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calculate pat, pmt and sdt exact size and adjust total bitrate 

Originally committed as revision 16610 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Baptiste Coudurier 2009-01-14 23:49:13 +00:00
parent 620b9df7a7
commit 3d0a94f699
3 changed files with 54 additions and 37 deletions
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37
libavformat/mpegtsenc.c
View File

@ -385,6 +385,7 @@ static int mpegts_write_header(AVFormatContext *s)
AVStream *st;
int i, total_bit_rate;
const char *service_name;
uint64_t sdt_size, pat_pmt_size, pos;
ts->tsid = DEFAULT_TSID;
ts->onid = DEFAULT_ONID;
@ -440,23 +441,39 @@ static int mpegts_write_header(AVFormatContext *s)
(TS_PACKET_SIZE * 8 * 1000);
ts->pat_packet_freq = (total_bit_rate * PAT_RETRANS_TIME) /
(TS_PACKET_SIZE * 8 * 1000);
#if 0
printf("%d %d %d\n",
ts->mux_rate = 1; // avoid div by 0
/* write info at the start of the file, so that it will be fast to
find them */
pos = url_ftell(s->pb);
mpegts_write_sdt(s);
sdt_size = url_ftell(s->pb) - pos;
pos = url_ftell(s->pb);
mpegts_write_pat(s);
for(i = 0; i < ts->nb_services; i++) {
mpegts_write_pmt(s, ts->services[i]);
}
pat_pmt_size = url_ftell(s->pb) - pos;
total_bit_rate +=
total_bit_rate * 25 / (8 * DEFAULT_PES_PAYLOAD_SIZE) + /* PES header size */
total_bit_rate * 4 / (8 * TS_PACKET_SIZE) + /* TS header size */
SDT_RETRANS_TIME * sdt_size + /* SDT size */
PAT_RETRANS_TIME * pat_pmt_size + /* PAT+PMT size */
PCR_RETRANS_TIME * 8; /* PCR size */
av_log(s, AV_LOG_DEBUG, "muxrate %d freq sdt %d pat %d\n",
total_bit_rate, ts->sdt_packet_freq, ts->pat_packet_freq);
#endif
if (s->mux_rate)
ts->mux_rate = s->mux_rate;
else
ts->mux_rate = total_bit_rate;
/* write info at the start of the file, so that it will be fast to
find them */
mpegts_write_sdt(s);
mpegts_write_pat(s);
for(i = 0; i < ts->nb_services; i++) {
mpegts_write_pmt(s, ts->services[i]);
}
// adjust pcr
ts->cur_pcr /= ts->mux_rate;
put_flush_packet(s->pb);
return 0;

2
tests/libav.regression.ref
View File

@ -9,7 +9,7 @@ c351132527ccb1e8cab06cc0822fde23 *./tests/data/b-libav.rm
bdb7484c68db722f66ba1630cf79844c *./tests/data/b-libav.mpg
378880 ./tests/data/b-libav.mpg
./tests/data/b-libav.mpg CRC=0x2b71a386
676a06e0f0f6639f5199efd52fec9ca9 *./tests/data/b-libav.ts
c0cc2ae4df6a8b3df84986929a393116 *./tests/data/b-libav.ts
471316 ./tests/data/b-libav.ts
./tests/data/b-libav.ts CRC=0xcc4948e1
1b28a16652bb8ac528b33f7478ca18b6 *./tests/data/b-libav.swf

52
tests/seek.regression.ref
View File

@ -3422,57 +3422,57 @@ ret:-1 st:-1 ts:-0.645825 flags:1
tests/data/b-libav.ts
ret: 0 st: 0 dts:0.660000 pts:0.700000 pos:-1 size:24921 flags:1
ret: 0 st:-1 ts:-1.000000 flags:0
ret: 0 st: 0 dts:0.045844 pts:-102481911520608.625000 pos:-1 size:22036 flags:1
ret: 0 st: 0 dts:0.030522 pts:-102481911520608.625000 pos:-1 size:22036 flags:1
ret: 0 st:-1 ts:1.894167 flags:1
ret: 0 st: 0 dts:1.877667 pts:-102481911520608.625000 pos:-1 size:3142 flags:1
ret: 0 st: 0 dts:1.887078 pts:-102481911520608.625000 pos:-1 size:7907 flags:1
ret: 0 st: 0 ts:0.788333 flags:0
ret: 0 st: 0 dts:0.796778 pts:-102481911520608.625000 pos:-1 size:1524 flags:1
ret: 0 st: 0 dts:0.795878 pts:-102481911520608.625000 pos:-1 size:9043 flags:1
ret: 0 st: 0 ts:-0.317500 flags:1
ret: 0 st: 0 dts:0.028778 pts:-102481911520608.625000 pos:-1 size:22036 flags:1
ret: 0 st: 0 dts:0.019156 pts:-102481911520608.625000 pos:-1 size:22036 flags:1
ret: 0 st: 1 ts:2.576667 flags:0
ret: 0 st: 0 dts:2.583089 pts:-102481911520608.625000 pos:-1 size:13769 flags:1
ret: 0 st: 0 dts:2.580444 pts:-102481911520608.625000 pos:-1 size:5727 flags:1
ret: 0 st: 1 ts:1.470833 flags:1
ret: 0 st: 0 dts:0.740000 pts:0.780000 pos:-1 size:14870 flags:0
ret: 0 st: 0 dts:1.466511 pts:-102481911520608.625000 pos:-1 size:10244 flags:1
ret: 0 st:-1 ts:0.365002 flags:0
ret: 0 st: 0 dts:0.370111 pts:-102481911520608.625000 pos:-1 size:13236 flags:1
ret: 0 st: 0 dts:0.379100 pts:-102481911520608.625000 pos:-1 size:7376 flags:1
ret: 0 st:-1 ts:-0.740831 flags:1
ret: 0 st: 0 dts:0.028778 pts:-102481911520608.625000 pos:-1 size:22036 flags:1
ret: 0 st: 0 dts:0.019156 pts:-102481911520608.625000 pos:-1 size:22036 flags:1
ret: 0 st: 0 ts:2.153333 flags:0
ret: 0 st: 0 dts:2.156422 pts:-102481911520608.625000 pos:-1 size:11560 flags:1
ret: 0 st: 0 dts:2.156089 pts:-102481911520608.625000 pos:-1 size:8674 flags:1
ret: 0 st: 0 ts:1.047500 flags:1
ret: 0 st: 0 dts:1.041400 pts:-102481911520608.625000 pos:-1 size:11965 flags:1
ret: 0 st: 0 dts:1.042156 pts:-102481911520608.625000 pos:-1 size:11942 flags:1
ret: 0 st: 1 ts:-0.058333 flags:0
ret: 0 st: 0 dts:0.045844 pts:-102481911520608.625000 pos:-1 size:22036 flags:1
ret: 0 st: 0 dts:0.030522 pts:-102481911520608.625000 pos:-1 size:22036 flags:1
ret: 0 st: 1 ts:2.835833 flags:1
ret: 0 st: 0 dts:2.833400 pts:-102481911520608.625000 pos:-1 size:7907 flags:1
ret: 0 st: 0 dts:2.822933 pts:-102481911520608.625000 pos:-1 size:10429 flags:1
ret: 0 st:-1 ts:1.730004 flags:0
ret: 0 st: 0 dts:1.735444 pts:-102481911520608.625000 pos:-1 size:9002 flags:1
ret: 0 st: 0 dts:1.731733 pts:-102481911520608.625000 pos:-1 size:13769 flags:1
ret: 0 st:-1 ts:0.624171 flags:1
ret: 0 st: 0 dts:0.620422 pts:-102481911520608.625000 pos:-1 size:7376 flags:1
ret: 0 st: 0 dts:0.617800 pts:-102481911520608.625000 pos:-1 size:14905 flags:1
ret: 0 st: 0 ts:-0.481667 flags:0
ret: 0 st: 0 dts:0.045844 pts:-102481911520608.625000 pos:-1 size:22036 flags:1
ret: 0 st: 0 dts:0.030522 pts:-102481911520608.625000 pos:-1 size:22036 flags:1
ret: 0 st: 0 ts:2.412500 flags:1
ret: 0 st: 0 dts:2.389667 pts:-102481911520608.625000 pos:-1 size:5682 flags:1
ret: 0 st: 0 dts:2.406156 pts:-102481911520608.625000 pos:-1 size:13938 flags:1
ret: 0 st: 1 ts:1.306667 flags:0
ret: 0 st: 0 dts:1.320156 pts:-102481911520608.625000 pos:-1 size:6070 flags:1
ret: 0 st: 0 dts:1.314956 pts:-102481911520608.625000 pos:-1 size:3107 flags:1
ret: 0 st: 1 ts:0.200844 flags:1
ret: 0 st: 0 dts:0.193756 pts:-102481911520608.625000 pos:-1 size:19104 flags:1
ret: 0 st: 0 dts:0.193444 pts:-102481911520608.625000 pos:-1 size:16166 flags:1
ret: 0 st:-1 ts:-0.904994 flags:0
ret: 0 st: 0 dts:0.045844 pts:-102481911520608.625000 pos:-1 size:22036 flags:1
ret: 0 st: 0 dts:0.030522 pts:-102481911520608.625000 pos:-1 size:22036 flags:1
ret: 0 st:-1 ts:1.989173 flags:1
ret: 0 st: 0 dts:1.974378 pts:-102481911520608.625000 pos:-1 size:3107 flags:1
ret: 0 st: 0 dts:1.981800 pts:-102481911520608.625000 pos:-1 size:2039 flags:1
ret: 0 st: 0 ts:0.883344 flags:0
ret: 0 st: 0 dts:0.893489 pts:-102481911520608.625000 pos:-1 size:14905 flags:1
ret: 0 st: 0 dts:0.890600 pts:-102481911520608.625000 pos:-1 size:3175 flags:1
ret: 0 st: 0 ts:-0.222489 flags:1
ret: 0 st: 0 dts:0.028778 pts:-102481911520608.625000 pos:-1 size:22036 flags:1
ret: 0 st: 0 dts:0.019156 pts:-102481911520608.625000 pos:-1 size:22036 flags:1
ret: 0 st: 1 ts:2.671678 flags:0
ret: 0 st: 0 dts:2.679800 pts:-102481911520608.625000 pos:-1 size:10829 flags:1
ret: 0 st: 0 dts:2.682744 pts:-102481911520608.625000 pos:-1 size:2253 flags:1
ret: 0 st: 1 ts:1.565844 flags:1
ret: 0 st: 0 dts:1.564778 pts:-102481911520608.625000 pos:-1 size:11942 flags:1
ret: 0 st: 0 dts:1.557444 pts:-102481911520608.625000 pos:-1 size:5682 flags:1
ret: 0 st:-1 ts:0.460008 flags:0
ret: 0 st: 0 dts:0.466822 pts:-102481911520608.625000 pos:-1 size:10314 flags:1
ret: 0 st: 0 dts:0.466244 pts:-102481911520608.625000 pos:-1 size:4446 flags:1
ret: 0 st:-1 ts:-0.645825 flags:1
ret: 0 st: 0 dts:0.028778 pts:-102481911520608.625000 pos:-1 size:22036 flags:1
ret: 0 st: 0 dts:0.019156 pts:-102481911520608.625000 pos:-1 size:22036 flags:1
----------------
tests/data/b-libav.ul
ret: 0 st: 0 dts:0.000000 pts:0.000000 pos:0 size:1024 flags:1