VLC using SAA7134/SAA7135HL Pinnacle TV capture card

[AdrianBan]

Hi all,

I know this kind of issue was previous discuss but in my situation all documents and tutorial form internet and on this forum didn't worked.

The problem is that I can't capture the sound which this capture card is sends it via his ADC with VLC. I got in my linux box this:

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04:01.0 Multimedia controller: Philips Semiconductors SAA7134/SAA7135HL Video Broadcast Decoder (rev 01) Subsystem: Pinnacle Systems Inc. PCTV Stereo Flags: bus master, medium devsel, latency 32, IRQ 19 Memory at fd9ff000 (32-bit, non-prefetchable) [size=1K] Capabilities: [40] Power Management version 1 Kernel driver in use: saa7134

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# ls -l /dev/snd/ total 0 drwxr-xr-x 2 root root 80 Feb 16 12:15 by-path crw-rw----+ 1 root audio 116, 7 Feb 16 12:15 controlC0 crw-rw----+ 1 root audio 116, 9 Feb 16 12:15 controlC1 crw-rw----+ 1 root audio 116, 6 Feb 16 12:15 hwC0D2 crw-rw----+ 1 root audio 116, 5 Feb 16 12:16 pcmC0D0c crw-rw----+ 1 root audio 116, 4 Feb 16 13:23 pcmC0D0p crw-rw----+ 1 root audio 116, 3 Feb 16 12:16 pcmC0D1p crw-rw----+ 1 root audio 116, 2 Feb 16 12:15 pcmC0D2c crw-rw----+ 1 root audio 116, 8 Feb 16 13:21 pcmC1D0c crw-rw----+ 1 root audio 116, 1 Feb 16 12:15 seq crw-rw----+ 1 root audio 116, 33 Feb 16 12:15 timer

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$ cat /proc/asound/pcm 00-00: ALC883 Analog : ALC883 Analog : playback 1 : capture 1 00-01: ALC883 Digital : ALC883 Digital : playback 1 00-02: ALC883 Alt Analog : ALC883 Alt Analog : capture 1 01-00: SAA7134 PCM : SAA7134 PCM : capture 1

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$ cat /proc/asound/devices 1: : sequencer 2: [ 0- 2]: digital audio capture 3: [ 0- 1]: digital audio playback 4: [ 0- 0]: digital audio playback 5: [ 0- 0]: digital audio capture 6: [ 0- 2]: hardware dependent 7: [ 0] : control 8: [ 1- 0]: digital audio capture 9: [ 1] : control 33: : timer

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$ cat /proc/asound/cards 0 [Intel ]: HDA-Intel - HDA Intel HDA Intel at 0xfdff8000 irq 46 1 [SAA7134 ]: SAA7134 - SAA7134 saa7134[0] at 0xfd9ff000 irq 19 $ cat /proc/asound/hwdep 00-02: HDA Codec 2 $ cat /proc/asound/modules 0 snd_hda_intel 1 saa7134_alsa

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# arecord -L null Discard all samples (playback) or generate zero samples (capture) pulse PulseAudio Sound Server default:CARD=Intel HDA Intel, ALC883 Analog Default Audio Device sysdefault:CARD=Intel HDA Intel, ALC883 Analog Default Audio Device front:CARD=Intel,DEV=0 HDA Intel, ALC883 Analog Front speakers surround40:CARD=Intel,DEV=0 HDA Intel, ALC883 Analog 4.0 Surround output to Front and Rear speakers surround41:CARD=Intel,DEV=0 HDA Intel, ALC883 Analog 4.1 Surround output to Front, Rear and Subwoofer speakers surround50:CARD=Intel,DEV=0 HDA Intel, ALC883 Analog 5.0 Surround output to Front, Center and Rear speakers surround51:CARD=Intel,DEV=0 HDA Intel, ALC883 Analog 5.1 Surround output to Front, Center, Rear and Subwoofer speakers surround71:CARD=Intel,DEV=0 HDA Intel, ALC883 Analog 7.1 Surround output to Front, Center, Side, Rear and Woofer speakers default:CARD=SAA7134 SAA7134, SAA7134 PCM Default Audio Device sysdefault:CARD=SAA7134 SAA7134, SAA7134 PCM Default Audio Device

So far so good. arecord can capture the sound directly from my capture card using this command: arecord --dump-hw-params -D "sysdefault:CARD=SAA7134" -c 2 -r 44100 -V stereo MyAudio.wav

$ ./capture-audio-with-arecord
Recording WAVE 'MyAudio.wav' : Unsigned 8 bit, Rate 44100 Hz, Stereo
HW Params of device "sysdefault:CARD=SAA7134":
--------------------
ACCESS: MMAP_INTERLEAVED MMAP_NONINTERLEAVED MMAP_COMPLEX RW_INTERLEAVED RW_NONINTERLEAVED
FORMAT: S8 U8 S16_LE S16_BE U16_LE U16_BE S24_LE S24_BE U24_LE U24_BE S32_LE S32_BE U32_LE U32_BE FLOAT_LE FLOAT_BE FLOAT64_LE FLOAT64_BE MU_LAW A_LAW IMA_ADPCM S24_3LE S24_3BE U24_3LE U24_3BE S20_3LE S20_3BE U20_3LE U20_3BE S18_3LE S18_3BE U18_3LE U18_3BE
SUBFORMAT: STD
SAMPLE_BITS: [4 64]
FRAME_BITS: [4 640000]
CHANNELS: [1 10000]
RATE: [4000 4294967295]
PERIOD_TIME: [500 2048000]
PERIOD_SIZE: [2 4294967295]
PERIOD_BYTES: [1 4294967295]
PERIODS: (0 2147483647]
BUFFER_TIME: [1 4294967295]
BUFFER_SIZE: [8 4294967294]
BUFFER_BYTES: [4 4294967295]
TICK_TIME: ALL
--------------------
+ ### 18%|18%### +

But when I'm trying to capture in VLC video and sound I can't do it. I got only video without sound. I tried to specify adev in v4l2 but no success:

vlc -vvv v4l2:///dev/video0:input=0:standard=0:chroma="YUYV":tuner-audio-mode=-1:audio-input=0:audio-method=2:samplerate=44100:adev="alsa:///dev/snd/pcmC1D0c" :live-caching=300

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[0x9b5e6b0] main demux error: unsafe option "v4l2-audio-method" has been ignored for security reasons [0x9b5e6b0] main demux error: unsafe option "v4l2-samplerate" has been ignored for security reasons [0x9b5e6b0] main demux error: unsafe option "v4l2-adev" has been ignored for security reasons

Using :input-slave is totally useless. This kind of parameter asks me for ALSA HW device, device I don't have it on this device. I got only a PCM capture device. HW device like you can see is 00-02: HDA Codec 2 which is the onboad Intel sound card.

What are the alternatives to capture the sound directly from capture card?

Best regards,
Adrian

[Rémi Denis-Courmont]

v4l2-adev and friends have been deprecated in ages. You MUST use input-slave.