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authorDorinda Bassey <dbassey@redhat.com>2023-04-17 12:56:54 +0200
committerMarc-André Lureau <marcandre.lureau@redhat.com>2023-05-05 13:23:08 +0400
commitc2d3d1c294151cea0e62d3ecca09837fc23ba4b3 (patch)
tree538c28ab3111b08a7f0d0f510574685c2d20f566 /audio/audio.c
parentf6b761bdbd8ba63cee7428d52fb6b46e4224ddab (diff)
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audio/pwaudio.c: Add Pipewire audio backend for QEMU
This commit adds a new audiodev backend to allow QEMU to use Pipewire as both an audio sink and source. This backend is available on most systems Add Pipewire entry points for QEMU Pipewire audio backend Add wrappers for QEMU Pipewire audio backend in qpw_pcm_ops() qpw_write function returns the current state of the stream to pwaudio and Writes some data to the server for playback streams using pipewire spa_ringbuffer implementation. qpw_read function returns the current state of the stream to pwaudio and reads some data from the server for capture streams using pipewire spa_ringbuffer implementation. These functions qpw_write and qpw_read are called during playback and capture. Added some functions that convert pw audio formats to QEMU audio format and vice versa which would be needed in the pipewire audio sink and source functions qpw_init_in() & qpw_init_out(). These methods that implement playback and recording will create streams for playback and capture that will start processing and will result in the on_process callbacks to be called. Built a connection to the Pipewire sound system server in the qpw_audio_init() method. Signed-off-by: Dorinda Bassey <dbassey@redhat.com> Reviewed-by: Volker Rümelin <vr_qemu@t-online.de> Message-Id: <20230417105654.32328-1-dbassey@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Diffstat (limited to 'audio/audio.c')
-rw-r--r--audio/audio.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/audio/audio.c b/audio/audio.c
index 70b0967..90c7c49 100644
--- a/audio/audio.c
+++ b/audio/audio.c
@@ -2061,6 +2061,9 @@ void audio_create_pdos(Audiodev *dev)
#ifdef CONFIG_AUDIO_PA
CASE(PA, pa, Pa);
#endif
+#ifdef CONFIG_AUDIO_PIPEWIRE
+ CASE(PIPEWIRE, pipewire, Pipewire);
+#endif
#ifdef CONFIG_AUDIO_SDL
CASE(SDL, sdl, Sdl);
#endif