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由最新的 FFMPEG 創建的 mjpeg mov 在 Windows Media Player 中看起來像一半大小的視頻

tag-icon • tag-icon windows ffmpeg windows-media-player video-playback
由最新的 FFMPEG 創建的 mjpeg mov 在 Windows Media Player 中看起來像一半大小的視頻

我安裝了新版本的 FFMPEG，並建立了用 mjpeg 壓縮的 mov。在 Afx、Premiere 和 QucikTime 播放器中看起來很漂亮，但在 Windows Media Player 中看起來像是半尺寸的影片。以前版本的ffmpeg就沒有這個問題。您知道如何解決這個問題嗎？

ffmpeg -i "content/test1080.mov" -sameq -vcodec mjpeg -qmin 1 -qmax 1 -y -s 640x360 -f mov "content/test Big Web.mov"
ffmpeg version 1.0 Copyright (c) 2000-2012 the FFmpeg developers
  built on Nov  5 2012 11:15:58 with gcc 4.4.6 (GCC) 20110731 (Red Hat 4.4.6-3)
  configuration: --enable-avfilter --enable-libmp3lame --disable-mmx --arch=x86_32 --enable-libfaac --enable-nonfree --enable-filter=movie --enable-avfilter --enable-libx264 --enable-gpl
  libavutil      51. 73.101 / 51. 73.101
  libavcodec     54. 59.100 / 54. 59.100
  libavformat    54. 29.104 / 54. 29.104
  libavdevice    54.  2.101 / 54.  2.101
  libavfilter     3. 17.100 /  3. 17.100
  libswscale      2.  1.101 /  2.  1.101
  libswresample   0. 15.100 /  0. 15.100
  libpostproc    52.  0.100 / 52.  0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'content/test1080.mov':
  Metadata:
    major_brand     : qt
    minor_version   : 537199360
    compatible_brands: qt
    creation_time   : 2012-11-08 14:34:46
  Duration: 00:00:03.23, start: 0.000000, bitrate: 172538 kb/s
    Stream #0:0(eng): Video: mjpeg (jpeg / 0x6765706A), yuvj422p, 1920x1080 [SAR 72:72 DAR 16:9], 172517 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 30k tbc
    Metadata:
      creation_time   : 2012-11-08 14:34:46
      handler_name    : Procedura obsługi skrótów danych Apple
      timecode        : 00:00:10;11
    Stream #0:1(eng): Data: none (tmcd / 0x64636D74)
    Metadata:
      creation_time   : 2012-11-08 14:34:58
      handler_name    : Procedura obsługi skrótów danych Apple
      timecode        : 00:00:10;11
Output #0, mov, to 'content/test Big Web.mov':
  Metadata:
    major_brand     : qt
    minor_version   : 537199360
    compatible_brands: qt
    encoder         : Lavf54.29.104
    Stream #0:0(eng): Video: mjpeg (jpeg / 0x6765706A), yuvj422p, 640x360 [SAR 1:1 DAR 16:9], q=1-1, 200 kb/s, 30k tbn, 29.97 tbc
    Metadata:
      creation_time   : 2012-11-08 14:34:46
      handler_name    : Procedura obsługi skrótów danych Apple
      timecode        : 00:00:10;11
Stream mapping:
  Stream #0:0 -> #0:0 (mjpeg -> mjpeg)
Press [q] to stop, [?] for help
frame=   97 fps= 14 q=1.0 Lsize=   14282kB time=00:00:03.23 bitrate=36149.5kbits/s
video:14280kB audio:0kB subtitle:0 global headers:0kB muxing overhead 0.012432%

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