Browse code

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

Originally committed as revision 12180 to svn://svn.ffmpeg.org/ffmpeg/trunk

Nico Sabbi authored on 2008/02/23 19:57:38
Showing 2 changed files
... ...
@@ -31,6 +31,7 @@
31 31
 /* maximum size in which we look for synchronisation if
32 32
    synchronisation is lost */
33 33
 #define MAX_RESYNC_SIZE 4096
34
+#define REGISTRATION_DESCRIPTOR 5
34 35
 
35 36
 typedef struct PESContext PESContext;
36 37
 
... ...
@@ -478,6 +479,7 @@ static void pmt_cb(MpegTSFilter *filter, const uint8_t *section, int section_len
478 478
     int desc_list_len, desc_len, desc_tag;
479 479
     int comp_page = 0, anc_page = 0; /* initialize to kill warnings */
480 480
     char language[4] = {0}; /* initialize to kill warnings */
481
+    int has_hdmv_descr = 0;
481 482
 
482 483
 #ifdef DEBUG_SI
483 484
     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
505 505
     program_info_length = get16(&p, p_end) & 0xfff;
506 506
     if (program_info_length < 0)
507 507
         return;
508
+    while(program_info_length >= 2) {
509
+        uint8_t tag, len;
510
+        tag = get8(&p, p_end);
511
+        len = get8(&p, p_end);
512
+        if(len > program_info_length - 2)
513
+            //something else is broken, exit the program_descriptors_loop
514
+            break;
515
+        program_info_length -= len + 2;
516
+        if(tag == REGISTRATION_DESCRIPTOR && len >= 4) {
517
+            uint8_t bytes[4];
518
+            bytes[0] = get8(&p, p_end);
519
+            bytes[1] = get8(&p, p_end);
520
+            bytes[2] = get8(&p, p_end);
521
+            bytes[3] = get8(&p, p_end);
522
+            len -= 4;
523
+            if(bytes[0] == 'H' && bytes[1] == 'D' &&
524
+               bytes[2] == 'M' && bytes[3] == 'V')
525
+                has_hdmv_descr = 1;
526
+        }
527
+        p += len;
528
+    }
508 529
     p += program_info_length;
509 530
     if (p >= p_end)
510 531
         return;
... ...
@@ -588,7 +611,10 @@ static void pmt_cb(MpegTSFilter *filter, const uint8_t *section, int section_len
588 588
         case STREAM_TYPE_AUDIO_AAC:
589 589
         case STREAM_TYPE_AUDIO_AC3:
590 590
         case STREAM_TYPE_AUDIO_DTS:
591
+        case STREAM_TYPE_AUDIO_HDMV_DTS:
591 592
         case STREAM_TYPE_SUBTITLE_DVB:
593
+            if(stream_type == STREAM_TYPE_AUDIO_HDMV_DTS && !has_hdmv_descr)
594
+                break;
592 595
             if(ts->pids[pid] && ts->pids[pid]->type == MPEGTS_PES){
593 596
                 pes= ts->pids[pid]->u.pes_filter.opaque;
594 597
                 st= pes->st;
... ...
@@ -923,6 +949,7 @@ static AVStream* new_pes_av_stream(PESContext *pes, uint32_t code)
923 923
         codec_id = CODEC_ID_AC3;
924 924
         break;
925 925
     case STREAM_TYPE_AUDIO_DTS:
926
+    case STREAM_TYPE_AUDIO_HDMV_DTS:
926 927
         codec_type = CODEC_TYPE_AUDIO;
927 928
         codec_id = CODEC_ID_DTS;
928 929
         break;
... ...
@@ -55,6 +55,7 @@
55 55
 
56 56
 #define STREAM_TYPE_AUDIO_AC3       0x81
57 57
 #define STREAM_TYPE_AUDIO_DTS       0x8a
58
+#define STREAM_TYPE_AUDIO_HDMV_DTS  0x82
58 59
 
59 60
 #define STREAM_TYPE_SUBTITLE_DVB    0x100
60 61