[FFmpeg-devel] ffmpeg latest git - rewrapping (codec copy) breaks container fps/tbr values

Mon Apr 13 22:56:27 CEST 2015

The following command:

     ffmpeg -i clip.mts -c:v copy -c:a copy clip.mp4 (or clip.mov)

seems to incorrectly write container values for fps + tbr which
causes .mp4/.mov files to play with very odd jerky movements.

imac> avinfo clip.mts
clip.mts
    length: 00:01:00.03, start: 1.433367, bitrate: 24821 kb/s
    stream: #0:0[0x100]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc
    stream: #0:1[0x101]: Audio: ac3 ([129][0][0][0] / 0x0081), 48000 Hz, stereo, fltp, 256 kb/s

imac> avinfo clip.mp4
clip.mp4
    length: 00:01:00.04, start: 0.000000, bitrate: 22955 kb/s
    stream: #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 22690 kb/s, 59.94 fps, 59.94 tbr, 90k tbn, 59.94 tbc (default)
    stream: #0:1(und): Audio: ac3 (ac-3 / 0x332D6361), 48000 Hz, stereo, fltp, 256 kb/s (default)

Notice both fps + tbr have changed from 29.97 to 59.94 which seems the problem.

Someone let me know if this is really a bug or if this has changed + no longer works.

Thanks.

_______

ffmpeg run log...

imac> ffmpeg -i clip.mts -c:v copy -c:a copy clip.mp4
ffmpeg version 2.6.2-2015-04-13-71430-g4d74c8d Copyright (c) 2000-2015 the FFmpeg developers
   built with Apple LLVM version 6.0 (clang-600.0.57) (based on LLVM 3.5svn)
   configuration: --cc=/usr/bin/clang --prefix=/david-favor/osx-10.9.5 --mandir=/david-favor/osx-10.9.5/share/man --enable-gpl --enable-yasm --arch=x86_64 --enable-version3 --enable-pthreads 
--enable-shared --disable-static --disable-debug --extra-cflags='-pipe -I/david-favor/osx-10.9.5/include -I/opt/local/include -I/usr/local/include -I/usr/include' 
--extra-ldflags='-Wl,-rpath,/david-favor/osx-10.9.5/lib -Wl,-rpath,/opt/local/lib -Wl,-rpath,/usr/local/lib -Wl,-rpath,/usr/lib -L/david-favor/osx-10.9.5/lib -L/opt/local/lib -L/usr/local/lib 
-L/usr/lib' --enable-ffplay --enable-ffprobe --enable-ffserver --enable-indev=qtkit --enable-indev=avfoundation --enable-runtime-cpudetect --enable-nonfree --enable-zlib --enable-bzlib 
--enable-openssl --enable-gnutls --enable-swscale --enable-avfilter --enable-avresample --enable-postproc --enable-vda --enable-libfribidi --enable-libmp3lame --enable-libfaac --enable-libfdk_aac 
--enable-libvpx --enable-libtheora --enable-libvorbis --enable-libxvid --enable-libopus --enable-libopenjpeg --enable-libschroedinger --enable-libspeex --enable-libbluray --enable-libx264 
--enable-libx265 --enable-postproc --enable-frei0r --enable-libopencv --enable-libopencore-amrnb --enable-fontconfig --enable-libfreetype --enable-libmodplug --enable-libass
   libavutil      54. 22.101 / 54. 22.101
   libavcodec     56. 34.100 / 56. 34.100
   libavformat    56. 30.100 / 56. 30.100
   libavdevice    56.  4.100 / 56.  4.100
   libavfilter     5. 14.100 /  5. 14.100
   libavresample   2.  1.  0 /  2.  1.  0
   libswscale      3.  1.101 /  3.  1.101
   libswresample   1.  1.100 /  1.  1.100
   libpostproc    53.  3.100 / 53.  3.100
Input #0, mpegts, from 'clip.mts':
   Duration: 00:01:00.03, start: 1.433367, bitrate: 24821 kb/s
   Program 1
     Metadata:
       service_name    : Service01
       service_provider: FFmpeg
     Stream #0:0[0x100]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc
     Stream #0:1[0x101]: Audio: ac3 ([129][0][0][0] / 0x0081), 48000 Hz, stereo, fltp, 256 kb/s
File 'clip.mp4' already exists. Overwrite ? [y/N] y
[mp4 @ 0x7f8d5e81dc00] Codec for stream 0 does not use global headers but container format requires global headers
[mp4 @ 0x7f8d5e81dc00] Codec for stream 1 does not use global headers but container format requires global headers
[mp4 @ 0x7f8d5e81dc00] track 1: codec frame size is not set
Output #0, mp4, to 'clip.mp4':
   Metadata:
     encoder         : Lavf56.30.100
     Stream #0:0: Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 29.97 fps, 29.97 tbr, 90k tbn, 90k tbc
     Stream #0:1: Audio: ac3 ([165][0][0][0] / 0x00A5), 48000 Hz, stereo, 256 kb/s
Stream mapping:
   Stream #0:0 -> #0:0 (copy)
   Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
[mp4 @ 0x7f8d5e81dc00] pts has no value
     Last message repeated 392 times
[mp4 @ 0x7f8d5e81dc00] pts has no value1kB time=00:00:13.12 bitrate=23053.4kbits/s
     Last message repeated 308 times
[mp4 @ 0x7f8d5e81dc00] pts has no value65kB time=00:00:23.42 bitrate=22964.7kbits/s
     Last message repeated 279 times
[mp4 @ 0x7f8d5e81dc00] pts has no value11kB time=00:00:32.76 bitrate=22977.7kbits/s
     Last message repeated 222 times
[mp4 @ 0x7f8d5e81dc00] pts has no value29kB time=00:00:40.19 bitrate=22976.6kbits/s
     Last message repeated 311 times
[mp4 @ 0x7f8d5e81dc00] pts has no value63kB time=00:00:50.62 bitrate=22972.5kbits/s
     Last message repeated 279 times
[mp4 @ 0x7f8d5e81dc00] pts has no value52kB time=00:00:59.96 bitrate=22956.9kbits/s
[mp4 @ 0x7f8d5e81dc00] pts has no value
frame= 3599 fps=1190 q=-1.0 Lsize=  168254kB time=00:01:00.00 bitrate=22972.3kbits/s
video:166308kB audio:1875kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.042559%