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FFmpeg
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simplify and merge 

Originally committed as revision 19006 to svn://svn.ffmpeg.org/ffmpeg/trunk
tags/v0.6
Baptiste Coudurier 16 years ago
parent
08f94e989f
commit
f42d1d824e
1 changed files with 41 additions and 49 deletions
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  1. +41
    -49
      libavformat/mpegts.c

+ 41
- 49
libavformat/mpegts.c View File

@@ -533,8 +533,7 @@ static void mpegts_find_stream_type(AVStream *st,
}
}

static AVStream *new_pes_av_stream(PESContext *pes, uint32_t code,
uint32_t prog_reg_desc, uint32_t reg_desc)
static AVStream *new_pes_av_stream(PESContext *pes, uint32_t prog_reg_desc)
{
AVStream *st = av_new_stream(pes->stream, pes->pid);

@@ -548,19 +547,15 @@ static AVStream *new_pes_av_stream(PESContext *pes, uint32_t code,
st->need_parsing = AVSTREAM_PARSE_FULL;
pes->st = st;

dprintf(pes->stream, "stream_type=%x prog_reg_desc=%.4s reg_desc=%.4s\n",
pes->stream_type, (char*)&prog_reg_desc, (char*)&reg_desc);
dprintf(pes->stream, "stream_type=%x pid=%x prog_reg_desc=%.4s\n",
pes->stream_type, pes->pid, (char*)&prog_reg_desc);

if (pes->stream_type == 0x06) { // private data carrying pes data
mpegts_find_stream_type(st, reg_desc, REGD_types);
} else {
mpegts_find_stream_type(st, pes->stream_type, ISO_types);
if (prog_reg_desc == AV_RL32("HDMV") &&
st->codec->codec_id == CODEC_ID_PROBE)
mpegts_find_stream_type(st, pes->stream_type, HDMV_types);
if (st->codec->codec_id == CODEC_ID_PROBE)
mpegts_find_stream_type(st, pes->stream_type, MISC_types);
}

return st;
}
@@ -624,8 +619,6 @@ static void pmt_cb(MpegTSFilter *filter, const uint8_t *section, int section_len
if (p >= p_end)
return;
for(;;) {
reg_desc = 0;
language[0] = 0;
st = 0;
stream_type = get8(&p, p_end);
if (stream_type < 0)
@@ -633,6 +626,25 @@ static void pmt_cb(MpegTSFilter *filter, const uint8_t *section, int section_len
pid = get16(&p, p_end) & 0x1fff;
if (pid < 0)
break;

/* now create ffmpeg stream */
if (ts->pids[pid] && ts->pids[pid]->type == MPEGTS_PES) {
pes = ts->pids[pid]->u.pes_filter.opaque;
st = pes->st;
} else {
if (ts->pids[pid]) mpegts_close_filter(ts, ts->pids[pid]); //wrongly added sdt filter probably
pes = add_pes_stream(ts, pid, pcr_pid, stream_type);
if (pes)
st = new_pes_av_stream(pes, prog_reg_desc);
}

if (!st)
return;

add_pid_to_pmt(ts, h->id, pid);

av_program_add_stream_index(ts->stream, h->id, st->index);

desc_list_len = get16(&p, p_end) & 0xfff;
if (desc_list_len < 0)
break;
@@ -643,15 +655,6 @@ static void pmt_cb(MpegTSFilter *filter, const uint8_t *section, int section_len
desc_tag = get8(&p, desc_list_end);
if (desc_tag < 0)
break;
if (stream_type == STREAM_TYPE_PRIVATE_DATA) {
if((desc_tag == 0x6A) || (desc_tag == 0x7A)) {
/*assume DVB AC-3 Audio*/
stream_type = STREAM_TYPE_AUDIO_AC3;
} else if(desc_tag == 0x7B) {
/* DVB DTS audio */
stream_type = STREAM_TYPE_AUDIO_DTS;
}
}
desc_len = get8(&p, desc_list_end);
if (desc_len < 0)
break;
@@ -663,10 +666,20 @@ static void pmt_cb(MpegTSFilter *filter, const uint8_t *section, int section_len
desc_tag, desc_len);

switch(desc_tag) {
case 0x6a: /* AC-3 descriptor */
case 0x7a: /* AC-3 descriptor */
st->codec->codec_type = CODEC_TYPE_AUDIO;
st->codec->codec_id = CODEC_ID_AC3;
break;
case 0x7b:
st->codec->codec_type = CODEC_TYPE_AUDIO;
st->codec->codec_id = CODEC_ID_DTS;
break;
case 0x59: /* subtitling descriptor */
if (stream_type == STREAM_TYPE_PRIVATE_DATA)
stream_type = 0x100; // demuxer internal

if (stream_type == STREAM_TYPE_PRIVATE_DATA) {
st->codec->codec_type = CODEC_TYPE_SUBTITLE;
st->codec->codec_id = CODEC_ID_DVB_SUBTITLE;
}
language[0] = get8(&p, desc_end);
language[1] = get8(&p, desc_end);
language[2] = get8(&p, desc_end);
@@ -674,16 +687,21 @@ static void pmt_cb(MpegTSFilter *filter, const uint8_t *section, int section_len
get8(&p, desc_end);
comp_page = get16(&p, desc_end);
anc_page = get16(&p, desc_end);

st->codec->sub_id = (anc_page << 16) | comp_page;
av_metadata_set(&st->metadata, "language", language);
break;
case 0x0a: /* ISO 639 language descriptor */
language[0] = get8(&p, desc_end);
language[1] = get8(&p, desc_end);
language[2] = get8(&p, desc_end);
language[3] = 0;
av_metadata_set(&st->metadata, "language", language);
break;
case 0x05: /* registration descriptor */
reg_desc = bytestream_get_le32(&p);
if (st->codec->codec_id == CODEC_ID_PROBE &&
stream_type == STREAM_TYPE_PRIVATE_DATA)
mpegts_find_stream_type(st, reg_desc, REGD_types);
break;
default:
break;
@@ -691,32 +709,6 @@ static void pmt_cb(MpegTSFilter *filter, const uint8_t *section, int section_len
p = desc_end;
}
p = desc_list_end;

dprintf(ts->stream, "stream_type=%x pid=0x%x\n",
stream_type, pid);

/* now create ffmpeg stream */
if (ts->pids[pid] && ts->pids[pid]->type == MPEGTS_PES) {
pes= ts->pids[pid]->u.pes_filter.opaque;
st= pes->st;
} else {
if (ts->pids[pid]) mpegts_close_filter(ts, ts->pids[pid]); //wrongly added sdt filter probably
pes = add_pes_stream(ts, pid, pcr_pid, stream_type);
if (pes)
st = new_pes_av_stream(pes, 0, prog_reg_desc, reg_desc);
}

add_pid_to_pmt(ts, h->id, pid);

if(st) {
av_program_add_stream_index(ts->stream, h->id, st->index);

if (language[0] != 0)
av_metadata_set(&st->metadata, "language", language);

if (stream_type == 0x100)
st->codec->sub_id = (anc_page << 16) | comp_page;
}
}
/* all parameters are there */
ts->stop_parse++;


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