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# Date Author Comment
00e07679 01/12/2011 05:36 pm Michael Walle

audio: split sample conversion and volume mixing

Refactor the volume mixing, so it can be reused for capturing devices.
Additionally, it removes superfluous multiplications with the nominal
volume within the hardware voice code path.

Signed-off-by: Michael Walle <>...
b6c9c940 01/09/2011 02:05 am Michael Walle

ossaudio: add endianness support for VoiceIn

Signed-off-by: Michael Walle <>
Signed-off-by: malc <>
72ff25e4 01/13/2010 12:59 am Juergen Lock

Workaround for broken OSS_GETVERSION on FreeBSD, part two

Turns out on those versions of FreeBSD (>= 7.x) that know OSS_GETVERSION
the ioctl doesn't actually work yet (except in the Linuxolator), so if
building on FreeBSD assume the sound drivers are new enough if the ioctl...
3d709fe7 01/09/2010 05:07 pm malc

oss: fix fragment setting

Previous patch introduced subtle regression, in cases when
OSS_GETVERSION fails the code wasn't falling back to
SNDCTL_DSP_SETFRAGMENT.

Signed-off-by: malc <>
6d246526 01/09/2010 04:55 pm malc

oss: issue OSS_GETVERSION ioctl only when needed

Signed-off-by: malc <>
78d9356d 01/08/2010 11:28 pm malc

oss: refactor code around policy setting

This fixes a problem with a previous patch spotted by Juergen Lock,
thanks to him again.

Signed-off-by: malc <>
e726fe7d 01/08/2010 10:26 am malc

oss: workaround for cases when OSS_GETVERSION is not defined

Thanks to Juergen Lock.

Signed-off-by: malc <>
a628b869 10/03/2009 02:30 am malc

oss/alsa: Do not invoke UB described in 7.15.1.1 (this time for ADC)

Signed-off-by: malc <>
301901b5 10/02/2009 01:37 am malc

oss/alsa: Do not invoke UB described in 7.15.1.1

Additional argument (whether to try poll mode) is only passed with
VOICE_ENABLE command.

Thanks to Markus Armbruster for noticing the potential breakage.
9d168976 09/18/2009 01:04 pm malc

oss: use audio_pcm_hw_clip_out

Signed-off-by: malc <>
bdff253c 09/18/2009 01:04 pm malc

audio: internal API change

pcm_ops.run_out now takes number of live samples (which will be always
greater than zero) as a second argument, every driver was calling
audio_pcm_hw_get_live_out anyway with exception of fmod which used
audio_pcm_hw_get_live_out2 for no good reason....
155a8ad3 09/18/2009 01:04 pm malc

audio: use correct email address

Signed-off-by: malc <>
6ebfda13 09/14/2009 02:55 am malc

alsa/oss: Remove fd transfer handlers before closing oss/alsa fd/handle

Signed-off-by: malc <>
0b3652bc 09/13/2009 10:15 am malc

oss: OSS v4 support

a. Use SNDCTL_DSP_POLICY instead of SNDCTL_DSP_SETFRAGMENT
b. Add ability to open device in exclusive mode, thus bypassing vmix

Signed-off-by: malc <>
54762b73 09/13/2009 10:15 am malc

oss: Simplify mmap code

Signed-off-by: malc <>
2182349d 09/12/2009 01:50 am malc

oss: Unbreak mmaping the ability to mmap oss fd on Linux

Signed-off-by: malc <>
dd8a5649 09/12/2009 01:50 am malc

oss: poll mode handling

Signed-off-by: malc <>
057fa65c 09/12/2009 01:50 am malc

audio: remove lsbindex/popcount in favour of host-utils's ctz32

Signed-off-by: malc <>
1dd3e4d1 08/11/2009 07:51 pm Juan Quintela

use C99 initializers for audio_pcm_ops

Signed-off-by: Juan Quintela <>
1a40d5e2 08/11/2009 07:51 pm Juan Quintela

use C99 initializers for all audio/*

Signed-off-by: Juan Quintela <>
98f9f48c 08/11/2009 07:51 pm malc

Aesthetics

Reformat to make item borders more visible
Fix cases of stray tabs and vertical misalignments

Signed-off-by: malc <>
bee37f32 08/11/2009 07:51 pm Juan Quintela

Use proper struct initializers and remove INIT_FIELD() macro

Signed-off-by: Juan Quintela <>
2700efa3 08/11/2009 07:51 pm Juan Quintela

Use C99 initializers for audio_option

Signed-off-by: Juan Quintela <>
660f11be 08/01/2009 12:16 am Blue Swirl

Fix Sparse warnings: "Using plain integer as NULL pointer"

Signed-off-by: Blue Swirl <>
1ea879e5 12/04/2008 12:48 am malc

Make audio violate POSIX less

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5864 c046a42c-6fe2-441c-8c8c-71466251a162
35f4b58c 10/06/2008 09:08 pm blueswir1

Prepare for changing audio_pcm_ops dynamically (partially revert r5422)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5435 c046a42c-6fe2-441c-8c8c-71466251a162
8869defe 10/05/2008 01:01 pm blueswir1

Make audio_pcm_opsstatic const

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5422 c046a42c-6fe2-441c-8c8c-71466251a162
902e2b51 07/02/2008 09:03 pm malc

Add NULL argument to SNDCTL_DSP_NONBLOCK ioctl call

Comes from here:
http://cvsweb.netbsd.org/bsdweb.cgi/pkgsrc/emulators/qemu/patches/patch-am?rev=1.2&content-type=text/x-cvsweb-markup

http://manuals.opensound.com/developer/SNDCTL_DSP_NONBLOCK.html
No explanation for NULL given....
29ddf27b 06/08/2008 07:27 am malc

Check the returned audio_buf_info fields

At least on one system zero is returned in either fragsize or
fragstotal (reported by Dave Scott), this results in an audio_calloc
failing the audio_bug check and another ominous error message. Fail
early and blame the system....
ca9cc28c 01/14/2008 06:24 am balrog

pthreads-based audio and miscellaneous audio clean-up (malc).
ESD support (malc, Frederick Reeve).

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3917 c046a42c-6fe2-441c-8c8c-71466251a162
87ecb68b 11/17/2007 07:14 pm pbrook

Break up vl.h.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3674 c046a42c-6fe2-441c-8c8c-71466251a162
f0c757e4 04/02/2007 01:07 pm ths

audio/ossaudio.c for OpenBSD, by Todd T. Fries.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2583 c046a42c-6fe2-441c-8c8c-71466251a162
d929eba5 07/05/2006 12:47 am bellard

audio endianness API changes (malc)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2042 c046a42c-6fe2-441c-8c8c-71466251a162
8ead62cf 07/04/2006 07:51 pm bellard

audio fixes + initial audio capture support (malc)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2040 c046a42c-6fe2-441c-8c8c-71466251a162
571ec3d6 11/20/2005 06:24 pm bellard

audio merge (malc)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1636 c046a42c-6fe2-441c-8c8c-71466251a162
b41cffbe 11/11/2005 02:02 am bellard

debug msg (malc)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1615 c046a42c-6fe2-441c-8c8c-71466251a162
c0fe3827 11/05/2005 08:55 pm bellard

audio merge (malc)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1601 c046a42c-6fe2-441c-8c8c-71466251a162
1d14ffa9 10/30/2005 08:58 pm bellard

merged 15a_aqemu.patch audio patch (malc)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1584 c046a42c-6fe2-441c-8c8c-71466251a162
95293972 07/24/2005 12:05 pm bellard

open OSS audio device as write only (malc)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1524 c046a42c-6fe2-441c-8c8c-71466251a162
44a095a7 11/14/2004 06:02 pm bellard

mmap audio fix (malc)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1138 c046a42c-6fe2-441c-8c8c-71466251a162
7372f88d 11/11/2004 06:55 pm bellard

audio fixes (malc)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1133 c046a42c-6fe2-441c-8c8c-71466251a162
fb065187 11/10/2004 01:09 am bellard

audio clean up (initial patch by malc)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1131 c046a42c-6fe2-441c-8c8c-71466251a162
85571bc7 11/07/2004 08:04 pm bellard

audio merge (malc)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1125 c046a42c-6fe2-441c-8c8c-71466251a162