gnome-mplayer 为何会出现卡顿？

Question

播放 mp3 文件时随机出现卡顿。

使用空格键暂停/重新开始正在播放的视频时也会发生这种情况。但只有使用箭头键快进/快退该视频时才会发生这种情况。

下面是运行视频时创建的错误日志，其中显示了 mplayer 执行以下过程时生成的输出：

1. 打开视频文件
2. 播放
3. 使用空格键暂停/重新启动三次
4. 转发
5. 使用空格键暂停/重新启动三次

错误日志：

GMLIB-Message: Running with GIO support
GMLIB-Message: Using audio device: 
GMLIB-Message: after init: position=0.000 length=0.000 start_time=0.000 run_time=0.000 volume=0.00 player=dead media=unknown uri=
GMLIB-Message: failed to get mode: Error when getting information for file '/media/gringo/videos/options': No such file or directory
GMLIB-Message: opening options
GMLIB-Message: stat_result = -1
GMLIB-Message: is block false
GMLIB-Message: is character false
GMLIB-Message: is reg false
GMLIB-Message: is dir false
GMLIB-Message: playlist false
GMLIB-Message: embedded in window id 0x0
GMLIB-Message: playlist detection = false
GMLIB-Message: adding file:///media/gringo/videos/options to playlist (cancel = false)
GMLIB-Message: playlist detection = false
GMLIB-Message: adding file:///media/gringo/videos/filename to playlist (cancel = false)
GMLIB-Message: Using match: type='signal',interface='com.gnome.mplayer'
GMLIB-Message: Using match: type='signal',interface='org.gnome.SettingsDaemon'
GMLIB-Message: Using match: type='signal',interface='org.gnome.SettingsDaemon.MediaKeys'
GMLIB-Message: Proxy connections and Command connected
GMLIB-Message: Using match: type='signal',interface='org.mpris.MediaPlayer2'
GMLIB-Message: Using match: type='signal',interface='org.mpris.MediaPlayer2.Player'
GMLIB-Message: Proxy connections and Command connected ret = 2
GMLIB-Message: playing - file:///media/gringo/videos/options
GMLIB-Message: is playlist false
GMLIB-Message: old: position=0.000 length=0.000 start_time=0.000 run_time=0.000 volume=1.00 player=dead media=unknown uri=file:///media/gringo/videos/options
GMLIB-Message: new: position=0.000 length=0.000 start_time=0.000 run_time=0.000 volume=1.00 player=running media=unknown uri=file:///media/gringo/videos/options
GMLIB-Message: setting up mplayer
GMLIB-Message: mplayer -channels 2 -af-add export=/tmp/mplayer-af_exportmyyuew:512 -quiet -slave -noidle -noconsolecontrols -nostop-xscreensaver -identify -volume 100 -softvol -msglevel all=5 -osdlevel 0 -delay 0 -subdelay 0 -subpos 0 -sub-fuzziness 0 -wid 0x3c00020 -brightness 0 -contrast 0 -hue 0 -saturation 0 -nomsgcolor -nomsgmodule -nokeepaspect -ass -embeddedfonts -ass-font-scale 1 /media/gringo/videos/options
GMLIB-Message: launched: position=0.000 length=0.000 start_time=0.000 run_time=0.000 volume=1.00 player=running media=unknown uri=file:///media/gringo/videos/options
GMLIB-Message: < MPlayer2 2.0-728-g2c378c7-4 (C) 2000-2012 MPlayer Team
GMLIB-Message: < Cannot open file '/home/gringo/.mplayer/input.conf': No such file or directory
GMLIB-Message: < Failed to open /home/gringo/.mplayer/input.conf.
GMLIB-Message: < Cannot open file '/etc/mplayer/input.conf': No such file or directory
GMLIB-Message: < Failed to open /etc/mplayer/input.conf.
GMLIB-Message: < Playing /media/gringo/videos/options.
GMLIB-Message: < Cannot open file '/media/gringo/videos/options': No such file or directory
GMLIB-Message: < Failed to open /media/gringo/videos/options.
GMLIB-Message: < Exiting... (End of file)
GMLIB-Message: < ID_EXIT=EOF
GMLIB-Message: completed: position=0.000 length=0.000 start_time=0.000 run_time=0.000 volume=1.00 player=dead media=unknown uri=file:///media/gringo/videos/options

(gnome-mplayer:32407): GLib-CRITICAL **: Source ID 66 was not found when attempting to remove it

(gnome-mplayer:32407): GLib-CRITICAL **: Source ID 67 was not found when attempting to remove it

(gnome-mplayer:32407): GLib-CRITICAL **: Source ID 68 was not found when attempting to remove it
GMLIB-Message: finished: position=0.000 length=0.000 start_time=0.000 run_time=0.000 volume=1.00 player=dead media=unknown uri=file:///media/gringo/videos/options
GMLIB-Message: trying to enable screensaver
GMLIB-Message: playing - file:///media/gringo/videos/filename
GMLIB-Message: is playlist false
GMLIB-Message: old: position=0.000 length=0.000 start_time=0.000 run_time=0.000 volume=1.00 player=dead media=unknown uri=file:///media/gringo/videos/filename
GMLIB-Message: setting up mplayer
GMLIB-Message: new: position=0.000 length=0.000 start_time=0.000 run_time=0.000 volume=1.00 player=running media=unknown uri=file:///media/gringo/videos/filename
GMLIB-Message: mplayer -channels 2 -af-add export=/tmp/mplayer-af_exportmyyuew:512 -quiet -slave -noidle -noconsolecontrols -nostop-xscreensaver -identify -volume 100 -softvol -msglevel all=5 -osdlevel 0 -delay 0 -subdelay 0 -subpos 0 -sub-fuzziness 0 -wid 0x3c00020 -brightness 0 -contrast 0 -hue 0 -saturation 0 -nomsgcolor -nomsgmodule -nokeepaspect -ass -embeddedfonts -ass-font-scale 1 /media/gringo/videos/filename
GMLIB-Message: launched: position=0.000 length=0.000 start_time=0.000 run_time=0.000 volume=1.00 player=running media=unknown uri=file:///media/gringo/videos/filename
GMLIB-Message: < MPlayer2 2.0-728-g2c378c7-4 (C) 2000-2012 MPlayer Team
GMLIB-Message: < Cannot open file '/home/gringo/.mplayer/input.conf': No such file or directory
GMLIB-Message: < Failed to open /home/gringo/.mplayer/input.conf.
GMLIB-Message: < Cannot open file '/etc/mplayer/input.conf': No such file or directory
GMLIB-Message: < Failed to open /etc/mplayer/input.conf.
GMLIB-Message: < Playing /media/gringo/videos/filename.
GMLIB-Message: < Cannot open file '/media/gringo/videos/filename': No such file or directory
GMLIB-Message: < Failed to open /media/gringo/videos/filename.
GMLIB-Message: < Exiting... (End of file)
GMLIB-Message: < ID_EXIT=EOF
GMLIB-Message: completed: position=0.000 length=0.000 start_time=0.000 run_time=0.000 volume=1.00 player=dead media=unknown uri=file:///media/gringo/videos/filename

(gnome-mplayer:32407): GLib-CRITICAL **: Source ID 86 was not found when attempting to remove it

(gnome-mplayer:32407): GLib-CRITICAL **: Source ID 87 was not found when attempting to remove it

(gnome-mplayer:32407): GLib-CRITICAL **: Source ID 88 was not found when attempting to remove it
GMLIB-Message: finished: position=0.000 length=0.000 start_time=0.000 run_time=0.000 volume=1.00 player=dead media=unknown uri=file:///media/gringo/videos/filename
GMLIB-Message: trying to enable screensaver
GMLIB-Message: trying to enable screensaver

(gnome-mplayer:32407): GLib-CRITICAL **: Source ID 86 was not found when attempting to remove it

(gnome-mplayer:32407): GLib-CRITICAL **: Source ID 88 was not found when attempting to remove it

(gnome-mplayer:32407): GLib-CRITICAL **: Source ID 87 was not found when attempting to remove it
GMLIB-Message: completed: position=0.000 length=0.000 start_time=0.000 run_time=0.000 volume=1.00 player=dead media=unknown uri=file:///media/gringo/videos/filename

(gnome-mplayer:32407): GLib-CRITICAL **: Source ID 86 was not found when attempting to remove it

(gnome-mplayer:32407): GLib-CRITICAL **: Source ID 88 was not found when attempting to remove it

(gnome-mplayer:32407): GLib-CRITICAL **: Source ID 87 was not found when attempting to remove it
GMLIB-Message: completed: position=0.000 length=0.000 start_time=0.000 run_time=0.000 volume=1.00 player=dead media=unknown uri=file:///media/gringo/videos/filename
GMLIB-Message: old: position=0.000 length=0.000 start_time=0.000 run_time=0.000 volume=1.00 player=dead media=unknown uri=file:///media/gringo/videos/filename
GMLIB-Message: new: position=0.000 length=0.000 start_time=0.000 run_time=0.000 volume=1.00 player=dead media=unknown uri=file:///media/gringo/videos/filename
GMLIB-Message: opening playlist
GMLIB-Message: playlist detection = false
GMLIB-Message: adding file:///media/gringo/videos/video.mp4 to playlist (cancel = false)
GMLIB-Message: playing - file:///media/gringo/videos/video.mp4
GMLIB-Message: is playlist false
GMLIB-Message: old: position=0.000 length=0.000 start_time=0.000 run_time=0.000 volume=1.00 player=dead media=unknown uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: setting up mplayer
GMLIB-Message: mplayer -channels 2 -af-add export=/tmp/mplayer-af_exportmyyuew:512 -quiet -slave -noidle -noconsolecontrols -nostop-xscreensaver -identify -volume 100 -softvol -msglevel all=5 -osdlevel 0 -delay 0 -subdelay 0 -subpos 0 -sub-fuzziness 0 -wid 0x3c00020 -brightness 0 -contrast 0 -hue 0 -saturation 0 -nomsgcolor -nomsgmodule -nokeepaspect -ass -embeddedfonts -ass-font-scale 1 /media/gringo/videos/video.mp4
GMLIB-Message: new: position=0.000 length=0.000 start_time=0.000 run_time=0.000 volume=1.00 player=running media=unknown uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: launched: position=0.000 length=0.000 start_time=0.000 run_time=0.000 volume=1.00 player=running media=unknown uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: < MPlayer2 2.0-728-g2c378c7-4 (C) 2000-2012 MPlayer Team
GMLIB-Message: < Cannot open file '/home/gringo/.mplayer/input.conf': No such file or directory
GMLIB-Message: < Failed to open /home/gringo/.mplayer/input.conf.
GMLIB-Message: < Cannot open file '/etc/mplayer/input.conf': No such file or directory
GMLIB-Message: < Failed to open /etc/mplayer/input.conf.
GMLIB-Message: < Playing /media/gringo/videos/video.mp4.
GMLIB-Message: < Detected file format: QuickTime / MOV (libavformat)
GMLIB-Message: < ID_VIDEO_ID=0
GMLIB-Message: < [lavf] stream 0: video (h264), -vid 0
GMLIB-Message: < ID_AUDIO_ID=0
GMLIB-Message: < ID_AID_0_LANG=und
GMLIB-Message: < [lavf] stream 1: audio (aac), -aid 0, -alang und
GMLIB-Message: < Clip info:
GMLIB-Message: <  major_brand: mp42
GMLIB-Message: < ID_CLIP_INFO_NAME0=major_brand
GMLIB-Message: < ID_CLIP_INFO_VALUE0=mp42
GMLIB-Message: <  minor_version: 0
GMLIB-Message: < ID_CLIP_INFO_NAME1=minor_version
GMLIB-Message: < ID_CLIP_INFO_VALUE1=0
GMLIB-Message: <  compatible_brands: isommp42
GMLIB-Message: < ID_CLIP_INFO_NAME2=compatible_brands
GMLIB-Message: < ID_CLIP_INFO_VALUE2=isommp42
GMLIB-Message: <  creation_time: 2014-03-22 04:45:23
GMLIB-Message: < ID_CLIP_INFO_NAME3=creation_time
GMLIB-Message: < ID_CLIP_INFO_VALUE3=2014-03-22 04:45:23
GMLIB-Message: < ID_CLIP_INFO_N=4
GMLIB-Message: < Load subtitles in /media/gringo/videos/
GMLIB-Message: < ID_FILENAME=/media/gringo/videos/video.mp4
GMLIB-Message: < ID_DEMUXER=lavfpref
GMLIB-Message: < ID_VIDEO_FORMAT=H264
GMLIB-Message: Setting to minimum size so that mplayer has something to draw to
GMLIB-Message: < ID_VIDEO_BITRATE=281136
GMLIB-Message: < ID_VIDEO_WIDTH=640
GMLIB-Message: < ID_VIDEO_HEIGHT=360
GMLIB-Message: < ID_VIDEO_FPS=30.000
GMLIB-Message: < ID_VIDEO_ASPECT=1.7778
GMLIB-Message: < ID_AUDIO_FORMAT=MP4A
GMLIB-Message: < ID_AUDIO_BITRATE=96000
GMLIB-Message: < ID_AUDIO_RATE=44100
GMLIB-Message: < ID_AUDIO_NCH=2
GMLIB-Message: < ID_START_TIME=0.00
GMLIB-Message: < ID_LENGTH=4128.14
GMLIB-Message: < ID_SEEKABLE=1
GMLIB-Message: < ID_CHAPTERS=0
GMLIB-Message: < ERROR: Failed to open VDPAU backend libvdpau_i915.so: cannot open shared object file: No such file or directory
GMLIB-Message: < [vdpau] Error when calling vdp_device_create_x11: 1
GMLIB-Message: < [VO_XV] Could not grab port 70.
GMLIB-Message: < [ass] auto-open
GMLIB-Message: < Selected video codec: H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 [libavcodec]
GMLIB-Message: < ID_VIDEO_CODEC=ffh264
GMLIB-Message: < Selected audio codec: AAC (Advanced Audio Coding) [libavcodec]
GMLIB-Message: < AUDIO: 44100 Hz, 2 ch, floatle, 96.0 kbit/3.40% (ratio: 12000->352800)
GMLIB-Message: < ID_AUDIO_BITRATE=96000
GMLIB-Message: < ID_AUDIO_RATE=44100
GMLIB-Message: < ID_AUDIO_NCH=2
GMLIB-Message: < [export] Exporting to file: /tmp/mplayer-af_exportmyyuew
GMLIB-Message: < [export] Memory mapped to file: /tmp/mplayer-af_exportmyyuew (0x7fd8149a6000)
GMLIB-Message: < [export] Exporting to file: /tmp/mplayer-af_exportmyyuew
GMLIB-Message: < [export] Memory mapped to file: /tmp/mplayer-af_exportmyyuew (0x7fd8149a6000)
GMLIB-Message: < [export] Exporting to file: /tmp/mplayer-af_exportmyyuew
GMLIB-Message: < [export] Memory mapped to file: /tmp/mplayer-af_exportmyyuew (0x7fd8149a6000)
GMLIB-Message: < AO: [pulse] 44100Hz 2ch s16le (2 bytes per sample)
GMLIB-Message: < [export] Exporting to file: /tmp/mplayer-af_exportmyyuew
GMLIB-Message: < [export] Memory mapped to file: /tmp/mplayer-af_exportmyyuew (0x7fd8149a6000)
GMLIB-Message: < [export] Exporting to file: /tmp/mplayer-af_exportmyyuew
GMLIB-Message: < [export] Memory mapped to file: /tmp/mplayer-af_exportmyyuew (0x7fd8149a6000)
GMLIB-Message: < ID_AUDIO_CODEC=ffaac
GMLIB-Message: < [Mixer] No hardware mixing, inserting volume filter.
GMLIB-Message: < [export] Exporting to file: /tmp/mplayer-af_exportmyyuew
GMLIB-Message: < [export] Memory mapped to file: /tmp/mplayer-af_exportmyyuew (0x7fd8149a6000)
GMLIB-Message: < [export] Exporting to file: /tmp/mplayer-af_exportmyyuew
GMLIB-Message: < [export] Memory mapped to file: /tmp/mplayer-af_exportmyyuew (0x7fd8149a6000)
GMLIB-Message: < Starting playback...
GMLIB-Message: < VIDEO:  640x360  30.000 fps  281.1 kbps (35.1 kB/s)
GMLIB-Message: < ID_VIDEO_ASPECT=1.7778
GMLIB-Message: < VO: [xv] 640x360 => 640x360 Planar YV12
GMLIB-Message: media_loaded: position=0.000 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=play uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: trying to disable screensaver
GMLIB-Message: trying to disable screensaver
GMLIB-Message: < Failed to get value of property 'sub_source'.
GMLIB-Message: current size = 0 x 0
GMLIB-Message: Changing window size to 640 x 360 visible = true
GMLIB-Message: current size = 640 x 360
GMLIB-Message: Changing window size to 640 x 360 visible = true
GMLIB-Message: old: position=2.500 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=play uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: trying to enable screensaver
GMLIB-Message: new: position=2.500 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=pause uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: old: position=2.500 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=pause uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: trying to disable screensaver
GMLIB-Message: new: position=2.500 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=play uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: old: position=2.500 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=play uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: trying to enable screensaver
GMLIB-Message: new: position=2.500 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=pause uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: old: position=2.500 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=pause uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: trying to disable screensaver
GMLIB-Message: new: position=2.500 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=play uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: old: position=5.300 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=play uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: trying to enable screensaver
GMLIB-Message: new: position=5.300 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=pause uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: old: position=5.300 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=pause uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: trying to disable screensaver
GMLIB-Message: new: position=5.300 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=play uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: old: position=18.500 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=play uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: trying to enable screensaver
GMLIB-Message: new: position=18.500 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=pause uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: old: position=18.500 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=pause uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: trying to disable screensaver
GMLIB-Message: new: position=18.500 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=play uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: old: position=18.500 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=play uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: trying to enable screensaver
GMLIB-Message: new: position=18.500 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=pause uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: old: position=18.500 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=pause uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: trying to disable screensaver
GMLIB-Message: new: position=18.500 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=play uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: old: position=18.500 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=play uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: trying to enable screensaver
GMLIB-Message: new: position=18.500 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=pause uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: old: position=18.500 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=pause uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: trying to disable screensaver
GMLIB-Message: new: position=18.500 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=play uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: old: position=18.500 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=play uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: trying to enable screensaver
GMLIB-Message: new: position=18.500 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=pause uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: old: position=18.500 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=pause uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: trying to disable screensaver
GMLIB-Message: new: position=18.500 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=play uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: old: position=18.500 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=play uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: trying to enable screensaver
GMLIB-Message: new: position=18.500 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=pause uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: old: position=18.500 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=pause uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: trying to disable screensaver
GMLIB-Message: new: position=18.500 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=play uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: old: position=18.500 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=play uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: trying to enable screensaver
GMLIB-Message: new: position=18.500 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=pause uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: old: position=18.500 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=pause uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: trying to disable screensaver
GMLIB-Message: new: position=18.500 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=play uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: old: position=20.200 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=play uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: trying to enable screensaver
GMLIB-Message: new: position=20.200 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=pause uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: old: position=20.200 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=pause uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: trying to disable screensaver
GMLIB-Message: new: position=20.200 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=play uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: old: position=20.200 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=play uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: trying to enable screensaver
GMLIB-Message: new: position=20.200 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=pause uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: old: position=20.200 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=pause uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: trying to disable screensaver
GMLIB-Message: new: position=20.200 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=play uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: old: position=20.200 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=play uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: trying to enable screensaver
GMLIB-Message: new: position=20.200 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=pause uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: old: position=20.200 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=pause uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: trying to disable screensaver
GMLIB-Message: new: position=20.200 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=play uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: old: position=22.100 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=play uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: trying to enable screensaver
GMLIB-Message: new: position=22.100 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=stop uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: trying to enable screensaver
GMLIB-Message: old: position=22.100 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=stop uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: new: position=22.100 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=running media=stop uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: < Exiting... (Quit)
GMLIB-Message: < ID_EXIT=QUIT
GMLIB-Message: completed: position=22.100 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=dead media=unknown uri=file:///media/gringo/videos/video.mp4

(gnome-mplayer:32407): GLib-CRITICAL **: Source ID 898 was not found when attempting to remove it

(gnome-mplayer:32407): GLib-CRITICAL **: Source ID 899 was not found when attempting to remove it

(gnome-mplayer:32407): GLib-CRITICAL **: Source ID 900 was not found when attempting to remove it
GMLIB-Message: finished: position=22.100 length=4128.140 start_time=0.000 run_time=0.000 volume=1.00 player=dead media=unknown uri=file:///media/gringo/videos/video.mp4
GMLIB-Message: trying to enable screensaver
GMLIB-Message: trying to enable screensaver
GMLIB-Message: trying to enable screensaver
GNOME MPlayer v1.0.9
gmtk v1.0.9
GTK 3.12.2
GLIB 2.42.0
GDA Enabled

一些明显的问题：

• 它似乎正在播放视频的目录中寻找选项 它在用户主目录中找不到 input.conf 文件 它一直“尝试启用屏幕保护程序”（在这个简短的测试中 20 次） 它一直“尝试禁用屏幕保护程序”（在这个简短的测试中 14 次） 它一直在启动它的用户目录中寻找名为“filename”的视频

mplayer 之所以成为最出色的媒体播放器，是因为它的键盘快捷键以及对播放位置和速度的完美控制。

当前安装的发行版：运行 xfce4 的 Ubuntu 15.04：当前安装的版本：

gnome-mplayer
Versions:
1.0.9-3 (/var/lib/apt/lists/gb.archive.ubuntu.com_ubuntu_dists_vivid_universe_binary-amd64_Packages) (/var/lib/dpkg/status)

Reverse Depends:
  gnome-mplayer:i386,gnome-mplayer
  smtube,gnome-mplayer
  lubuntu-desktop,gnome-mplayer
  gnome-mplayer-dbg,gnome-mplayer 1.0.9-3
  gecko-mediaplayer,gnome-mplayer 1.0.7
Dependencies:
1.0.9-3 - libasound2 (2 1.0.16) libc6 (2 2.7) libcairo2 (2 1.2.4) libcurl3-gnutls (2 7.16.2) libdbus-1-3 (2 1.0.2) libdbus-glib-1-2 (2 0.78) libgda-5.0-4 (2 5.0.2) libgdk-pixbuf2.0-0 (2 2.22.0) libglib2.0-0 (2 2.35.9) libgmlib1 (2 1.0.7) libgmtk1 (2 1.0.7) libgpod4 (2 0.6.0) libgtk-3-0 (2 3.7.10) libmusicbrainz3-6 (2 3.0.2) libnautilus-extension1a (2 1:2.91) libnotify4 (2 0.7.0) libx11-6 (0 (null)) libxss1 (0 (null)) dconf-gsettings-backend (16 (null)) gsettings-backend (0 (null)) mplayer2 (16 (null)) mplayer (0 (null)) gecko-mediaplayer (0 (null)) gnome-icon-theme-symbolic (0 (null)) xdg-utils (0 (null)) gnome-mplayer:i386 (0 (null))
Provides:
1.0.9-3 -
Reverse Provides:

Answer 1

这是播放/卡顿 mp3 时产生的错误日志：

GMLIB-Message: Running with GIO support
GMLIB-Message: Using audio device: 
GMLIB-Message: after init: position=0.000 length=0.000 start_time=0.000 run_time=0.000 volume=0.00 player=dead media=unknown uri=
GMLIB-Message: failed to get mode: Error when getting information for file '/media/gringo/videos/options': No such file or directory
GMLIB-Message: opening options
GMLIB-Message: stat_result = -1
GMLIB-Message: is block false
GMLIB-Message: is character false
GMLIB-Message: is reg false
GMLIB-Message: is dir false
GMLIB-Message: playlist false
GMLIB-Message: embedded in window id 0x0
GMLIB-Message: playlist detection = false
GMLIB-Message: adding file:///media/gringo/videos/options to playlist (cancel = false)
GMLIB-Message: playlist detection = false
GMLIB-Message: adding file:///media/gringo/videos/filename to playlist (cancel = false)
GMLIB-Message: Using match: type='signal',interface='com.gnome.mplayer'
GMLIB-Message: Using match: type='signal',interface='org.gnome.SettingsDaemon'
GMLIB-Message: Using match: type='signal',interface='org.gnome.SettingsDaemon.MediaKeys'
GMLIB-Message: Proxy connections and Command connected
GMLIB-Message: Using match: type='signal',interface='org.mpris.MediaPlayer2'
GMLIB-Message: Using match: type='signal',interface='org.mpris.MediaPlayer2.Player'
GMLIB-Message: Proxy connections and Command connected ret = 2
GMLIB-Message: playing - file:///media/gringo/videos/options
GMLIB-Message: is playlist false
GMLIB-Message: old: position=0.000 length=0.000 start_time=0.000 run_time=0.000 volume=1.00 player=dead media=unknown uri=file:///media/gringo/videos/options
GMLIB-Message: new: position=0.000 length=0.000 start_time=0.000 run_time=0.000 volume=1.00 player=running media=unknown uri=file:///media/gringo/videos/options
GMLIB-Message: setting up mplayer
GMLIB-Message: mplayer -channels 2 -af-add export=/tmp/mplayer-af_exportfnyykb:512 -quiet -slave -noidle -noconsolecontrols -nostop-xscreensaver -identify -volume 100 -softvol -msglevel all=5 -osdlevel 0 -delay 0 -subdelay 0 -subpos 0 -sub-fuzziness 0 -wid 0x3400020 -brightness 0 -contrast 0 -hue 0 -saturation 0 -nomsgcolor -nomsgmodule -nokeepaspect -ass -embeddedfonts -ass-font-scale 1 /media/gringo/videos/options
GMLIB-Message: launched: position=0.000 length=0.000 start_time=0.000 run_time=0.000 volume=1.00 player=running media=unknown uri=file:///media/gringo/videos/options
GMLIB-Message: < MPlayer2 2.0-728-g2c378c7-4 (C) 2000-2012 MPlayer Team
GMLIB-Message: < Cannot open file '/home/gringo/.mplayer/input.conf': No such file or directory
GMLIB-Message: < Failed to open /home/gringo/.mplayer/input.conf.
GMLIB-Message: < Cannot open file '/etc/mplayer/input.conf': No such file or directory
GMLIB-Message: < Failed to open /etc/mplayer/input.conf.
GMLIB-Message: < Playing /media/gringo/videos/options.
GMLIB-Message: < Cannot open file '/media/gringo/videos/options': No such file or directory
GMLIB-Message: < Failed to open /media/gringo/videos/options.
GMLIB-Message: < Exiting... (End of file)
GMLIB-Message: < ID_EXIT=EOF
GMLIB-Message: completed: position=0.000 length=0.000 start_time=0.000 run_time=0.000 volume=1.00 player=dead media=unknown uri=file:///media/gringo/videos/options

(gnome-mplayer:2764): GLib-CRITICAL **: Source ID 69 was not found when attempting to remove it

(gnome-mplayer:2764): GLib-CRITICAL **: Source ID 70 was not found when attempting to remove it

(gnome-mplayer:2764): GLib-CRITICAL **: Source ID 71 was not found when attempting to remove it
GMLIB-Message: finished: position=0.000 length=0.000 start_time=0.000 run_time=0.000 volume=1.00 player=dead media=unknown uri=file:///media/gringo/videos/options
GMLIB-Message: trying to enable screensaver
GMLIB-Message: playing - file:///media/gringo/videos/filename
GMLIB-Message: is playlist false
GMLIB-Message: old: position=0.000 length=0.000 start_time=0.000 run_time=0.000 volume=1.00 player=dead media=unknown uri=file:///media/gringo/videos/filename
GMLIB-Message: new: position=0.000 length=0.000 start_time=0.000 run_time=0.000 volume=1.00 player=running media=unknown uri=file:///media/gringo/videos/filename
GMLIB-Message: setting up mplayer
GMLIB-Message: mplayer -channels 2 -af-add export=/tmp/mplayer-af_exportfnyykb:512 -quiet -slave -noidle -noconsolecontrols -nostop-xscreensaver -identify -volume 100 -softvol -msglevel all=5 -osdlevel 0 -delay 0 -subdelay 0 -subpos 0 -sub-fuzziness 0 -wid 0x3400020 -brightness 0 -contrast 0 -hue 0 -saturation 0 -nomsgcolor -nomsgmodule -nokeepaspect -ass -embeddedfonts -ass-font-scale 1 /media/gringo/videos/filename
GMLIB-Message: launched: position=0.000 length=0.000 start_time=0.000 run_time=0.000 volume=1.00 player=running media=unknown uri=file:///media/gringo/videos/filename
GMLIB-Message: < MPlayer2 2.0-728-g2c378c7-4 (C) 2000-2012 MPlayer Team
GMLIB-Message: < Cannot open file '/home/gringo/.mplayer/input.conf': No such file or directory
GMLIB-Message: < Failed to open /home/gringo/.mplayer/input.conf.
GMLIB-Message: < Cannot open file '/etc/mplayer/input.conf': No such file or directory
GMLIB-Message: < Failed to open /etc/mplayer/input.conf.
GMLIB-Message: < Playing /media/gringo/videos/filename.
GMLIB-Message: < Cannot open file '/media/gringo/videos/filename': No such file or directory
GMLIB-Message: < Failed to open /media/gringo/videos/filename.
GMLIB-Message: < Exiting... (End of file)
GMLIB-Message: < ID_EXIT=EOF
GMLIB-Message: completed: position=0.000 length=0.000 start_time=0.000 run_time=0.000 volume=1.00 player=dead media=unknown uri=file:///media/gringo/videos/filename

(gnome-mplayer:2764): GLib-CRITICAL **: Source ID 89 was not found when attempting to remove it

(gnome-mplayer:2764): GLib-CRITICAL **: Source ID 90 was not found when attempting to remove it

(gnome-mplayer:2764): GLib-CRITICAL **: Source ID 91 was not found when attempting to remove it
GMLIB-Message: finished: position=0.000 length=0.000 start_time=0.000 run_time=0.000 volume=1.00 player=dead media=unknown uri=file:///media/gringo/videos/filename
GMLIB-Message: trying to enable screensaver
GMLIB-Message: trying to enable screensaver

(gnome-mplayer:2764): GLib-CRITICAL **: Source ID 89 was not found when attempting to remove it

(gnome-mplayer:2764): GLib-CRITICAL **: Source ID 91 was not found when attempting to remove it

(gnome-mplayer:2764): GLib-CRITICAL **: Source ID 90 was not found when attempting to remove it
GMLIB-Message: completed: position=0.000 length=0.000 start_time=0.000 run_time=0.000 volume=1.00 player=dead media=unknown uri=file:///media/gringo/videos/filename

(gnome-mplayer:2764): GLib-CRITICAL **: Source ID 89 was not found when attempting to remove it

(gnome-mplayer:2764): GLib-CRITICAL **: Source ID 91 was not found when attempting to remove it

(gnome-mplayer:2764): GLib-CRITICAL **: Source ID 90 was not found when attempting to remove it
GMLIB-Message: completed: position=0.000 length=0.000 start_time=0.000 run_time=0.000 volume=1.00 player=dead media=unknown uri=file:///media/gringo/videos/filename
GMLIB-Message: old: position=0.000 length=0.000 start_time=0.000 run_time=0.000 volume=1.00 player=dead media=unknown uri=file:///media/gringo/videos/filename
GMLIB-Message: new: position=0.000 length=0.000 start_time=0.000 run_time=0.000 volume=1.00 player=dead media=unknown uri=file:///media/gringo/videos/filename
GMLIB-Message: opening playlist
GMLIB-Message: playlist detection = false
GMLIB-Message: adding file:///media/gringo/videos/audio.mp3 to playlist (cancel = false)
GMLIB-Message: metadata retrieve from database is not valid, requesting it from media
GMLIB-Message: getting file metadata for /media/gringo/videos/audio.mp3
GMLIB-Message: mplayer -vo null -ao null -nomsgcolor -nomsgmodule -frames 0 -noidx -identify -nocache -noidle /media/gringo/videos/audio.mp3
GMLIB-Message: playing - file:///media/gringo/videos/audio.mp3
GMLIB-Message: is playlist false
GMLIB-Message: old: position=0.000 length=0.000 start_time=0.000 run_time=0.000 volume=1.00 player=dead media=unknown uri=file:///media/gringo/videos/audio.mp3
GMLIB-Message: new: position=0.000 length=0.000 start_time=0.000 run_time=0.000 volume=1.00 player=running media=unknown uri=file:///media/gringo/videos/audio.mp3
GMLIB-Message: setting up mplayer
GMLIB-Message: mplayer -channels 2 -af-add export=/tmp/mplayer-af_exportfnyykb:512 -quiet -slave -noidle -noconsolecontrols -nostop-xscreensaver -identify -volume 100 -softvol -msglevel all=5 -osdlevel 0 -delay 0 -subdelay 0 -subpos 0 -sub-fuzziness 0 -wid 0x3400020 -brightness 0 -contrast 0 -hue 0 -saturation 0 -nomsgcolor -nomsgmodule -nokeepaspect -ass -embeddedfonts -ass-font-scale 1 /media/gringo/videos/audio.mp3
GMLIB-Message: launched: position=0.000 length=0.000 start_time=0.000 run_time=0.000 volume=1.00 player=running media=unknown uri=file:///media/gringo/videos/audio.mp3
GMLIB-Message: < MPlayer2 2.0-728-g2c378c7-4 (C) 2000-2012 MPlayer Team
GMLIB-Message: < Cannot open file '/home/gringo/.mplayer/input.conf': No such file or directory
GMLIB-Message: < Failed to open /home/gringo/.mplayer/input.conf.
GMLIB-Message: < Cannot open file '/etc/mplayer/input.conf': No such file or directory
GMLIB-Message: < Failed to open /etc/mplayer/input.conf.
GMLIB-Message: < Playing /media/gringo/videos/audio.mp3.
GMLIB-Message: < Detected file format: MP2/3 (MPEG audio layer 2/3) (libavformat)
GMLIB-Message: < [mp3 @ 0x7ff22b431b40]max_analyze_duration 5000000 reached
GMLIB-Message: < ID_AUDIO_ID=0
GMLIB-Message: < [lavf] stream 0: audio (mp3), -aid 0
GMLIB-Message: < ID_VIDEO_ID=0
GMLIB-Message: < ID_VID_0_NAME=
GMLIB-Message: < [lavf] stream 1: video (png), -vid 0,
GMLIB-Message: < Clip info:
GMLIB-Message: <  major_brand: mp42
GMLIB-Message: < ID_CLIP_INFO_NAME0=major_brand
GMLIB-Message: < ID_CLIP_INFO_VALUE0=mp42
GMLIB-Message: <  minor_version: 0
GMLIB-Message: < ID_CLIP_INFO_NAME1=minor_version
GMLIB-Message: < ID_CLIP_INFO_VALUE1=0
GMLIB-Message: <  compatible_brands: isommp42
GMLIB-Message: < ID_CLIP_INFO_NAME2=compatible_brands
GMLIB-Message: < ID_CLIP_INFO_VALUE2=isommp42
GMLIB-Message: <  creation_time: 2014-03-22 04:45:23
GMLIB-Message: < ID_CLIP_INFO_NAME3=creation_time
GMLIB-Message: < ID_CLIP_INFO_VALUE3=2014-03-22 04:45:23
GMLIB-Message: <  encoder: Lavf56.1.0
GMLIB-Message: < ID_CLIP_INFO_NAME4=encoder
GMLIB-Message: < ID_CLIP_INFO_VALUE4=Lavf56.1.0
GMLIB-Message: < ID_CLIP_INFO_N=5
GMLIB-Message: < Load subtitles in /media/gringo/videos/
GMLIB-Message: < ID_FILENAME=/media/gringo/videos/audio.mp3
GMLIB-Message: < ID_DEMUXER=lavfpref
GMLIB-Message: < ID_AUDIO_FORMAT=85
GMLIB-Message: < ID_AUDIO_BITRATE=128000
GMLIB-Message: < ID_AUDIO_RATE=44100
GMLIB-Message: < ID_AUDIO_NCH=2
GMLIB-Message: < ID_START_TIME=0.00
GMLIB-Message: < ID_LENGTH=4128.18
GMLIB-Message: < ID_SEEKABLE=1
GMLIB-Message: < ID_CHAPTERS=0
GMLIB-Message: < Selected audio codec: MPEG 1.0/2.0/2.5 layers I, II, III [mpg123]
GMLIB-Message: < AUDIO: 44100 Hz, 2 ch, s16le, 128.0 kbit/9.07% (ratio: 16000->176400)
GMLIB-Message: < ID_AUDIO_BITRATE=128000
GMLIB-Message: < ID_AUDIO_RATE=44100
GMLIB-Message: < ID_AUDIO_NCH=2
GMLIB-Message: < [export] Exporting to file: /tmp/mplayer-af_exportfnyykb
GMLIB-Message: < [export] Memory mapped to file: /tmp/mplayer-af_exportfnyykb (0x7ff210e01000)
GMLIB-Message: < [export] Exporting to file: /tmp/mplayer-af_exportfnyykb
GMLIB-Message: < [export] Memory mapped to file: /tmp/mplayer-af_exportfnyykb (0x7ff210e01000)
GMLIB-Message: < AO: [pulse] 44100Hz 2ch s16le (2 bytes per sample)
GMLIB-Message: < [export] Exporting to file: /tmp/mplayer-af_exportfnyykb
GMLIB-Message: < [export] Memory mapped to file: /tmp/mplayer-af_exportfnyykb (0x7ff210e01000)
GMLIB-Message: < [export] Exporting to file: /tmp/mplayer-af_exportfnyykb
GMLIB-Message: < [export] Memory mapped to file: /tmp/mplayer-af_exportfnyykb (0x7ff210e01000)
GMLIB-Message: < ID_AUDIO_CODEC=mpg123
GMLIB-Message: < [Mixer] No hardware mixing, inserting volume filter.
GMLIB-Message: < [export] Exporting to file: /tmp/mplayer-af_exportfnyykb
GMLIB-Message: < [export] Memory mapped to file: /tmp/mplayer-af_exportfnyykb (0x7ff210e01000)
GMLIB-Message: < [export] Exporting to file: /tmp/mplayer-af_exportfnyykb
GMLIB-Message: < [export] Memory mapped to file: /tmp/mplayer-af_exportfnyykb (0x7ff210e01000)
GMLIB-Message: < Video: no video
GMLIB-Message: Running in audio only mode
GMLIB-Message: media_loaded: position=0.000 length=4128.180 start_time=0.000 run_time=0.000 volume=1.00 player=running media=play uri=file:///media/gringo/videos/audio.mp3
GMLIB-Message: < Starting playback...
GMLIB-Message: < Failed to set property 'sub_visibility' to '1'.
GMLIB-Message: old: position=39.400 length=4128.180 start_time=0.000 run_time=0.000 volume=1.00 player=running media=play uri=file:///media/gringo/videos/audio.mp3
GMLIB-Message: trying to enable screensaver
GMLIB-Message: new: position=39.400 length=4128.180 start_time=0.000 run_time=0.000 volume=1.00 player=running media=stop uri=file:///media/gringo/videos/audio.mp3
GMLIB-Message: trying to enable screensaver
GMLIB-Message: old: position=39.400 length=4128.180 start_time=0.000 run_time=0.000 volume=1.00 player=running media=stop uri=file:///media/gringo/videos/audio.mp3
GMLIB-Message: new: position=39.400 length=4128.180 start_time=0.000 run_time=0.000 volume=1.00 player=running media=stop uri=file:///media/gringo/videos/audio.mp3
GMLIB-Message: < Exiting... (Quit)
GMLIB-Message: < ID_EXIT=QUIT
GMLIB-Message: completed: position=39.400 length=4128.180 start_time=0.000 run_time=0.000 volume=1.00 player=dead media=unknown uri=file:///media/gringo/videos/audio.mp3

(gnome-mplayer:2764): GLib-CRITICAL **: Source ID 884 was not found when attempting to remove it

(gnome-mplayer:2764): GLib-CRITICAL **: Source ID 885 was not found when attempting to remove it

(gnome-mplayer:2764): GLib-CRITICAL **: Source ID 886 was not found when attempting to remove it
GMLIB-Message: finished: position=39.400 length=4128.180 start_time=0.000 run_time=0.000 volume=1.00 player=dead media=unknown uri=file:///media/gringo/videos/audio.mp3
GMLIB-Message: trying to enable screensaver
GMLIB-Message: trying to enable screensaver
GMLIB-Message: trying to enable screensaver
GNOME MPlayer v1.0.9
gmtk v1.0.9
GTK 3.12.2
GLIB 2.42.0
GDA Enabled