static GstStateChangeReturn speex_dec_change_state (GstElement * element, GstStateChange transition) { GstStateChangeReturn ret; GstSpeexDec *dec = GST_SPEEX_DEC (element); switch (transition) { case GST_STATE_CHANGE_NULL_TO_READY: case GST_STATE_CHANGE_READY_TO_PAUSED: case GST_STATE_CHANGE_PAUSED_TO_PLAYING: default: break; } ret = parent_class->change_state (element, transition); if (ret != GST_STATE_CHANGE_SUCCESS) return ret; switch (transition) { case GST_STATE_CHANGE_PLAYING_TO_PAUSED: break; case GST_STATE_CHANGE_PAUSED_TO_READY: gst_speex_dec_reset (dec); break; case GST_STATE_CHANGE_READY_TO_NULL: break; default: break; } return ret; }
static gboolean speex_dec_sink_query (GstPad * pad, GstQuery * query) { GstSpeexDec *dec; gboolean res; dec = GST_SPEEX_DEC (gst_pad_get_parent (pad)); switch (GST_QUERY_TYPE (query)) { 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); res = speex_dec_convert (pad, src_fmt, src_val, &dest_fmt, &dest_val); if (res) { gst_query_set_convert (query, src_fmt, src_val, dest_fmt, dest_val); } break; } default: res = gst_pad_query_default (pad, query); break; } gst_object_unref (dec); return res; }
static GstFlowReturn speex_dec_chain (GstPad * pad, GstBuffer * buf) { GstFlowReturn res; GstSpeexDec *dec; dec = GST_SPEEX_DEC (gst_pad_get_parent (pad)); switch (dec->packetno) { case 0: res = speex_dec_chain_parse_header (dec, buf); break; case 1: res = speex_dec_chain_parse_comments (dec, buf); break; default: { res = speex_dec_chain_parse_data (dec, buf, GST_BUFFER_TIMESTAMP (buf), GST_BUFFER_DURATION (buf)); break; } } dec->packetno++; gst_buffer_unref (buf); gst_object_unref (dec); return res; }
static GstFlowReturn gst_speex_dec_handle_frame (GstAudioDecoder * bdec, GstBuffer * buf) { GstFlowReturn res; GstSpeexDec *dec; /* no fancy draining */ if (G_UNLIKELY (!buf)) return GST_FLOW_OK; dec = GST_SPEEX_DEC (bdec); /* If we have the streamheader and vorbiscomment from the caps already * ignore them here */ if (dec->streamheader && dec->vorbiscomment) { if (GST_BUFFER_SIZE (dec->streamheader) == GST_BUFFER_SIZE (buf) && memcmp (GST_BUFFER_DATA (dec->streamheader), GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf)) == 0) { GST_DEBUG_OBJECT (dec, "found streamheader"); gst_audio_decoder_finish_frame (bdec, NULL, 1); res = GST_FLOW_OK; } else if (GST_BUFFER_SIZE (dec->vorbiscomment) == GST_BUFFER_SIZE (buf) && memcmp (GST_BUFFER_DATA (dec->vorbiscomment), GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf)) == 0) { GST_DEBUG_OBJECT (dec, "found vorbiscomments"); gst_audio_decoder_finish_frame (bdec, NULL, 1); res = GST_FLOW_OK; } else { res = gst_speex_dec_parse_data (dec, buf); } } else { /* Otherwise fall back to packet counting and assume that the * first two packets are the headers. */ switch (dec->packetno) { case 0: GST_DEBUG_OBJECT (dec, "counted streamheader"); res = gst_speex_dec_parse_header (dec, buf); gst_audio_decoder_finish_frame (bdec, NULL, 1); break; case 1: GST_DEBUG_OBJECT (dec, "counted vorbiscomments"); res = gst_speex_dec_parse_comments (dec, buf); gst_audio_decoder_finish_frame (bdec, NULL, 1); break; default: { res = gst_speex_dec_parse_data (dec, buf); break; } } } dec->packetno++; return res; }
static gboolean speex_dec_src_query (GstPad * pad, GstQuery * query) { GstSpeexDec *dec; gboolean res = FALSE; dec = GST_SPEEX_DEC (gst_pad_get_parent (pad)); switch (GST_QUERY_TYPE (query)) { case GST_QUERY_POSITION:{ GstSegment segment; GstFormat format; gint64 cur; gst_query_parse_position (query, &format, NULL); GST_PAD_STREAM_LOCK (dec->sinkpad); segment = dec->segment; GST_PAD_STREAM_UNLOCK (dec->sinkpad); if (segment.format != GST_FORMAT_TIME) { GST_DEBUG_OBJECT (dec, "segment not initialised yet"); break; } if ((res = speex_dec_convert (dec->srcpad, GST_FORMAT_TIME, segment.last_stop, &format, &cur))) { gst_query_set_position (query, format, cur); } break; } case GST_QUERY_DURATION:{ GstFormat format = GST_FORMAT_TIME; gint64 dur; /* get duration from demuxer */ if (!gst_pad_query_peer_duration (dec->sinkpad, &format, &dur)) break; gst_query_parse_duration (query, &format, NULL); /* and convert it into the requested format */ if ((res = speex_dec_convert (dec->srcpad, GST_FORMAT_TIME, dur, &format, &dur))) { gst_query_set_duration (query, format, dur); } break; } default: res = gst_pad_query_default (pad, query); break; } gst_object_unref (dec); return res; }
static gboolean gst_speex_dec_stop (GstAudioDecoder * dec) { GstSpeexDec *sd = GST_SPEEX_DEC (dec); GST_DEBUG_OBJECT (dec, "stop"); gst_speex_dec_reset (sd); return TRUE; }
static gboolean gst_speex_dec_start (GstAudioDecoder * dec) { GstSpeexDec *sd = GST_SPEEX_DEC (dec); GST_DEBUG_OBJECT (dec, "start"); gst_speex_dec_reset (sd); /* we know about concealment */ gst_audio_decoder_set_plc_aware (dec, TRUE); return TRUE; }
static gboolean speex_dec_src_event (GstPad * pad, GstEvent * event) { gboolean res = FALSE; GstSpeexDec *dec = GST_SPEEX_DEC (gst_pad_get_parent (pad)); GST_LOG_OBJECT (dec, "handling %s event", GST_EVENT_TYPE_NAME (event)); 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; gst_event_parse_seek (event, &rate, &format, &flags, &cur_type, &cur, &stop_type, &stop); /* 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 = speex_dec_convert (pad, format, cur, &tformat, &tcur))) break; if (!(res = speex_dec_convert (pad, format, stop, &tformat, &tstop))) break; /* 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_LOG_OBJECT (dec, "seek to %" GST_TIME_FORMAT, GST_TIME_ARGS (tcur)); res = gst_pad_push_event (dec->sinkpad, real_seek); gst_event_unref (event); break; } default: res = gst_pad_event_default (pad, event); break; } gst_object_unref (dec); return res; }
static void gst_speex_dec_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec) { GstSpeexDec *speexdec; speexdec = GST_SPEEX_DEC (object); switch (prop_id) { case ARG_ENH: speexdec->enh = g_value_get_boolean (value); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } }
static gboolean gst_speex_dec_set_format (GstAudioDecoder * bdec, GstCaps * caps) { GstSpeexDec *dec = GST_SPEEX_DEC (bdec); gboolean ret = TRUE; GstStructure *s; const GValue *streamheader; s = gst_caps_get_structure (caps, 0); if ((streamheader = gst_structure_get_value (s, "streamheader")) && G_VALUE_HOLDS (streamheader, GST_TYPE_ARRAY) && gst_value_array_get_size (streamheader) >= 2) { const GValue *header, *vorbiscomment; GstBuffer *buf; GstFlowReturn res = GST_FLOW_OK; header = gst_value_array_get_value (streamheader, 0); if (header && G_VALUE_HOLDS (header, GST_TYPE_BUFFER)) { buf = gst_value_get_buffer (header); res = gst_speex_dec_parse_header (dec, buf); if (res != GST_FLOW_OK) goto done; gst_buffer_replace (&dec->streamheader, buf); } vorbiscomment = gst_value_array_get_value (streamheader, 1); if (vorbiscomment && G_VALUE_HOLDS (vorbiscomment, GST_TYPE_BUFFER)) { buf = gst_value_get_buffer (vorbiscomment); res = gst_speex_dec_parse_comments (dec, buf); if (res != GST_FLOW_OK) goto done; gst_buffer_replace (&dec->vorbiscomment, buf); } } done: return ret; }
static gboolean speex_dec_sink_event (GstPad * pad, GstEvent * event) { GstSpeexDec *dec; gboolean ret = FALSE; dec = GST_SPEEX_DEC (gst_pad_get_parent (pad)); GST_LOG_OBJECT (dec, "handling %s event", GST_EVENT_TYPE_NAME (event)); switch (GST_EVENT_TYPE (event)) { case GST_EVENT_NEWSEGMENT:{ GstFormat format; gdouble rate, arate; gint64 start, stop, time; gboolean update; gst_event_parse_new_segment_full (event, &update, &rate, &arate, &format, &start, &stop, &time); if (format != GST_FORMAT_TIME) goto newseg_wrong_format; if (rate <= 0.0) goto newseg_wrong_rate; if (update) { /* time progressed without data, see if we can fill the gap with * some concealment data */ if (dec->segment.last_stop < start) { GstClockTime duration; duration = start - dec->segment.last_stop; speex_dec_chain_parse_data (dec, NULL, dec->segment.last_stop, duration); } } /* now configure the values */ gst_segment_set_newsegment_full (&dec->segment, update, rate, arate, GST_FORMAT_TIME, start, stop, time); GST_DEBUG_OBJECT (dec, "segment now: cur = %" GST_TIME_FORMAT " [%" GST_TIME_FORMAT " - %" GST_TIME_FORMAT "]", GST_TIME_ARGS (dec->segment.last_stop), GST_TIME_ARGS (dec->segment.start), GST_TIME_ARGS (dec->segment.stop)); ret = gst_pad_push_event (dec->srcpad, event); break; } default: ret = gst_pad_event_default (pad, event); break; } gst_object_unref (dec); return ret; /* ERRORS */ newseg_wrong_format: { GST_DEBUG_OBJECT (dec, "received non TIME newsegment"); gst_object_unref (dec); return FALSE; } newseg_wrong_rate: { GST_DEBUG_OBJECT (dec, "negative rates not supported yet"); gst_object_unref (dec); return FALSE; } }
static gboolean speex_dec_convert (GstPad * pad, GstFormat src_format, gint64 src_value, GstFormat * dest_format, gint64 * dest_value) { gboolean res = TRUE; GstSpeexDec *dec; guint64 scale = 1; dec = GST_SPEEX_DEC (gst_pad_get_parent (pad)); if (src_format == *dest_format) { *dest_value = src_value; res = TRUE; goto cleanup; } if (dec->packetno < 1) { res = FALSE; goto cleanup; } if (pad == dec->sinkpad && (src_format == GST_FORMAT_BYTES || *dest_format == GST_FORMAT_BYTES)) { res = FALSE; goto cleanup; } switch (src_format) { case GST_FORMAT_TIME: switch (*dest_format) { case GST_FORMAT_BYTES: scale = 2 * dec->header->nb_channels; case GST_FORMAT_DEFAULT: *dest_value = gst_util_uint64_scale_int (scale * src_value, dec->header->rate, GST_SECOND); break; default: res = FALSE; break; } break; case GST_FORMAT_DEFAULT: switch (*dest_format) { case GST_FORMAT_BYTES: *dest_value = src_value * 2 * dec->header->nb_channels; break; case GST_FORMAT_TIME: *dest_value = gst_util_uint64_scale_int (src_value, GST_SECOND, dec->header->rate); break; default: res = FALSE; break; } break; case GST_FORMAT_BYTES: switch (*dest_format) { case GST_FORMAT_DEFAULT: *dest_value = src_value / (2 * dec->header->nb_channels); break; case GST_FORMAT_TIME: *dest_value = gst_util_uint64_scale_int (src_value, GST_SECOND, dec->header->rate * 2 * dec->header->nb_channels); break; default: res = FALSE; break; } break; default: res = FALSE; break; } cleanup: gst_object_unref (dec); return res; }
static GstFlowReturn gst_speex_dec_handle_frame (GstAudioDecoder * bdec, GstBuffer * buf) { GstFlowReturn res = GST_FLOW_OK; GstSpeexDec *dec; gboolean header_packet = FALSE; /* no fancy draining */ if (G_UNLIKELY (!buf)) return GST_FLOW_OK; dec = GST_SPEEX_DEC (bdec); switch (dec->packetno) { case 0: GST_DEBUG_OBJECT (dec, "expecting streamheader"); header_packet = TRUE; if (!memcmp_buffers (dec->streamheader, buf)) { res = gst_speex_dec_parse_header (dec, buf); if (res == GST_FLOW_NO_HEADER) { header_packet = FALSE; GST_INFO_OBJECT (dec, "No streamheader in first buffer"); if (dec->streamheader == NULL) { GST_ERROR_OBJECT (dec, "Can't proceed without a header"); return GST_FLOW_ERROR; } else { GST_INFO_OBJECT (dec, "Using streamheader from caps"); } } /* we prefer "inband" streamheaders to the ones in caps */ if (res == GST_FLOW_OK) { GST_DEBUG_OBJECT (dec, "found streamheader"); gst_buffer_replace (&dec->streamheader, buf); } } break; case 1: GST_DEBUG_OBJECT (dec, "expecting vorbiscomment"); header_packet = TRUE; if (!memcmp_buffers (dec->vorbiscomment, buf)) { res = gst_speex_dec_parse_comments (dec, buf); if (res == GST_FLOW_NO_HEADER) { header_packet = FALSE; GST_INFO_OBJECT (dec, "No vorbisheader in second buffer"); } if (res == GST_FLOW_OK) { GST_DEBUG_OBJECT (dec, "found vorbiscomment"); gst_buffer_replace (&dec->vorbiscomment, buf); } } break; default: break; } if (header_packet) gst_audio_decoder_finish_frame (bdec, NULL, 1); else res = gst_speex_dec_parse_data (dec, buf); dec->packetno++; return res; }