[FFmpeg-trac] #2024(undetermined:new): Reencoding dvbsub fails
FFmpeg
trac at avcodec.org
Thu Dec 13 00:07:54 CET 2012
#2024: Reencoding dvbsub fails
-------------------------------------+-------------------------------------
Reporter: cehoyos | Owner:
Type: defect | Status: new
Priority: normal | Component:
Version: git- | undetermined
master | Keywords: dvbsub
Blocked By: | av_interleaved_write_frame
Reproduced by developer: 0 | Blocking:
| Analyzed by developer: 0
-------------------------------------+-------------------------------------
I tested two samples:
http://samples.ffmpeg.org/MPEG-VOB/ClosedCaptions/Starship_Troopers.vob
http://samples.ffmpeg.org/MPEG-VOB/transport/dvbsub/dvbsubtest.ts
and tried to reencode them to dvbsub. This works fine for the dvdsub
sample, but fails for the dvbsub (input) sample.
{{{
$ ffmpeg -i dvbsubtest.ts -qscale 2 -mbd 2 -scodec dvbsub out.ts
ffmpeg version N-47774-g26db653 Copyright (c) 2000-2012 the FFmpeg
developers
built on Dec 12 2012 21:57:33 with gcc 4.7 (SUSE Linux)
configuration: --enable-gpl --disable-indev=jack
libavutil 52. 12.100 / 52. 12.100
libavcodec 54. 79.102 / 54. 79.102
libavformat 54. 49.101 / 54. 49.101
libavdevice 54. 3.102 / 54. 3.102
libavfilter 3. 26.102 / 3. 26.102
libswscale 2. 1.103 / 2. 1.103
libswresample 0. 17.102 / 0. 17.102
libpostproc 52. 2.100 / 52. 2.100
[mpegts @ 0x2f23280] max_analyze_duration 5000000 reached at 5016000
[mpegts @ 0x2f23280] PES packet size mismatch
Input #0, mpegts, from 'dvbsubtest.ts':
Duration: 00:00:34.60, start: 79677.098467, bitrate: 4848 kb/s
Program 1
Stream #0:0[0x1901](eng): Video: mpeg2video (Main) ([2][0][0][0] /
0x0002), yuv420p, 720x576 [SAR 64:45 DAR 16:9], 25 fps, 25 tbr, 90k tbn,
50 tbc
Stream #0:1[0x19a1](eng): Audio: mp2 ([4][0][0][0] / 0x0004), 48000
Hz, stereo, s16p, 256 kb/s
Stream #0:2[0x19b1](eng): Subtitle: dvb_subtitle ([6][0][0][0] /
0x0006)
Please use -q:a or -q:v, -qscale is ambiguous
Output #0, mpegts, to 'out.ts':
Metadata:
encoder : Lavf54.49.101
Stream #0:0(eng): Video: mpeg2video (hq), yuv420p, 720x576 [SAR 64:45
DAR 16:9], q=2-31, 200 kb/s, 90k tbn, 25 tbc
Stream #0:1(eng): Audio: mp2, 48000 Hz, stereo, s16, 128 kb/s
Stream #0:2(eng): Subtitle: dvb_subtitle
Stream mapping:
Stream #0:0 -> #0:0 (mpeg2video -> mpeg2video)
Stream #0:1 -> #0:1 (mp2 -> mp2)
Stream #0:2 -> #0:2 (dvbsub -> dvbsub)
Press [q] to stop, [?] for help
frame= 310 fps=0.0 q=2.0 size= 0kB time=00:00:12.32 bitrate=
0.0kbits/s dup=10 drop=0Application provided invalid, non monotonically
increasing dts to muxer in stream 2: 3005830 >= 1670230
av_interleaved_write_frame(): Invalid argument
}}}
Remuxing all strams fails (remuxing only audio and video works fine):
{{{
$ ffmpeg -i dvbsubtest.ts -acodec copy -vcodec copy -scodec dvbsub out.ts
ffmpeg version N-47774-g26db653 Copyright (c) 2000-2012 the FFmpeg
developers
built on Dec 12 2012 21:57:33 with gcc 4.7 (SUSE Linux)
configuration: --enable-gpl --disable-indev=jack
libavutil 52. 12.100 / 52. 12.100
libavcodec 54. 79.102 / 54. 79.102
libavformat 54. 49.101 / 54. 49.101
libavdevice 54. 3.102 / 54. 3.102
libavfilter 3. 26.102 / 3. 26.102
libswscale 2. 1.103 / 2. 1.103
libswresample 0. 17.102 / 0. 17.102
libpostproc 52. 2.100 / 52. 2.100
[mpegts @ 0x1b92280] max_analyze_duration 5000000 reached at 5016000
[mpegts @ 0x1b92280] PES packet size mismatch
Input #0, mpegts, from 'dvbsubtest.ts':
Duration: 00:00:34.60, start: 79677.098467, bitrate: 4848 kb/s
Program 1
Stream #0:0[0x1901](eng): Video: mpeg2video (Main) ([2][0][0][0] /
0x0002), yuv420p, 720x576 [SAR 64:45 DAR 16:9], 25 fps, 25 tbr, 90k tbn,
50 tbc
Stream #0:1[0x19a1](eng): Audio: mp2 ([4][0][0][0] / 0x0004), 48000
Hz, stereo, s16p, 256 kb/s
Stream #0:2[0x19b1](eng): Subtitle: dvb_subtitle ([6][0][0][0] /
0x0006)
Output #0, mpegts, to 'out.ts':
Metadata:
encoder : Lavf54.49.101
Stream #0:0(eng): Video: mpeg2video ([2][0][0][0] / 0x0002), yuv420p,
720x576 [SAR 64:45 DAR 16:9], q=2-31, 25 fps, 90k tbn, 25 tbc
Stream #0:1(eng): Audio: mp2 ([4][0][0][0] / 0x0004), 48000 Hz,
stereo, 256 kb/s
Stream #0:2(eng): Subtitle: dvb_subtitle
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Stream #0:1 -> #0:1 (copy)
Stream #0:2 -> #0:2 (dvbsub -> dvbsub)
Press [q] to stop, [?] for help
[mpegts @ 0x1b9a2e0] Application provided invalid, non monotonically
increasing dts to muxer in stream 2: 3005830 >= 1670230
av_interleaved_write_frame(): Invalid argument
}}}
Remuxing only the subtitles work, but the resulting file shows no
subtitles:
{{{
$ ffmpeg -i dvbsubtest.ts -qscale 2 -mbd 2 -scodec copy out.ts
ffmpeg version N-47774-g26db653 Copyright (c) 2000-2012 the FFmpeg
developers
built on Dec 12 2012 21:57:33 with gcc 4.7 (SUSE Linux)
configuration: --enable-gpl --disable-indev=jack
libavutil 52. 12.100 / 52. 12.100
libavcodec 54. 79.102 / 54. 79.102
libavformat 54. 49.101 / 54. 49.101
libavdevice 54. 3.102 / 54. 3.102
libavfilter 3. 26.102 / 3. 26.102
libswscale 2. 1.103 / 2. 1.103
libswresample 0. 17.102 / 0. 17.102
libpostproc 52. 2.100 / 52. 2.100
[mpegts @ 0x2ae8280] max_analyze_duration 5000000 reached at 5016000
[mpegts @ 0x2ae8280] PES packet size mismatch
Input #0, mpegts, from 'dvbsubtest.ts':
Duration: 00:00:34.60, start: 79677.098467, bitrate: 4848 kb/s
Program 1
Stream #0:0[0x1901](eng): Video: mpeg2video (Main) ([2][0][0][0] /
0x0002), yuv420p, 720x576 [SAR 64:45 DAR 16:9], 25 fps, 25 tbr, 90k tbn,
50 tbc
Stream #0:1[0x19a1](eng): Audio: mp2 ([4][0][0][0] / 0x0004), 48000
Hz, stereo, s16p, 256 kb/s
Stream #0:2[0x19b1](eng): Subtitle: dvb_subtitle ([6][0][0][0] /
0x0006)
Please use -q:a or -q:v, -qscale is ambiguous
Output #0, mpegts, to 'out.ts':
Metadata:
encoder : Lavf54.49.101
Stream #0:0(eng): Video: mpeg2video (hq), yuv420p, 720x576 [SAR 64:45
DAR 16:9], q=2-31, 200 kb/s, 90k tbn, 25 tbc
Stream #0:1(eng): Audio: mp2, 48000 Hz, stereo, s16, 128 kb/s
Stream #0:2(eng): Subtitle: dvb_subtitle ([6][0][0][0] / 0x0006)
Stream mapping:
Stream #0:0 -> #0:0 (mpeg2video -> mpeg2video)
Stream #0:1 -> #0:1 (mp2 -> mp2)
Stream #0:2 -> #0:2 (copy)
Press [q] to stop, [?] for help
frame= 311 fps=0.0 q=2.0 size= 5961kB time=00:00:13.09
bitrate=3728.0kbits/s dup=10 drop=0frame= 570 fps=569 q=2.0 size=
14614kB time=00:00:23.13 bitrate=5173.9kbits/s dup=10 drop=0frame= 821
fps=546 q=2.0 size= 25327kB time=00:00:32.76 bitrate=6333.3kbits/s
dup=10 drop=0PES packet size mismatch
[mpeg2video @ 0x2aec140] invalid mb type in P Frame at 43 16
[mpeg2video @ 0x2aec140] Warning MVs not available
[mpeg2video @ 0x2aec140] concealing 900 DC, 900 AC, 900 MV errors in P
frame
[mp2 @ 0x2aecc20] incomplete frame
Error while decoding stream #0:1: Invalid data found when processing input
frame= 866 fps=538 q=2.0 Lsize= 28381kB time=00:00:34.67
bitrate=6704.4kbits/s dup=12 drop=0
video:25613kB audio:535kB subtitle:50 global headers:0kB muxing overhead
8.332572%
}}}
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2024>
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