[FFmpeg-trac] #960(avformat:new): Application provided invalid, non monotonically increasing dts to muxer

[FFmpeg]

#960: Application provided invalid, non monotonically increasing dts to muxer
----------------------------------+--------------------------------------
             Reporter:  aurelien  |                     Type:  defect
               Status:  new       |                 Priority:  important
            Component:  avformat  |                  Version:  git-master
             Keywords:            |               Blocked By:
             Blocking:            |  Reproduced by developer:  0
Analyzed by developer:  0         |
----------------------------------+--------------------------------------
 I have a sample : H.264/AAC wrapped in MPEG-TS whith cannot be transcoded
 (or copy using -vcodec copy) using ffmpeg-git.

 jupiter@~/ffmpeg> ./ffmpeg -y -i /tmp/sample-non-monotonic-dts.ts -an
 -vcodec copy -f mpegts /dev/null
 ffmpeg version N-37401-g151ecc2 Copyright (c) 2000-2012 the FFmpeg
 developers
   built on Jan 31 2012 12:54:08 with gcc 4.6.2
   configuration: --prefix=/home/aurelien/local --enable-postproc --enable-
 nonfree --enable-gpl --enable-libopencore-amrnb --enable-libfaac --enable-
 libmp3lame --enable-shared --enable-libxvid --enable-libx264 --extra-
 cflags=-I/home/aurelien/local/include --extra-
 ldflags=-L/home/aurelien/local/lib --enable-version3 --disable-
 optimizations
   libavutil      51. 36.100 / 51. 36.100
   libavcodec     54.  0.102 / 54.  0.102
   libavformat    54.  0.100 / 54.  0.100
   libavdevice    53.  4.100 / 53.  4.100
   libavfilter     2. 60.100 /  2. 60.100
   libswscale      2.  1.100 /  2.  1.100
   libswresample   0.  6.100 /  0.  6.100
   libpostproc    52.  0.100 / 52.  0.100
 [mpegts @ 0xda43a0] max_analyze_duration 5000000 reached at 5000000
 [mpegts @ 0xda43a0] PES packet size mismatch
 Input #0, mpegts, from '/tmp/sample-non-monotonic-dts.ts':
   Duration: 00:01:08.67, start: 0.500011, bitrate: 2189 kb/s
   Program 1
     Stream #0:0[0x3e8]: Video: h264 (Main) ([27][0][0][0] / 0x001B),
 yuv420p, 720x576 [SAR 16:11 DAR 20:11], 50 fps, 50 tbr, 90k tbn, 50 tbc
     Stream #0:1[0x1e2](fra): Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz,
 stereo, s16, 192 kb/s (clean effects)
 [mpegts @ 0xdab3e0] muxrate VBR, pcr every 2 pkts, sdt every 200, pat/pmt
 every 40 pkts
 Output #0, mpegts, to '/dev/null':
   Metadata:
     encoder         : Lavf54.0.100
     Stream #0:0: Video: h264 ([27][0][0][0] / 0x001B), yuv420p, 720x576
 [SAR 16:11 DAR 20:11], q=2-31, 50 fps, 90k tbn, 25 tbc
 Stream mapping:
   Stream #0:0 -> #0:0 (copy)
 Press [q] to stop, [?] for help
 [mpegts @ 0xdab3e0] Application provided invalid, non monotonically
 increasing dts to muxer in stream 0: 23399 >= 23399
 av_interleaved_write_frame(): Invalid argument

 It does not work with ffmpeg version shipped with Debian Squeeze either.

 jupiter@~> ffmpeg -y -i /tmp/sample-non-monotonic-dts.ts -an -vcodec copy
 -f mpegts /dev/null
 FFmpeg version SVN-r0.5.6-4:0.5.6-3, Copyright (c) 2000-2009 Fabrice
 Bellard, et al.
   configuration: --extra-version=4:0.5.6-3 --prefix=/usr --enable-avfilter
 --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libdirac
 --enable-libgsm --enable-libopenjpeg --enable-libschroedinger --enable-
 libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-
 zlib --disable-stripping --disable-vhook --enable-runtime-cpudetect
 --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-
 libfaad --enable-libdc1394 --enable-shared --disable-static
   libavutil     49.15. 0 / 49.15. 0
   libavcodec    52.20. 1 / 52.20. 1
   libavformat   52.31. 0 / 52.31. 0
   libavdevice   52. 1. 0 / 52. 1. 0
   libavfilter    0. 4. 0 /  0. 4. 0
   libswscale     0. 7. 1 /  0. 7. 1
   libpostproc   51. 2. 0 / 51. 2. 0
   built on Dec 31 2011 16:14:46, gcc: 4.4.5
 Input #0, mpegts, from '/tmp/sample-non-monotonic-dts.ts':
   Duration: 00:01:08.67, start: 0.500022, bitrate: 2189 kb/s
   Program 1
     Stream #0.0[0x3e8]: Video: h264, yuv420p, 720x576 [PAR 16:11 DAR
 20:11], 50 tbr, 90k tbn, 50 tbc
     Stream #0.1[0x1e2](fra): Audio: mp2, 48000 Hz, stereo, s16, 192 kb/s
 Output #0, mpegts, to '/dev/null':
     Stream #0.0: Video: 0x0000, yuv420p, 720x576 [PAR 16:11 DAR 20:11],
 q=2-31, 90k tbn, 25 tbc
 Stream mapping:
   Stream #0.0 -> #0.0
 Press [q] to stop encoding
 [mpegts @ 0x170b870]dts < pcr, TS is invalid
     Last message repeated 220 times
 [NULL @ 0x170a710]error, non monotone timestamps 23398 >= 23398
 av_interleaved_write_frame(): Error while opening file

 Sample name : sample-non-monotonic-dts.ts (uploaded on upload.ffmpeg.org)

 Here are two frames taken from the sample :

 NEW DATA
         PID : 1000
         Size : 5280
         PTS : 81000
         DTS : 68400
 NEW DATA
         PID : 1000
         Size : 1072
         PTS : 68400
         DTS : no value

 I guess the problem is the second frame has pts=dts=68400 which is also
 the dts of the previous frame though I don't know if the sample is valid
 regarding ISO 13818-1.

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/960>
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