Saa7134-alsa - Revision history

CityK: /* Record with mencoder */ punctuation

2013-01-04T01:38:47Z

Record with mencoder: punctuation

← Older revision		Revision as of 01:38, 4 January 2013
Line 172:		Line 172:
	=== Record with mencoder ===		=== Record with mencoder ===

-	It may be simpler to get sound during recording than during playback. The example given below, in which "$DEV" is the number of the device node is known to produce good sound:	+	It may be simpler to get sound during recording than during playback. The example given below, in which "$DEV" is the number of the device node, is known to produce good sound:

	mencoder -tv driver=v4l2:device=/dev/video$DEV:fps=30000/1001:chanlist=us-bcast:\		mencoder -tv driver=v4l2:device=/dev/video$DEV:fps=30000/1001:chanlist=us-bcast:\

CityK: /* Using with Mplayer, Mencoder with Gentoo default Pulseaudio and Alsa config */ Remove first person

2013-01-04T01:35:24Z

Using with Mplayer, Mencoder with Gentoo default Pulseaudio and Alsa config: Remove first person

← Older revision		Revision as of 01:35, 4 January 2013
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	=== Using with Mplayer, Mencoder with Gentoo default Pulseaudio and Alsa config ===		=== Using with Mplayer, Mencoder with Gentoo default Pulseaudio and Alsa config ===

-	If you are using default SAA7134 Pulseaudio settings (Analog Stero Input with the video channel being captured) ~~as I do~~, ~~this is my~~ line ~~(Note, these lines are~~ for composite capture) :	+	If you are using default SAA7134 Pulseaudio settings (Analog Stero Input with the video channel being captured), then you can try command line for composite signal capture:
	mplayer -tv driver=v4l2:device=/dev/video1:audiorate=32000:alsa:adevice=hw.1:immediatemode=0:input=1:amode=1:normid=7:width=720:height=576 -ao alsa -aspect 16:9 tv://		mplayer -tv driver=v4l2:device=/dev/video1:audiorate=32000:alsa:adevice=hw.1:immediatemode=0:input=1:amode=1:normid=7:width=720:height=576 -ao alsa -aspect 16:9 tv://
-	Note~~, Before figuring out this~~ line above~~, I had previously tried~~ arecord and aplay as per the example below (arecord -D hw:1,0 -r 32000 -c 2 -f S16_LE \| aplay -) ~~and that didn't~~ work as well as ~~I had~~ expected.	+	Note: the line above may work in place of trying with arecord and aplay, as per the example below (arecord -D hw:1,0 -r 32000 -c 2 -f S16_LE \| aplay -), which may not work as well as expected.


-	For Mencoder ~~I use this~~ line:	+	For Mencoder, the following command line can be used:
	mencoder -tv driver=v4l2:device=/dev/video1:audiorate=32000:alsa:adevice=hw.1:input=1:amode=1:normid=7:width=720:height=576 -o filename.mpg -ovc lavc -oac copy -lavcopts vcodec=mpeg2video:vbitrate=1000:\		mencoder -tv driver=v4l2:device=/dev/video1:audiorate=32000:alsa:adevice=hw.1:input=1:amode=1:normid=7:width=720:height=576 -o filename.mpg -ovc lavc -oac copy -lavcopts vcodec=mpeg2video:vbitrate=1000:\
	keyint=5:aspect=16/9 -vf harddup -endpos 00:00:00 tv://		keyint=5:aspect=16/9 -vf harddup -endpos 00:00:00 tv://
-	~~I have recorded~~ a good few gigabytes ~~with this line~~ from my Virginmedia V+HD box	+	This line has been successfully tested, recording a good few gigabytes, from a Virginmedia V+HD box.

	These lines were created with the help of this very page and the Mplayer/Mencoder manual.		These lines were created with the help of this very page and the Mplayer/Mencoder manual.

CityK: /* Record with mencoder */ remove first persno

2013-01-04T01:28:42Z

Record with mencoder: remove first persno

← Older revision		Revision as of 01:28, 4 January 2013
Line 172:		Line 172:
	=== Record with mencoder ===		=== Record with mencoder ===

-	It may be simpler to get sound during recording than during playback. ~~I get good sound using this~~, ~~where~~ $DEV is the number of the device node:	+	It may be simpler to get sound during recording than during playback. The example given below, in which "$DEV" is the number of the device node is known to produce good sound:

	mencoder -tv driver=v4l2:device=/dev/video$DEV:fps=30000/1001:chanlist=us-bcast:\		mencoder -tv driver=v4l2:device=/dev/video$DEV:fps=30000/1001:chanlist=us-bcast:\
Line 184:		Line 184:

	Because so many applications still appear to have difficulties accessing ALSA's odd device enumeration, the OSS module for DMA sound continues to be useful. You can also use ALSA's OSS emulation with saa7134-alsa to get /dev/dspX devices for OSS-aware applications.		Because so many applications still appear to have difficulties accessing ALSA's odd device enumeration, the OSS module for DMA sound continues to be useful. You can also use ALSA's OSS emulation with saa7134-alsa to get /dev/dspX devices for OSS-aware applications.
-

	=== Using with Mplayer, Mencoder with Gentoo default Pulseaudio and Alsa config ===		=== Using with Mplayer, Mencoder with Gentoo default Pulseaudio and Alsa config ===

Lysandertheone: /* Using with Mplayer, Mencoder with Gentoo default Pulseaudio and Alsa config */

2012-12-31T18:36:41Z

Using with Mplayer, Mencoder with Gentoo default Pulseaudio and Alsa config

← Older revision		Revision as of 18:36, 31 December 2012
Line 191:		Line 191:
	mplayer -tv driver=v4l2:device=/dev/video1:audiorate=32000:alsa:adevice=hw.1:immediatemode=0:input=1:amode=1:normid=7:width=720:height=576 -ao alsa -aspect 16:9 tv://		mplayer -tv driver=v4l2:device=/dev/video1:audiorate=32000:alsa:adevice=hw.1:immediatemode=0:input=1:amode=1:normid=7:width=720:height=576 -ao alsa -aspect 16:9 tv://
	Note, Before figuring out this line above, I had previously tried arecord and aplay as per the example below (arecord -D hw:1,0 -r 32000 -c 2 -f S16_LE \| aplay -) and that didn't work as well as I had expected.		Note, Before figuring out this line above, I had previously tried arecord and aplay as per the example below (arecord -D hw:1,0 -r 32000 -c 2 -f S16_LE \| aplay -) and that didn't work as well as I had expected.
-
-	Additional Note, After Further Testing today (31/12/12),I have noticed that my line above causes audio sync issues, probably due to the capture audio rate been set to high in comparison to the SAA7134 default audio rate of 32000 and Mplayers default output audio rate of 32000, so this is a correction edit that applies to both lines.

Lysandertheone: /* Using with Mplayer, Mencoder with Gentoo default Pulseaudio and Alsa config */

2012-12-31T16:28:12Z

Using with Mplayer, Mencoder with Gentoo default Pulseaudio and Alsa config

← Older revision		Revision as of 16:28, 31 December 2012
Line 189:		Line 189:

	If you are using default SAA7134 Pulseaudio settings (Analog Stero Input with the video channel being captured) as I do, this is my line (Note, these lines are for composite capture) :		If you are using default SAA7134 Pulseaudio settings (Analog Stero Input with the video channel being captured) as I do, this is my line (Note, these lines are for composite capture) :
-	mplayer -tv driver=v4l2:device=/dev/video1:audiorate=~~48000~~:alsa:adevice=hw.1:immediatemode=0:input=1:amode=1:normid=7:width=720:height=576 -ao alsa -aspect 16:9 tv://	+	mplayer -tv driver=v4l2:device=/dev/video1:audiorate=32000:alsa:adevice=hw.1:immediatemode=0:input=1:amode=1:normid=7:width=720:height=576 -ao alsa -aspect 16:9 tv://
	Note, Before figuring out this line above, I had previously tried arecord and aplay as per the example below (arecord -D hw:1,0 -r 32000 -c 2 -f S16_LE \| aplay -) and that didn't work as well as I had expected.		Note, Before figuring out this line above, I had previously tried arecord and aplay as per the example below (arecord -D hw:1,0 -r 32000 -c 2 -f S16_LE \| aplay -) and that didn't work as well as I had expected.
		+
		+	Additional Note, After Further Testing today (31/12/12),I have noticed that my line above causes audio sync issues, probably due to the capture audio rate been set to high in comparison to the SAA7134 default audio rate of 32000 and Mplayers default output audio rate of 32000, so this is a correction edit that applies to both lines.
		+

	For Mencoder I use this line:		For Mencoder I use this line:
-	mencoder -tv driver=v4l2:device=/dev/video1:audiorate=~~48000~~:alsa:adevice=hw.1:input=1:amode=1:normid=7:width=720:height=576 -o filename.mpg -ovc lavc -oac copy -lavcopts vcodec=mpeg2video:vbitrate=1000:\	+	mencoder -tv driver=v4l2:device=/dev/video1:audiorate=32000:alsa:adevice=hw.1:input=1:amode=1:normid=7:width=720:height=576 -o filename.mpg -ovc lavc -oac copy -lavcopts vcodec=mpeg2video:vbitrate=1000:\
	keyint=5:aspect=16/9 -vf harddup -endpos 00:00:00 tv://		keyint=5:aspect=16/9 -vf harddup -endpos 00:00:00 tv://
	I have recorded a good few gigabytes with this line from my Virginmedia V+HD box		I have recorded a good few gigabytes with this line from my Virginmedia V+HD box

Lysandertheone: Using SAA7134 with Mplayer and Mecoder with default gentoo Pulseaudio/Alsa config

2012-12-31T04:56:30Z

Using SAA7134 with Mplayer and Mecoder with default gentoo Pulseaudio/Alsa config

← Older revision		Revision as of 04:56, 31 December 2012
Line 184:		Line 184:

	Because so many applications still appear to have difficulties accessing ALSA's odd device enumeration, the OSS module for DMA sound continues to be useful. You can also use ALSA's OSS emulation with saa7134-alsa to get /dev/dspX devices for OSS-aware applications.		Because so many applications still appear to have difficulties accessing ALSA's odd device enumeration, the OSS module for DMA sound continues to be useful. You can also use ALSA's OSS emulation with saa7134-alsa to get /dev/dspX devices for OSS-aware applications.
		+
		+
		+	=== Using with Mplayer, Mencoder with Gentoo default Pulseaudio and Alsa config ===
		+
		+	If you are using default SAA7134 Pulseaudio settings (Analog Stero Input with the video channel being captured) as I do, this is my line (Note, these lines are for composite capture) :
		+	mplayer -tv driver=v4l2:device=/dev/video1:audiorate=48000:alsa:adevice=hw.1:immediatemode=0:input=1:amode=1:normid=7:width=720:height=576 -ao alsa -aspect 16:9 tv://
		+	Note, Before figuring out this line above, I had previously tried arecord and aplay as per the example below (arecord -D hw:1,0 -r 32000 -c 2 -f S16_LE \| aplay -) and that didn't work as well as I had expected.
		+
		+	For Mencoder I use this line:
		+	mencoder -tv driver=v4l2:device=/dev/video1:audiorate=48000:alsa:adevice=hw.1:input=1:amode=1:normid=7:width=720:height=576 -o filename.mpg -ovc lavc -oac copy -lavcopts vcodec=mpeg2video:vbitrate=1000:\
		+	keyint=5:aspect=16/9 -vf harddup -endpos 00:00:00 tv://
		+	I have recorded a good few gigabytes with this line from my Virginmedia V+HD box
		+
		+	These lines were created with the help of this very page and the Mplayer/Mencoder manual.

	=== ALSA audio with other applications ===		=== ALSA audio with other applications ===

Skiskibo at 22:09, 20 December 2010

2010-12-20T22:09:55Z

← Older revision		Revision as of 22:09, 20 December 2010
Line 240:		Line 240:

	* Then, the following command		* Then, the following command
-	$ LANG=C pactl list \| grep -A2 'Source #' \| grep 'Name: ' \| cut -d" " -f	+	$ LANG=C pactl list \| grep -A2 'Source #' \| grep 'Name: ' \| cut -d" " -f 2
	will list all source detected by Pulseaudio.		will list all source detected by Pulseaudio.

Zebob: /* Sound distorted and high-pitched */

2010-01-20T16:20:20Z

Sound distorted and high-pitched

← Older revision		Revision as of 16:20, 20 January 2010
Line 260:		Line 260:
	=== Sound distorted and high-pitched ===		=== Sound distorted and high-pitched ===

-	* On some card, the sound is distorted, high-pitched as if it is accelerated. Some program will output buffer underrun in the terminal	+	* On some card, the sound is distorted, high-pitched as if it is accelerated. Some program will output buffer underrun in the terminal. Fixed for newer kernel: http://git.alsa-project.org/?p=alsa-kernel.git;a=commit;h=7b54360293c9d72b54e462d146c9376287d2f71b
	* To correct this problem we need to change the autodetected sampling rate of the TV card from to 32000Hz.		* To correct this problem we need to change the autodetected sampling rate of the TV card from to 32000Hz.
	* First we search for the current card parameters. Type :		* First we search for the current card parameters. Type :

Zebob: /* Howto use Saa7134-alsa with Pulseaudio based-system */

2010-01-20T15:58:23Z

Howto use Saa7134-alsa with Pulseaudio based-system

← Older revision		Revision as of 15:58, 20 January 2010
Line 240:		Line 240:

	* Then, the following command		* Then, the following command
-	$ pactl list \| grep ~~alsa_input~~	+	$ LANG=C pactl list \| grep -A2 'Source #' \| grep 'Name: ' \| cut -d" " -f
	will list all source detected by Pulseaudio.		will list all source detected by Pulseaudio.

	For example, on my computer:		For example, on my computer:
-	~~Name:~~ alsa_input.~~hw_2_0~~	+	alsa_input.pci-0000_04_08.0.analog-stereo
-	~~Name: alsa_input~~.pci-0000_00_10.1.analog-stereo	+	alsa_output.pci-0000_00_10.1.analog-stereo.monitor
-	~~Name:~~ alsa_input.pci-~~0000_04_08~~.0.analog-stereo	+	alsa_input.pci-0000_00_10.1.analog-stereo

	The source name to use is '''the one with the right PCI address'''. Here the third one: alsa_input.pci-0000_'''04_08.0'''.analog-stereo		The source name to use is '''the one with the right PCI address'''. Here the third one: alsa_input.pci-0000_'''04_08.0'''.analog-stereo

Zebob: /* Sound distorted and high-pitched */

2010-01-20T12:52:26Z

Sound distorted and high-pitched

← Older revision		Revision as of 12:52, 20 January 2010
Line 265:		Line 265:
	$ pactl list \| grep device_id		$ pactl list \| grep device_id
	It will output sound card argument detected by udev :		It will output sound card argument detected by udev :
-	Argument: device_id="2" name="pci-0000_'''04_08'''.0" card_name="alsa_card.pci-0000_04_08.0" tsched=yes ignore_dB=no card_properties="module-udev-detect.discovered=1"	+	Argument: device_id="2" name="pci-0000_'''04_08.0'''" card_name="alsa_card.pci-0000_04_08.0" tsched=yes ignore_dB=no card_properties="module-udev-detect.discovered=1"
	Argument: device_id="0" name="pci-0000_00_10.1" card_name="alsa_card.pci-0000_00_10.1" tsched=yes ignore_dB=no card_properties="module-udev-detect.discovered=1"		Argument: device_id="0" name="pci-0000_00_10.1" card_name="alsa_card.pci-0000_00_10.1" tsched=yes ignore_dB=no card_properties="module-udev-detect.discovered=1"