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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>
2015-06-15paaudio: fix possible resource leakKővágó, Zoltán
qpa_audio_init did not clean up resources properly if the initialization failed. This hopefully fixes it. Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2015-06-15paaudio: 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>
2013-12-09audio: adjust pulse to 100Hz wakeup rateGerd Hoffmann
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-05-04fix build with pulseaudio versions older than 0.9.11Gerd Hoffmann
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: malc <av1474@comtv.ru>
2012-04-25fix paaudio.c warningsGerd Hoffmann
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: malc <av1474@comtv.ru>
2012-04-17Allow controlling volume with PulseAudio backendMarc-André Lureau
Signed-off-by: Marc-Andr? Lureau <marcandre.lureau@redhat.com> Signed-off-by: malc <av1474@comtv.ru>
2012-04-17Do not use pa_simple PulseAudio APIMarc-André Lureau
Unfortunately, pa_simple is a limited API which doesn't let us retrieve the associated pa_stream. It is needed to control the volume of the stream. In v4: - add missing braces Signed-off-by: Marc-Andr? Lureau <marcandre.lureau@redhat.com> Signed-off-by: malc <av1474@comtv.ru>
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>
2011-01-25pulseaudio: tweak configGerd Hoffmann
Zap unused divisor field. Raise the buffer size default. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: malc <av1474@comtv.ru>
2011-01-25pulseaudio: setup buffer attrsGerd Hoffmann
Request reasonable buffer sizes from pulseaudio. Without this pa_simple_write() can block quite long and lead to dropouts, especially with guests which use small audio ring buffers. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: malc <av1474@comtv.ru>
2011-01-25pulseaudio: process 1/4 buffer max at onceGerd Hoffmann
Limit the size of data pieces processed by the pulseaudio worker threads. Never ever process more than 1/4 of the buffer at once. Background: The buffer area currently processed by the pulseaudio thread is blocked, i.e. the main thread (or iothread) can't fill in more data there. The buffer processing time is roughly real-time due to the pa_simple_write() call blocking when the output queue to the pulse server is full. Thus processing big chunks at once means blocking a large part of the buffer for a long time. This brings high latency and can lead to dropouts. When processing the buffer in smaller chunks the rpos handling becomes a problem though. The thread reads hw->rpos without knowing whenever qpa_run_out has already seen the last (small) chunk processed and updated rpos accordingly. There is no point in reading hw->rpos though, pa->rpos can be used instead. We just need to take care to initialize pa->rpos before kicking the thread. Signed-off-by: Gerd Hoffmann <kraxel@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>
2010-09-29pulse-audio: fix bug on updating rposWu Fengguang
Fix a rpos coordination bug between qpa_run_out() and qpa_thread_out(), which shows up as playback noises. qpa_run_out() qpa_thread_out loop N critical section 1 qpa_run_out() qpa_thread_out loop N doing pa_simple_write() qpa_run_out() qpa_thread_out loop N doing pa_simple_write() qpa_thread_out loop N critical section 2 qpa_thread_out loop N+1 critical section 1 qpa_run_out() qpa_thread_out loop N+1 doing pa_simple_write() In the above scheme, "qpa_thread_out loop N+1 critical section 1" will get the same rpos as the one used by "qpa_thread_out loop N critical section 1". So it will be reading dead samples from the old rpos. The rpos can only be updated back to qpa_thread_out when there is a qpa_run_out() run between two qpa_thread_out loops. normal sequence: qpa_thread_out: hw->rpos (X0) => local rpos => pa->rpos (X1) qpa_run_out: pa->rpos (X1) => hw->rpos (X1) qpa_thread_out: hw->rpos (X1) => local rpos => pa->rpos (X2) buggy sequence: qpa_thread_out: hw->rpos (X0) => local rpos => pa->rpos (X1) qpa_thread_out: hw->rpos (X0) => local rpos => pa->rpos (X1') Obviously qpa_run_out() shall be called at least once between any two qpa_thread_out loops (after pa->rpos is set), in order for the new qpa_thread_out loop to see the updated rpos. Setting pa->live to 0 does the trick. The next loop will have to wait for one qpa_run_out() invocation in order to get a non-zero pa->live and proceed. Signed-off-by: malc <av1474@comtv.ru> Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
2009-10-13qemu: allow pulseaudio to be the defaultMichael S. Tsirkin
We're seeing various issues with the SDL audio backend and want to switch to the pulseaudio backend. See e.g. https://bugzilla.redhat.com/495964 https://bugzilla.redhat.com/519540 https://bugzilla.redhat.com/496627 The pulseaudio backend seems to work well, so we should allow it to be selected as the default. Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> 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>
2009-08-11Aestheticsmalc
Reformat to make item borders more visible Fix cases of stray tabs and vertical misalignments Signed-off-by: malc <av1474@comtv.ru>
2009-08-11use C99 initializers for all audio/*Juan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com>
2009-08-11use C99 initializers for audio_pcm_opsJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com>
2009-08-11Use C99 initializers for audio_optionJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com>
2009-08-11Use proper struct initializers and remove INIT_FIELD() macroJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com>
2009-06-19fix qemu_alloc/qemu_free for audio subsystemJean-Christophe Dubois
Signed-off-by: Jean-Christophe DUBOIS <jcd@tribudubois.net>
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
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