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2021-01-15audio: Add braces for statements/fix braces' positionZhang Han
Fix problems about braces: -braces are necessary for all arms of if/for/while statements -else should follow close brace '}' Signed-off-by: Zhang Han <zhanghan64@huawei.com> Message-id: 20210115012431.79533-1-zhanghan64@huawei.com Message-Id: <20210115012431.79533-2-zhanghan64@huawei.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2021-01-15audio: split pcm_ops function get_buffer_inVolker Rümelin
Split off pcm_ops function run_buffer_in from get_buffer_in and call run_buffer_in before get_buffer_in. The next patch only needs the generic buffer management part from audio_generic_get_buffer_in(). Signed-off-by: Volker Rümelin <vr_qemu@t-online.de> Message-id: 9315afe5-5958-c0b4-ea1e-14769511a9d5@t-online.de Message-Id: <20210110100239.27588-8-vr_qemu@t-online.de> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-07-13ossaudio: fix out of bounds writeVolker Rümelin
In function oss_read() a read error currently does not exit the read loop. With no data to read the variable pos will quickly underflow and a subsequent successful read overwrites memory outside the buffer. This patch adds the missing break statement to the error path of the function. To reproduce start qemu with -audiodev oss,id=audio0 and in the guest start audio recording. After some time this will trigger an exception. Fixes: 3ba4066d08 "ossaudio: port to the new audio backend api" Signed-off-by: Volker Rümelin <vr_qemu@t-online.de> Message-id: 20200707180836.5435-1-vr_qemu@t-online.de Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-01-31ossaudio: disable poll mode can't be reachedVolker Rümelin
Currently there is no way to disable poll mode in oss_enable_out and oss_enable_in when it was enabled before. The enable code path always resets the poll mode state variable. Fixes: b027a538c6 "oss: Remove unused error handling of qemu_set_fd_handler" Signed-off-by: Volker Rümelin <vr_qemu@t-online.de> Message-Id: <20200123074943.6699-8-vr_qemu@t-online.de> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-01-31ossaudio: prevent SIGSEGV in oss_enable_outVolker Rümelin
With audiodev parameter out.mixing-engine=off hw->mix_buf is NULL. This patch reverts a small part of dc88e38fa7 "audio: unify input and output mixeng buffer management". To reproduce the problem start qemu with -audiodev oss,id=audio0,try-mmap=on,out.mixing-engine=off Signed-off-by: Volker Rümelin <vr_qemu@t-online.de> Message-Id: <20200123074943.6699-6-vr_qemu@t-online.de> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-01-31audio: fix bug 1858488Volker Rümelin
The combined generic buffer management code and buffer run out code in function audio_generic_put_buffer_out has a problematic behaviour. A few hundred milliseconds after playback starts the mixing buffer and the generic buffer are nearly full and the following pattern can be seen. On first call of audio_pcm_hw_run_out the buffer run code in audio_generic_put_buffer_out writes some data to the audio hardware but the generic buffer will fill faster and is full when audio_pcm_hw_run_out returns. This is because emulated audio devices can produce playback data at a higher rate than the audio backend hardware consumes this data. On next call of audio_pcm_hw_run_out the buffer run code in audio_generic_put_buffer_out writes some data to the audio hardware but no audio data is transferred to the generic buffer because the buffer is already full. Then the pattern repeats. For the emulated audio device this looks like the audio timer period has doubled. This patch splits the combined generic buffer management code and buffer run out code and calls the buffer run out code after buffer management code to break this pattern. The bug report is for the wav audio backend. But the problem is not limited to this backend. All audio backends which use the audio_generic_put_buffer_out function show this problem. Buglink: https://bugs.launchpad.net/qemu/+bug/1858488 Signed-off-by: Volker Rümelin <vr_qemu@t-online.de> Message-Id: <20200123074943.6699-5-vr_qemu@t-online.de> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-01-31audio/oss: fix buffer pos calculationGerd Hoffmann
Fixes: 3ba4066d085f ("ossaudio: port to the new audio backend api") Reported-by: ziming zhang <ezrakiez@gmail.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Message-Id: <20200120101804.29578-1-kraxel@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-10-18audio: replace shift in audio_pcm_info with bytes_per_frameKővágó, Zoltán
The bit shifting trick worked because the number of bytes per frame was always a power-of-two (since QEMU only supports mono, stereo and 8, 16 and 32 bit samples). But if we want to add support for surround sound, this no longer holds true. Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com> Message-id: 1351fd9bcce0ff20d81850c5292722194329de02.1570996490.git.DirtY.iCE.hu@gmail.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-09-23audio: split ctl_* functions into enable_* and volume_*Kővágó, Zoltán
This way we no longer need vararg functions, improving compile time error detection. Also now it's possible to check actually what commands are supported, without needing to manually update ctl_caps. Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com> Message-id: 2b08b3773569c5be055d0a0fb2f29ff64e79f0f4.1568927990.git.DirtY.iCE.hu@gmail.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-09-23audio: unify input and output mixeng buffer managementKővágó, Zoltán
Usage notes: hw->samples became hw->{mix,conv}_buf->size, except before initialization (audio_pcm_hw_alloc_resources_*), hw->samples gives the initial size of the STSampleBuffer. The next commit tries to fix this inconsistency. Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com> Message-id: a78caeb2eeb6348ecb45bb2c81709570ef8ac5b3.1568927990.git.DirtY.iCE.hu@gmail.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-09-23ossaudio: port to the new audio backend apiKővágó, Zoltán
Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com> Message-id: 22ab335146acd8099779583edcf6ed46de836bd6.1568927990.git.DirtY.iCE.hu@gmail.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-08-21audio: use size_t where makes senseKővágó, Zoltán
Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com> Message-id: c5193e687fc6cc0f60cb3e90fe69ddf2027d0df1.1566168923.git.DirtY.iCE.hu@gmail.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-08-21audio: remove read and write pcm_opsKővágó, Zoltán
They just called audio_pcm_sw_read/write anyway, so it makes no sense to have them too. (The noaudio's read is the only exception, but it should work with the generic code too.) Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com> Message-id: 92ddc98133bc4b687c6e4608b9321e7b64c0e496.1566168923.git.DirtY.iCE.hu@gmail.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-08-21audio: do not run each backend in audio_runKővágó, Zoltán
audio_run is called manually by alsa and oss backends when polling. In this case only the requesting backend should be run, not all of them. Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-id: 10221fcea2028fa18d95cf531526ffe3b1d9b21a.1566168923.git.DirtY.iCE.hu@gmail.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-08-21audio: remove audio_MIN, audio_MAXKővágó, Zoltán
There's already a MIN and MAX macro in include/qemu/osdep.h, use them instead. Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-id: 303222477df6f7373217e0df768635fab5855745.1566168923.git.DirtY.iCE.hu@gmail.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-06-12Include qemu/module.h where needed, drop it from qemu-common.hMarkus Armbruster
Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20190523143508.25387-4-armbru@redhat.com> [Rebased with conflicts resolved automatically, except for hw/usb/dev-hub.c hw/misc/exynos4210_rng.c hw/misc/bcm2835_rng.c hw/misc/aspeed_scu.c hw/display/virtio-vga.c hw/arm/stm32f205_soc.c; ui/cocoa.m fixed up]
2019-03-11ossaudio: port to -audiodev configKővágó, Zoltán
Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com> Message-id: 31c899f2f78e40fbc01f563ee4829c98debb68db.1552083282.git.DirtY.iCE.hu@gmail.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-03-11audio: -audiodev command line option basic implementationKővágó, Zoltán
Audio drivers now get an Audiodev * as config paramters, instead of the global audio_option structs. There is some code in audio/audio_legacy.c that converts the old environment variables to audiodev options (this way backends do not have to worry about legacy options). It also contains a replacement of -audio-help, which prints out the equivalent -audiodev based config of the currently specified environment variables. Note that backends are not updated and still rely on environment variables. Also note that (due to moving try-poll from global to backend specific option) currently ALSA and OSS will always try poll mode, regardless of environment variables or -audiodev options. Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com> Message-id: e99a7cbdac0d13512743880660b2032024703e4c.1552083282.git.DirtY.iCE.hu@gmail.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-03-11audio: use qapi AudioFormat instead of audfmt_eKővágó, Zoltán
I had to include an enum for audio sampling formats into qapi, but that meant duplicating the audfmt_e enum. This patch replaces audfmt_e and associated values with the qapi generated AudioFormat enum. This patch is mostly a search-and-replace, except for switches where the qapi generated AUDIO_FORMAT_MAX caused problems. Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Message-id: 01251b2758a1679c66842120b77c0fb46d7d0eaf.1552083282.git.DirtY.iCE.hu@gmail.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2018-03-12audio: add driver registryGerd Hoffmann
Add registry for audio drivers, using the existing audio_driver struct. Make all drivers register themself. The old list of audio_driver struct pointers is now a list of audio driver names, specifying the priority (aka probe order) in case no driver is explicitly asked for. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-id: 20180306074053.22856-2-kraxel@redhat.com
2018-02-06audio: Replace AUDIO_FUNC with __func__Alistair Francis
Apparently we don't use __MSC_VER as a compiler anymore and we always require a C99 compiler (which means we always have __func__) so we don't need a special AUDIO_FUNC macro. We can just replace AUDIO_FUNC with __func__ instead. Checkpatch failures were manually fixed. Signed-off-by: Alistair Francis <alistair.francis@xilinx.com> Cc: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20180203084315.20497-2-armbru@redhat.com>
2016-06-16os-posix: include sys/mman.hPaolo Bonzini
qemu/osdep.h checks whether MAP_ANONYMOUS is defined, but this check is bogus without a previous inclusion of sys/mman.h. Include it in sysemu/os-posix.h and remove it from everywhere else. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-05-18Fix some typos found by codespellStefan Weil
Signed-off-by: Stefan Weil <sw@weilnetz.de> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2016-02-02audio: Clean up includesPeter Maydell
Clean up includes so that osdep.h is included first and headers which it implies are not included manually. This commit was created with scripts/clean-includes. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1453138432-8324-1-git-send-email-peter.maydell@linaro.org Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2015-07-08ossaudio: fix memory leakGonglei
Variable "conf" going out of scope leaks the storage it points to in line 856. Signed-off-by: Gonglei <arei.gonglei@huawei.com> Message-Id: <1435021270-7768-1-git-send-email-arei.gonglei@huawei.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-06-15ossaudio: use trace events instead of debug config flagKővágó, Zoltán
Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2015-06-15ossaudio: do not use global variablesKővágó, Zoltán
Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2015-06-15audio: expose drv_opaque to init_out and init_inKővágó, Zoltán
Currently the opaque pointer returned by audio_driver's init is only exposed to the driver's fini, but not to audio_pcm_ops. This way if someone wants to share a variable with the driver and the pcm, he must use global variables. This patch fixes it by adding a third parameter to audio_pcm_op's init_out and init_in. Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2015-06-12oss: Remove unused error handling of qemu_set_fd_handlerFam Zheng
The function cannot fail, so the check is superfluous. Signed-off-by: Fam Zheng <famz@redhat.com> Message-id: 1433400324-7358-11-git-send-email-famz@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-06-13audio: Drop superfluous conditionals around g_free()Markus Armbruster
Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-11-07ossaudio: check for oss support in oss_audio_initGerd Hoffmann
Check whenever the device path (/dev/dsp by default) exists and qemu is allowed to access it. Return NULL if it isn't, so ossaudio will not be used on systems wihtout oss support (increasinly common on modern linux systems). Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-11-07Revert "ossaudio: do not enable by default"Gerd Hoffmann
This reverts commit c905c5012ac0c6fde3b8094d2206a3139deddba2. There is a better fix for the issue at hand. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-11-05ossaudio: do not enable by defaultAnthony Liguori
Modern Linux's no longer support /dev/dsp so enabling it by default causes audio failures on newer Linux distros. Signed-off-by: Anthony Liguori <aliguori@amazon.com> Tested-by: Andreas Färber <afaerber@suse.de> Message-id: 1383497154-9271-1-git-send-email-aliguori@amazon.com
2013-05-26Remove OSS support for OpenBSDBrad Smith
Remove the OSS support for OpenBSD. The OSS API has not been usable for quite some time. Signed-off-by: Brad Smith <brad@comstyle.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-12-19misc: move include files to include/qemu/Paolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-12-19janitor: do not include qemu-char everywherePaolo Bonzini
Touching char/char.h basically causes the whole of QEMU to be rebuilt. Avoid this, it is usually unnecessary. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-12-19janitor: do not rely on indirect inclusions of or from qemu-char.hPaolo Bonzini
Various header files rely on qemu-char.h including qemu-config.h or main-loop.h, but they really do not need qemu-char.h at all (particularly interesting is the case of the block layer!). Clean this up, and also add missing inclusions of qemu-char.h itself. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2011-08-20Use glib memory allocation and free functionsAnthony Liguori
qemu_malloc/qemu_free no longer exist after this commit. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-01-12audio: split sample conversion and volume mixingMichael Walle
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 <michael@walle.cc> Signed-off-by: malc <av1474@comtv.ru>
2011-01-09ossaudio: add endianness support for VoiceInMichael Walle
Signed-off-by: Michael Walle <michael@walle.cc> Signed-off-by: malc <av1474@comtv.ru>
2010-01-13Workaround for broken OSS_GETVERSION on FreeBSD, part twoJuergen Lock
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 returns the errno it does currently on FreeBSD. (Rev 2 after private discussion with malc.) Signed-off-by: Juergen Lock <nox@jelal.kn-bremen.de> Signed-off-by: malc <av1474@comtv.ru>
2010-01-09oss: fix fragment settingmalc
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 <av1474@comtv.ru>
2010-01-09oss: issue OSS_GETVERSION ioctl only when neededmalc
Signed-off-by: malc <av1474@comtv.ru>
2010-01-09oss: refactor code around policy settingmalc
This fixes a problem with a previous patch spotted by Juergen Lock, thanks to him again. Signed-off-by: malc <av1474@comtv.ru>
2010-01-08oss: workaround for cases when OSS_GETVERSION is not definedmalc
Thanks to Juergen Lock. Signed-off-by: malc <av1474@comtv.ru>
2009-10-03oss/alsa: Do not invoke UB described in 7.15.1.1 (this time for ADC)malc
Signed-off-by: malc <av1474@comtv.ru>
2009-10-02oss/alsa: Do not invoke UB described in 7.15.1.1malc
Additional argument (whether to try poll mode) is only passed with VOICE_ENABLE command. Thanks to Markus Armbruster for noticing the potential breakage.
2009-09-18audio: use correct email addressmalc
Signed-off-by: malc <av1474@comtv.ru>
2009-09-18audio: internal API changemalc
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. Signed-off-by: malc <av1474@comtv.ru>
2009-09-18oss: use audio_pcm_hw_clip_outmalc
Signed-off-by: malc <av1474@comtv.ru>
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