Why all the media player error messages?

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Author: joe@actionline.com
Date:  
To: plug-discuss
Subject: Why all the media player error messages?
Upon trying several different media players from the command line,
--- smplayer, vlc, kaffeine, dragon, and mplayer ---
to run the same test video file (myking.m4v), all of them generate
various error messages, including "No such file or directory."

This is odd because they all find the target file and play it fine.

So why do all these error messages appear and/or how can I stop them?



== $ smplayer myking.m4v
This is SMPlayer v. 0.7.0 (SVN r3809) running on Linux
QInotifyFileSystemWatcherEngine::addPaths: inotify_add_watch failed:
No such file or directory

== $ vlc myking.m4v
VLC media player 2.0.1 Twoflower (revision 2.0.1-0-gf432547)
[0x9712920] main libvlc: Running vlc with the default interface. Use
'cvlc' to use vlc w/o interface.
QInotifyFileSystemWatcherEngine::addPaths: inotify_add_watch failed:
No such file or directory
QFileSystemWatcher: failed to add paths: /home/joe/.config/ibus/bus

== $ kaffeine myking.m4v
QDBusConnection: session D-Bus connection created before
QCoreApplication. Application may misbehave.
QDBusConnection: session D-Bus connection created before
QCoreApplication. Application may misbehave.
== $ Upon exit, kaffeine shows these two lines:
QInotifyFileSystemWatcherEngine::addPaths: inotify_add_watch failed:
No such file or directory
QFileSystemWatcher: failed to add paths: /home/joe/.config/ibus/bus

== $ dragon myking.m4v
QPainter::begin: Paint device returned engine == 0, type: 2 (THREE
MORE TIMES)
QInotifyFileSystemWatcherEngine::addPaths: inotify_add_watch failed:
No such file or directory
QFileSystemWatcher: failed to add paths: /home/joe/.config/ibus/bus
Setting new source
New source: QUrl( "file:///home/joe/myking.m4v" )
Transitioning to state "playing"
State change
Moving from "null" 0 to "ready" 1
Transitioning to state "playing"
QPainter::begin: Paint device returned engine == 0, type: 2 (FIVE
MORE TIMES)
Stream changed to file:///home/joe/myking.m4v
State change
Moving from "ready" 1 to "paused" 4
Stream changed to file:///home/joe/myking.m4v
State change
Moving from "paused" 4 to "playing" 2
Fading to 1
Transitioning to state "ready"
State change
Moving from "playing" 2 to "paused" 4
(AFTER CTRL+C) (dragon:5855): WARNING **: gstvideo: failed to get
caps of pad xvimagesink0:sink
State change
Moving from "paused" 4 to "ready" 1
Transitioning to state "ready" (THIS LINE THREE MORE TIMES)

== $ mplayer myking.m4v
MPlayer2 UNKNOWN (C) 2000-2011 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 myking.m4v.
Detected file format: QuickTime/MPEG-4/Motion JPEG 2000 format
(libavformat)
[lavf] stream 0: video (h264), -vid 0
[lavf] stream 1: audio (aac), -aid 0, -alang eng
VIDEO: [H264] 624x352 24bpp 24.000 fps 200.1 kbps (24.4 kbyte/s)
Clip info:
major_brand: mp42
minor_version: 0
compatible_brands: mp42isomavc1
creation_time: 2013-04-07 16:52:21
encoder: HandBrake 0.9.8 2012071800
Load subtitles in .
Failed to open VDPAU backend libvdpau_nouveau.so: cannot open shared
object file:
No such file or directory
[vdpau] Error when calling vdp_device_create_x11: 1
[ass] auto-open
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Asking decoder to use 4 threads if supported.
Selected video codec: [ffh264] vfm: ffmpeg (FFmpeg H.264)
Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders
AUDIO: 44100 Hz, 2 ch, s16le, 92.9 kbit/6.59% (ratio: 11618->176400)
Selected audio codec: [ffaac] afm: ffmpeg (FFmpeg AAC (MPEG-2/MPEG-4
Audio))
[AO OSS] audio_setup: Can't open audio device /dev/dsp: No such file
or directory
AO: [alsa] 44100Hz 2ch s16le (2 bytes per sample)
Starting playback...
A: 0.0 V: 0.0 A-V: 0.000 ct: 0.000 0/ 0 ??% ??% ??,?% 0 0
Movie-Aspect is 1.74:1 - prescaling to correct movie aspect.
VO: [xv] 624x352 => 624x358 Planar YV12
A: 4.3 V: 4.3 A-V: 0.000 ct: 0.000 0/ 0 7% 1% 0.8% 0 0
Exiting... (Quit)



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