Dotaz: mplayer a nizka hlasitost zvuku u jednoho videosouboru

[Čech Antonín]

Zdravim, prosim o radu. U jednoho avicka mam na jednom pc velmi, velmi ztlumeny zvuk (takrka neslysitelny), problem je zrejme u totoho avi, vse ostatni mi hraje bez problemu. Na druhem PC vsak hraje bez problemu. Pro prehravani pouzivam Freevo, resp. mplayer.

/usr/bin/mplayer -slave -autosync 100 -nolirc -nojoystick -autoq 100 -screenw 1024 -screenh 768 -fs -ao oss:/dev/dsp -vo xv,sdl,x11, -cache 5000 -idx /mnt/1400gb/VIDEO/pohadky/za_humny_je_drak.avi -vf pp=de

Problemove pc ma zvuk Realtek ALC883
OK ma zvuk Realtek ALC888

nefunkcni avi :

czechtony@gate2:/mnt/1400gb/VIDEO/pohadky$ mplayer -ao null -vo null za_humny_je_drak.avi 
MPlayer dev-SVN-r26940
CPU: Intel(R) Core(TM)2 Duo CPU     E7400  @ 2.80GHz (Family: 6, Model: 23, Stepping: 10)
CPUflags:  MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
Compiled with runtime CPU detection.
Can't open joystick device /dev/input/js0: No such file or directory
Can't init input joystick
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 za_humny_je_drak.avi.
AVI file format detected.
[aviheader] Video stream found, -vid 0
[aviheader] Audio stream found, -aid 1
VIDEO:  [DX50]  720x576  24bpp  25.000 fps  1199.5 kbps (146.4 kbyte/s)
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffodivx] vfm: ffmpeg (FFmpeg MPEG-4)
==========================================================================
==========================================================================
Opening audio decoder: [mp3lib] MPEG layer-2, layer-3
AUDIO: 48000 Hz, 2 ch, s16le, 128.0 kbit/8.33% (ratio: 16000->192000)
Selected audio codec: [mp3] afm: mp3lib (mp3lib MPEG layer-2, layer-3)
==========================================================================
AO: [null] 48000Hz 2ch s16le (2 bytes per sample)
Starting playback...
VDec: vo config request - 720 x 576 (preferred colorspace: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is 1.25:1 - prescaling to correct movie aspect.
VO: [null] 720x576 => 720x576 Planar YV12 
A:   0.8 V:   0.8 A-V:  0.000 ct: -0.000  22/ 22  1%  0%  3.4% 0 0 
Exiting... (Quit)

funkcni avi :

czechtony@gate2:/mnt/1400gb/VIDEO/pohadky$ mplayer -ao null -vo null kolobezka_prvni.avi 
MPlayer dev-SVN-r26940
CPU: Intel(R) Core(TM)2 Duo CPU     E7400  @ 2.80GHz (Family: 6, Model: 23, Stepping: 10)
CPUflags:  MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
Compiled with runtime CPU detection.
Can't open joystick device /dev/input/js0: No such file or directory
Can't init input joystick
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 kolobezka_prvni.avi.
AVI file format detected.
[aviheader] Video stream found, -vid 0
[aviheader] Audio stream found, -aid 1
VIDEO:  [DX50]  688x574  24bpp  25.000 fps  1290.8 kbps (157.6 kbyte/s)
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffodivx] vfm: ffmpeg (FFmpeg MPEG-4)
==========================================================================
==========================================================================
Opening audio decoder: [mp3lib] MPEG layer-2, layer-3
AUDIO: 44100 Hz, 2 ch, s16le, 128.0 kbit/9.07% (ratio: 16000->176400)
Selected audio codec: [mp3] afm: mp3lib (mp3lib MPEG layer-2, layer-3)
==========================================================================
AO: [null] 44100Hz 2ch s16le (2 bytes per sample)
Starting playback...
[mpeg4 @ 0xb40fa0]Invalid and inefficient vfw-avi packed B frames detected
VDec: vo config request - 688 x 574 (preferred colorspace: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is 1.20:1 - prescaling to correct movie aspect.
VO: [null] 688x574 => 688x574 Planar YV12 
A:   0.6 V:   0.6 A-V: -0.000 ct: -0.001  16/ 16  4%  0%  0.6% 0 0 
Exiting... (Quit)

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Odpovědi

[Andrej Herceg]

Pomôcť môže napr. mplayer -af volume=10:1 media.avi (to prvé číslo môže byť aj väčšie)

[petr_p]

Nevím, jak přesně funguje režim slave mplayeru, ale u obou citovaných výstupů máte AO: [null]. Takže bych se divil, kdyby vůbec nějaký zvuk z mplayeru vycházel. Jenže tam taky máte VO: [null], což je hodně divný.

Být vámi, začal zkoušel bych to na čistém mplayeru bez nadstaveb.

Taky výše píšte -ao oss:/dev/dsp, opravdu chcete používat OSS?

[Čech Antonín]

Null vystupy byly pouzity jen pro zobrazeni vlastnosti avicek.

Samotne video se prehrava prikazem uvedenym nahore.
Uz si nepamatuji duvod pouziti oss, nicmene funguje,
tak jsem to neresil - jestlize uvedeny prikaz prehrava
jeden soubor, proc neprehrava spravne i druhy takrka stejny.
Podezreni jsem tedy mel na avi soubor.

Problem mam jiz vyresen, avi soubor ma zvuk jen na levem
kanalu a patnactimetrovy kabel z PC do TV jej ma nekde prerusen
Holt jsem u tech pohadek nepoznal, ze mi nejde stereo.

Prisel jsem na to nahodou v mplayeru klavesami ( a ).
Viz.: Klavesove zkratky mplayeru