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Sur d’autres sites (15995)

  • FFmpeg and Android encoding issue

    4 décembre 2012, par brux

    I compiled ffmpeg for Android. The executable works from the device terminal and I can do normal video operations. I am trying to join 2 mpeg files captured using the camera at the command line on the device.

    First I Capture 2 videos using the camera and save to sdcard, one.mpeg and two.mpeg. Then I do :

     ffmpeg -i one.mpeg onenew.mpeg
    
 ffmpeg -i twompg.mpeg twonew.mpeg

    (if i dont do the above 2 commands then it doesnt work at all)

     cat onenew.mpeg twonew.mpeg > joined.mpeg
    
 ffmpeg -i joined.mpeg -acodec copy -vcodec copy final.mpeg

    The output (final.mpeg) doesnt play on the device but if i copy to my linux desktop it opens up and plays fine. I tested final.mpeg on a 2.3.3 device and a 2.3.6 device.

    Anyone know why the device would fail to play the video file ?

    UPDATE
    My friend tested the video on a device running 3.0, the default player never played the video however 'moboplayer' did, I need it to play on the default player though.

  • "Unknown encoder libx264" on Windows [migrated]

    29 novembre 2012, par shampoo

    I'm testing ClipBucket on a Windows XP system, and ClipBucket (open source video share) uses FFmpeg to convert videos. The final command it executes is (i changed it a little to make it compatible with the current FFmpeg) :

    D:\ffmpeg-snapshot-git\ffmpeg\ffmpeg.exe -i C:
    
\wamp\www\chclip/files/conversion_queue/1352973741c353c.mp4 -f flv -vcodec libx2
    
64 -pre normal -r 25 -s 426x240 -aspect 1.775 -vf "pad=10:20:30:40:yellow"  -ac
    
odec libfaac -ab 128000 -ar 22050 C:\wamp\www\chclip/files/videos/13540939451e18
    
4.flv 2> C:\wamp\www\chclip/files/temp/13540939461c124.tmp 2>&1

    And this is the response I get :

    ffmpeg version 1.0.git Copyright (c) 2000-2012 the FFmpeg developers
    
built on Nov 19 2012 16:42:42 with gcc 4.6.2 (GCC)
    
configuration:
    
libavutil      52.  8.100 / 52.  8.100
    
libavcodec     54. 73.100 / 54. 73.100
    
libavformat    54. 37.100 / 54. 37.100
    
libavdevice    54.  3.100 / 54.  3.100
    
libavfilter     3. 23.101 /  3. 23.101
    
libswscale      2.  1.102 /  2.  1.102
    
libswresample   0. 16.100 /  0. 16.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C:\wamp\www\chclip/files/conversion_que
    
ue/1352973741c353c.mp4':
    
Metadata:
    
major_brand     : isom
    
minor_version   : 512
    
compatible_brands: isomiso2avc1mp41
    
encoder         : Lavf53.21.0
    
Duration: 00:00:51.67, start: 0.000000, bitrate: 344 kb/s
    
Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 426x240 [
    
SAR 1:1 DAR 71:40], 308 kb/s, 15 fps, 15 tbr, 15 tbn, 30 tbc
    
Metadata:
    
handler_name    : VideoHandler
    
Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, s16, 31
    
kb/s
    
Metadata:
    
handler_name    : SoundHandler
    
Unknown encoder 'libx264'

    How can I get this libx264 working in Windows ?

  • "Unknown encoder libx264" on Windows [migrated]

    29 novembre 2012, par shampoo

    I'm testing ClipBucket on a Windows XP system, and ClipBucket (open source video share) uses FFmpeg to convert videos. The final command it executes is (i changed it a little to make it compatible with the current FFmpeg) :

    D:\ffmpeg-snapshot-git\ffmpeg\ffmpeg.exe -i C:
    
\wamp\www\chclip/files/conversion_queue/1352973741c353c.mp4 -f flv -vcodec libx2
    
64 -pre normal -r 25 -s 426x240 -aspect 1.775 -vf "pad=10:20:30:40:yellow"  -ac
    
odec libfaac -ab 128000 -ar 22050 C:\wamp\www\chclip/files/videos/13540939451e18
    
4.flv 2> C:\wamp\www\chclip/files/temp/13540939461c124.tmp 2>&1

    And this is the response I get :

    ffmpeg version 1.0.git Copyright (c) 2000-2012 the FFmpeg developers
    
built on Nov 19 2012 16:42:42 with gcc 4.6.2 (GCC)
    
configuration:
    
libavutil      52.  8.100 / 52.  8.100
    
libavcodec     54. 73.100 / 54. 73.100
    
libavformat    54. 37.100 / 54. 37.100
    
libavdevice    54.  3.100 / 54.  3.100
    
libavfilter     3. 23.101 /  3. 23.101
    
libswscale      2.  1.102 /  2.  1.102
    
libswresample   0. 16.100 /  0. 16.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C:\wamp\www\chclip/files/conversion_que
    
ue/1352973741c353c.mp4':
    
Metadata:
    
major_brand     : isom
    
minor_version   : 512
    
compatible_brands: isomiso2avc1mp41
    
encoder         : Lavf53.21.0
    
Duration: 00:00:51.67, start: 0.000000, bitrate: 344 kb/s
    
Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 426x240 [
    
SAR 1:1 DAR 71:40], 308 kb/s, 15 fps, 15 tbr, 15 tbn, 30 tbc
    
Metadata:
    
handler_name    : VideoHandler
    
Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, s16, 31
    
kb/s
    
Metadata:
    
handler_name    : SoundHandler
    
Unknown encoder 'libx264'

    How can I get this libx264 working in Windows ?

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