No sound capturing from AVerMedia DVD EZMaker PCI Deluxe

[Pericles]

I am trying to use this capture card with Ubuntu Feisty Fawn.

I installed latest v4l2 driver which supports this card.

I recompiled VLC with options --enable-v4l2 and --enable-pvr among others.

Now, I see the tab PVR for capturing from a card (while with VLC from repositories I saw a tab called Video4Linux).

Anyway, I play the VCR connected to the card (RCA connectors: composite video, audio left, audio right) and I manage to view the video but I have no audio.

Previously, I had to change the video input, with the command: v4l2-ctl -i 1 (to not use input 0 which is S-Video but input 1 which is composite).

I am trying other control commands for audio, like: v4l2-ctl --set-ctrl=volume=10, but no luck, though I think this might be something related to the driver v4l2 and not with the way VLC has been compiled.

Of course, I am able to play MPEG files successfully with this VLC, but when using the capture card I experience this problem with the audio.

This is the log output from VLC when running in debug mode:

[00000474] main playlist debug: adding playlist item `pvr://' ( pvr:// )
[00000474] main playlist debug: creating new input thread
[00000612] main input debug: waiting for thread completion
[00000612] main input debug: thread 2953759632 (input) created at priority 0 (input/input.c:265)
[00000612] main input debug: `pvr://' gives access `pvr' demux `' path `'
[00000612] main input debug: creating demux: access='pvr' demux='' path=''
[00000613] main demuxer debug: looking for access_demux module: 0 candidates
[00000613] main demuxer warning: no access_demux module matched "pvr"
[00000612] main input debug: creating access 'pvr' path=''
[00000614] main access debug: looking for access2 module: 10 candidates
[00000614] pvr access debug: Using video device: /dev/video0.
[00000614] pvr access debug: ivtv driver version 01.02.00
[00000614] pvr access debug: this driver uses the v4l2 API
[00000614] pvr access debug: Setting [0] bitrate_mode = 0
[00000614] main access debug: using access2 module "pvr"
[00000615] main private debug: pre-buffering...
[00000615] main private debug: received first data for our buffer
[00000615] main private debug: pre-buffering done 163835 bytes in 0s - 178 kbytes/s
[00000612] main input debug: creating demux: access='pvr' demux='' path=''
[00000616] main demuxer debug: looking for demux2 module: 78 candidates
[00000616] main demuxer debug: using demux2 module "ps"
[00000614] pvr access warning: Unimplemented query in control.
[00000612] main input debug: `pvr://' successfully opened
[00000612] main input debug: selecting program id=0
[00000617] main decoder debug: looking for decoder module: 38 candidates
[00000617] main decoder debug: using decoder module "libmpeg2"
[00000617] main decoder debug: thread 2945080208 (decoder) created at priority 0 (input/decoder.c:159)
[00000618] main decoder debug: looking for decoder module: 38 candidates
[00000618] main decoder debug: using decoder module "mpeg_audio"
[00000618] main decoder debug: thread 2985859984 (decoder) created at priority 0 (input/decoder.c:159)
[00000617] libmpeg2 decoder debug: 720x576 (display 720,576), aspect 540000, sar 1:1, 25.000 fps
[00000617] main decoder debug: no usable vout present, spawning one
[00000619] main video output debug: window size: 720x576
[00000619] main video output debug: looking for video output module: 10 candidates
[00000619] xvideo video output debug: adaptor 0, port 51, format 0x32315659 (YV12) planar
[00000620] main private debug: Registering subpicture channel, ID: 2
[00000620] main private debug: Registering subpicture channel, ID: 3
[00000620] main private debug: Registering subpicture channel, ID: 4
[00000620] main private debug: Registering subpicture channel, ID: 5
[00000619] xvideo video output debug: Window manager supports NetWM
[00000619] xvideo video output debug: Window manager supports _NET_WM_STATE_FULLSCREEN
[00000619] xvideo video output debug: Window manager supports _NET_WM_STATE_ABOVE
[00000619] xvideo video output debug: Window manager supports _NET_WM_STATE_BELOW
[00000619] main video output debug: using video output module "xvideo"
[00000619] main video output debug: waiting for thread completion
[00000618] mpeg_audio decoder debug: MPGA channels:2 samplerate:48000 bitrate:384
[00000574] main audio output debug: looking for audio output module: 6 candidates
[00000574] alsa audio output debug: opening ALSA device `default'
[00000574] main audio output debug: thread 2921331600 (aout) created at priority 0 (alsa.c:662)
[00000574] main audio output debug: using audio output module "alsa"
[00000574] main audio output debug: output 'fl32' 48000 Hz Stereo frame=1 samples/8 bytes
[00000574] main audio output debug: mixer 'fl32' 48000 Hz Stereo frame=1 samples/8 bytes
[00000574] main audio output debug: no need for any filter
[00000574] main audio output debug: looking for audio mixer module: 6 candidates
[00000574] main audio output debug: using audio mixer module "trivial_mixer"
[00000574] main audio output debug: input 'mpga' 48000 Hz Stereo frame=1152 samples/1161 bytes
[00000574] main audio output debug: filter(s) 'mpga'->'fl32' 48000 Hz->48000 Hz Stereo->Stereo
[00000621] main private debug: looking for audio filter module: 46 candidates
[00000621] main private debug: using audio filter module "mpgatofixed32"
[00000574] main audio output debug: found a filter for the whole conversion
[00000574] main audio output debug: filter(s) 'fl32'->'fl32' 52800 Hz->48000 Hz Stereo->Stereo
[00000622] main private debug: looking for audio filter module: 46 candidates
[00000622] main private debug: using audio filter module "bandlimited_resampler"
[00000574] main audio output debug: found a filter for the whole conversion
[00000619] main video output debug: got 8 direct buffer(s)
[00000619] main video output debug: picture in 720x576 (0,0,720x576), chroma I420, ar 5:4, sar 1:1
[00000619] main video output debug: picture user 720x576 (0,0,720x576), chroma I420, ar 5:4, sar 1:1
[00000619] main video output debug: picture out 720x576 (0,0,720x576), chroma I420, ar 5:4, sar 1:1
[00000619] main video output debug: direct render, mapping render pictures 0-6 to system pictures 1-7
[00000619] main video output debug: thread 2936687504 (video output) created at priority 0 (video_output/video_output.c:421)
[00000623] main private warning: vout synchro warning: pts != current_date (-167436)
[00000623] main private debug: decoded 103/105 pictures
[00000574] main audio output warning: buffer is 40922 in advance, triggering downsampling
[00000574] main audio output warning: resampling stopped after 16450821 usec (drift: -27558)
[00000619] main video output warning: late picture skipped (94162)
[00000619] main video output warning: late picture skipped (54230)
[00000619] main video output warning: late picture skipped (14496)
[00000619] main video output warning: late picture skipped (34792)
[00000623] main private debug: decoded 104/105 pictures
[00000619] main video output warning: late picture skipped (134919)
[00000619] main video output warning: late picture skipped (94789)
[00000619] main video output warning: late picture skipped (54800)
[00000619] main video output warning: late picture skipped (15012)
[00000619] main video output warning: late picture skipped (5356)
[00000619] main video output warning: late picture skipped (16289)
[00000623] main private debug: decoded 104/105 pictures

Could somebody throw some light on it?

[Pericles]

I am glad to answer myself to close this thread.

This was that simple:

v4l2-ctl --set-ctrl=volume=65500,mute=0

I was using a volume level of 10 or so, which is very low.

So, v4l2 in his latest version is supporting this card very well, it even allows to capture my old VHS recordings at 720x576 instead of 640x576 as it does the windows driver coming with the card.

Congratulations and many thanks to Hans and the rest of developers of v4l2.