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tsdemux: Support more DTS/AC3 descriptors

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This commit is contained in:
Thibault Saunier 2012-02-20 17:32:21 -03:00 committed by Edward Hervey
parent 6ef0ae4ffe
commit 67fd590e9a
2 changed files with 58 additions and 15 deletions
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16
gst/mpegtsdemux/gstmpegdesc.h
View file

@ -140,6 +140,7 @@
#define DESC_DVB_EXTENSION 0x7F
/* 0x80 - 0xFE are user defined */
#define DESC_DTG_LOGICAL_CHANNEL 0x83 /* from DTG D-Book */
#define DESC_AC3_AUDIO_STREAM 0x81
/* 0xFF is forbidden */
/* common for all descriptors */
@ -315,14 +316,21 @@
/* DVB Carousel Identifier Descriptor */
#define DESC_DVB_CAROUSEL_IDENTIFIER_carousel_id(desc) (GST_READ_UINT32_BE((desc) + 2))
/* AC3_audio_stream_descriptor */
#define DESC_AC_AUDIO_STREAM_bsid(desc) ((desc)[2] & 0x1f)
/* registration_descriptor format IDs */
#define DRF_ID_HDMV 0x48444d56
#define DRF_ID_VC1 0x56432D31 /* defined in RP227 */
#define DRF_ID_DTS1 0x44545331
#define DRF_ID_DTS2 0x44545332
#define DRF_ID_DTS3 0x44545333
typedef struct {
guint n_desc;
guint8 data_length;
guint8 *data;
typedef struct
{
guint n_desc;
guint8 data_length;
guint8 *data;
} GstMPEGDescriptor;
void gst_mpegtsdesc_init_debug (void);

57
gst/mpegtsdemux/tsdemux.c
View file

@ -1020,8 +1020,7 @@ create_pad_for_stream (MpegTSBase * base, MpegTSBaseStream * bstream,
break;
case ST_PRIVATE_DATA:
GST_LOG ("private data");
desc =
mpegts_get_descriptor_from_stream ((MpegTSBaseStream *) stream,
desc = mpegts_get_descriptor_from_stream ((MpegTSBaseStream *) stream,
DESC_DVB_AC3);
if (desc) {
GST_LOG ("ac3 audio");
@ -1031,8 +1030,8 @@ create_pad_for_stream (MpegTSBase * base, MpegTSBaseStream * bstream,
g_free (desc);
break;
}
desc =
mpegts_get_descriptor_from_stream ((MpegTSBaseStream *) stream,
desc = mpegts_get_descriptor_from_stream ((MpegTSBaseStream *) stream,
DESC_DVB_ENHANCED_AC3);
if (desc) {
GST_LOG ("ac3 audio");
@ -1042,8 +1041,7 @@ create_pad_for_stream (MpegTSBase * base, MpegTSBaseStream * bstream,
g_free (desc);
break;
}
desc =
mpegts_get_descriptor_from_stream ((MpegTSBaseStream *) stream,
desc = mpegts_get_descriptor_from_stream ((MpegTSBaseStream *) stream,
DESC_DVB_TELETEXT);
if (desc) {
GST_LOG ("teletext");
@ -1064,6 +1062,26 @@ create_pad_for_stream (MpegTSBase * base, MpegTSBaseStream * bstream,
g_free (desc);
break;
}
desc = mpegts_get_descriptor_from_stream ((MpegTSBaseStream *) stream,
DESC_REGISTRATION);
if (desc) {
switch (DESC_REGISTRATION_format_identifier (desc)) {
case DRF_ID_DTS1:
case DRF_ID_DTS2:
case DRF_ID_DTS3:
/* SMPTE registered DTS */
GST_LOG ("subtitling");
template = gst_static_pad_template_get (&private_template);
name = g_strdup_printf ("private_%04x", bstream->pid);
caps = gst_caps_new_simple ("audio/x-dts", NULL);
break;
}
g_free (desc);
}
if (template)
break;
/* hack for itv hd (sid 10510, video pid 3401 */
if (program->program_number == 10510 && bstream->pid == 3401) {
template = gst_static_pad_template_get (&video_template);
@ -1167,18 +1185,35 @@ create_pad_for_stream (MpegTSBase * base, MpegTSBaseStream * bstream,
desc = mpegts_get_descriptor_from_program (program, DESC_REGISTRATION);
if (desc) {
if (DESC_REGISTRATION_format_identifier (desc) == DRF_ID_HDMV) {
template = gst_static_pad_template_get (&audio_template);
name = g_strdup_printf ("audio_%04x", bstream->pid);
caps = gst_caps_new_simple ("audio/x-eac3", NULL);
guint8 *ac3_desc;
/* ATSC ac3 audio descriptor */
ac3_desc =
mpegts_get_descriptor_from_stream ((MpegTSBaseStream *) stream,
DESC_AC3_AUDIO_STREAM);
if (ac3_desc && DESC_AC_AUDIO_STREAM_bsid (ac3_desc) != 16) {
GST_LOG ("ac3 audio");
template = gst_static_pad_template_get (&audio_template);
name = g_strdup_printf ("audio_%04x", bstream->pid);
caps = gst_caps_new_simple ("audio/x-ac3", NULL);
g_free (ac3_desc);
} else {
template = gst_static_pad_template_get (&audio_template);
name = g_strdup_printf ("audio_%04x", bstream->pid);
caps = gst_caps_new_simple ("audio/x-eac3", NULL);
}
}
g_free (desc);
}
if (template)
break;
/* DVB_ENHANCED_AC3 */
desc =
mpegts_get_descriptor_from_stream ((MpegTSBaseStream *) stream,
desc = mpegts_get_descriptor_from_stream ((MpegTSBaseStream *) stream,
DESC_DVB_ENHANCED_AC3);
if (desc) {
template = gst_static_pad_template_get (&audio_template);