mplayer怎么指定解码器播放呢？

billkof · 发表于 2009-7-9 15:41:00

fedora11的mplayer好像优先用ffmpeg解码，而不会去用w32codecs，怎么样指定解码器呢？

错误如下
mplayer chap01.avi
MPlayer 29092-4.4.0 (C) 2000-2009 MPlayer Team
mplayer: could not connect to socket
mplayer: No such file or directory
Failed to open LIRC support. You will not be able to use your remote control.

Playing chap01.avi.
AVI file format detected.
[aviheader] Video stream found, -vid 0
[aviheader] Audio stream found, -aid 1
VIDEO: [tscc] 800x600 16bpp 15.000 fps 49.9 kbps ( 6.1 kbyte/s)
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Unsupported PixelFormat 10
Selected video codec: [ffcamtasia] vfm: ffmpeg (FFmpeg TechSmith Camtasia Screen Codec)
==========================================================================
==========================================================================
Opening audio decoder: [pcm] Uncompressed PCM audio decoder
AUDIO: 8000 Hz, 2 ch, u8, 128.0 kbit/100.00% (ratio: 16000->16000)
Selected audio codec: [pcm] afm: pcm (Uncompressed PCM)
==========================================================================
[pulse] working around probably broken pause functionality,
see http://www.pulseaudio.org/ticket/440
AO: [pulse] 8000Hz 2ch u8 (1 bytes per sample)
Starting playback...
Unsupported PixelFormat 10
Unsupported PixelFormat 10
VDec: vo config request - 800 x 600 (preferred colorspace: Unknown 0x0000)
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
The selected video_out device is incompatible with this codec.
Try appending the scale filter to your filter list,
e.g. -vf spp,scale instead of -vf spp.
Unsupported PixelFormat 10
Unsupported PixelFormat 10
VDec: vo config request - 800 x 600 (preferred colorspace: Unknown 0x0000)
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
The selected video_out device is incompatible with this codec.
Try appending the scale filter to your filter list,
e.g. -vf spp,scale instead of -vf spp.

FATAL: Could not initialize video filters (-vf) or video output (-vo).

Exiting... (End of file)

ildg · 发表于 2009-7-9 19:13:04

自己编译一个吧，应该有参数可以指定不用ffmpeg

usertesting · 发表于 2009-7-9 19:40:27

Post by billkof;2004783
fedora11的mplayer好像优先用ffmpeg解码，而不会去用w32codecs，怎么样指定解码器呢？

错误如下
mplayer chap01.avi
MPlayer 29092-4.4.0 (C) 2000-2009 MPlayer Team
mplayer: could not connect to socket
mplayer: No such file or directory
Failed to open LIRC support. You will not be able to use your remote control.

Playing chap01.avi.
AVI file format detected.
[aviheader] Video stream found, -vid 0
[aviheader] Audio stream found, -aid 1
VIDEO: [tscc] 800x600 16bpp 15.000 fps 49.9 kbps ( 6.1 kbyte/s)
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Unsupported PixelFormat 10
Selected video codec: [ffcamtasia] vfm: ffmpeg (FFmpeg TechSmith Camtasia Screen Codec)
==========================================================================
==========================================================================
Opening audio decoder: [pcm] Uncompressed PCM audio decoder
AUDIO: 8000 Hz, 2 ch, u8, 128.0 kbit/100.00% (ratio: 16000->16000)
Selected audio codec: [pcm] afm: pcm (Uncompressed PCM)
==========================================================================
[pulse] working around probably broken pause functionality,
see http://www.pulseaudio.org/ticket/440
AO: [pulse] 8000Hz 2ch u8 (1 bytes per sample)
Starting playback...
Unsupported PixelFormat 10
Unsupported PixelFormat 10
VDec: vo config request - 800 x 600 (preferred colorspace: Unknown 0x0000)
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
The selected video_out device is incompatible with this codec.
Try appending the scale filter to your filter list,
e.g. -vf spp,scale instead of -vf spp.
Unsupported PixelFormat 10
Unsupported PixelFormat 10
VDec: vo config request - 800 x 600 (preferred colorspace: Unknown 0x0000)
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
The selected video_out device is incompatible with this codec.
Try appending the scale filter to your filter list,
e.g. -vf spp,scale instead of -vf spp.

FATAL: Could not initialize video filters (-vf) or video output (-vo).

Exiting... (End of file)

man mplayer
解码/过滤器选项
   -ac <[-|+]编解码器1,[-|+]编解码器2,...[,]>
            按照在 codecs.conf 中音频编解码器的名称, 指定使用它们的优先级列表。编解码器名称前使用 "-" 表示忽略
            它。编解码器名称前使用 "+" 表示锁定它, 这有可能会崩溃!  如果列表尾有 "," MPlayer 使用没有列出的编解
            码器作为后备。
            注意: 可用的编解码器其完整列表请参见 -ac help。

            示例:
               -ac mp3acm
                  锁定 l3codeca.acm MP3 编解码器。
               -ac mad,
                  先尝试 libmad, 其它作为后备。
               -ac hwac3,a52,
                  先尝试通过硬件解码AC-3, 然后是软件AC-3, 最后是其它。
               -ac hwdts,
                  先尝试通过硬件解码DTS, 然后是其它。
               -ac -ffmp3,
                  跳过 FFmpeg 的 MP3 编解码器。

billkof · 发表于 2009-7-10 00:27:56

codecs.conf没有这个文件阿

usertesting · 发表于 2009-7-10 00:43:33

Post by billkof;2004923
codecs.conf没有这个文件阿

加-ac参数吧..

billkof · 发表于 2009-7-10 02:24:45

可以播放了，但是很卡，我是intel 集成显卡，mplayer -vc camtasia -vo gl chap01.avi
MPlayer 29092-4.4.0 (C) 2000-2009 MPlayer Team
mplayer: could not connect to socket
mplayer: No such file or directory
Failed to open LIRC support. You will not be able to use your remote control.

Playing chap01.avi.
AVI file format detected.
[aviheader] Video stream found, -vid 0
[aviheader] Audio stream found, -aid 1
VIDEO:  [tscc]  800x600  16bpp  15.000 fps 49.9 kbps ( 6.1 kbyte/s)
[gl] using extended formats. Use -vo gl:nomanyfmts if playback fails.
==========================================================================
Forced video codec: camtasia
Opening video decoder: [vfw] Win32/VfW video codecs
Loading codec DLL: 'tsccvid.dll'
Loaded DLL driver tsccvid.dll at 7f840000
VDec: vo config request - 800 x 600 (preferred colorspace: Packed YUY2)
[PP] Using codec's postprocessing, max q = 9.
VDec: using BGR 15-bit as output csp (no 2)
Movie-Aspect is undefined - no prescaling applied.
VO: [gl] 800x600 => 800x600 BGR 15-bit  [flip]
Selected video codec: [camtasia] vfm: vfw (TechSmith Camtasia Screen Codec)
==========================================================================
==========================================================================
Opening audio decoder: [pcm] Uncompressed PCM audio decoder
AUDIO: 8000 Hz, 2 ch, u8, 128.0 kbit/100.00% (ratio: 16000->16000)
Selected audio codec: [pcm] afm: pcm (Uncompressed PCM)
==========================================================================
[pulse] working around probably broken pause functionality,
      see http://www.pulseaudio.org/ticket/440
AO: [pulse] 8000Hz 2ch u8 (1 bytes per sample)
Starting playback...
No bind found for key 'MOUSE_BTN2'.                      ?% 0 0
A: 9.6 V: 8.4 A-V:  1.183 ct: -0.008 127/127  0% 61%  0.0% 50 0

         ************************************************
         **** Your system is too SLOW to play this!  ****
         ************************************************

Possible reasons, problems, workarounds:
- Most common: broken/buggy _audio_ driver
  - Try -ao sdl or use the OSS emulation of ALSA.
  - Experiment with different values for -autosync, 30 is a good start.
- Slow video output
  - Try a different -vo driver (-vo help for a list) or try -framedrop!
- Slow CPU
  - Don't try to play a big DVD/DivX on a slow CPU! Try some of the lavdopts,
e.g. -vfm ffmpeg -lavdopts lowres=1:fast:skiploopfilter=all.
- Broken file
  - Try various combinations of -nobps -ni -forceidx -mc 0.
- Slow media (NFS/SMB mounts, DVD, VCD etc)
  - Try -cache 8192.
- Are you using -cache to play a non-interleaved AVI file?
  - Try -nocache.
Read DOCS/HTML/en/video.html for tuning/speedup tips.
If none of this helps you, read DOCS/HTML/en/bugreports.html.

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