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tsdemux: Add conditions to identify ATSC EAC3

Browse source 
https://bugzilla.gnome.org/show_bug.cgi?id=770528
This commit is contained in:
Wonchul Lee 2016-09-13 22:07:05 +09:00 committed by Olivier Crête
parent 5771e6a066
commit 69b866326e
3 changed files with 16 additions and 0 deletions
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1
gst-libs/gst/mpegts/gstmpegtsdescriptor.h
View file

@ -174,6 +174,7 @@ typedef enum {
GST_MTS_DESC_ATSC_REDISTRIBUTION_CONTROL = 0xAA,
GST_MTS_DESC_ATSC_GENRE = 0xAB,
GST_MTS_DESC_ATSC_PRIVATE_INFORMATION = 0xAD,
GST_MTS_DESC_ATSC_EAC3 = 0xCC,
/* ATSC A/53:3 2009 */
GST_MTS_DESC_ATSC_ENHANCED_SIGNALING = 0xB2,

1
gst/mpegtsdemux/gstmpegdesc.h
View file

@ -233,5 +233,6 @@
#define DRF_ID_HEVC 0x48455643
#define DRF_ID_KLVA 0x4b4c5641 /* defined in RP217 */
#define DRF_ID_OPUS 0x4f707573
#define DRF_ID_EAC3 0x45414333 /* defined in A/52 Annex G */
#endif /* __GST_MPEG_DESC_H__ */

14
gst/mpegtsdemux/tsdemux.c
View file

@ -1507,10 +1507,24 @@ create_pad_for_stream (MpegTSBase * base, MpegTSBaseStream * bstream,
caps = gst_caps_new_empty_simple ("audio/x-ac3");
break;
case ST_PS_AUDIO_EAC3:
{
/* ATSC_ENHANCED_AC3 */
if (bstream->registration_id == DRF_ID_EAC3 ||
mpegts_get_descriptor_from_stream (bstream, GST_MTS_DESC_ATSC_EAC3)) {
is_audio = TRUE;
caps = gst_caps_new_empty_simple ("audio/x-eac3");
break;
}
GST_ELEMENT_WARNING (demux, STREAM, DEMUX,
("Assuming ATSC E-AC3 audio stream."),
("ATSC E-AC3 stream type found but no guarantee way found to "
"differentiate among other standards (DVB, ISDB and etc..)"));
is_audio = TRUE;
caps = gst_caps_new_empty_simple ("audio/x-eac3");
break;
}
case ST_PS_AUDIO_LPCM2:
is_audio = TRUE;
caps = gst_caps_new_empty_simple ("audio/x-private2-lpcm");