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Sur d’autres sites (11518)

  • Picturebox from AForge FFMPEG empty - C#/WinForms

    1er août 2017, par Jake Delson

    I’ve done a ton of research and looked at a lot of questions here but can’t seem to find anything to help me. I should preface I’m very new to C#, Windows Forms, and SO ! I’m a 1st year CompSci student coming from C++ experimenting with my own projects for the summer. I’m trying to display a series of bitmaps from a .avi using the AForge.Video.FFMPEG video file reader.

    It seems to be finding the file, getting its’ data (console prints dimensions, framerate, and codec) and creating the picturebox, but the picturebox comes up blank/empty. I get the bitmap from the frames of a .avi :

    From AForge example code here

    Then I’m trying to display it with a picture box :

    From MS example code here as well

    And here’s my code. Essentially a combination of the two :

       public class Simple : Form
    {
       Bitmap videoFrame;

       public Simple()
       {
           try
           {
               // create instance of video reader
               VideoFileReader reader = new VideoFileReader();
               // open video file
               reader.Open(@"C:\Users\User\Desktop\ScanTest3.AVI");
               // check some of its attributes
               Console.WriteLine("width:  " + reader.Width);
               Console.WriteLine("height: " + reader.Height);
               Console.WriteLine("fps:    " + reader.FrameRate);
               Console.WriteLine("codec:  " + reader.CodecName);

               PictureBox pictureBox1 = new PictureBox();

               // read 100 video frames out of it
               for (int i = 0; i < 100; i++)
               {
                   videoFrame = reader.ReadVideoFrame();

                   pictureBox1.SizeMode = PictureBoxSizeMode.StretchImage;
                   pictureBox1.ClientSize = new Size(videoFrame.Width, videoFrame.Height);
                   pictureBox1.Image = videoFrame;

                   // dispose the frame when it is no longer required
                   videoFrame.Dispose();
               }

               reader.Close();
           }

           catch
           {
               Console.WriteLine("Nope");
           }

       }
    }

    class MApplication
    {
       public static void Main()
       {
           Application.Run(new Simple());
       }
    }

    So that’s it pretty much. Just a blank picture box coming up, when it should have the first frame of the video, even though no exception caught (though I’m pretty confident I’m using the try/catch very poorly), and the console printing the correct data for the file :

    width:  720
    height: 480
    fps:    29
    codec:  dvvideo
    [swscaler @ 05E10060] Warning: data is not aligned! This can lead to a speedloss

    Though if anyone could tell me what that warning means, that would be great as well, but I’m mainly just lost as to why there’s no picture printing to the screen.

    Thanks !

  • AFTER PHP-FFMpeg not converting (error with ffmpeg)

    15 juin 2018, par Magurean Dan Sergiu

    I have installed ffmpeg server side with all the dependencies, updated it. And then installed PHP-FFMpeg with Composer. Tested that ffmpeg is instaled with a ssh conexion.

    root@host [/opt/ffmpeg]# ffmpeg
    ffmpeg version N-81322-ge8b355a Copyright (c) 2000-2016 the FFmpeg developers
    built with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-17)
    configuration: --disable-yasm
    libavutil      55. 28.100 / 55. 28.100
    libavcodec     57. 51.100 / 57. 51.100
    libavformat    57. 46.100 / 57. 46.100
    libavdevice    57.  0.102 / 57.  0.102
    libavfilter     6. 51.100 /  6. 51.100
    libswscale      4.  1.100 /  4.  1.100
    libswresample   2.  1.100 /  2.  1.100
    Hyper fast Audio and Video encoder
    usage: ffmpeg [options] [[infile options] -i infile]... {[outfile options]     outfile}...

    Use -h to get full help or, even better, run 'man ffmpeg'

    But when I try to convert a video file with a php script it throws me a very long error.
    PHP Code :

    <?PHP
    include($_SERVER['DOCUMENT_ROOT']."/vendors/install/vendor/autoload.php");
    $ffmpeg = FFMpeg\FFMpeg::create();
    $video = $ffmpeg->open($_SERVER['DOCUMENT_ROOT'].'/resources/uploads/96048/ffd3c5e349fa5745159deef163b5c253.wmv');
    $video
          ->filters()
          ->synchronize();
    $format = new FFMpeg\Format\Video\X264();
    $format->on('progress', function ($video, $format, $percentage) {
       echo "$percentage % transcoded";});
    $video
         ->save($format,$_SERVER['DOCUMENT_ROOT'].'/resources/uploads/96048/ffd3c5e349fa5745159deef163b5c253.mp4');
    ?>

    Error displayed :

    <b>Fatal error</b>:  Uncaught exception 'Alchemy\BinaryDriver\Exception\ExecutionFailureException' with message 'ffmpeg failed to execute command '/usr/local/bin/ffmpeg' '-y' '-i' '/home/user/working/resources/uploads/23097/2efeb41a1a7085a1dbd469c4895ac23e.wmv' '-async' '1' '-metadata:s:v:0' 'start_time=0' '-threads' '12' '-vcodec' 'libx264' '-acodec' 'libfaac' '-b:v' '1000k' '-refs' '6' '-coder' '1' '-sc_threshold' '40' '-flags' '+loop' '-me_range' '16' '-subq' '7' '-i_qfactor' '0.71' '-qcomp' '0.6' '-qdiff' '4' '-trellis' '1' '-b:a' '128k' '-pass' '1' '-passlogfile' '/tmp/ffmpeg-passes57ad320a1b685j794u/pass-57ad320a1b716' '/home/user/working/resources/uploads/23097/2efeb41a1a7085a1dbd469c4895ac23e.mp4'' in /home/user/working/vendors/install/vendor/alchemy/binary-driver/src/Alchemy/BinaryDriver/ProcessRunner.php:100↵Stack trace:↵#0 /home/user/working/vendors/install/vendor/alchemy/binary-driver/src/Alchemy/BinaryDriver/ProcessRunner.php(72): Alchemy\BinaryDriver\ProcessRunner-&amp;gt;doExecutionFailure(''/usr/bin/ffmpe...')↵#1 / in <b>/home/user/working/vendors/install/vendor/php-ffmpeg/php-ffmpeg/src/FFMpeg/Media/Video.php</b> on line <b>168</b><br />↵"

    Then I have took the basic code displayed upwards and ran it directly through ssh.

    '/usr/local/bin/ffmpeg' '-y' '-i' '/home/user/working/resources/uploads/23097/2efeb41a1a7085a1dbd469c4895ac23e.wmv' '-async' '1' '-metadata:s:v:0' 'start_time=0' '-threads' '12' '-vcodec' 'libx264' '-acodec' 'libfaac' '-b:v' '1000k' '-refs' '6' '-coder' '1' '-sc_threshold' '40' '-flags' '+loop' '-me_range' '16' '-subq' '7' '-i_qfactor' '0.71' '-qcomp' '0.6' '-qdiff' '4' '-trellis' '1' '-b:a' '128k' '-pass' '1' '-passlogfile' '/tmp/ffmpeg-passes57ad320a1b685j794u/pass-57ad320a1b716' '/home/user/working/resources/uploads/23097/2efeb41a1a7085a1dbd469c4895ac23e.mp4'

    And this is the response I get :

    ffmpeg version N-81322-ge8b355a Copyright (c) 2000-2016 the FFmpeg developers
     built with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-17)
     configuration: --disable-yasm
     libavutil      55. 28.100 / 55. 28.100
     libavcodec     57. 51.100 / 57. 51.100
     libavformat    57. 46.100 / 57. 46.100
     libavdevice    57.  0.102 / 57.  0.102
     libavfilter     6. 51.100 /  6. 51.100
     libswscale      4.  1.100 /  4.  1.100
     libswresample   2.  1.100 /  2.  1.100
    Guessed Channel Layout for Input Stream #0.0 : stereo
    Input #0, asf, from '/home/user/working/resources/uploads/23097/2efeb41a1a7085a1dbd469c4895ac23e.wmv':
     Metadata:
       SfOriginalFPS   : 299700
       WMFSDKVersion   : 11.0.6001.7000
       WMFSDKNeeded    : 0.0.0.0000
       comment         : Footage: Small World Productions, Inc; Tourism New Zealand | Producer: Gary F. Spradling | Music: Steve Ball
       title           : Wildlife in HD
       copyright       : © 2008 Microsoft Corporation
       IsVBR           : 0
       DeviceConformanceTemplate: AP@L3
     Duration: 00:00:30.09, start: 0.000000, bitrate: 6977 kb/s
       Stream #0:0(eng): Audio: wmav2 (a[1][0][0] / 0x0161), 44100 Hz, 2 channels, fltp, 192 kb/s
       Stream #0:1(eng): Video: vc1 (Advanced) (WVC1 / 0x31435657), yuv420p, 1280x720, 5942 kb/s, 29.97 fps, 29.97 tbr, 1k tbn, 1k tbc
    Unknown encoder 'libx264'

    My question is what to do next ? I have wasted 3 days to make this work and this is the furthest I have come. How can I test if libx264 is installed corectly ? And if it is not installed corectly how cand I reinstal or make it work ?

    After a few modifications

    I have used an already installed ffmpeg, and removed a few commands (that were by default the same) and this time I used only the command line.

    The request

    '/home/user/working/vendors/install/ffmpeg-git-20160813-64bit-static/ffmpeg' '-y' '-i' '/home/user/working/resources/uploads/96048/ffd3c5e349fa5745159deef163b5c253.wmv' '-async' '1' '-metadata:s:v:0' 'start_time=0' '-vcodec' 'libx264' '-c:a' 'aac' '-b:v' '1000k' '-b:a' '128k' '-pass' '1' '-passlogfile' '/tmp/ffmpeg-passes57b053ce14a12ljm8a/pass-57b053ce14ad3' '/home/user/working/resources/uploads/96048/ffd3c5e349fa5745159deef163b5c253.mp4'

    The new result :

    ffmpeg version N-81328-gceab04f-static http://johnvansickle.com/ffmpeg/  Copyright (c) 2000-2016 the FFmpeg developers
     built with gcc 5.4.1 (Debian 5.4.1-1) 20160803
     configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --enable-libmp3lame --enable-libx264 --enable-libx265 --enable-libwebp --enable-libspeex --enable-libvorbis --enable-libvpx --enable-libfreetype --enable-fontconfig --enable-libxvid --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvo-amrwbenc --enable-gray --enable-libopenjpeg --enable-libopus --enable-libass --enable-gnutls --enable-libvidstab --enable-libsoxr --enable-frei0r --enable-libfribidi --disable-indev=sndio --disable-outdev=sndio --enable-librtmp --enable-libmfx --enable-libzimg --cc=gcc-5
     libavutil      55. 28.100 / 55. 28.100
     libavcodec     57. 51.102 / 57. 51.102
     libavformat    57. 46.101 / 57. 46.101
     libavdevice    57.  0.102 / 57.  0.102
     libavfilter     6. 51.100 /  6. 51.100
     libswscale      4.  1.100 /  4.  1.100
     libswresample   2.  1.100 /  2.  1.100
     libpostproc    54.  0.100 / 54.  0.100
    Guessed Channel Layout for Input Stream #0.0 : stereo
    Input #0, asf, from '/home/user/working/resources/uploads/96048/ffd3c5e349fa5745159deef163b5c253.wmv':
     Metadata:
       SfOriginalFPS   : 299700
       WMFSDKVersion   : 11.0.6001.7000
       WMFSDKNeeded    : 0.0.0.0000
       comment         : Footage: Small World Productions, Inc; Tourism New Zealand | Producer: Gary F. Spradling | Music: Steve Ball
       title           : Wildlife in HD
       copyright       : © 2008 Microsoft Corporation
       IsVBR           : 0
       DeviceConformanceTemplate: AP@L3
     Duration: 00:00:30.09, start: 0.000000, bitrate: 6977 kb/s
       Stream #0:0(eng): Audio: wmav2 (a[1][0][0] / 0x0161), 44100 Hz, 2 channels, fltp, 192 kb/s
       Stream #0:1(eng): Video: vc1 (Advanced) (WVC1 / 0x31435657), yuv420p, 1280x720, 5942 kb/s, 29.97 fps, 29.97 tbr, 1k tbn, 1k tbc
    -async is forwarded to lavfi similarly to -af aresample=async=1:min_hard_comp=0.100000:first_pts=0.
    [libx264 @ 0x442f5c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
    [libx264 @ 0x442f5c0] ratecontrol_init: can't open stats file
    Output #0, mp4, to '/home/user/working/resources/uploads/96048/ffd3c5e349fa5745159deef163b5c253.mp4':
     Metadata:
       SfOriginalFPS   : 299700
       WMFSDKVersion   : 11.0.6001.7000
       WMFSDKNeeded    : 0.0.0.0000
       comment         : Footage: Small World Productions, Inc; Tourism New Zealand | Producer: Gary F. Spradling | Music: Steve Ball
       title           : Wildlife in HD
       copyright       : © 2008 Microsoft Corporation
       IsVBR           : 0
       DeviceConformanceTemplate: AP@L3
       Stream #0:0(eng): Unknown: none
       Metadata:
         start_time      : 0
         encoder         : Lavc57.51.102 libx264
       Stream #0:1(eng): Unknown: none
       Metadata:
         encoder         : Lavc57.51.102 aac
    Stream mapping:
     Stream #0:1 -> #0:0 (vc1 (native) -> h264 (libx264))
     Stream #0:0 -> #0:1 (wmav2 (native) -> aac (native))
    Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height
  • AFTER PHP-FFMpeg not converting (error with ffmpeg)

    15 août 2016, par Magurean Dan Sergiu

    I have installed ffmpeg server side with all the dependencies, updated it. And then installed PHP-FFMpeg with Composer. Tested that ffmpeg is instaled with a ssh conexion.

    root@host [/opt/ffmpeg]# ffmpeg
    ffmpeg version N-81322-ge8b355a Copyright (c) 2000-2016 the FFmpeg developers
    built with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-17)
    configuration: --disable-yasm
    libavutil      55. 28.100 / 55. 28.100
    libavcodec     57. 51.100 / 57. 51.100
    libavformat    57. 46.100 / 57. 46.100
    libavdevice    57.  0.102 / 57.  0.102
    libavfilter     6. 51.100 /  6. 51.100
    libswscale      4.  1.100 /  4.  1.100
    libswresample   2.  1.100 /  2.  1.100
    Hyper fast Audio and Video encoder
    usage: ffmpeg [options] [[infile options] -i infile]... {[outfile options]     outfile}...

    Use -h to get full help or, even better, run 'man ffmpeg'

    But when I try to convert a video file with a php script it throws me a very long error.
    PHP Code :

    &lt;?PHP
    include($_SERVER['DOCUMENT_ROOT']."/vendors/install/vendor/autoload.php");
    $ffmpeg = FFMpeg\FFMpeg::create();
    $video = $ffmpeg->open($_SERVER['DOCUMENT_ROOT'].'/resources/uploads/96048/ffd3c5e349fa5745159deef163b5c253.wmv');
    $video
          ->filters()
          ->synchronize();
    $format = new FFMpeg\Format\Video\X264();
    $format->on('progress', function ($video, $format, $percentage) {
       echo "$percentage % transcoded";});
    $video
         ->save($format,$_SERVER['DOCUMENT_ROOT'].'/resources/uploads/96048/ffd3c5e349fa5745159deef163b5c253.mp4');
    ?>

    Error displayed :

    <b>Fatal error</b>:  Uncaught exception 'Alchemy\BinaryDriver\Exception\ExecutionFailureException' with message 'ffmpeg failed to execute command '/usr/local/bin/ffmpeg' '-y' '-i' '/home/user/working/resources/uploads/23097/2efeb41a1a7085a1dbd469c4895ac23e.wmv' '-async' '1' '-metadata:s:v:0' 'start_time=0' '-threads' '12' '-vcodec' 'libx264' '-acodec' 'libfaac' '-b:v' '1000k' '-refs' '6' '-coder' '1' '-sc_threshold' '40' '-flags' '+loop' '-me_range' '16' '-subq' '7' '-i_qfactor' '0.71' '-qcomp' '0.6' '-qdiff' '4' '-trellis' '1' '-b:a' '128k' '-pass' '1' '-passlogfile' '/tmp/ffmpeg-passes57ad320a1b685j794u/pass-57ad320a1b716' '/home/user/working/resources/uploads/23097/2efeb41a1a7085a1dbd469c4895ac23e.mp4'' in /home/user/working/vendors/install/vendor/alchemy/binary-driver/src/Alchemy/BinaryDriver/ProcessRunner.php:100↵Stack trace:↵#0 /home/user/working/vendors/install/vendor/alchemy/binary-driver/src/Alchemy/BinaryDriver/ProcessRunner.php(72): Alchemy\BinaryDriver\ProcessRunner-&amp;gt;doExecutionFailure(''/usr/bin/ffmpe...')↵#1 / in <b>/home/user/working/vendors/install/vendor/php-ffmpeg/php-ffmpeg/src/FFMpeg/Media/Video.php</b> on line <b>168</b><br />↵"

    Then I have took the basic code displayed upwards and ran it directly through ssh.

    '/usr/local/bin/ffmpeg' '-y' '-i' '/home/user/working/resources/uploads/23097/2efeb41a1a7085a1dbd469c4895ac23e.wmv' '-async' '1' '-metadata:s:v:0' 'start_time=0' '-threads' '12' '-vcodec' 'libx264' '-acodec' 'libfaac' '-b:v' '1000k' '-refs' '6' '-coder' '1' '-sc_threshold' '40' '-flags' '+loop' '-me_range' '16' '-subq' '7' '-i_qfactor' '0.71' '-qcomp' '0.6' '-qdiff' '4' '-trellis' '1' '-b:a' '128k' '-pass' '1' '-passlogfile' '/tmp/ffmpeg-passes57ad320a1b685j794u/pass-57ad320a1b716' '/home/user/working/resources/uploads/23097/2efeb41a1a7085a1dbd469c4895ac23e.mp4'

    And this is the response I get :

    ffmpeg version N-81322-ge8b355a Copyright (c) 2000-2016 the FFmpeg developers
     built with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-17)
     configuration: --disable-yasm
     libavutil      55. 28.100 / 55. 28.100
     libavcodec     57. 51.100 / 57. 51.100
     libavformat    57. 46.100 / 57. 46.100
     libavdevice    57.  0.102 / 57.  0.102
     libavfilter     6. 51.100 /  6. 51.100
     libswscale      4.  1.100 /  4.  1.100
     libswresample   2.  1.100 /  2.  1.100
    Guessed Channel Layout for Input Stream #0.0 : stereo
    Input #0, asf, from '/home/user/working/resources/uploads/23097/2efeb41a1a7085a1dbd469c4895ac23e.wmv':
     Metadata:
       SfOriginalFPS   : 299700
       WMFSDKVersion   : 11.0.6001.7000
       WMFSDKNeeded    : 0.0.0.0000
       comment         : Footage: Small World Productions, Inc; Tourism New Zealand | Producer: Gary F. Spradling | Music: Steve Ball
       title           : Wildlife in HD
       copyright       : © 2008 Microsoft Corporation
       IsVBR           : 0
       DeviceConformanceTemplate: AP@L3
     Duration: 00:00:30.09, start: 0.000000, bitrate: 6977 kb/s
       Stream #0:0(eng): Audio: wmav2 (a[1][0][0] / 0x0161), 44100 Hz, 2 channels, fltp, 192 kb/s
       Stream #0:1(eng): Video: vc1 (Advanced) (WVC1 / 0x31435657), yuv420p, 1280x720, 5942 kb/s, 29.97 fps, 29.97 tbr, 1k tbn, 1k tbc
    Unknown encoder 'libx264'

    My question is what to do next ? I have wasted 3 days to make this work and this is the furthest I have come. How can I test if libx264 is installed corectly ? And if it is not installed corectly how cand I reinstal or make it work ?

    After a few modifications

    I have used an already installed ffmpeg, and removed a few commands (that were by default the same) and this time I used only the command line.

    The request

    '/home/user/working/vendors/install/ffmpeg-git-20160813-64bit-static/ffmpeg' '-y' '-i' '/home/user/working/resources/uploads/96048/ffd3c5e349fa5745159deef163b5c253.wmv' '-async' '1' '-metadata:s:v:0' 'start_time=0' '-vcodec' 'libx264' '-c:a' 'aac' '-b:v' '1000k' '-b:a' '128k' '-pass' '1' '-passlogfile' '/tmp/ffmpeg-passes57b053ce14a12ljm8a/pass-57b053ce14ad3' '/home/user/working/resources/uploads/96048/ffd3c5e349fa5745159deef163b5c253.mp4'

    The new result :

    ffmpeg version N-81328-gceab04f-static http://johnvansickle.com/ffmpeg/  Copyright (c) 2000-2016 the FFmpeg developers
     built with gcc 5.4.1 (Debian 5.4.1-1) 20160803
     configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --enable-libmp3lame --enable-libx264 --enable-libx265 --enable-libwebp --enable-libspeex --enable-libvorbis --enable-libvpx --enable-libfreetype --enable-fontconfig --enable-libxvid --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvo-amrwbenc --enable-gray --enable-libopenjpeg --enable-libopus --enable-libass --enable-gnutls --enable-libvidstab --enable-libsoxr --enable-frei0r --enable-libfribidi --disable-indev=sndio --disable-outdev=sndio --enable-librtmp --enable-libmfx --enable-libzimg --cc=gcc-5
     libavutil      55. 28.100 / 55. 28.100
     libavcodec     57. 51.102 / 57. 51.102
     libavformat    57. 46.101 / 57. 46.101
     libavdevice    57.  0.102 / 57.  0.102
     libavfilter     6. 51.100 /  6. 51.100
     libswscale      4.  1.100 /  4.  1.100
     libswresample   2.  1.100 /  2.  1.100
     libpostproc    54.  0.100 / 54.  0.100
    Guessed Channel Layout for Input Stream #0.0 : stereo
    Input #0, asf, from '/home/user/working/resources/uploads/96048/ffd3c5e349fa5745159deef163b5c253.wmv':
     Metadata:
       SfOriginalFPS   : 299700
       WMFSDKVersion   : 11.0.6001.7000
       WMFSDKNeeded    : 0.0.0.0000
       comment         : Footage: Small World Productions, Inc; Tourism New Zealand | Producer: Gary F. Spradling | Music: Steve Ball
       title           : Wildlife in HD
       copyright       : © 2008 Microsoft Corporation
       IsVBR           : 0
       DeviceConformanceTemplate: AP@L3
     Duration: 00:00:30.09, start: 0.000000, bitrate: 6977 kb/s
       Stream #0:0(eng): Audio: wmav2 (a[1][0][0] / 0x0161), 44100 Hz, 2 channels, fltp, 192 kb/s
       Stream #0:1(eng): Video: vc1 (Advanced) (WVC1 / 0x31435657), yuv420p, 1280x720, 5942 kb/s, 29.97 fps, 29.97 tbr, 1k tbn, 1k tbc
    -async is forwarded to lavfi similarly to -af aresample=async=1:min_hard_comp=0.100000:first_pts=0.
    [libx264 @ 0x442f5c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
    [libx264 @ 0x442f5c0] ratecontrol_init: can't open stats file
    Output #0, mp4, to '/home/user/working/resources/uploads/96048/ffd3c5e349fa5745159deef163b5c253.mp4':
     Metadata:
       SfOriginalFPS   : 299700
       WMFSDKVersion   : 11.0.6001.7000
       WMFSDKNeeded    : 0.0.0.0000
       comment         : Footage: Small World Productions, Inc; Tourism New Zealand | Producer: Gary F. Spradling | Music: Steve Ball
       title           : Wildlife in HD
       copyright       : © 2008 Microsoft Corporation
       IsVBR           : 0
       DeviceConformanceTemplate: AP@L3
       Stream #0:0(eng): Unknown: none
       Metadata:
         start_time      : 0
         encoder         : Lavc57.51.102 libx264
       Stream #0:1(eng): Unknown: none
       Metadata:
         encoder         : Lavc57.51.102 aac
    Stream mapping:
     Stream #0:1 -> #0:0 (vc1 (native) -> h264 (libx264))
     Stream #0:0 -> #0:1 (wmav2 (native) -> aac (native))
    Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height