Not working Windows ffmpeg -i MVI_3781.AVI main.mp4

[lindylex]

I am trying to convert my avi to mp4 and I have tried everything and nothing is working.

ffmpeg -version

FFmpeg version SVN-r23439, Copyright (c) 2000-2010 the FFmpeg developers
  built on Jun  3 2010 04:14:14 with gcc 4.4.2
  configuration: --target-os=mingw32 --enable-runtime-cpudetect --enable-avisynth --enable-gpl --enable-version3 --enabl
e-bzlib --enable-libgsm --enable-libfaad --enable-pthreads --enable-libvorbis --enable-libtheora --enable-libspeex --ena
ble-libmp3lame --enable-libopenjpeg --enable-libxvid --enable-libschroedinger --enable-libx264 --extra-libs='-lx264 -lpt
hread' --enable-libopencore_amrwb --enable-libopencore_amrnb --enable-librtmp --extra-libs='-lrtmp -lssl -lcrypto -lws2_
32 -lgdi32 -lwinmm -lcrypt32 -lz' --arch=x86 --cross-prefix=i686-mingw32- --cc='ccache i686-mingw32-gcc' --enable-memali
gn-hack
  libavutil     50.16. 0 / 50.16. 0
  libavcodec    52.73. 0 / 52.73. 0
  libavformat   52.67. 0 / 52.67. 0
  libavdevice   52. 2. 0 / 52. 2. 0
  libavfilter    1.20. 0 /  1.20. 0
  libswscale     0.11. 0 /  0.11. 0
FFmpeg SVN-r23439
libavutil     50.16. 0 / 50.16. 0
libavcodec    52.73. 0 / 52.73. 0
libavformat   52.67. 0 / 52.67. 0
libavdevice   52. 2. 0 / 52. 2. 0
libavfilter    1.20. 0 /  1.20. 0
libswscale     0.11. 0 /  0.11. 0

I want to do transcode to libx264 like this.

ffmpeg -i MVI_3781.AVI -vcodec libx264 -b 1320k -acodec aac -ab 128k -ac 2 -ar 48000 -f mp4 -threads 2 main.mp4

But nothing I do works this is the error I get.

Error while opening encoder for output stream #0.0 - maybe incorrect parameters such as bit_rate, rate, width or height

even when I try something simply like.
ffmpeg -i MVI_3781.AVI main.mp4


Platform Windows XP 32

Thanks

[Baldrick]

Can it read the source fine? Post the entire ffmpeg log.


And try a frontend like winff to see if you get same error.

[lindylex]

Baldrick, where is the ffmpeg log?

[Baldrick]

Everything you see in the command line and not just the error.

[lindylex]

ffmpeg -i MVI_3781.AVI -loglevel debug main.mp4
FFmpeg version SVN-r23439, Copyright (c) 2000-2010 the FFmpeg developers
  built on Jun  3 2010 04:14:14 with gcc 4.4.2
  configuration: --target-os=mingw32 --enable-runtime-cpudetect --enable-avisynth --enable-gpl --enable-version3 --enabl
e-bzlib --enable-libgsm --enable-libfaad --enable-pthreads --enable-libvorbis --enable-libtheora --enable-libspeex --ena
ble-libmp3lame --enable-libopenjpeg --enable-libxvid --enable-libschroedinger --enable-libx264 --extra-libs='-lx264 -lpt
hread' --enable-libopencore_amrwb --enable-libopencore_amrnb --enable-librtmp --extra-libs='-lrtmp -lssl -lcrypto -lws2_
32 -lgdi32 -lwinmm -lcrypt32 -lz' --arch=x86 --cross-prefix=i686-mingw32- --cc='ccache i686-mingw32-gcc' --enable-memali
gn-hack
  libavutil     50.16. 0 / 50.16. 0
  libavcodec    52.73. 0 / 52.73. 0
  libavformat   52.67. 0 / 52.67. 0
  libavdevice   52. 2. 0 / 52. 2. 0
  libavfilter    1.20. 0 /  1.20. 0
  libswscale     0.11. 0 /  0.11. 0
Input #0, avi, from 'MVI_3781.AVI':
  Metadata:
    ISFT            : CanonMVI06
  Duration: 00:02:54.69, start: 0.000000, bitrate: 16725 kb/s
    Stream #0.0: Video: mjpeg, yuvj422p, 640x480, 30 tbr, 30 tbn, 30 tbc
    Stream #0.1: Audio: pcm_s16le, 44100 Hz, 2 channels, s16, 1411 kb/s
[ffmpeg_output @ 01cecd00]auto-inserting filter 'auto-inserted scaler 0' between the filter 'src' and the filter 'out'
[scale @ 01cecfa0]w:640 h:480 fmt:yuvj422p -> w:640 h:480 fmt:yuv420p flags:0x4
[mpeg4 @ 01d22920]timebase not supported by mpeg 4 standard
Output #0, mp4, to 'main.mp4':
    Stream #0.0, 0, 1/90000: Video: mpeg4, yuv420p, 640x480, 33333/1000000, q=2-31, 200 kb/s, 90k tbn, 30 tbc
    Stream #0.1, 0, 1/90000: Audio: aac, 44100 Hz, 2 channels, s16, 64 kb/s
Stream mapping:
  Stream #0.0 -> #0.0
  Stream #0.1 -> #0.1
Error while opening encoder for output stream #0.0 - maybe incorrect parameters such as bit_rate, rate, width or height

[Baldrick]

[mpeg4 @ 01d22920]timebase not supported by mpeg 4 standard

Try set the framerate like -r 30 or whatever your source framerate is.

[lindylex]

I just tried this "ffmpeg -i MVI_3781.AVI -loglevel debug -r 29 main.mp4" and it is doing something. I got this solution from http://jaredforsyth.com/blog/2009/jan/6/convert-videos-ffmpeg/

Thanks for pointing me in the right direction as to what to look for.

[lindylex]

Baldrick thanks.