totem+gst-plugins-ffmpeg播放H.264效果不佳

coderoar

安装的插件如下。

1. ~ # eix -I gst-plugins- -c
   
2. [i] media-libs/gst-plugins-bad (0.10.14@11/04/2009): Less plugins for GStreamer
   
3. [i] media-libs/gst-plugins-base (0.10.25(0.10)@11/16/2009): Basepack of plugins for gstreamer
   
4. [i] media-libs/gst-plugins-good (0.10.17(0.10)@11/17/2009): Basepack of plugins for gstreamer
   
5. [i] media-libs/gst-plugins-ugly (0.10.13(0.10)@12/02/2009): Basepack of plugins for gstreamer
   
6. [i] media-plugins/gst-plugins-alsa (0.10.25(0.10)@11/16/2009): plugin for gstreamer
   
7. [i] media-plugins/gst-plugins-ffmpeg (0.10.9(0.10)@11/17/2009): FFmpeg based gstreamer plugin
   
8. [i] media-plugins/gst-plugins-gconf (0.10.17(0.10)@11/17/2009): GStreamer plugin for wrapping GConf audio/video settings
   
9. [i] media-plugins/gst-plugins-gio (0.10.25(0.10)@11/16/2009): plugin for gstreamer
   
10. [i] media-plugins/gst-plugins-gnomevfs (0.10.25(0.10)@11/28/2009): plugin for gstreamer
    
11. [i] media-plugins/gst-plugins-meta (0.10-r3(0.10)[2]@12/02/2009): Meta ebuild to pull in gst plugins for apps
    
12. [i] media-plugins/gst-plugins-mimic (0.10.14(0.10)@11/04/2009): GStreamer plugin for the MIMIC codec
    
13. [i] media-plugins/gst-plugins-ogg (0.10.25(0.10)@11/16/2009): plugin for gstreamer
    
14. [i] media-plugins/gst-plugins-pango (0.10.25(0.10)@11/16/2009): plugin for gstreamer
    
15. [i] media-plugins/gst-plugins-soup (0.10.17(0.10)@11/17/2009): GStreamer plugin for HTTP client sources
    
16. [i] media-plugins/gst-plugins-taglib (0.10.17(0.10)@11/17/2009): plugin for gstreamer
    
17. [i] media-plugins/gst-plugins-theora (0.10.25(0.10)@11/16/2009): plugin for gstreamer
    
18. [i] media-plugins/gst-plugins-v4l (0.10.25(0.10)@11/16/2009): plugin for gstreamer
    
19. [i] media-plugins/gst-plugins-v4l2 (0.10.17(0.10)@11/17/2009): plugin for gstreamer
    
20. [i] media-plugins/gst-plugins-vorbis (0.10.25(0.10)@11/16/2009): plugin for gstreamer
    
21. [i] media-plugins/gst-plugins-x (0.10.25(0.10)@11/16/2009): plugin for gstreamer
    
22. [i] media-plugins/gst-plugins-xvideo (0.10.25(0.10)@11/16/2009): plugin for gstreamer
    
23. [i] media-plugins/gst-plugins-pps [1] (9999@11/28/2009): PPStream plugin for gstreamer
    
24. [1] "gentoo-china" /usr/portage/local/gentoo-china
    
25. [2] "coderoar" /usr/portage/local/coderoar
    
26. 
    
27. Found 22 matches.

复制代码

ffmpeg使用的use如下。

1. media-video/ffmpeg-0.5_p20373 was built with the following:
   
2. USE="-3dnow -3dnowext X alsa (-altivec) -bindist -cpudetection -custom-cflags -debug dirac -doc encode faac faad gsm hardcoded-tables -ieee1394 ipv6 -jack -jpeg2k mmx -mmxext mp3 (multilib) network opencore-amr -oss -pic schroedinger sdl speex ssse3 -test theora threads v4l v4l2 -vdpau vorbis x264 xvid zlib" VIDEO_CARDS="-nvidia"
   
3. CFLAGS="-march=native -O2 -pipe -I/usr/include/gsm"
   
4. CXXFLAGS="-march=native -O2 -pipe -I/usr/include/gsm"

复制代码

有个文件用mplayer能流畅播放，输出如下。

1. MPlayer SVN-r29796-4.3.2 (C) 2000-2009 MPlayer Team
   
2. 
   
3. Playing [黑客帝国2：重装上阵].The.Matrix.Reloaded.2003.BDRip.1080p.x264.DTS.DualAudio-CHD.D2.avi.
   
4. AVI file format detected.
   
5. [aviheader] Video stream found, -vid 0
   
6. [aviheader] Audio stream found, -aid 1
   
7. [aviheader] Audio stream found, -aid 2
   
8. AVI: ODML: Building ODML index (3 superindexchunks).
   
9. VIDEO:  [H264]  1920x800  24bpp  23.976 fps  12857.6 kbps (1569.5 kbyte/s)
   
10. Clip info:
    
11. Software: VirtualDubMod 1.5.10.1 (build 2439/release)
    
12. Copyright: chp@CHD
    
13. ==========================================================================
    
14. Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
    
15. Selected video codec: [ffh264] vfm: ffmpeg (FFmpeg H.264)
    
16. ==========================================================================
    
17. ==========================================================================
    
18. Opening audio decoder: [libdca] DTS decoding with libdca
    
19. Stream with high frequencies VQ coding
    
20. AUDIO: 48000 Hz, 2 ch, s16le, 1536.0 kbit/100.00% (ratio: 192000->192000)
    
21. Selected audio codec: [dts] afm: libdca (DTS-libdca)
    
22. ==========================================================================
    
23. AO: [oss] 48000Hz 2ch s16le (2 bytes per sample)
    
24. Starting playback...
    
25. Movie-Aspect is undefined - no prescaling applied.?% ??% ??,?% 0 0
    
26. VO: [xv] 1920x800 => 1920x800 Planar YV12
    
27. A:   2.7 V:   2.7 A-V:  0.002 ct:  0.002  66/ 66 65%  5%  4.9% 6 0
    
28. Exiting... (Quit)

复制代码

但是用totem，某些部分就会卡。由于没有安多余的插件，这个H.264的视频应该是由gst-plugins-ffmpeg处理的，为什么效果不如mplayer呢？

另外问下，目前ffmpeg的解码器和mplayer是共用或者相同的么？

everyoung

我觉得很流畅，CPU占用率比mplayer用vdpau还低，大概用的也是ffmpeg vdpau

Conanzsw

这个码率的片子不是硬解或者单核3g左右 死活都该卡了-。-
看上去2个都是软解且一样的解码器，mplayer用的就是ffmpeg项目中的libavcodec来解h264 （其实是一家人........   

至于h264的优化mplayer的主页写的很清楚了 就那么点｜｜
http://www.mplayerhq.hu/design7/news.html

ps：其实双核的可以考虑ffmpeg-mt的mplayer
http://nikita.melnichenko.name/b ... ayer-mt&lang=en
pss:我显卡(785g打开kms以后对h264的解码速度有提高 对xv的cpu占用比以前小了

coderoar

mplayer是好用，速度也快，可惜没有好的前端，好用的都是Qt的。

suddenkiller

我也在用totem+gstreamer，感觉还不错的，就是有一个问题。网上不少片子的音频部分用的ac3编码，我这里就是不能识别，不知道该装什么解码器。我在网上搜了一下，好像有不少人碰到这个问题，但是没找到明确的解决方法。