[FFmpeg-user] video plays the same frame after 2 seconds

Thomas Evangelidis tevang3 at gmail.com
Wed May 30 20:53:59 CEST 2012

Dear all,

I am using the following command line to create a good quality video from
500 image files:

$ ffmpeg -an -i WT_Hbonds.%05d.ppm -sameq -r 10 -vframes 500 test.mp4

The output is as follows:

FFmpeg version 0.6.4-4:0.6.4-0ubuntu0.11.04.1, Copyright (c) 2000-2010 the
Libav developers
  built on Jan  4 2012 16:13:16 with gcc 4.5.2
  configuration: --extra-version=4:0.6.4-0ubuntu0.11.04.1 --prefix=/usr
--enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib
--enable-libgsm --enable-libschroedinger --enable-libspeex
--enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib
--enable-libvpx --disable-stripping --enable-runtime-cpudetect
--enable-vaapi --enable-gpl --enable-postproc --enable-swscale
--enable-x11grab --enable-libdc1394 --enable-shared --disable-static
  WARNING: library configuration mismatch
  libavutil   configuration: --extra-version=4:0.6.4-1ubuntu1 --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 --enable-libvpx
--disable-stripping --enable-runtime-cpudetect --enable-vaapi
--enable-libopenjpeg --enable-gpl --enable-postproc --enable-swscale
--enable-x11grab --enable-libfaad --enable-libdirac --enable-libfaad
--enable-libmp3lame --enable-librtmp --enable-libx264 --enable-libxvid
--enable-libdc1394 --enable-shared --disable-static
  libavcodec  configuration: --extra-version=4:0.6.4-1ubuntu1+medibuntu1
--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 --enable-libvpx
--disable-stripping --enable-runtime-cpudetect --enable-libopencore-amrnb
--enable-libopencore-amrwb --enable-version3 --enable-vaapi
--enable-libopenjpeg --enable-libfaac --enable-nonfree --enable-gpl
--enable-postproc --enable-swscale --enable-x11grab --enable-libfaad
--enable-libdirac --enable-libfaad --enable-libmp3lame --enable-librtmp
--enable-libx264 --enable-libxvid --enable-libdc1394 --enable-shared
  libavutil     50.15. 1 / 50.15. 1
  libavcodec    52.72. 2 / 52.72. 2
  libavformat   52.64. 2 / 52.64. 2
  libavdevice   52. 2. 0 / 52. 2. 0
  libavfilter    1.19. 0 /  1.19. 0
  libswscale     0.11. 0 /  0.11. 0
  libpostproc   51. 2. 0 / 51. 2. 0
Input #0, image2, from 'WT_Hbonds.%05d.ppm':
  Duration: 00:00:20.00, start: 0.000000, bitrate: N/A
    Stream #0.0: Video: ppm, rgb24, 1280x745, 25 tbr, 25 tbn, 25 tbc
File 'test.mp4' already exists. Overwrite ? [y/N] y
Output #0, mp4, to 'test.mp4':
    encoder         : Lavf52.64.2
    Stream #0.0: Video: mpeg4, yuv420p, 1280x745, q=2-31, 200 kb/s, 10 tbn,
10 tbc
Stream mapping:
  Stream #0.0 -> #0.0
Press [q] to stop encoding
frame=  201 fps=  4 q=0.0 Lsize=   12340kB time=20.10 bitrate=5029.1kbits/s
dup=0 drop=299
video:12337kB audio:0kB global headers:0kB muxing overhead 0.019251%

Notice the pre-last line which indicated that only 201/500 frames were
written. The video resolution is good but the animation hangs after 2
seconds, namely the video keeps playing the same frame till the end. I
tried to reduce the image resolution from 1280x745 to 889x517 but the same
thing happens. Does anyone know what may be wrong?

Thanks in advance for any comments.


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