[FFmpeg-user] Possible issue with asf muxer

Massimo Battistel battistel at gmail.com
Tue Apr 1 11:52:05 CEST 2014 

Hello,
you can download sample from here:

http://www.datafilehost.com/d/c466f4ad

This file plays fine with ffplay.

Now I try to convert it to raw asf:

ffmpeg -i intermission.wmv  -vcodec rawvideo -pix_fmt yuv420p -acodec
pcm_s16le -ac 2 -ar 48000 -f  asf intermission2.asf

ffmpeg version N-61570-gaa86ccc Copyright (c) 2000-2014 the FFmpeg
developers
  built on Mar 17 2014 22:04:13 with gcc 4.8.2 (GCC)
  configuration: --disable-static --enable-shared --enable-gpl
--enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib
--enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv
--enable-libass --enable-libbluray --enable-libcaca --enable-libfreetype
--enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame
--enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg
--enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr
--enable-libspeex --enable-libtheora --enable-libtwolame
--enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc
--enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libx264
--enable-libx265 --enable-libxavs --enable-libxvid --enable-zlib
  libavutil      52. 67.100 / 52. 67.100
  libavcodec     55. 52.102 / 55. 52.102
  libavformat    55. 34.101 / 55. 34.101
  libavdevice    55. 11.100 / 55. 11.100
  libavfilter     4.  3.100 /  4.  3.100
  libswscale      2.  5.101 /  2.  5.101
  libswresample   0. 18.100 /  0. 18.100
  libpostproc    52.  3.100 / 52.  3.100
Guessed Channel Layout for  Input Stream #0.0 : stereo
Input #0, asf, from 'D:\Video\media\intermission.wmv':
  Metadata:
    WMFSDKNeeded    : 0.0.0.0000
    DeviceConformanceTemplate: MP at LL
    WM/WMADRCPeakReference: 32767
    WM/WMADRCAverageReference: 6698
    WMFSDKVersion   : 9.00.00.2925
    IsVBR           : 0
  Duration: 00:00:40.00, start: 0.000000, bitrate: 229 kb/s
    Stream #0:0(eng): Audio: wmav2 (a[1][0][0] / 0x0161), 48000 Hz, stereo,
fltp, 64 kb/s
    Stream #0:1(eng): Video: wmv3 (Main) (WMV3 / 0x33564D57), yuv420p,
320x240, 300 kb/s, 30 tbr, 1k tbn, 1k tbc
Output #0, asf, to 'intermission2.asf':
  Metadata:
    WMFSDKNeeded    : 0.0.0.0000
    DeviceConformanceTemplate: MP at LL
    WM/WMADRCPeakReference: 32767
    WM/WMADRCAverageReference: 6698
    WMFSDKVersion   : 9.00.00.2925
    IsVBR           : 0
    WM/EncodingSettings: Lavf55.34.101
    Stream #0:0(eng): Video: rawvideo (I420 / 0x30323449), yuv420p,
320x240, q=2-31, 200 kb/s, 1k tbn, 30 tbc
    Stream #0:1(eng): Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz,
stereo, s16, 1536 kb/s
Stream mapping:
  Stream #0:1 -> #0:0 (wmv3 -> rawvideo)
  Stream #0:0 -> #0:1 (wmav2 -> pcm_s16le)
Press [q] to stop, [?] for help
frame= 1008 fps=0.0 q=0.0 size=   83504kB time=00:00:33.60
bitrate=20359.1kbits/s dup=1 drop=0
[wmav2 @ 0240e940] nb_frames is 0
Error while decoding stream #0:0: Invalid data found when processing input
frame= 1200 fps=0.0 q=0.0 Lsize=  144086kB time=00:00:40.01
bitrate=29496.2kbits/s dup=1 drop=0
video:135000kB audio:7512kB subtitle:0 data:0 global headers:0kB muxing
overhead 1.104240%


The output file has lots of issue with ffplay: a/v sync, bad audio, ...



Now I try to convert it to raw avi (only muxer is changed from previous cmd
line):

ffmpeg -i intermission.wmv  -vcodec rawvideo -pix_fmt yuv420p -acodec
pcm_s16le -ac 2 -ar 48000 -f  avi intermission2.avi

ffmpeg version N-61570-gaa86ccc Copyright (c) 2000-2014 the FFmpeg
developers
  built on Mar 17 2014 22:04:13 with gcc 4.8.2 (GCC)
  configuration: --disable-static --enable-shared --enable-gpl
--enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib
--enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv
--enable-libass --enable-libbluray --enable-libcaca --enable-libfreetype
--enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame
--enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg
--enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr
--enable-libspeex --enable-libtheora --enable-libtwolame
--enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc
--enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libx264
--enable-libx265 --enable-libxavs --enable-libxvid --enable-zlib
  libavutil      52. 67.100 / 52. 67.100
  libavcodec     55. 52.102 / 55. 52.102
  libavformat    55. 34.101 / 55. 34.101
  libavdevice    55. 11.100 / 55. 11.100
  libavfilter     4.  3.100 /  4.  3.100
  libswscale      2.  5.101 /  2.  5.101
  libswresample   0. 18.100 /  0. 18.100
  libpostproc    52.  3.100 / 52.  3.100
Guessed Channel Layout for  Input Stream #0.0 : stereo
Input #0, asf, from 'D:\Video\media\intermission.wmv':
  Metadata:
    WMFSDKNeeded    : 0.0.0.0000
    DeviceConformanceTemplate: MP at LL
    WM/WMADRCPeakReference: 32767
    WM/WMADRCAverageReference: 6698
    WMFSDKVersion   : 9.00.00.2925
    IsVBR           : 0
  Duration: 00:00:40.00, start: 0.000000, bitrate: 229 kb/s
    Stream #0:0(eng): Audio: wmav2 (a[1][0][0] / 0x0161), 48000 Hz, stereo,
fltp, 64 kb/s
    Stream #0:1(eng): Video: wmv3 (Main) (WMV3 / 0x33564D57), yuv420p,
320x240, 300 kb/s, 30 tbr, 1k tbn, 1k tbc
Output #0, avi, to 'intermission2.avi':
  Metadata:
    WMFSDKNeeded    : 0.0.0.0000
    DeviceConformanceTemplate: MP at LL
    WM/WMADRCPeakReference: 32767
    WM/WMADRCAverageReference: 6698
    WMFSDKVersion   : 9.00.00.2925
    IsVBR           : 0
    ISFT            : Lavf55.34.101
    Stream #0:0(eng): Video: rawvideo (I420 / 0x30323449), yuv420p,
320x240, q=2-31, 200 kb/s, 30 tbn, 30 tbc
    Stream #0:1(eng): Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz,
stereo, s16, 1536 kb/s
Stream mapping:
  Stream #0:1 -> #0:0 (wmv3 -> rawvideo)
  Stream #0:0 -> #0:1 (wmav2 -> pcm_s16le)
Press [q] to stop, [?] for help
frame= 1189 fps=0.0 q=0.0 size=  103870kB time=00:00:39.66
bitrate=21451.4kbits/s
[wmav2 @ 0252e940] nb_frames is 0
Error while decoding stream #0:0: Invalid data found when processing input
frame= 1199 fps=0.0 q=0.0 Lsize=  142443kB time=00:00:40.01
bitrate=29160.2kbits/s
video:134888kB audio:7512kB subtitle:0 data:0 global headers:0kB muxing
overhead 0.030529%


Everything is fine.

I suppose something is wrong with asf muxer.



Thanks,
MB

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