[FFmpeg-user] ffmpeg get video from video file of avi

[Jacky]

hi:
   i use the command:" ffmpeg -t 20 -i /data/test/media/1789035.avi -an -vcodec copy video.avi "   to get the video data. i get the ffmpeg info is:


[root at cdn 2269968]# ./ffmpeg  -i  audio.avi -i video.avi -c copy av.avi
ffmpeg version 2.0 Copyright (c) 2000-2013 the FFmpeg developers
  built on Jul 31 2013 10:34:48 with gcc 4.4.6 (GCC) 20110731 (Red Hat 4.4.6-3)
  configuration: --prefix=/data/test/jh/ffmpeg --extra-cflags=-I/data/test/jh/src/ffmpeg/include --extra-ldflags=-L/data/test/jh/src/ffmpeg/lib --enable-gpl --enable-version3 --enable-nonfree --enable-debug --enable-memalign-hack --enable-libfaac --enable-libaacplus --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxvid
  libavutil      52. 38.100 / 52. 38.100
  libavcodec     55. 18.102 / 55. 18.102
  libavformat    55. 12.100 / 55. 12.100
  libavdevice    55.  3.100 / 55.  3.100
  libavfilter     3. 79.101 /  3. 79.101
  libswscale      2.  3.100 /  2.  3.100
  libswresample   0. 17.102 /  0. 17.102
  libpostproc    52.  3.100 / 52.  3.100
Input #0, avi, from 'audio.avi':
  Metadata:
    encoder         : Lavf55.12.100
  Duration: 01:49:24.68, start: 0.000000, bitrate: 264 kb/s
    Stream #0:0: Audio: aac ([255][0][0][0] / 0x00FF), 44100 Hz, stereo, fltp, 256 kb/s


Input #1, avi, from 'video.avi':
  Metadata:
    encoder         : Lavf55.12.100
  Duration: 00:00:20.04, start: 0.000000, bitrate: 17246 kb/s
    Stream #1:0: Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1920x1080, 24 fps, 24 tbr, 24 tbn, 48 tbc
Output #0, avi, to 'av.avi':
  Metadata:
    ISFT            : Lavf55.12.100
    Stream #0:0: Video: h264 (avc1 / 0x31637661), yuv420p, 1920x1080, q=2-31, 24 fps, 24 tbn, 24 tbc
    Stream #0:1: Audio: aac ([255][0][0][0] / 0x00FF), 44100 Hz, stereo, 256 kb/s
Stream mapping:
  Stream #1:0 -> #0:0 (copy)
  Stream #0:0 -> #0:1 (copy)
Press [q] to stop, [?] for help
frame=  481 fps= 92 q=-1.0 Lsize=  254107kB time=01:49:24.67 bitrate= 317.1kbits/s    
video:42175kB audio:205146kB subtitle:0 global headers:0kB muxing overhead 2.743437%



and i test the video.avi use the command: /ffmpeg  -i video.avi  
i get:
ffmpeg version 2.0 Copyright (c) 2000-2013 the FFmpeg developers
  built on Jul 31 2013 10:34:48 with gcc 4.4.6 (GCC) 20110731 (Red Hat 4.4.6-3)
  configuration: --prefix=/data/test/jh/ffmpeg --extra-cflags=-I/data/test/jh/src/ffmpeg/include --extra-ldflags=-L/data/test/jh/src/ffmpeg/lib --enable-gpl --enable-version3 --enable-nonfree --enable-debug --enable-memalign-hack --enable-libfaac --enable-libaacplus --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxvid
  libavutil      52. 38.100 / 52. 38.100
  libavcodec     55. 18.102 / 55. 18.102
  libavformat    55. 12.100 / 55. 12.100
  libavdevice    55.  3.100 / 55.  3.100
  libavfilter     3. 79.101 /  3. 79.101
  libswscale      2.  3.100 /  2.  3.100
  libswresample   0. 17.102 /  0. 17.102
  libpostproc    52.  3.100 / 52.  3.100


Input #0, avi, from 'video.avi':
  Metadata:
    encoder         : Lavf55.12.100
  Duration: 00:00:20.04, start: 0.000000, bitrate: 17246 kb/s
    Stream #0:0: Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1920x1080, 24 fps, 24 tbr, 24 tbn, 48 tbc
At least one output file must be specified



and i use mediainfo :
 mediainfo video.avi
General
Complete name                            : video.avi
Format                                   : AVI
Format/Info                              : Audio Video Interleave
File size                                : 41.2 MiB
Duration                                 : 20s 42ms
Overall bit rate                         : 17.2 Mbps
Writing application                      : Lavf55.12.100


Video
ID                                       : 0
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : Main at L4.1
Format settings, CABAC                   : No
Format settings, ReFrames                : 2 frames
Codec ID                                 : avc1
Duration                                 : 20s 42ms
Bit rate                                 : 17.2 Mbps
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate                               : 24.000 fps
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 0.346
Stream size                              : 41.2 MiB (100%)
Color primaries                          : BT.709
Transfer characteristics                 : BT.709
Matrix coefficients                      : BT.709



it seem no  problem of this video.avi, but when i play this file, it has no picture. i try more than one player, but no one can play it.


thank you very much.