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Sur d’autres sites (6807)

  • How to convert raw .avi to .yuv through command line (YUV420) ?

    27 février 2016, par Natures Wrath

    I have tried the following command to no avail :

    ffmpeg -i in.avi -vcodec rawvideo -pix_fmt yuv420p out.yuv

    I have a raw avi file (which plays video on vlc). I then take .yuv file. I then tried this command :

    ffmpeg -i in.avi -c:v rawvideo -pix_fmt yuv420p out.yuv

    Still, no luck. I am at a loss as to why my output .yuv file is incorrect. I have a sneaking suspicion that my yuv is not being given the proper headers during this conversion.

    Does anyone know what I can do to get a proper .yuv file from a raw .avi (which I have confirmed is playable on vlc) ?

    Output from second command : (please note that "out.avi" is actually my in.avi from above two commands)

        ffmpeg version 2.8.6 Copyright (c) 2000-2016 the FFmpeg developers
    
  built with Apple LLVM version 7.0.2 (clang-700.1.81)
    
  configuration: --prefix=/usr/local/Cellar/ffmpeg/2.8.6 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-opencl --enable-libx264 --enable-libmp3lame --enable-libvo-aacenc --enable-libxvid --enable-vda
    
  libavutil      54. 31.100 / 54. 31.100
    
  libavcodec     56. 60.100 / 56. 60.100
    
  libavformat    56. 40.101 / 56. 40.101
    
  libavdevice    56.  4.100 / 56.  4.100
    
  libavfilter     5. 40.101 /  5. 40.101
    
  libavresample   2.  1.  0 /  2.  1.  0
    
  libswscale      3.  1.101 /  3.  1.101
    
  libswresample   1.  2.101 /  1.  2.101
    
  libpostproc    53.  3.100 / 53.  3.100
    
Input #0, avi, from 'out.avi':
    
  Metadata:
    
    encoder         : Lavf56.40.101
    
  Duration: 00:01:13.16, start: 0.000000, bitrate: 104602 kb/s
    
    Stream #0:0: Video: huffyuv (HFYU / 0x55594648), yuv422p, 1280x720, 104653 kb/s, SAR 1:1 DAR 16:9, 25 fps, 25 tbr, 25 tbn, 25 tbc
    
Output #0, rawvideo, to 'fin.yuv':
    
  Metadata:
    
    encoder         : Lavf56.40.101
    
    Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 25 fps, 25 tbn, 25 tbc
    
    Metadata:
    
      encoder         : Lavc56.60.100 rawvideo
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (huffyuv (native) -> rawvideo (native))
    
Press [q] to stop, [?] for help
    
frame=  124 fps=0.0 q=-0.0 size=  167400kB time=00:00:04.96 bitrate=276480.0kbits/s dup=1 drop=0   frame=  250 fps=249 q=-0.0 size=  337500kB time=00:00:10.00 bitrate=276480.0kbits/s dup=1 drop=0   frame=  372 fps=247 q=-0.0 size=  502200kB time=00:00:14.88 bitrate=276480.0kbits/s dup=1 drop=0   frame=  497 fps=247 q=-0.0 size=  670950kB time=00:00:19.88 bitrate=276480.0kbits/s dup=1 drop=0   frame=  621 fps=247 q=-0.0 size=  838350kB time=00:00:24.84 bitrate=276480.0kbits/s dup=1 drop=0   frame=  741 fps=246 q=-0.0 size= 1000350kB time=00:00:29.64 bitrate=276480.0kbits/s dup=1 drop=0   frame=  858 fps=244 q=-0.0 size= 1158300kB time=00:00:34.32 bitrate=276480.0kbits/s dup=1 drop=0   frame=  984 fps=245 q=-0.0 size= 1328400kB time=00:00:39.36 bitrate=276480.0kbits/s dup=1 drop=0   frame= 1108 fps=245 q=-0.0 size= 1495800kB time=00:00:44.32 bitrate=276480.0kbits/s dup=1 drop=0   frame= 1232 fps=245 q=-0.0 size= 1663200kB time=00:00:49.28 bitrate=276480.0kbits/s dup=1 drop=0   frame= 1356 fps=246 q=-0.0 size= 1830600kB time=00:00:54.24 bitrate=276480.0kbits/s dup=1 drop=0   frame= 1482 fps=246 q=-0.0 size= 2000700kB time=00:00:59.28 bitrate=276480.0kbits/s dup=1 drop=0   frame= 1606 fps=246 q=-0.0 size= 2168100kB time=00:01:04.24 bitrate=276480.0kbits/s dup=1 drop=0   frame= 1728 fps=246 q=-0.0 size= 2332800kB time=00:01:09.12 bitrate=276480.0kbits/s dup=1 drop=0   frame= 1829 fps=246 q=-0.0 Lsize= 2469150kB time=00:01:13.16 bitrate=276480.0kbits/s dup=1 drop=0    
    
video:2469150kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.000000%
    
100 taken.

  • FFmpeg converting video convert only audio in linux [on hold]

    29 février 2016, par Zuiche

    I’m trying to convert .flv to .mp4 in centos.
    I used "ffmpeg -i test.flv test.mp4" command.
    It works well in windows.
    But in linux, it’s result don’t have video, only have audio.

    I installed ffmpeg 3.0 using yum.

    ffmpeg command output :

    ffmpeg version 3.0
    
Copyright (c) 2000-2016 the FFmpeg developers built with gcc 4.1.2 (GCC) 20080704 (Red Hat 4.1.2-55)
    
configuration:
    
libavutil      55. 17.103 / 55. 17.103
    
libavcodec     57. 24.102 / 57. 24.102
    
libavformat    57. 25.100 / 57. 25.100
    
libavdevice    57.  0.101 / 57.  0.101
    
libavfilter     6. 31.100 /  6. 31.100
    
libswscale      4.  0.100 /  4.  0.100
    
libswresample   2.  0.101 /  2.  0.101

    What’s wrong with my ffmpeg ?
    Thanks in advice.

  • FFMPEG : Creating video stream from non-consecutively numbered png sequence [closed]

    8 mars 2016, par frageDE

    I have used VLC to decompose a video stream into frames, and it decomposed in a way that it leaps 5 frames per save, so the images are ordered like this :

    scene04436.png
    
scene04441.png
    
scene04446.png
    
scene04451.png
    
scene04456.png
    
scene04461.png
    
scene04466.png

    Now I want them to be a video stream again. I have already tried FFMPEG and AVCONV commands, they didn’t work out for me. The following command gives the error below :

    ffmpeg -framerate 1/5 -i scene%05d.png -c:v libx264 -r 30 -pix_fmt yuv420p out.mp4

    EDIT : Yes, I tried Googleing the ffmpeg commands, they did not work, mostly gave the error of :

        ffmpeg version 0.8.17-4:0.8.17-0ubuntu0.12.04.1, Copyright (c) 2000-2014 the Libav developers built on Mar 16 2015 13:26:50 with gcc 4.6.3
    

    
The ffmpeg program is only provided for script compatibility and will be removed in a future release. It has been deprecated in the Libav project to allow for incompatible command line syntax improvements in its replacement called avconv
    

    
(see Changelog for details). Please use avconv instead.
    
Input #0, image2, from 'scene%05d.png':
    
  Duration: 00:00:05.00, start: 0.000000, bitrate: N/A
    
    Stream #0.0: Video: png, bgra, 720x480, 0.20 tbr, 0.20 tbn, 0.20 tbc
    

    
Unrecognized option 'c:v'
    
Failed to set value 'libx264' for option 'c:v'

    EDIT2 : This is the version output on my console for the FFMPEG

    ffmpeg version 3.0 Copyright (c) 2000-2016 the FFmpeg developers
    
built with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
    
configuration: --disable-yasm
    
libavutil      55. 17.103 / 55. 17.103
    
libavcodec     57. 24.102 / 57. 24.102
    
libavformat    57. 25.100 / 57. 25.100
    
libavdevice    57.  0.101 / 57.  0.101
    
libavfilter     6. 31.100 /  6. 31.100
    
libswscale      4.  0.100 /  4.  0.100
    
libswresample   2.  0.101 /  2.  0.101

    Any suggestions ?

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