aboutsummaryrefslogtreecommitdiff
path: root/audio/audio_int.h
AgeCommit message (Collapse)Author
2020-02-06audio: proper support for float samples in mixengKővágó, Zoltán
This adds proper support for float samples in mixeng by adding a new audio format for it. Limitations: only native endianness is supported. None of the virtual sound cards support float samples (it looks like most of them only support 8 and 16 bit, only hda supports 32 bit), it is only used for the audio backends (i.e. host side). Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com> Acked-by: Markus Armbruster <armbru@redhat.com> Message-id: 8a8b0b5698401b78d3c4c8ec90aef83b95babb06.1580672076.git.DirtY.iCE.hu@gmail.com 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>
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>
2019-10-18audio: support more than two channels in volume settingKővágó, Zoltán
Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com> Message-id: 5d3dd2ee3baaa62805e79c3901abb7415ae32461.1570996490.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: common rate control code for timer based outputsKővágó, Zoltán
This commit removes the ad-hoc rate-limiting code from noaudio and wavaudio, and replaces them with a (slightly modified) code from spiceaudio. This way multiple write calls (for example when the circular buffer wraps around) do not cause problems. Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com> Message-id: fd0fe5b95b13fa26d09ae77a72f99d0ea411de14.1568927990.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>
2019-09-23audio: remove remains of the old backend apiKővágó, Zoltán
Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com> Message-id: 497decab6d0f0fb9529bea63ec7ce0bd7b553038.1568927990.git.DirtY.iCE.hu@gmail.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-09-23audio: api for mixeng code free backendsKővágó, Zoltán
This will make it possible to skip mixeng with audio playback and recording, allowing us to free ourselves from the limitations of the current mixeng (stereo, int64 samples only). In this case, HW and SW voices will be essentially the same, for every SW voice we will create a HW voice, since we can no longer mix multiple voices together. Some backends expect us to call a function when we have data ready write()/read() style, while others provide a buffer and expects us to directly write/read it, so for optimal performance audio_pcm_ops provide methods for both cases. Previously backends asked mixeng for more data in run_out/run_it, now instead mixeng or the frontends will call the backends, so that's why two sets of functions required. audio.c contains glue code between the two styles, so backends only ever have to implement one style and frontends are free to call whichever is more convenient for them. Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com> Message-id: 15a33c03a62228922d851f7324c52f73cb8d2414.1568927990.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: basic support for multi backend audioKővágó, Zoltán
Audio functions no longer access glob_audio_state, instead they get an AudioState as a parameter. This is required in order to support multiple backends. glob_audio_state is also gone, and replaced with a tailq so we can store more than one states. Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com> Message-id: 67aef54f9e729a7160fe95c465351115e392164b.1566168923.git.DirtY.iCE.hu@gmail.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-08-21audio: reduce glob_audio_state usageKővágó, Zoltán
Remove glob_audio_state from functions, where possible without breaking the API. This means that most static functions in audio.c now take an AudioState pointer instead of implicitly using glob_audio_state. Also included a pointer in SWVoice*, HWVoice* structs, so that functions dealing them can know the audio state without having to pass it around separately. This is required in order to support multiple simultaneous audio backends (added in a later commit). Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-id: b5e241f24e795267b145bcde7c6a72dd5e6037ea.1566168923.git.DirtY.iCE.hu@gmail.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-03-11audio: -audiodev command line option: cleanupKővágó, Zoltán
Remove no longer needed code. Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com> Message-id: 82c176a5222a56e4fde45d2b423ada797caddd5d.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>
2019-01-22audio: Remove AudioState from "qemu/typedefs.h"Philippe Mathieu-Daudé
Files requiring AudioState already include "audio_int.h". To clean "qemu/typedefs.h", move the declaration to "audio_int.h" (removing the forward declaration). Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Thomas Huth <thuth@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
2018-03-05audio: rename CONFIG_* to CONFIG_AUDIO_*Gerd Hoffmann
This avoids a name clash for CONFIG_SDL, which is used by both sdl video support and sdl audio support. It also more clear that this is a audio driver configuration. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Message-id: 20180301100547.18962-13-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>
2016-07-12Clean up decorations and whitespace around header guardsMarkus Armbruster
Cleaned up with scripts/clean-header-guards.pl. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Richard Henderson <rth@twiddle.net>
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>
2015-06-15audio: remove winwave audio driverKővágó, Zoltán
DirectSound should be a superior choice on Windows. Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2015-06-15audio: remove fmod backendKővágó, Zoltán
Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2015-06-15audio: remove esd backendKővágó, Zoltán
ESD is no longer developed and replaced by PulseAudio. Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-06-21audio: Replace static functions in header file by macros, remove GCC_ATTRStefan Weil
Using macros instead of static functions for dolog and for ldebug simplifies the code and can also reduce the total code size. GCC_ATTR was only used in audio_int.h, so it is now unused and the definition can be removed from compiler.h. Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2012-04-17audio: don't apply volume effect if backend has VOICE_VOLUME_CAPMarc-André Lureau
If the audio backend is capable of volume control, don't apply software volume (mixeng_volume ()), but instead, rely on backend volume control. This will allow guest to have full range volume control. Signed-off-by: Marc-Andr? Lureau <marcandre.lureau@redhat.com> Signed-off-by: malc <av1474@comtv.ru>
2012-04-17audio: add VOICE_VOLUME ctlMarc-André Lureau
Add a new PCM control operation to update the stream volume on the audio backend. The argument given is a SWVoiceOut/SWVoiceIn. v4: - verified other backends didn't fail/assert on this new control they randomly return 0 or -1, but we ignore return value. Signed-off-by: Marc-Andr? Lureau <marcandre.lureau@redhat.com> Signed-off-by: malc <av1474@comtv.ru>
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>
2010-11-09spice: add audioGerd Hoffmann
Add support for the spice audio interface. With this patch applied audio can be forwarded over the network from/to the spice client. Both recording and playback is supported. The driver is first in the driver list, but the can_be_default flag is set only in case spice is active. So if you have the spice protocol enabled the spice audio driver is the default one, otherwise whatever comes first after spice in the list. Overriding the default using QEMU_AUDIO_DRV works in any case. [ v2: audio codestyle: add spaces before open parenthesis ] [ v2: add const to silence array ] Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Cc: malc <av1474@comtv.ru> Signed-off-by: malc <av1474@comtv.ru>
2010-09-22Move macros GCC_ATTR and GCC_FMT_ATTR to common header fileStefan Weil
By moving the definition of GCC_ATTR and GCC_FMT_ATTR from audio_int.h to qemu-common.h these macros are now generally available for further patches which add the gcc format attribute. Newer gcc versions support format gnu_printf which is better suited for use in QEMU than format printf (QEMU always uses standard format strings (even with mingw32)). V2: Use correct operator '==' (instead of '=') Cc: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-10-15audio: remove last remnants of _tmalc
Signed-off-by: malc <av1474@comtv.ru>
2009-10-10Windows Waveform Audio driver (no ADC support yet)malc
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>
2009-09-18audio: introduce audio_pcm_hw_clip_out helper functionmalc
Signed-off-by: malc <av1474@comtv.ru>
2009-09-12Fix sys-queue.h conflict for goodBlue Swirl
Problem: Our file sys-queue.h is a copy of the BSD file, but there are some additions and it's not entirely compatible. Because of that, there have been conflicts with system headers on BSD systems. Some hacks have been introduced in the commits 15cc9235840a22c289edbe064a9b3c19c5f49896, f40d753718c72693c5f520f0d9899f6e50395e94, 96555a96d724016e13190b28cffa3bc929ac60dc and 3990d09adf4463eca200ad964cc55643c33feb50 but the fixes were fragile. Solution: Avoid the conflict entirely by renaming the functions and the file. Revert the previous hacks. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-09-12audio: poll mode infrastructuremalc
Signed-off-by: malc <av1474@comtv.ru>
2009-08-11Use proper struct initializers and remove INIT_FIELD() macroJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com>
2009-05-14Remove any pretense that there can be more than one AudioStatemalc
2009-02-18Avoid running audio ctl's when vm is not runningmalc
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6627 c046a42c-6fe2-441c-8c8c-71466251a162
2008-12-03Make audio violate POSIX lessmalc
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5864 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-06Prepare for changing audio_pcm_ops dynamically (partially revert r5422)blueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5435 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-05Make audio_pcm_opsstatic constblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5422 c046a42c-6fe2-441c-8c8c-71466251a162
2008-07-02Pulseaudio drivermalc
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4827 c046a42c-6fe2-441c-8c8c-71466251a162
2008-01-14pthreads-based audio and miscellaneous audio clean-up (malc).balrog
ESD support (malc, Frederick Reeve). git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3917 c046a42c-6fe2-441c-8c8c-71466251a162
2007-07-12Spelling fix, by Stuart Brady.ths
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3076 c046a42c-6fe2-441c-8c8c-71466251a162
2006-07-16audio capture to wab files (malc)bellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2059 c046a42c-6fe2-441c-8c8c-71466251a162
2006-07-04audio endianness API changes (malc)bellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2042 c046a42c-6fe2-441c-8c8c-71466251a162
2006-07-04audio fixes + initial audio capture support (malc)bellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2040 c046a42c-6fe2-441c-8c8c-71466251a162
2005-11-20audio merge (malc)bellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1636 c046a42c-6fe2-441c-8c8c-71466251a162
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-22 06:32:59 +0000