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mpegtsdemux: Use the ISO 639 language code descriptor to send tags.

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If there is an ISO 639 language descriptor for a stream, send a language
code tag so that players can show a meaningful language for the audio and
subtitle streams.
This commit is contained in:
Jan Schmidt 2009-05-29 15:01:42 +01:00
parent 8d1166bb85
commit f3a9f52536
1 changed files with 41 additions and 4 deletions
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45
gst/mpegdemux/gstmpegtsdemux.c
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@ -822,6 +822,40 @@ no_pcr_stream:
}
}
static void
gst_mpegts_demux_send_tags_for_stream (GstMpegTSDemux * demux,
GstMpegTSStream * stream)
{
GstTagList *list = NULL;
if (stream->ES_info) {
guint8 *iso639_languages =
gst_mpeg_descriptor_find (stream->ES_info, DESC_ISO_639_LANGUAGE);
gint i;
if (iso639_languages) {
if (DESC_ISO_639_LANGUAGE_codes_n (iso639_languages)) {
gchar lang_code[4];
gchar *language_n = (gchar *)
DESC_ISO_639_LANGUAGE_language_code_nth (iso639_languages, i);
lang_code[0] = language_n[0];
lang_code[1] = language_n[1];
lang_code[2] = language_n[2];
lang_code[3] = 0;
if (!list)
list = gst_tag_list_new ();
gst_tag_list_add (list, GST_TAG_MERGE_REPLACE,
GST_TAG_LANGUAGE_CODE, lang_code, NULL);
}
}
}
if (list) {
GST_DEBUG_OBJECT (demux, "Sending tags %p for pad %s:%s",
list, GST_DEBUG_PAD_NAME (stream->pad));
gst_element_found_tags_for_pad (GST_ELEMENT (demux), stream->pad, list);
}
}
#ifndef GST_FLOW_IS_SUCCESS
#define GST_FLOW_IS_SUCCESS(ret) ((ret) >= GST_FLOW_OK)
#endif
@ -890,8 +924,8 @@ gst_mpegts_demux_data_cb (GstPESFilter * filter, gboolean first,
* to drop. */
if (stream->PMT_pid <= MPEGTS_MAX_PID && demux->streams[stream->PMT_pid]
&& demux->streams[demux->streams[stream->PMT_pid]->PMT.PCR_PID]
&& demux->streams[demux->streams[stream->PMT_pid]->PMT.PCR_PID]->
discont_PCR) {
&& demux->streams[demux->streams[stream->PMT_pid]->PMT.
PCR_PID]->discont_PCR) {
GST_WARNING_OBJECT (demux, "middle of discont, dropping");
goto bad_timestamp;
}
@ -913,8 +947,8 @@ gst_mpegts_demux_data_cb (GstPESFilter * filter, gboolean first,
*/
if (stream->PMT_pid <= MPEGTS_MAX_PID && demux->streams[stream->PMT_pid]
&& demux->streams[demux->streams[stream->PMT_pid]->PMT.PCR_PID]
&& demux->streams[demux->streams[stream->PMT_pid]->PMT.PCR_PID]->
last_PCR > 0) {
&& demux->streams[demux->streams[stream->PMT_pid]->PMT.
PCR_PID]->last_PCR > 0) {
GST_DEBUG_OBJECT (demux, "timestamps wrapped before noticed in PCR");
time = MPEGTIME_TO_GSTTIME (pts) + stream->base_time +
MPEGTIME_TO_GSTTIME ((guint64) (1) << 33);
@ -1026,6 +1060,9 @@ gst_mpegts_demux_data_cb (GstPESFilter * filter, gboolean first,
/* send new_segment */
gst_mpegts_demux_send_new_segment (demux, stream, pts);
/* send tags */
gst_mpegts_demux_send_tags_for_stream (demux, stream);
}
GST_DEBUG_OBJECT (srcpad, "pushing buffer");