/* GStreamer * Copyright (C) 2004 Benjamin Otte * * 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:element-theoradec * @see_also: theoraenc, oggdemux * * This element decodes theora streams into raw video * Theora is a royalty-free * video codec maintained by the Xiph.org * Foundation, based on the VP3 codec. * * * Example pipeline * |[ * gst-launch -v filesrc location=videotestsrc.ogg ! oggdemux ! theoradec ! xvimagesink * ]| This example pipeline will decode an ogg stream and decodes the theora video. Refer to * the theoraenc example to create the ogg file. * * * Last reviewed on 2006-03-01 (0.10.4) */ #ifdef HAVE_CONFIG_H # include "config.h" #endif #include "gsttheoradec.h" #include #include #include #include #define GST_CAT_DEFAULT theoradec_debug GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT); GST_DEBUG_CATEGORY_EXTERN (GST_CAT_PERFORMANCE); #define THEORA_DEF_TELEMETRY_MV 0 #define THEORA_DEF_TELEMETRY_MBMODE 0 #define THEORA_DEF_TELEMETRY_QI 0 #define THEORA_DEF_TELEMETRY_BITS 0 enum { PROP_0, PROP_TELEMETRY_MV, PROP_TELEMETRY_MBMODE, PROP_TELEMETRY_QI, PROP_TELEMETRY_BITS }; static GstStaticPadTemplate theora_dec_src_factory = GST_STATIC_PAD_TEMPLATE ("src", GST_PAD_SRC, GST_PAD_ALWAYS, GST_STATIC_CAPS ("video/x-raw, " "format = (string) { I420, Y42B, Y444 }, " "framerate = (fraction) [0/1, MAX], " "width = (int) [ 1, MAX ], " "height = (int) [ 1, MAX ]") ); static GstStaticPadTemplate theora_dec_sink_factory = GST_STATIC_PAD_TEMPLATE ("sink", GST_PAD_SINK, GST_PAD_ALWAYS, GST_STATIC_CAPS ("video/x-theora") ); #define gst_theora_dec_parent_class parent_class G_DEFINE_TYPE (GstTheoraDec, gst_theora_dec, GST_TYPE_ELEMENT); static void theora_dec_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec); static void theora_dec_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec); static gboolean theora_dec_setcaps (GstTheoraDec * dec, GstCaps * caps); static gboolean theora_dec_sink_event (GstPad * pad, GstObject * parent, GstEvent * event); static GstFlowReturn theora_dec_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer); static GstStateChangeReturn theora_dec_change_state (GstElement * element, GstStateChange transition); static gboolean theora_dec_src_event (GstPad * pad, GstObject * parent, GstEvent * event); static gboolean theora_dec_src_query (GstPad * pad, GstObject * parent, GstQuery * query); static gboolean theora_dec_src_convert (GstPad * pad, GstFormat src_format, gint64 src_value, GstFormat * dest_format, gint64 * dest_value); #if 0 static const GstFormat *theora_get_formats (GstPad * pad); #endif #if 0 static const GstEventMask *theora_get_event_masks (GstPad * pad); #endif static gboolean gst_theora_dec_ctl_is_supported (int req) { /* should return TH_EFAULT or TH_EINVAL if supported, and TH_EIMPL if not */ return (th_decode_ctl (NULL, req, NULL, 0) != TH_EIMPL); } static void gst_theora_dec_class_init (GstTheoraDecClass * klass) { GObjectClass *gobject_class = G_OBJECT_CLASS (klass); GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass); gobject_class->set_property = theora_dec_set_property; gobject_class->get_property = theora_dec_get_property; if (gst_theora_dec_ctl_is_supported (TH_DECCTL_SET_TELEMETRY_MV)) { g_object_class_install_property (gobject_class, PROP_TELEMETRY_MV, g_param_spec_int ("visualize-motion-vectors", "Visualize motion vectors", "Show motion vector selection overlaid on image. " "Value gives a mask for motion vector (MV) modes to show", 0, 0xffff, THEORA_DEF_TELEMETRY_MV, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); } if (gst_theora_dec_ctl_is_supported (TH_DECCTL_SET_TELEMETRY_MBMODE)) { g_object_class_install_property (gobject_class, PROP_TELEMETRY_MBMODE, g_param_spec_int ("visualize-macroblock-modes", "Visualize macroblock modes", "Show macroblock mode selection overlaid on image. " "Value gives a mask for macroblock (MB) modes to show", 0, 0xffff, THEORA_DEF_TELEMETRY_MBMODE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); } if (gst_theora_dec_ctl_is_supported (TH_DECCTL_SET_TELEMETRY_QI)) { g_object_class_install_property (gobject_class, PROP_TELEMETRY_QI, g_param_spec_int ("visualize-quantization-modes", "Visualize adaptive quantization modes", "Show adaptive quantization mode selection overlaid on image. " "Value gives a mask for quantization (QI) modes to show", 0, 0xffff, THEORA_DEF_TELEMETRY_QI, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); } if (gst_theora_dec_ctl_is_supported (TH_DECCTL_SET_TELEMETRY_BITS)) { /* FIXME: make this a boolean instead? The value scales the bars so * they're less wide. Default is to use full width, and anything else * doesn't seem particularly useful, since the smaller bars just disappear * then (they almost disappear for a value of 2 already). */ g_object_class_install_property (gobject_class, PROP_TELEMETRY_BITS, g_param_spec_int ("visualize-bit-usage", "Visualize bitstream usage breakdown", "Sets the bitstream breakdown visualization mode. " "Values influence the width of the bit usage bars to show", 0, 0xff, THEORA_DEF_TELEMETRY_BITS, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); } gst_element_class_add_pad_template (gstelement_class, gst_static_pad_template_get (&theora_dec_src_factory)); gst_element_class_add_pad_template (gstelement_class, gst_static_pad_template_get (&theora_dec_sink_factory)); gst_element_class_set_static_metadata (gstelement_class, "Theora video decoder", "Codec/Decoder/Video", "decode raw theora streams to raw YUV video", "Benjamin Otte , Wim Taymans "); gstelement_class->change_state = theora_dec_change_state; GST_DEBUG_CATEGORY_INIT (theoradec_debug, "theoradec", 0, "Theora decoder"); } static void gst_theora_dec_init (GstTheoraDec * dec) { dec->sinkpad = gst_pad_new_from_static_template (&theora_dec_sink_factory, "sink"); gst_pad_set_event_function (dec->sinkpad, theora_dec_sink_event); gst_pad_set_chain_function (dec->sinkpad, theora_dec_chain); gst_element_add_pad (GST_ELEMENT (dec), dec->sinkpad); dec->srcpad = gst_pad_new_from_static_template (&theora_dec_src_factory, "src"); gst_pad_set_event_function (dec->srcpad, theora_dec_src_event); gst_pad_set_query_function (dec->srcpad, theora_dec_src_query); gst_pad_use_fixed_caps (dec->srcpad); gst_element_add_pad (GST_ELEMENT (dec), dec->srcpad); dec->telemetry_mv = THEORA_DEF_TELEMETRY_MV; dec->telemetry_mbmode = THEORA_DEF_TELEMETRY_MBMODE; dec->telemetry_qi = THEORA_DEF_TELEMETRY_QI; dec->telemetry_bits = THEORA_DEF_TELEMETRY_BITS; dec->gather = NULL; dec->decode = NULL; dec->queued = NULL; dec->pendingevents = NULL; } static void gst_theora_dec_reset (GstTheoraDec * dec) { dec->need_keyframe = TRUE; dec->last_timestamp = -1; dec->discont = TRUE; dec->frame_nr = -1; dec->seqnum = gst_util_seqnum_next (); dec->dropped = 0; dec->processed = 0; gst_segment_init (&dec->segment, GST_FORMAT_TIME); GST_OBJECT_LOCK (dec); dec->proportion = 1.0; dec->earliest_time = -1; GST_OBJECT_UNLOCK (dec); g_list_foreach (dec->queued, (GFunc) gst_mini_object_unref, NULL); g_list_free (dec->queued); dec->queued = NULL; g_list_foreach (dec->gather, (GFunc) gst_mini_object_unref, NULL); g_list_free (dec->gather); dec->gather = NULL; g_list_foreach (dec->decode, (GFunc) gst_mini_object_unref, NULL); g_list_free (dec->decode); dec->decode = NULL; g_list_foreach (dec->pendingevents, (GFunc) gst_mini_object_unref, NULL); g_list_free (dec->pendingevents); dec->pendingevents = NULL; if (dec->tags) { gst_tag_list_free (dec->tags); dec->tags = NULL; } } #if 0 static const GstFormat * theora_get_formats (GstPad * pad) { static GstFormat src_formats[] = { GST_FORMAT_DEFAULT, /* frames in this case */ GST_FORMAT_TIME, GST_FORMAT_BYTES, 0 }; static GstFormat sink_formats[] = { GST_FORMAT_DEFAULT, GST_FORMAT_TIME, 0 }; return (GST_PAD_IS_SRC (pad) ? src_formats : sink_formats); } #endif #if 0 static const GstEventMask * theora_get_event_masks (GstPad * pad) { static const GstEventMask theora_src_event_masks[] = { {GST_EVENT_SEEK, GST_SEEK_METHOD_SET | GST_SEEK_FLAG_FLUSH}, {0,} }; return theora_src_event_masks; } #endif static gboolean theora_dec_src_convert (GstPad * pad, GstFormat src_format, gint64 src_value, GstFormat * dest_format, gint64 * dest_value) { gboolean res = TRUE; GstTheoraDec *dec; guint64 scale = 1; if (src_format == *dest_format) { *dest_value = src_value; return TRUE; } dec = GST_THEORA_DEC (gst_pad_get_parent (pad)); /* we need the info part before we can done something */ if (!dec->have_header) goto no_header; switch (src_format) { case GST_FORMAT_BYTES: switch (*dest_format) { case GST_FORMAT_DEFAULT: *dest_value = gst_util_uint64_scale_int (src_value, 8, dec->info.pic_height * dec->info.pic_width * dec->output_bpp); break; case GST_FORMAT_TIME: /* seems like a rather silly conversion, implement me if you like */ default: res = FALSE; } break; case GST_FORMAT_TIME: switch (*dest_format) { case GST_FORMAT_BYTES: scale = dec->output_bpp * (dec->info.pic_width * dec->info.pic_height) / 8; case GST_FORMAT_DEFAULT: *dest_value = scale * gst_util_uint64_scale (src_value, dec->info.fps_numerator, dec->info.fps_denominator * GST_SECOND); break; default: res = FALSE; } break; case GST_FORMAT_DEFAULT: switch (*dest_format) { case GST_FORMAT_TIME: *dest_value = gst_util_uint64_scale (src_value, GST_SECOND * dec->info.fps_denominator, dec->info.fps_numerator); break; case GST_FORMAT_BYTES: *dest_value = gst_util_uint64_scale_int (src_value, dec->output_bpp * dec->info.pic_width * dec->info.pic_height, 8); break; default: res = FALSE; } break; default: res = FALSE; } done: gst_object_unref (dec); return res; /* ERRORS */ no_header: { GST_DEBUG_OBJECT (dec, "no header yet, cannot convert"); res = FALSE; goto done; } } #if 0 static gboolean theora_dec_sink_convert (GstPad * pad, GstFormat src_format, gint64 src_value, GstFormat * dest_format, gint64 * dest_value) { gboolean res = TRUE; GstTheoraDec *dec; if (src_format == *dest_format) { *dest_value = src_value; return TRUE; } dec = GST_THEORA_DEC (gst_pad_get_parent (pad)); /* we need the info part before we can done something */ if (!dec->have_header) goto no_header; switch (src_format) { case GST_FORMAT_DEFAULT: switch (*dest_format) { case GST_FORMAT_TIME: *dest_value = _theora_granule_start_time (dec, src_value); break; default: res = FALSE; } break; case GST_FORMAT_TIME: switch (*dest_format) { case GST_FORMAT_DEFAULT: { guint rest; /* framecount */ *dest_value = gst_util_uint64_scale (src_value, dec->info.fps_numerator, GST_SECOND * dec->info.fps_denominator); /* funny way of calculating granulepos in theora */ rest = *dest_value / dec->info.keyframe_granule_shift; *dest_value -= rest; *dest_value <<= dec->granule_shift; *dest_value += rest; break; } default: res = FALSE; break; } break; default: res = FALSE; } done: gst_object_unref (dec); return res; /* ERRORS */ no_header: { GST_DEBUG_OBJECT (dec, "no header yet, cannot convert"); res = FALSE; goto done; } } #endif static gboolean theora_dec_src_query (GstPad * pad, GstObject * parent, GstQuery * query) { GstTheoraDec *dec; gboolean res = FALSE; dec = GST_THEORA_DEC (parent); switch (GST_QUERY_TYPE (query)) { case GST_QUERY_POSITION: { gint64 value; GstFormat format; gint64 time; /* parse format */ gst_query_parse_position (query, &format, NULL); time = dec->last_timestamp; time = gst_segment_to_stream_time (&dec->segment, GST_FORMAT_TIME, time); GST_LOG_OBJECT (dec, "query %p: our time: %" GST_TIME_FORMAT, query, GST_TIME_ARGS (time)); if (!(res = theora_dec_src_convert (pad, GST_FORMAT_TIME, time, &format, &value))) goto error; gst_query_set_position (query, format, value); GST_LOG_OBJECT (dec, "query %p: we return %" G_GINT64_FORMAT " (format %u)", query, value, format); break; } case GST_QUERY_DURATION: { /* forward to peer for total */ res = gst_pad_peer_query (dec->sinkpad, query); if (!res) goto error; break; } case GST_QUERY_CONVERT: { GstFormat src_fmt, dest_fmt; gint64 src_val, dest_val; gst_query_parse_convert (query, &src_fmt, &src_val, &dest_fmt, &dest_val); if (!(res = theora_dec_src_convert (pad, src_fmt, src_val, &dest_fmt, &dest_val))) goto error; gst_query_set_convert (query, src_fmt, src_val, dest_fmt, dest_val); break; } default: res = gst_pad_query_default (pad, parent, query); break; } done: return res; /* ERRORS */ error: { GST_DEBUG_OBJECT (dec, "query failed"); goto done; } } static gboolean theora_dec_src_event (GstPad * pad, GstObject * parent, GstEvent * event) { gboolean res = TRUE; GstTheoraDec *dec; dec = GST_THEORA_DEC (parent); switch (GST_EVENT_TYPE (event)) { case GST_EVENT_SEEK: { GstFormat format, tformat; gdouble rate; GstEvent *real_seek; GstSeekFlags flags; GstSeekType cur_type, stop_type; gint64 cur, stop; gint64 tcur, tstop; guint32 seqnum; gst_event_parse_seek (event, &rate, &format, &flags, &cur_type, &cur, &stop_type, &stop); seqnum = gst_event_get_seqnum (event); gst_event_unref (event); /* we have to ask our peer to seek to time here as we know * nothing about how to generate a granulepos from the src * formats or anything. * * First bring the requested format to time */ tformat = GST_FORMAT_TIME; if (!(res = theora_dec_src_convert (pad, format, cur, &tformat, &tcur))) goto convert_error; if (!(res = theora_dec_src_convert (pad, format, stop, &tformat, &tstop))) goto convert_error; /* then seek with time on the peer */ real_seek = gst_event_new_seek (rate, GST_FORMAT_TIME, flags, cur_type, tcur, stop_type, tstop); gst_event_set_seqnum (real_seek, seqnum); res = gst_pad_push_event (dec->sinkpad, real_seek); break; } case GST_EVENT_QOS: { gdouble proportion; GstClockTimeDiff diff; GstClockTime timestamp; gst_event_parse_qos (event, NULL, &proportion, &diff, ×tamp); /* we cannot randomly skip frame decoding since we don't have * B frames. we can however use the timestamp and diff to not * push late frames. This would at least save us the time to * crop/memcpy the data. */ GST_OBJECT_LOCK (dec); dec->proportion = proportion; dec->earliest_time = timestamp + diff; GST_OBJECT_UNLOCK (dec); GST_DEBUG_OBJECT (dec, "got QoS %" GST_TIME_FORMAT ", %" G_GINT64_FORMAT, GST_TIME_ARGS (timestamp), diff); res = gst_pad_push_event (dec->sinkpad, event); break; } default: res = gst_pad_push_event (dec->sinkpad, event); break; } done: return res; /* ERRORS */ convert_error: { GST_DEBUG_OBJECT (dec, "could not convert format"); goto done; } } static gboolean theora_dec_sink_event (GstPad * pad, GstObject * parent, GstEvent * event) { gboolean ret = FALSE; GstTheoraDec *dec; dec = GST_THEORA_DEC (parent); GST_LOG_OBJECT (dec, "handling event"); switch (GST_EVENT_TYPE (event)) { case GST_EVENT_FLUSH_START: ret = gst_pad_push_event (dec->srcpad, event); break; case GST_EVENT_FLUSH_STOP: gst_theora_dec_reset (dec); ret = gst_pad_push_event (dec->srcpad, event); break; case GST_EVENT_EOS: ret = gst_pad_push_event (dec->srcpad, event); break; case GST_EVENT_SEGMENT: { const GstSegment *segment; gst_event_parse_segment (event, &segment); /* we need TIME format */ if (segment->format != GST_FORMAT_TIME) goto newseg_wrong_format; GST_DEBUG_OBJECT (dec, "segment: %" GST_SEGMENT_FORMAT, segment); /* now configure the values */ gst_segment_copy_into (segment, &dec->segment); dec->seqnum = gst_event_get_seqnum (event); /* We don't forward this unless/until the decoder is initialised */ if (dec->have_header) { ret = gst_pad_push_event (dec->srcpad, event); } else { dec->pendingevents = g_list_append (dec->pendingevents, event); ret = TRUE; } break; } case GST_EVENT_CAPS: { GstCaps *caps; gst_event_parse_caps (event, &caps); ret = theora_dec_setcaps (dec, caps); gst_event_unref (event); break; } case GST_EVENT_TAG: { if (dec->have_header) /* and forward */ ret = gst_pad_push_event (dec->srcpad, event); else { /* store it to send once we're initialized */ dec->pendingevents = g_list_append (dec->pendingevents, event); ret = TRUE; } break; } default: ret = gst_pad_event_default (pad, parent, event); break; } done: return ret; /* ERRORS */ newseg_wrong_format: { GST_DEBUG_OBJECT (dec, "received non TIME newsegment"); gst_event_unref (event); goto done; } } static gboolean theora_dec_setcaps (GstTheoraDec * dec, GstCaps * caps) { GstStructure *s; const GValue *codec_data; s = gst_caps_get_structure (caps, 0); /* parse the par, this overrides the encoded par */ dec->have_par = gst_structure_get_fraction (s, "pixel-aspect-ratio", &dec->par_num, &dec->par_den); if ((codec_data = gst_structure_get_value (s, "codec_data"))) { if (G_VALUE_TYPE (codec_data) == GST_TYPE_BUFFER) { GstBuffer *buffer; GstMapInfo map; guint8 *ptr; gsize left; guint offset; buffer = gst_value_get_buffer (codec_data); offset = 0; gst_buffer_map (buffer, &map, GST_MAP_READ); ptr = map.data; left = map.size; while (left > 2) { guint psize; GstBuffer *buf; psize = (ptr[0] << 8) | ptr[1]; /* skip header */ ptr += 2; left -= 2; offset += 2; /* make sure we don't read too much */ psize = MIN (psize, left); buf = gst_buffer_copy_region (buffer, GST_BUFFER_COPY_ALL, offset, psize); /* first buffer is a discont buffer */ if (offset == 2) GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DISCONT); /* now feed it to the decoder we can ignore the error */ theora_dec_chain (dec->sinkpad, GST_OBJECT_CAST (dec), buf); /* skip the data */ left -= psize; ptr += psize; offset += psize; } gst_buffer_unmap (buffer, &map); } } return TRUE; } static GstFlowReturn theora_handle_comment_packet (GstTheoraDec * dec, ogg_packet * packet) { gchar *encoder = NULL; GstTagList *list; GST_DEBUG_OBJECT (dec, "parsing comment packet"); list = gst_tag_list_from_vorbiscomment (packet->packet, packet->bytes, (guint8 *) "\201theora", 7, &encoder); if (!list) { GST_ERROR_OBJECT (dec, "couldn't decode comments"); list = gst_tag_list_new_empty (); } 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, dec->info.version_major, GST_TAG_VIDEO_CODEC, "Theora", NULL); if (dec->info.target_bitrate > 0) { gst_tag_list_add (list, GST_TAG_MERGE_REPLACE, GST_TAG_BITRATE, dec->info.target_bitrate, GST_TAG_NOMINAL_BITRATE, dec->info.target_bitrate, NULL); } dec->tags = list; return GST_FLOW_OK; } static GstFlowReturn theora_negotiate (GstTheoraDec * dec) { GstVideoFormat format; GstQuery *query; GstBufferPool *pool; guint size, min, max; GstStructure *config; GstCaps *caps; GstVideoInfo info, cinfo; /* theora has: * * frame_width/frame_height : dimension of the encoded frame * pic_width/pic_height : dimension of the visible part * pic_x/pic_y : offset in encoded frame where visible part starts */ GST_DEBUG_OBJECT (dec, "frame dimension %dx%d, PAR %d/%d, fps %d/%d", dec->info.frame_width, dec->info.frame_height, dec->info.aspect_numerator, dec->info.aspect_denominator, dec->info.fps_numerator, dec->info.fps_denominator); GST_DEBUG_OBJECT (dec, "picture dimension %dx%d, offset %d:%d", dec->info.pic_width, dec->info.pic_height, dec->info.pic_x, dec->info.pic_y); switch (dec->info.pixel_fmt) { case TH_PF_444: dec->output_bpp = 24; format = GST_VIDEO_FORMAT_Y444; break; case TH_PF_420: dec->output_bpp = 12; /* Average bits per pixel. */ format = GST_VIDEO_FORMAT_I420; break; case TH_PF_422: dec->output_bpp = 16; format = GST_VIDEO_FORMAT_Y42B; break; default: goto invalid_format; } if (dec->info.pic_width != dec->info.frame_width || dec->info.pic_height != dec->info.frame_height || dec->info.pic_x != 0 || dec->info.pic_y != 0) { GST_DEBUG_OBJECT (dec, "we need to crop"); dec->need_cropping = TRUE; } else { GST_DEBUG_OBJECT (dec, "no cropping needed"); dec->need_cropping = FALSE; } /* info contains the dimensions for the coded picture before cropping */ gst_video_info_init (&info); gst_video_info_set_format (&info, format, dec->info.frame_width, dec->info.frame_height); info.fps_n = dec->info.fps_numerator; info.fps_d = dec->info.fps_denominator; /* calculate par * the info.aspect_* values reflect PAR; * 0:x and x:0 are allowed and can be interpreted as 1:1. */ if (dec->have_par) { /* we had a par on the sink caps, override the encoded par */ GST_DEBUG_OBJECT (dec, "overriding with input PAR %dx%d", dec->par_num, dec->par_den); info.par_n = dec->par_num; info.par_d = dec->par_den; } else { /* take encoded par */ info.par_n = dec->info.aspect_numerator; info.par_d = dec->info.aspect_denominator; } if (info.par_n == 0 || info.par_d == 0) { info.par_n = info.par_d = 1; } /* these values are for all versions of the colorspace specified in the * theora info */ info.chroma_site = GST_VIDEO_CHROMA_SITE_JPEG; info.colorimetry.range = GST_VIDEO_COLOR_RANGE_16_235; info.colorimetry.matrix = GST_VIDEO_COLOR_MATRIX_BT601; info.colorimetry.transfer = GST_VIDEO_TRANSFER_BT709; switch (dec->info.colorspace) { case TH_CS_ITU_REC_470M: info.colorimetry.primaries = GST_VIDEO_COLOR_PRIMARIES_BT470M; break; case TH_CS_ITU_REC_470BG: info.colorimetry.primaries = GST_VIDEO_COLOR_PRIMARIES_BT470BG; break; default: info.colorimetry.primaries = GST_VIDEO_COLOR_PRIMARIES_UNKNOWN; break; } /* remove reconfigure flag now */ gst_pad_check_reconfigure (dec->srcpad); /* for the output caps we always take the cropped dimensions */ cinfo = info; gst_video_info_set_format (&cinfo, GST_VIDEO_INFO_FORMAT (&info), dec->info.pic_width, dec->info.pic_height); caps = gst_video_info_to_caps (&cinfo); gst_pad_set_caps (dec->srcpad, caps); /* find a pool for the negotiated caps now */ query = gst_query_new_allocation (caps, TRUE); if (gst_pad_peer_query (dec->srcpad, query)) { /* check if downstream supports cropping */ dec->has_cropping = gst_query_has_allocation_meta (query, GST_VIDEO_CROP_META_API_TYPE); } else { /* not a problem, deal with defaults */ GST_DEBUG_OBJECT (dec, "didn't get downstream ALLOCATION hints"); dec->has_cropping = FALSE; } if (gst_query_get_n_allocation_pools (query) > 0) { /* we got configuration from our peer, parse them */ gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max); } else { pool = NULL; size = 0; min = max = 0; } GST_DEBUG_OBJECT (dec, "downstream cropping %d", dec->has_cropping); if (pool == NULL) { /* we did not get a pool, make one ourselves then */ pool = gst_video_buffer_pool_new (); } if (dec->pool) { gst_buffer_pool_set_active (dec->pool, FALSE); gst_object_unref (dec->pool); } dec->pool = pool; if (dec->has_cropping) { dec->vinfo = info; /* we can crop, configure the pool with buffers of caps and size of the * decoded picture size and then crop them with metadata */ gst_caps_unref (caps); caps = gst_video_info_to_caps (&info); } else { /* no cropping, use cropped videoinfo */ dec->vinfo = cinfo; } size = MAX (size, GST_VIDEO_INFO_SIZE (&dec->vinfo)); config = gst_buffer_pool_get_config (pool); gst_buffer_pool_config_set_params (config, caps, size, min, max); gst_caps_unref (caps); if (gst_query_has_allocation_meta (query, GST_VIDEO_META_API_TYPE)) { /* just set the option, if the pool can support it we will transparently use * it through the video info API. We could also see if the pool support this * option and only activate it then. */ gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META); } gst_buffer_pool_set_config (pool, config); /* and activate */ gst_buffer_pool_set_active (pool, TRUE); gst_query_unref (query); return GST_FLOW_OK; /* ERRORS */ invalid_format: { GST_ERROR_OBJECT (dec, "Invalid pixel format %d", dec->info.pixel_fmt); return GST_FLOW_ERROR; } } static GstFlowReturn theora_handle_type_packet (GstTheoraDec * dec, ogg_packet * packet) { GstFlowReturn ret = GST_FLOW_OK; GList *walk; if ((ret = theora_negotiate (dec)) != GST_FLOW_OK) goto negotiate_failed; /* done */ dec->decoder = th_decode_alloc (&dec->info, dec->setup); if (th_decode_ctl (dec->decoder, TH_DECCTL_SET_TELEMETRY_MV, &dec->telemetry_mv, sizeof (dec->telemetry_mv)) != TH_EIMPL) { GST_WARNING_OBJECT (dec, "Could not enable MV visualisation"); } if (th_decode_ctl (dec->decoder, TH_DECCTL_SET_TELEMETRY_MBMODE, &dec->telemetry_mbmode, sizeof (dec->telemetry_mbmode)) != TH_EIMPL) { GST_WARNING_OBJECT (dec, "Could not enable MB mode visualisation"); } if (th_decode_ctl (dec->decoder, TH_DECCTL_SET_TELEMETRY_QI, &dec->telemetry_qi, sizeof (dec->telemetry_qi)) != TH_EIMPL) { GST_WARNING_OBJECT (dec, "Could not enable QI mode visualisation"); } if (th_decode_ctl (dec->decoder, TH_DECCTL_SET_TELEMETRY_BITS, &dec->telemetry_bits, sizeof (dec->telemetry_bits)) != TH_EIMPL) { GST_WARNING_OBJECT (dec, "Could not enable BITS mode visualisation"); } dec->have_header = TRUE; if (dec->pendingevents) { for (walk = dec->pendingevents; walk; walk = g_list_next (walk)) gst_pad_push_event (dec->srcpad, GST_EVENT_CAST (walk->data)); g_list_free (dec->pendingevents); dec->pendingevents = NULL; } if (dec->tags) { gst_pad_push_event (dec->srcpad, gst_event_new_tag (dec->tags)); dec->tags = NULL; } return ret; /* ERRORS */ negotiate_failed: { GST_ERROR_OBJECT (dec, "failed to negotiate"); return ret; } } static GstFlowReturn theora_handle_header_packet (GstTheoraDec * dec, ogg_packet * packet) { GstFlowReturn res; int ret; GST_DEBUG_OBJECT (dec, "parsing header packet"); ret = th_decode_headerin (&dec->info, &dec->comment, &dec->setup, packet); if (ret < 0) goto header_read_error; switch (packet->packet[0]) { case 0x81: res = theora_handle_comment_packet (dec, packet); break; case 0x82: res = theora_handle_type_packet (dec, packet); break; default: /* ignore */ g_warning ("unknown theora header packet found"); case 0x80: /* nothing special, this is the identification header */ res = GST_FLOW_OK; break; } return res; /* ERRORS */ header_read_error: { GST_ELEMENT_ERROR (GST_ELEMENT (dec), STREAM, DECODE, (NULL), ("couldn't read header packet")); return GST_FLOW_ERROR; } } /* returns TRUE if buffer is within segment, else FALSE. * if Buffer is on segment border, it's timestamp and duration will be clipped */ static gboolean clip_buffer (GstTheoraDec * dec, GstBuffer * buf) { gboolean res = TRUE; GstClockTime in_ts, in_dur, stop; guint64 cstart, cstop; in_ts = GST_BUFFER_TIMESTAMP (buf); in_dur = GST_BUFFER_DURATION (buf); GST_LOG_OBJECT (dec, "timestamp:%" GST_TIME_FORMAT " , duration:%" GST_TIME_FORMAT, GST_TIME_ARGS (in_ts), GST_TIME_ARGS (in_dur)); /* can't clip without TIME segment */ if (dec->segment.format != GST_FORMAT_TIME) goto beach; /* we need a start time */ if (!GST_CLOCK_TIME_IS_VALID (in_ts)) goto beach; /* generate valid stop, if duration unknown, we have unknown stop */ stop = GST_CLOCK_TIME_IS_VALID (in_dur) ? (in_ts + in_dur) : GST_CLOCK_TIME_NONE; /* now clip */ if (!(res = gst_segment_clip (&dec->segment, GST_FORMAT_TIME, in_ts, stop, &cstart, &cstop))) goto beach; /* update timestamp and possibly duration if the clipped stop time is * valid */ GST_BUFFER_TIMESTAMP (buf) = cstart; if (GST_CLOCK_TIME_IS_VALID (cstop)) GST_BUFFER_DURATION (buf) = cstop - cstart; beach: GST_LOG_OBJECT (dec, "%sdropping", (res ? "not " : "")); return res; } static GstFlowReturn theora_dec_push_forward (GstTheoraDec * dec, GstBuffer * buf) { GstFlowReturn result = GST_FLOW_OK; if (clip_buffer (dec, buf)) { if (dec->discont) { GST_LOG_OBJECT (dec, "setting DISCONT"); GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DISCONT); dec->discont = FALSE; } result = gst_pad_push (dec->srcpad, buf); } else { gst_buffer_unref (buf); } return result; } static GstFlowReturn theora_dec_push_reverse (GstTheoraDec * dec, GstBuffer * buf) { GstFlowReturn result = GST_FLOW_OK; dec->queued = g_list_prepend (dec->queued, buf); return result; } /* Allocate buffer and copy image data into Y444 format */ static GstFlowReturn theora_handle_image (GstTheoraDec * dec, th_ycbcr_buffer buf, GstBuffer ** out) { gint width, height, stride; gint pic_width, pic_height; GstFlowReturn result; int i, comp; guint8 *dest, *src; GstVideoFrame frame; GstVideoCropMeta *crop; gint offset_x, offset_y; if G_UNLIKELY (gst_pad_check_reconfigure (dec->srcpad)) if G_UNLIKELY ((result = theora_negotiate (dec)) != GST_FLOW_OK) goto negotiate_failed; result = gst_buffer_pool_acquire_buffer (dec->pool, out, NULL); if (G_UNLIKELY (result != GST_FLOW_OK)) goto no_buffer; if (!dec->has_cropping) { /* we need to crop the hard way */ offset_x = dec->info.pic_x; offset_y = dec->info.pic_y; pic_width = dec->info.pic_width; pic_height = dec->info.pic_height; /* Ensure correct offsets in chroma for formats that need it * by rounding the offset. libtheora will add proper pixels, * so no need to handle them ourselves. */ if (offset_x & 1 && dec->info.pixel_fmt != TH_PF_444) offset_x--; if (offset_y & 1 && dec->info.pixel_fmt == TH_PF_420) offset_y--; } else { /* copy the whole frame */ offset_x = 0; offset_y = 0; pic_width = dec->info.frame_width; pic_height = dec->info.frame_height; if (dec->has_cropping && dec->need_cropping) { crop = gst_buffer_add_video_crop_meta (*out); /* we can do things slightly more efficient when we know that * downstream understands clipping */ crop->x = dec->info.pic_x; crop->y = dec->info.pic_y; crop->width = dec->info.pic_width; crop->height = dec->info.pic_height; } } /* if only libtheora would allow us to give it a destination frame */ GST_CAT_TRACE_OBJECT (GST_CAT_PERFORMANCE, dec, "doing unavoidable video frame copy"); if G_UNLIKELY (!gst_video_frame_map (&frame, &dec->vinfo, *out, GST_MAP_WRITE)) goto invalid_frame; for (comp = 0; comp < 3; comp++) { width = GST_VIDEO_FORMAT_INFO_SCALE_WIDTH (frame.info.finfo, comp, pic_width); height = GST_VIDEO_FORMAT_INFO_SCALE_HEIGHT (frame.info.finfo, comp, pic_height); stride = GST_VIDEO_FRAME_COMP_STRIDE (&frame, comp); dest = GST_VIDEO_FRAME_COMP_DATA (&frame, comp); src = buf[comp].data; src += ((height == pic_height) ? offset_y : offset_y / 2) * buf[comp].stride; src += (width == pic_width) ? offset_x : offset_x / 2; for (i = 0; i < height; i++) { memcpy (dest, src, width); dest += stride; src += buf[comp].stride; } } gst_video_frame_unmap (&frame); return GST_FLOW_OK; /* ERRORS */ negotiate_failed: { GST_DEBUG_OBJECT (dec, "could not negotiate, reason: %s", gst_flow_get_name (result)); return result; } no_buffer: { GST_DEBUG_OBJECT (dec, "could not get buffer, reason: %s", gst_flow_get_name (result)); return result; } invalid_frame: { GST_DEBUG_OBJECT (dec, "could not map video frame"); return GST_FLOW_ERROR; } } static GstFlowReturn theora_handle_data_packet (GstTheoraDec * dec, ogg_packet * packet, GstClockTime outtime, GstClockTime outdur) { /* normal data packet */ th_ycbcr_buffer buf; GstBuffer *out; gboolean keyframe; GstFlowReturn result; ogg_int64_t gp; if (G_UNLIKELY (!dec->have_header)) goto not_initialized; /* get timestamp and durations */ if (outtime == -1) outtime = dec->last_timestamp; if (outdur == -1) outdur = gst_util_uint64_scale_int (GST_SECOND, dec->info.fps_denominator, dec->info.fps_numerator); /* calculate expected next timestamp */ if (outtime != -1 && outdur != -1) dec->last_timestamp = outtime + outdur; /* the second most significant bit of the first data byte is cleared * for keyframes. We can only check it if it's not a zero-length packet. */ keyframe = packet->bytes && ((packet->packet[0] & 0x40) == 0); if (G_UNLIKELY (keyframe)) { GST_DEBUG_OBJECT (dec, "we have a keyframe"); dec->need_keyframe = FALSE; } else if (G_UNLIKELY (dec->need_keyframe)) { goto dropping; } GST_DEBUG_OBJECT (dec, "parsing data packet"); /* this does the decoding */ if (G_UNLIKELY (th_decode_packetin (dec->decoder, packet, &gp) < 0)) goto decode_error; if (outtime != -1) { gboolean need_skip; GstClockTime running_time; GstClockTime earliest_time; gdouble proportion; /* qos needs to be done on running time */ running_time = gst_segment_to_running_time (&dec->segment, GST_FORMAT_TIME, outtime); GST_OBJECT_LOCK (dec); proportion = dec->proportion; earliest_time = dec->earliest_time; /* check for QoS, don't perform the last steps of getting and * pushing the buffers that are known to be late. */ need_skip = earliest_time != -1 && running_time <= earliest_time; GST_OBJECT_UNLOCK (dec); if (need_skip) { GstMessage *qos_msg; guint64 stream_time; gint64 jitter; GST_DEBUG_OBJECT (dec, "skipping decoding: qostime %" GST_TIME_FORMAT " <= %" GST_TIME_FORMAT, GST_TIME_ARGS (running_time), GST_TIME_ARGS (earliest_time)); dec->dropped++; stream_time = gst_segment_to_stream_time (&dec->segment, GST_FORMAT_TIME, outtime); jitter = GST_CLOCK_DIFF (running_time, earliest_time); qos_msg = gst_message_new_qos (GST_OBJECT_CAST (dec), FALSE, running_time, stream_time, outtime, outdur); gst_message_set_qos_values (qos_msg, jitter, proportion, 1000000); gst_message_set_qos_stats (qos_msg, GST_FORMAT_BUFFERS, dec->processed, dec->dropped); gst_element_post_message (GST_ELEMENT_CAST (dec), qos_msg); goto dropping_qos; } } /* this does postprocessing and set up the decoded frame * pointers in our yuv variable */ if (G_UNLIKELY (th_decode_ycbcr_out (dec->decoder, buf) < 0)) goto no_yuv; if (G_UNLIKELY ((buf[0].width != dec->info.frame_width) || (buf[0].height != dec->info.frame_height))) goto wrong_dimensions; result = theora_handle_image (dec, buf, &out); if (result != GST_FLOW_OK) return result; GST_BUFFER_OFFSET (out) = dec->frame_nr; if (dec->frame_nr != -1) dec->frame_nr++; GST_BUFFER_OFFSET_END (out) = dec->frame_nr; GST_BUFFER_TIMESTAMP (out) = outtime; GST_BUFFER_DURATION (out) = outdur; dec->processed++; if (dec->segment.rate >= 0.0) result = theora_dec_push_forward (dec, out); else result = theora_dec_push_reverse (dec, out); return result; /* ERRORS */ not_initialized: { GST_ELEMENT_ERROR (GST_ELEMENT (dec), STREAM, DECODE, (NULL), ("no header sent yet")); return GST_FLOW_ERROR; } dropping: { GST_WARNING_OBJECT (dec, "dropping frame because we need a keyframe"); dec->discont = TRUE; return GST_FLOW_OK; } dropping_qos: { if (dec->frame_nr != -1) dec->frame_nr++; dec->discont = TRUE; GST_WARNING_OBJECT (dec, "dropping frame because of QoS"); return GST_FLOW_OK; } decode_error: { GST_ELEMENT_ERROR (GST_ELEMENT (dec), STREAM, DECODE, (NULL), ("theora decoder did not decode data packet")); return GST_FLOW_ERROR; } no_yuv: { GST_ELEMENT_ERROR (GST_ELEMENT (dec), STREAM, DECODE, (NULL), ("couldn't read out YUV image")); return GST_FLOW_ERROR; } wrong_dimensions: { GST_ELEMENT_ERROR (GST_ELEMENT (dec), STREAM, FORMAT, (NULL), ("dimensions of image do not match header")); return GST_FLOW_ERROR; } } static GstFlowReturn theora_dec_decode_buffer (GstTheoraDec * dec, GstBuffer * buf) { ogg_packet packet; GstFlowReturn result = GST_FLOW_OK; GstClockTime timestamp, duration; GstMapInfo map; /* make ogg_packet out of the buffer */ gst_buffer_map (buf, &map, GST_MAP_READ); packet.packet = map.data; packet.bytes = map.size; packet.granulepos = -1; packet.packetno = 0; /* we don't really care */ packet.b_o_s = dec->have_header ? 0 : 1; /* EOS does not matter for the decoder */ packet.e_o_s = 0; GST_LOG_OBJECT (dec, "decode buffer of size %ld", packet.bytes); /* save last seem timestamp for interpolating the next timestamps using the * framerate when we need to */ timestamp = GST_BUFFER_TIMESTAMP (buf); duration = GST_BUFFER_DURATION (buf); GST_DEBUG_OBJECT (dec, "header=%02x, outtime=%" GST_TIME_FORMAT, packet.bytes ? packet.packet[0] : -1, GST_TIME_ARGS (timestamp)); /* switch depending on packet type. A zero byte packet is always a data * packet; we don't dereference it in that case. */ if (packet.bytes && packet.packet[0] & 0x80) { if (dec->have_header) { GST_WARNING_OBJECT (GST_OBJECT (dec), "Ignoring header"); goto done; } result = theora_handle_header_packet (dec, &packet); } else { result = theora_handle_data_packet (dec, &packet, timestamp, duration); } done: gst_buffer_unmap (buf, &map); return result; } /* For reverse playback we use a technique that can be used for * any keyframe based video codec. * * Input: * Buffer decoding order: 7 8 9 4 5 6 1 2 3 EOS * Keyframe flag: K K * Discont flag: D D D * * - Each Discont marks a discont in the decoding order. * - The keyframes mark where we can start decoding. * * First we prepend incomming buffers to the gather queue, whenever we receive * a discont, we flush out the gather queue. * * The above data will be accumulated in the gather queue like this: * * gather queue: 9 8 7 * D * * Whe buffer 4 is received (with a DISCONT), we flush the gather queue like * this: * * while (gather) * take head of queue and prepend to decode queue. * if we copied a keyframe, decode the decode queue. * * After we flushed the gather queue, we add 4 to the (now empty) gather queue. * We get the following situation: * * gather queue: 4 * decode queue: 7 8 9 * * After we received 5 (Keyframe) and 6: * * gather queue: 6 5 4 * decode queue: 7 8 9 * * When we receive 1 (DISCONT) which triggers a flush of the gather queue: * * Copy head of the gather queue (6) to decode queue: * * gather queue: 5 4 * decode queue: 6 7 8 9 * * Copy head of the gather queue (5) to decode queue. This is a keyframe so we * can start decoding. * * gather queue: 4 * decode queue: 5 6 7 8 9 * * Decode frames in decode queue, store raw decoded data in output queue, we * can take the head of the decode queue and prepend the decoded result in the * output queue: * * gather queue: 4 * decode queue: * output queue: 9 8 7 6 5 * * Now output all the frames in the output queue, picking a frame from the * head of the queue. * * Copy head of the gather queue (4) to decode queue, we flushed the gather * queue and can now store input buffer in the gather queue: * * gather queue: 1 * decode queue: 4 * * When we receive EOS, the queue looks like: * * gather queue: 3 2 1 * decode queue: 4 * * Fill decode queue, first keyframe we copy is 2: * * gather queue: 1 * decode queue: 2 3 4 * * Decoded output: * * gather queue: 1 * decode queue: * output queue: 4 3 2 * * Leftover buffer 1 cannot be decoded and must be discarded. */ static GstFlowReturn theora_dec_flush_decode (GstTheoraDec * dec) { GstFlowReturn res = GST_FLOW_OK; while (dec->decode) { GstBuffer *buf = GST_BUFFER_CAST (dec->decode->data); GST_DEBUG_OBJECT (dec, "decoding buffer %p, ts %" GST_TIME_FORMAT, buf, GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf))); /* decode buffer, prepend to output queue */ res = theora_dec_decode_buffer (dec, buf); /* don't need it anymore now */ gst_buffer_unref (buf); dec->decode = g_list_delete_link (dec->decode, dec->decode); } while (dec->queued) { GstBuffer *buf = GST_BUFFER_CAST (dec->queued->data); /* iterate output queue an push downstream */ res = gst_pad_push (dec->srcpad, buf); dec->queued = g_list_delete_link (dec->queued, dec->queued); } return res; } static GstFlowReturn theora_dec_chain_reverse (GstTheoraDec * dec, gboolean discont, GstBuffer * buf) { GstFlowReturn res = GST_FLOW_OK; /* if we have a discont, move buffers to the decode list */ if (G_UNLIKELY (discont)) { GST_DEBUG_OBJECT (dec, "received discont,gathering buffers"); while (dec->gather) { GstBuffer *gbuf; guint8 data[1]; gbuf = GST_BUFFER_CAST (dec->gather->data); /* remove from the gather list */ dec->gather = g_list_delete_link (dec->gather, dec->gather); /* copy to decode queue */ dec->decode = g_list_prepend (dec->decode, gbuf); /* if we copied a keyframe, flush and decode the decode queue */ if (gst_buffer_extract (gbuf, 0, data, 1) == 1) { if ((data[0] & 0x40) == 0) { GST_DEBUG_OBJECT (dec, "copied keyframe"); res = theora_dec_flush_decode (dec); } } } } /* add buffer to gather queue */ GST_DEBUG_OBJECT (dec, "gathering buffer %p, size %" G_GSIZE_FORMAT, buf, gst_buffer_get_size (buf)); dec->gather = g_list_prepend (dec->gather, buf); return res; } static GstFlowReturn theora_dec_chain_forward (GstTheoraDec * dec, gboolean discont, GstBuffer * buffer) { GstFlowReturn result; result = theora_dec_decode_buffer (dec, buffer); gst_buffer_unref (buffer); return result; } static GstFlowReturn theora_dec_chain (GstPad * pad, GstObject * parent, GstBuffer * buf) { GstTheoraDec *dec; GstFlowReturn res; gboolean discont; dec = GST_THEORA_DEC (parent); /* peel of DISCONT flag */ discont = GST_BUFFER_IS_DISCONT (buf); /* resync on DISCONT */ if (G_UNLIKELY (discont)) { GST_DEBUG_OBJECT (dec, "received DISCONT buffer"); dec->need_keyframe = TRUE; dec->last_timestamp = -1; dec->discont = TRUE; } if (dec->segment.rate > 0.0) res = theora_dec_chain_forward (dec, discont, buf); else res = theora_dec_chain_reverse (dec, discont, buf); return res; } static GstStateChangeReturn theora_dec_change_state (GstElement * element, GstStateChange transition) { GstTheoraDec *dec = GST_THEORA_DEC (element); GstStateChangeReturn ret; switch (transition) { case GST_STATE_CHANGE_NULL_TO_READY: break; case GST_STATE_CHANGE_READY_TO_PAUSED: th_info_clear (&dec->info); th_comment_clear (&dec->comment); GST_DEBUG_OBJECT (dec, "Setting have_header to FALSE in READY->PAUSED"); dec->have_header = FALSE; dec->have_par = FALSE; gst_theora_dec_reset (dec); break; case GST_STATE_CHANGE_PAUSED_TO_PLAYING: break; default: break; } ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition); switch (transition) { case GST_STATE_CHANGE_PLAYING_TO_PAUSED: break; case GST_STATE_CHANGE_PAUSED_TO_READY: th_info_clear (&dec->info); th_comment_clear (&dec->comment); th_setup_free (dec->setup); dec->setup = NULL; th_decode_free (dec->decoder); dec->decoder = NULL; gst_theora_dec_reset (dec); if (dec->pool) { gst_buffer_pool_set_active (dec->pool, FALSE); gst_object_unref (dec->pool); dec->pool = NULL; } break; case GST_STATE_CHANGE_READY_TO_NULL: break; default: break; } return ret; } static void theora_dec_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec) { GstTheoraDec *dec = GST_THEORA_DEC (object); switch (prop_id) { case PROP_TELEMETRY_MV: dec->telemetry_mv = g_value_get_int (value); break; case PROP_TELEMETRY_MBMODE: dec->telemetry_mbmode = g_value_get_int (value); break; case PROP_TELEMETRY_QI: dec->telemetry_qi = g_value_get_int (value); break; case PROP_TELEMETRY_BITS: dec->telemetry_bits = g_value_get_int (value); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void theora_dec_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec) { GstTheoraDec *dec = GST_THEORA_DEC (object); switch (prop_id) { case PROP_TELEMETRY_MV: g_value_set_int (value, dec->telemetry_mv); break; case PROP_TELEMETRY_MBMODE: g_value_set_int (value, dec->telemetry_mbmode); break; case PROP_TELEMETRY_QI: g_value_set_int (value, dec->telemetry_qi); break; case PROP_TELEMETRY_BITS: g_value_set_int (value, dec->telemetry_bits); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } }