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treat stream_type==0x82 as AUDIO_DTS when the program has a REGISTRATION_DESCRIPTOR with the value HDMV; approved by Mans

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Originally committed as revision 12180 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Nico Sabbi 2008-02-23 10:57:38 +00:00
parent a939a005f9
commit a45b40c496
2 changed files with 28 additions and 0 deletions
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27
libavformat/mpegts.c
View File

@ -31,6 +31,7 @@
/* maximum size in which we look for synchronisation if
synchronisation is lost */
#define MAX_RESYNC_SIZE 4096
#define REGISTRATION_DESCRIPTOR 5
typedef struct PESContext PESContext;
@ -478,6 +479,7 @@ static void pmt_cb(MpegTSFilter *filter, const uint8_t *section, int section_len
int desc_list_len, desc_len, desc_tag;
int comp_page = 0, anc_page = 0; /* initialize to kill warnings */
char language[4] = {0}; /* initialize to kill warnings */
int has_hdmv_descr = 0;
#ifdef DEBUG_SI
av_log(ts->stream, AV_LOG_DEBUG, "PMT: len %i\n", section_len);
@ -505,6 +507,27 @@ static void pmt_cb(MpegTSFilter *filter, const uint8_t *section, int section_len
program_info_length = get16(&p, p_end) & 0xfff;
if (program_info_length < 0)
return;
while(program_info_length >= 2) {
uint8_t tag, len;
tag = get8(&p, p_end);
len = get8(&p, p_end);
if(len > program_info_length - 2)
//something else is broken, exit the program_descriptors_loop
break;
program_info_length -= len + 2;
if(tag == REGISTRATION_DESCRIPTOR && len >= 4) {
uint8_t bytes[4];
bytes[0] = get8(&p, p_end);
bytes[1] = get8(&p, p_end);
bytes[2] = get8(&p, p_end);
bytes[3] = get8(&p, p_end);
len -= 4;
if(bytes[0] == 'H' && bytes[1] == 'D' &&
bytes[2] == 'M' && bytes[3] == 'V')
has_hdmv_descr = 1;
}
p += len;
}
p += program_info_length;
if (p >= p_end)
return;
@ -588,7 +611,10 @@ static void pmt_cb(MpegTSFilter *filter, const uint8_t *section, int section_len
case STREAM_TYPE_AUDIO_AAC:
case STREAM_TYPE_AUDIO_AC3:
case STREAM_TYPE_AUDIO_DTS:
case STREAM_TYPE_AUDIO_HDMV_DTS:
case STREAM_TYPE_SUBTITLE_DVB:
if(stream_type == STREAM_TYPE_AUDIO_HDMV_DTS && !has_hdmv_descr)
break;
if(ts->pids[pid] && ts->pids[pid]->type == MPEGTS_PES){
pes= ts->pids[pid]->u.pes_filter.opaque;
st= pes->st;
@ -923,6 +949,7 @@ static AVStream* new_pes_av_stream(PESContext *pes, uint32_t code)
codec_id = CODEC_ID_AC3;
break;
case STREAM_TYPE_AUDIO_DTS:
case STREAM_TYPE_AUDIO_HDMV_DTS:
codec_type = CODEC_TYPE_AUDIO;
codec_id = CODEC_ID_DTS;
break;

1
libavformat/mpegts.h
View File

@ -55,6 +55,7 @@
#define STREAM_TYPE_AUDIO_AC3 0x81
#define STREAM_TYPE_AUDIO_DTS 0x8a
#define STREAM_TYPE_AUDIO_HDMV_DTS 0x82
#define STREAM_TYPE_SUBTITLE_DVB 0x100