_handle_header_packet (GstVorbisDec * vd, ogg_packet * packet)
|
|
{
|
|
GstFlowReturn res;
|
|
|
|
GST_DEBUG_OBJECT (vd, "parsing header packet");
|
|
|
|
/* Packetno = 0 if the first byte is exactly 0x01 */
|
|
packet->b_o_s = (packet->packet[0] == 0x1) ? 1 : 0;
|
|
|
|
if (vorbis_synthesis_headerin (&vd->vi, &vd->vc, packet))
|
|
goto header_read_error;
|
|
|
|
/* FIXME: we should probably double-check if packet[0] is 1/3/5 for each
|
|
* of these */
|
|
switch (packet->packetno) {
|
|
case 0:
|
|
res = vorbis_handle_identification_packet (vd);
|
|
break;
|
|
case 1:
|
|
res = vorbis_handle_comment_packet (vd, packet);
|
|
break;
|
|
case 2:
|
|
res = vorbis_handle_type_packet (vd);
|
|
break;
|
|
default:
|
|
/* ignore */
|
|
res = GST_FLOW_OK;
|
|
break;
|
|
}
|
|
return res;
|
|
|
|
/* ERRORS */
|
|
header_read_error:
|
|
{
|
|
GST_ELEMENT_ERROR (GST_ELEMENT (vd), STREAM, DECODE,
|
|
(NULL), ("couldn't read header packet"));
|
|
return GST_FLOW_ERROR;
|
|
}
|
|
}
|
|
|
|
static void
|
|
copy_samples (float *out, float **in, guint samples, gint channels)
|
|
{
|
|
gint i, j;
|
|
|
|
#ifdef GST_VORBIS_DEC_SEQUENTIAL
|
|
for (i = 0; i < channels; i++) {
|
|
memcpy (out, in[i], samples * sizeof (float));
|
|
out += samples;
|
|
}
|
|
#else
|
|
for (j = 0; j < samples; j++) {
|
|
for (i = 0; i < channels; i++) {
|
|
*out++ = in[i][j];
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
static GstFlowReturn
|
|
vorbis_dec_push (GstVorbisDec * dec, GstBuffer * buf)
|
|
{
|
|
GstFlowReturn result;
|
|
gint64 outoffset = GST_BUFFER_OFFSET (buf);
|
|
|
|
if (outoffset == -1) {
|
|
dec->queued = g_list_append (dec->queued, buf);
|
|
GST_DEBUG_OBJECT (dec, "queued buffer");
|
|
result = GST_FLOW_OK;
|
|
} else {
|
|
if (dec->queued) {
|
|
gint64 size;
|
|
GList *walk;
|
|
|
|
GST_DEBUG_OBJECT (dec, "first buffer with offset %lld", outoffset);
|
|
|
|
size = g_list_length (dec->queued);
|
|
for (walk = g_list_last (dec->queued); walk;
|
|
walk = g_list_previous (walk)) {
|
|
GstBuffer *buffer = GST_BUFFER (walk->data);
|
|
|
|
outoffset -=
|
|
GST_BUFFER_SIZE (buffer) / (sizeof (float) * dec->vi.channels);
|
|
|
|
GST_BUFFER_OFFSET (buffer) = outoffset;
|
|
GST_BUFFER_TIMESTAMP (buffer) =
|
|
gst_util_uint64_scale (outoffset, GST_SECOND, dec->vi.rate);
|
|
GST_DEBUG_OBJECT (dec, "patch buffer %" G_GUINT64_FORMAT
|
|
" offset %" G_GUINT64_FORMAT, size, outoffset);
|
|
size--;
|
|
}
|
|
for (walk = dec->queued; walk; walk = g_list_next (walk)) {
|
|
GstBuffer *buffer = GST_BUFFER (walk->data);
|
|
|
|
/* ignore the result */
|
|
gst_pad_push (dec->srcpad, buffer);
|
|
}
|
|
g_list_free (dec->queued);
|
|
dec->queued = NULL;
|
|
}
|
|
result = gst_pad_push (dec->srcpad, buf);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
vorbis_handle_data_packet (GstVorbisDec * vd, ogg_packet * packet)
|
|
{
|
|
float **pcm;
|
|
guint sample_count;
|
|
GstBuffer *out;
|
|
GstFlowReturn result;
|
|
|
|
if (!vd->initialized)
|
|
goto not_initialized;
|
|
|
|
/* normal data packet */
|
|
if (vorbis_synthesis (&vd->vb, packet))
|
|
goto could_not_read;
|
|
|
|
if (vorbis_synthesis_blockin (&vd->vd, &vd->vb) < 0)
|
|
goto not_accepted;
|
|
|
|
/* assume all goes well here */
|
|
result = GST_FLOW_OK;
|
|
|
|
/* count samples ready for reading */
|
|
if ((sample_count = vorbis_synthesis_pcmout (&vd->vd, NULL)) == 0)
|
|
goto done;
|
|
|
|
/* alloc buffer for it */
|
|
result = gst_pad_alloc_buffer (vd->srcpad, GST_BUFFER_OFFSET_NONE,
|
|
sample_count * vd->vi.channels * sizeof (float),
|
|
GST_PAD_CAPS (vd->srcpad), &out);
|
|
if (result != GST_FLOW_OK)
|
|
goto done;
|
|
|
|
/* get samples ready for reading now, should be sample_count */
|
|
if ((vorbis_synthesis_pcmout (&vd->vd, &pcm)) != sample_count)
|
|
goto wrong_samples;
|
|
|
|
/* copy samples in buffer */
|
|
copy_samples ((float *) GST_BUFFER_DATA (out), pcm, sample_count,
|
|
vd->vi.channels);
|
|
|
|
GST_BUFFER_OFFSET (out) = vd->granulepos;
|
|
if (vd->granulepos != -1) {
|
|
GST_BUFFER_OFFSET_END (out) = vd->granulepos + sample_count;
|
|
GST_BUFFER_TIMESTAMP (out) =
|
|
gst_util_uint64_scale (vd->granulepos, GST_SECOND, vd->vi.rate);
|
|
} else {
|
|
GST_BUFFER_TIMESTAMP (out) = -1;
|
|
}
|
|
GST_BUFFER_DURATION (out) = sample_count * GST_SECOND / vd->vi.rate;
|
|
|
|
if (vd->cur_timestamp != GST_CLOCK_TIME_NONE) {
|
|
GST_BUFFER_TIMESTAMP (out) = vd->cur_timestamp;
|
|
GST_DEBUG ("cur_timestamp: %" GST_TIME_FORMAT " + %" GST_TIME_FORMAT " = % "
|
|
GST_TIME_FORMAT, GST_TIME_ARGS (vd->cur_timestamp),
|
|
GST_TIME_ARGS (GST_BUFFER_DURATION (out)),
|
|
GST_TIME_ARGS (vd->cur_timestamp + GST_BUFFER_DURATION (out)));
|
|
vd->cur_timestamp += GST_BUFFER_DURATION (out);
|
|
GST_BUFFER_OFFSET (out) = GST_CLOCK_TIME_TO_FRAMES (vd->cur_timestamp,
|
|
vd->vi.rate);
|
|
GST_BUFFER_OFFSET_END (out) = GST_BUFFER_OFFSET (out) + sample_count;
|
|
}
|
|
|
|
if (vd->granulepos != -1)
|
|
vd->granulepos += sample_count;
|
|
|
|
result = vorbis_dec_push (vd, out);
|
|
|
|
done:
|
|
vorbis_synthesis_read (&vd->vd, sample_count);
|
|
|
|
/* granulepos is the last sample in the packet */
|
|
if (packet->granulepos != -1)
|
|
vd->granulepos = packet->granulepos;
|
|
|
|
return result;
|
|
|
|
/* ERRORS */
|
|
not_initialized:
|
|
{
|
|
GST_ELEMENT_ERROR (GST_ELEMENT (vd), STREAM, DECODE,
|
|
(NULL), ("no header sent yet (packet no is %d)", packet->packetno));
|
|
return GST_FLOW_ERROR;
|
|
}
|
|
could_not_read:
|
|
{
|
|
GST_ELEMENT_ERROR (GST_ELEMENT (vd), STREAM, DECODE,
|
|
(NULL), ("couldn't read data packet"));
|
|
return GST_FLOW_ERROR;
|
|
}
|
|
not_accepted:
|
|
{
|
|
GST_ELEMENT_ERROR (GST_ELEMENT (vd), STREAM, DECODE,
|
|
(NULL), ("vorbis decoder did not accept data packet"));
|
|
return GST_FLOW_ERROR;
|
|
}
|
|
wrong_samples:
|
|
{
|
|
gst_buffer_unref (out);
|
|
GST_ELEMENT_ERROR (GST_ELEMENT (vd), STREAM, DECODE,
|
|
(NULL), ("vorbis decoder reported wrong number of samples"));
|
|
return GST_FLOW_ERROR;
|
|
}
|
|
}
|
|
|
|
static GstFlowReturn
|
|
vorbis_dec_chain (GstPad * pad, GstBuffer * buffer)
|
|
{
|
|
GstVorbisDec *vd;
|
|
ogg_packet packet;
|
|
GstFlowReturn result = GST_FLOW_OK;
|
|
|
|
vd = GST_VORBIS_DEC (GST_PAD_PARENT (pad));
|
|
|
|
if (GST_BUFFER_SIZE (buffer) == 0) {
|
|
gst_buffer_unref (buffer);
|
|
GST_ELEMENT_ERROR (vd, STREAM, DECODE, (NULL), ("empty buffer received"));
|
|
return GST_FLOW_ERROR;
|
|
}
|
|
|
|
/* only ogg has granulepos, demuxers of other container formats
|
|
* might provide us with timestamps instead (e.g. matroskademux) */
|
|
if (GST_BUFFER_OFFSET_END (buffer) == GST_BUFFER_OFFSET_NONE &&
|
|
GST_BUFFER_TIMESTAMP (buffer) != GST_CLOCK_TIME_NONE) {
|
|
/* we might get multiple consecutive buffers with the same timestamp */
|
|
if (GST_BUFFER_TIMESTAMP (buffer) != vd->prev_timestamp) {
|
|
vd->cur_timestamp = GST_BUFFER_TIMESTAMP (buffer);
|
|
vd->prev_timestamp = GST_BUFFER_TIMESTAMP (buffer);
|
|
}
|
|
} else {
|
|
vd->cur_timestamp = GST_CLOCK_TIME_NONE;
|
|
vd->prev_timestamp = GST_CLOCK_TIME_NONE;
|
|
}
|
|
|
|
/* make ogg_packet out of the buffer */
|
|
packet.packet = GST_BUFFER_DATA (buffer);
|
|
packet.bytes = GST_BUFFER_SIZE (buffer);
|
|
packet.granulepos = GST_BUFFER_OFFSET_END (buffer);
|
|
packet.packetno = vd->packetno++;
|
|
/*
|
|
* FIXME. Is there anyway to know that this is the last packet and
|
|
* set e_o_s??
|
|
* Yes there is, keep one packet at all times and only push out when
|
|
* you receive a new one. Implement this.
|
|
*/
|
|
packet.e_o_s = 0;
|
|
|
|
GST_DEBUG_OBJECT (vd, "vorbis granule: %" G_GINT64_FORMAT,
|
|
(gint64) packet.granulepos);
|
|
|
|
/* switch depending on packet type */
|
|
if (packet.packet[0] & 1) {
|
|
if (vd->initialized) {
|
|
GST_WARNING_OBJECT (vd, "Ignoring header");
|
|
goto done;
|
|
}
|
|
result = vorbis_handle_header_packet (vd, &packet);
|
|
} else {
|
|
result = vorbis_handle_data_packet (vd, &packet);
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (vd, "offset end: %" G_GINT64_FORMAT,
|
|
(gint64) GST_BUFFER_OFFSET_END (buffer));
|
|
|
|
done:
|
|
gst_buffer_unref (buffer);
|
|
|
|
return result;
|
|
}
|
|
|
|
static GstStateChangeReturn
|
|
vorbis_dec_change_state (GstElement * element, GstStateChange transition)
|
|
{
|
|
GstVorbisDec *vd = GST_VORBIS_DEC (element);
|
|
GstStateChangeReturn res;
|
|
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_NULL_TO_READY:
|
|
break;
|
|
case GST_STATE_CHANGE_READY_TO_PAUSED:
|
|
vorbis_info_init (&vd->vi);
|
|
vorbis_comment_init (&vd->vc);
|
|
vd->initialized = FALSE;
|
|
vd->cur_timestamp = GST_CLOCK_TIME_NONE;
|
|
vd->prev_timestamp = GST_CLOCK_TIME_NONE;
|
|
vd->granulepos = -1;
|
|
vd->packetno = 0;
|
|
break;
|
|
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
res = parent_class->change_state (element, transition);
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
|
|
break;
|
|
case GST_STATE_CHANGE_PAUSED_TO_READY:
|
|
GST_DEBUG_OBJECT (vd, "PAUSED -> READY, clearing vorbis structures");
|
|
vorbis_block_clear (&vd->vb);
|
|
vorbis_dsp_clear (&vd->vd);
|
|
vorbis_comment_clear (&vd->vc);
|
|
vorbis_info_clear (&vd->vi);
|
|
break;
|
|
case GST_STATE_CHANGE_READY_TO_NULL:
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return res;
|
|
}
|