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  • parser not found for codec wmav2

    5 décembre 2011, par HashCoder

    I am getting a warning when I run the below command.

    Warning: [asf @ 01C787A0] parser not found for codec wmav2, packets or times may be inval id.

    I am using the latest ffmpeg.exe, did I miss any parameters. Any suggestions please. 

    ffmpeg -i Assets\Logitech_webcam_on_PC.wmv -sameq -f swf -y -an -s 640x360 MySlide.swf
ffmpeg version N-35295-gb55dd10, Copyright (c) 2000-2011 the FFmpeg developers
  built on Nov 30 2011 00:52:52 with gcc 4.6.2
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-ru
ntime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r --enable-libope
ncore-amrnb --enable-libopencore-amrwb --enable-libfreetype --enable-libgsm --en
able-libmp3lame --enable-libopenjpeg --enable-librtmp --enable-libschroedinger -
-enable-libspeex --enable-libtheora --enable-libvo-aacenc --enable-libvo-amrwben
c --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-
libxvid --enable-zlib
  libavutil    51. 29. 1 / 51. 29. 1
  libavcodec   53. 39. 1 / 53. 39. 1
  libavformat  53. 22. 0 / 53. 22. 0
  libavdevice  53.  4. 0 / 53.  4. 0
  libavfilter   2. 50. 0 /  2. 50. 0
  libswscale    2.  1. 0 /  2.  1. 0
  libpostproc  51.  2. 0 / 51.  2. 0
[asf @ 01C787A0] parser not found for codec wmav2, packets or times may be inval
id.

Seems stream 1 codec frame rate differs from container frame rate: 1000.00 (1000
/1) -> 0.08 (1/12)
Input #0, asf, from 'Assets\Logitech_webcam_on_PC.wmv':
  Metadata:
    WMFSDKVersion   : 11.0.5721.5265
    WMFSDKNeeded    : 0.0.0.0000
    IsVBR           : 1
    VBR Peak        : 50500.0000
    Buffer Average  : 66550.0000
  Duration: 00:00:36.22, start: 0.000000, bitrate: 497 kb/s
    Stream #0:0(eng): Audio: wmav2 (a[1][0][0] / 0x0161), 32000 Hz, 1 channels,
s16, 20 kb/s
    Stream #0:1(eng): Video: wmv2 (WMV2 / 0x32564D57), yuv420p, 320x180, 422 kb/
s, 0.08 tbr, 1k tbn, 1k tbc
[buffer @ 02AA9760] w:320 h:180 pixfmt:yuv420p tb:1/1000000 sar:0/1 sws_param:
[scale @ 02AA9A80] w:320 h:180 fmt:yuv420p -> w:640 h:360 fmt:yuv420p flags:0x4
Output #0, swf, to 'MySlide.swf':
  Metadata:
    WMFSDKVersion   : 11.0.5721.5265
    WMFSDKNeeded    : 0.0.0.0000
    IsVBR           : 1
    VBR Peak        : 50500.0000
    Buffer Average  : 66550.0000
    encoder         : Lavf53.22.0
    Stream #0:0(eng): Video: flv1, yuv420p, 640x360, q=2-31, 200 kb/s, 90k tbn,
0.08 tbc
Stream mapping:
  Stream #0:1 -> #0:0 (wmv2 -> flv)
Press [q] to stop, [?] for help
frame=    4 fps=  0 q=0.0 size=      97kB time=00:00:48.00 bitrate=  16.6kbits/s
frame=    5 fps=  0 q=0.0 Lsize=     111kB time=00:01:00.00 bitrate=  15.2kbits/
s dup=0 drop=599
video:111kB audio:0kB global headers:0kB muxing overhead 0.128646%

  • How to enable different components of FFMPEG ?

    3 décembre 2011, par Richard77

    I've found this C# wrapper code around FFMPEG. I'm using ASP.NET MVC3 and C#. When trying to get it work, I'm getting the following error:

            RawOutput   "ffmpeg version N-34906-g4e7b3ef, Copyright (c) 2000-2011
        the FFmpeg developers

        built on Nov 16 2011 12:35:07 with gcc 4.6.2

        configuration: --enable-gpl --enable-version3 --disable-w32threads 
        --enable-runtime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r 
        --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libfreetype 
        --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-librtmp 
        --enable-libschroedinger --enable-libspeex --enable-libtheora 
        --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis 
        --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid 
        --enable-zlib

        libavutil    51. 25. 0 / 51. 25. 0
        libavcodec   53. 34. 0 / 53. 34. 0 
        libavformat  53. 20. 0 / 53. 20. 0 
        libavdevice  53.  4. 0 / 53.  4. 0  
        libavfilter   2. 48. 1 /  2. 48. 1 
        libswscale    2.  1. 0 /  2.  1. 0 
        libpostproc  51.  2. 0 / 51.  2. 0
        [wmv3 @ 002BFA00] Extra data: 8 bits left, value: 0
        [asf @ 002B8A80] parser not found for codec wmav2, packets or times may be invalid.
        Seems stream 1 codec frame rate differs from container frame rate: 1000.00 (1000/1) -> 30.00 (30/1)
        Input #0, asf, from 'C:\\FfMpeg\\Videos\\Original\\Video1.wmv':
        Metadata:
        WMFSDKVersion   : 11.0.6002.18049   
        WMFSDKNeeded    : 0.0.0.0000
        IsVBR           : 0
        Duration: 00:00:41.80, start: 0.000000, bitrate: 888 kb/s
        Stream #0:0(eng): Audio: wmav2 (a[1][0][0] / 0x0161), 44100 Hz, 2 channels, s16, 64 kb/s
        Stream #0:1(eng): Video: wmv3 (Main) (WMV3 / 0x33564D57), yuv420p, 320x240, 786 kb/s, 30 tbr, 1k tbn, 1k tbc
        Incompatible pixel format 'yuv420p' for codec 'mjpeg', auto-selecting format 'yuvj420p'
        [buffer @ 031D8DA0] w:320 h:240 pixfmt:yuv420p tb:1/1000000 sar:0/1 sws_param:
        [buffersink @ 031D8FA0] auto-inserting filter 'auto-inserted scale 0' between the filter 'src' and the filter 'out'
        [scale @ 03106C20] w:320 h:240 fmt:yuv420p -> w:320 h:240 fmt:yuvj420p flags:0x4
        [wmv3 @ 002BFA00] Extra data: 8 bits left, value: 0
        Output #0, image2, to '87334ed0-2bcf-4be5-82ae-9089c14e0323.jpg':
        Metadata:
        WMFSDKVersion   : 11.0.6002.18049
        WMFSDKNeeded    : 0.0.0.0000
        IsVBR           : 0
        encoder         : Lavf53.20.0
        Stream #0:0(eng): Video: mjpeg, yuvj420p, 320x240, q=2-31, 200 kb/s, 90k tbn, 30 tbc
        Stream mapping:
        Stream #0:1 -> #0:0 (wmv3 -> mjpeg)
        Press [q] to stop, [?] for help
        [image2 @ 03107920] Could not open file : 87334ed0-2bcf-4be5-82ae-9089c14e0323.jpg
        av_interleaved_write_frame(): Input/output error
        "   string

    I'm absolutely new to FFMPEG, so I don't know where to start to solve the above probleme.

    EDIT

    public ActionResult Convert()
    {
        Converter _converter = new Converter(@"C:\FfMpeg\ffmpeg.exe");
        OutputPackage oo = _converter.ConvertToFLV(@"C:\FfMpeg\Videos\Original\Video1.wmv");

        FileStream outStream = System.IO.File.OpenWrite(@"C:\FfMpeg\Videos\Converted\Video1.flv");
        oo.VideoStream.WriteTo(outStream);
        outStream.Flush();
        outStream.Close();

        oo.PreviewImage.Save(@"C:\FfMpeg\Videos\Thumbnail\Thumbnail1.jpg");

        return RedirectToAction("WatchMovie");
    }

    Thanks for helping

  • Video encoding from a file which is being creating from another recorder program

    3 décembre 2011, par John Smith

    well, this is an extreme question. There's a screen capturer program which records video to a file (only this program can record from the target application!) and I would like to stream it with FFmpeg by UPD/TCP. The question is how to encode a file what is being writing. Sadly that program creates big file and not seems to be accept any way to change encodings.

  • Convert Video to f4v & m4p using FFMPEG [closed]

    3 décembre 2011, par Tayyab Tariq

    I would like to convert a video in any given format (say xvid) to a f4v & m4p using ffmpeg. Can someone describe the step by step process?

  • Theatrical quality ffmpeg/x264 encoding of a high-motion 1080p video

    2 décembre 2011, par Ian

    I've been struggling with encoding videos using FFMPEG and x264. The output stutters when played back in Quicktime, while in VLC it shows a lot of compression artifacts at the same places Quicktime stutters. So it seems like Quicktime is stuttering because it's trying to suppress the corruption/artifacts.

    The videos have a lot of random motion in them, including frames where 75% of the pixels will change at a random interval (the video is software generated so it's truly pseudo-random). The compression seems to be choking in these places where it's likely detecting a "scene cut" incorrectly. It also seems to choke at regular intervals where I guess it's doing a keyframe.

    I've based my encoding preset off of the x264-hq preset that comes with FFMPEG. I've tried turning off scene cut detection, and playing with the keyint/g and keyint_min options. Setting g to 1 makes it work, but blows out the filesize. I've tried the lossless presets, but they won't playback at all in Quicktime. Oddly, I haven't had any problems when working with a lower-resolution test video (1440x810).

    Here's the preset I have right now, which works, but yields a file that's approximately 60% larger than the (non-working) hq preset yields. Is there any way to improve upon this? The filesize doesn't matter much, I just want something that will playback anywhere and be very high quality.

    coder=1
flags=+loop
cmp=+chroma
partitions=+parti8x8+parti4x4+partp8x8+partp4x4+partb8x8
me_method=umh
subq=8
me_range=16
g=1
keyint_min=1
sc_threshold=0
i_qfactor=0.71
b_strategy=1crf=20
qcomp=0.6
qmin=20
qmax=51
qdiff=4
bf=16
refs=4
trellis=1
flags2=+dct8x8+wpred+bpyramid+mixed_refs
wpredp=2

    Here's the command:

    ffmpeg \
  -r 60 -i "frame-%06d.tiff" \
  -vcodec libx264 -vpre my_preset \
  -threads 0 \
  -r 60 -an -f out.mp4

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