Make sure you are adding it to the [gnome-mplayer] portion of the config file or add
it to the extra options in the Edit -> Preferences -> Mplayer tab. Also you might
want to use -af-add volume=20 instead of just -af volume=20, so that other audio
filters work.

I can confirm that this option seems to have no effect when added the extra options
in the mplayer tab, although it does work in plain mplayer.

Extra Options: -idx -af-add scaletempo -af-add volume=20
(tried plenty of variations, and just the volume filter)

gnome-mplayer 0.9.8
mplayer 29411
arch linux

please post the output of gnome-mplayer -v and make sure the command line options are
being passed.

<b>Output without ~/.mplayer/config without af volume=20</b>

GNOME MPlayer v0.9.8
vo = gl ao = alsa
Running with GIO support
Master Playback is 0
Master Range is 0 to 64 
Master Current Volume 64, multiplier = 1.562500
Scaled Volume is 0.000000
Using volume of 0.00
Using softvol, setting volume to max (will be limited by mixer 100% of 0%)
opening eh.avi
is block 0
is character 0
is reg 1
is dir 0
playlist 0
embedded in window id 0x0
opening playlist
playlist detection = 0
adding file:///home/patrick/Downloads/eh.avi to playlist (cancel = 0)
getting file metadata for /home/patrick/Downloads/eh.avi
Using match: type='signal',interface='com.gnome.mplayer'
Using match: type='signal',interface='org.gnome.SettingsDaemon'
Using match: type='signal',interface='org.gnome.SettingsDaemon.MediaKeys'
Proxy connections and Command connected
playing - file:///home/patrick/Downloads/eh.avi
is playlist 0
current size = 0 x 0 
Changing window size to 1280 x 720 visible = 1
mplayer -profile gnome-mplayer -quiet -slave -identify -softvol -volume 0
-mixer-channel Master -framedrop -noconsolecontrols -noidle -osdlevel 0 -nomouseinput
-nocache -wid 0x4400030 -ss 0 -ass -noembeddedfonts -ass-font-scale 1.00 -ass-color
ffffff00 -channels 2 -vf-add screenshot -af-add
export=/tmp/mplayer-af_exportbyygrl:512 /home/patrick/Downloads/eh.avi 
current size = 1280 x 720 
Spawn succeeded for filename /home/patrick/Downloads/eh.avi
MPlayer SVN-r29463-4.3.2 (C) 2000-2009 MPlayer Team

Playing /home/patrick/Downloads/eh.avi.
AVI file format detected.
ID_VIDEO_ID=0
[aviheader] Video stream found, -vid 0
ID_AUDIO_ID=1
[aviheader] Audio stream found, -aid 1
AVI: ODML: Building ODML index (2 superindexchunks).
VIDEO:  [H264]  1280x720  24bpp  29.970 fps  1197.4 kbps (146.2 kbyte/s)
Clip info:
 Software: Windows Movie Maker 3.0
ID_CLIP_INFO_NAME0=Software
ID_CLIP_INFO_VALUE0=Windows Movie Maker 3.0
ID_CLIP_INFO_N=1
ID_FILENAME=/home/patrick/Downloads/eh.avi
ID_DEMUXER=avi
ID_VIDEO_FORMAT=H264
ID_VIDEO_BITRATE=1197416
ID_VIDEO_WIDTH=1280
ID_VIDEO_HEIGHT=720
ID_VIDEO_FPS=29.970
ID_VIDEO_ASPECT=0.0000
ID_AUDIO_FORMAT=85
ID_AUDIO_BITRATE=128000
ID_AUDIO_RATE=0
ID_AUDIO_NCH=0
ID_LENGTH=1469.90
ID_SEEKABLE=1
ERROR: Couldn't open video filter 'ass'.
ID_CHAPTERS=0
ERROR: ASS: cannot add video filter
[gl] using extended formats. Use -vo gl:nomanyfmts if playback fails.
Opening video filter: [scale]
Opening video filter: [screenshot]
[ass] Init
[ass] Updating font cache.
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffh264] vfm: ffmpeg (FFmpeg H.264)
==========================================================================
ID_VIDEO_CODEC=ffh264
==========================================================================
Opening audio decoder: [mp3lib] MPEG layer-2, layer-3
AUDIO: 48000 Hz, 2 ch, s16le, 128.0 kbit/8.33% (ratio: 16000->192000)
ID_AUDIO_BITRATE=128000
ID_AUDIO_RATE=48000
ID_AUDIO_NCH=2
Selected audio codec: [mp3] afm: mp3lib (mp3lib MPEG layer-2, layer-3)
==========================================================================
[export] Exporting to file: /tmp/mplayer-af_exportbyygrl
[export] Memory mapped to file: /tmp/mplayer-af_exportbyygrl (0x7fc227424000)
[export] Exporting to file: /tmp/mplayer-af_exportbyygrl
[export] Memory mapped to file: /tmp/mplayer-af_exportbyygrl (0x7fc227424000)
AO: [alsa] 48000Hz 2ch s16le (2 bytes per sample)
[export] Exporting to file: /tmp/mplayer-af_exportbyygrl
[export] Memory mapped to file: /tmp/mplayer-af_exportbyygrl (0x7fc230d20000)
[export] Exporting to file: /tmp/mplayer-af_exportbyygrl
[export] Memory mapped to file: /tmp/mplayer-af_exportbyygrl (0x7fc230d20000)
ID_AUDIO_CODEC=mp3
[Mixer] No hardware mixing, inserting volume filter.
[export] Exporting to file: /tmp/mplayer-af_exportbyygrl
[export] Memory mapped to file: /tmp/mplayer-af_exportbyygrl (0x7fc230d20000)
Starting playback...
ANS_switch_audio is invalid -1
VDec: vo config request - 1280 x 720 (preferred colorspace: Planar YV12)
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is 1.78:1 - prescaling to correct movie aspect.
ID_VIDEO_ASPECT=1.7778
[swscaler @ 0xc6c580]using unscaled yuv420p -> rgb32 special converter
VO: [gl] 1280x720 => 1280x720 BGRA 
Resizing to 1280 x 720
ERROR: X11 error: BadMatch (invalid parameter attributes)
current size = 0 x 0 
Changing window size to 1280 x 720 visible = 1
ANS_switch_audio is invalid -1
ERROR: Failed to get value of property 'sub_demux'.



<b>Output with ~/.mplayer/config without af volume=20</b>

GNOME MPlayer v0.9.8
vo = gl ao = alsa
Running with GIO support
Master Playback is 0
Master Range is 0 to 64 
Master Current Volume 64, multiplier = 1.562500
Scaled Volume is 0.000000
Using volume of 0.00
Using softvol, setting volume to max (will be limited by mixer 100% of 0%)
opening eh.avi
is block 0
is character 0
is reg 1
is dir 0
playlist 0
embedded in window id 0x0
opening playlist
playlist detection = 0
adding file:///home/patrick/Downloads/eh.avi to playlist (cancel = 0)
getting file metadata for /home/patrick/Downloads/eh.avi
Using match: type='signal',interface='com.gnome.mplayer'
Using match: type='signal',interface='org.gnome.SettingsDaemon'
Using match: type='signal',interface='org.gnome.SettingsDaemon.MediaKeys'
Proxy connections and Command connected
playing - file:///home/patrick/Downloads/eh.avi
is playlist 0
file:///home/patrick/Downloads/eh.avi is not marked as playable (0)

It seems that if in the ~/.mplayer/config the option has a space between words it
won't even play any files.  If it is written without spaces there is no difference
int the sound during playback.  I have tried both af volume=20 and af-add volume=20
in the config file.  I also tried both from the extra options without any success. 
It does not appear to be passing the options.

 Issue 329  has been merged into this issue.

Hi, sorry for my response time ...

Adding it to the extra options would be easy, but those low volume movies are only a
few in comparison to the normal ones. That makes changing this setting every time a
bit overkill for the use case.

Thanks for your quick reply!

best regards

So if this doesn't happen all the time, how do you propose implementing this? A
volume boost option in the preferences?

Yes, that would make the most sense, i guess.

Its just a usability enhancement, but makes everyday life a bit smoother :)

thank you !

I have implemented this enhancement in SVN. Since the -af volume filter implements
software volume control. The gain had to be added under that option. So enabled
mplayer software volume control and then adjust you gain. When you close the
preference box the media will be restarted at the approximate position of the media
with the new gain added.

Hi,

just testet current svn. The options are all there, but the mplayer-box is only
flahing up for a split-second and is gone again (On FreeBSD 8, gnome-mplayer 0.9.5
works fine) - It feels just like in  Issue 97 .

I get the attached output :)

output.txt 5.7 KB   Download

Your mplayer is much much too old, please upgrade to something current. rc2 is over
3yrs old now.

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