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c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1769538377; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=APoRaYo9Exx/5FoFG2t8IvvAHsrxIzTAySQhFWOHYaA=; b=dM2nMekZMXiLgJrpJIupraqsvSwcXiE6HWzsoNjqbD8gZuUQnz2wgNrSxi8pjHOCbs2U+q 53MabvqzmM7gkk+mZXXvTdvTrM0v0041e00D5r3yPlFFMO6NqZgKUZnNKcYoG0ysc9whus DiOJkhVQOgta1eG2qXtEqonEVWthppc= X-MC-Unique: PgNZSBoxNRGtxeFrQ5QymA-1 X-Mimecast-MFC-AGG-ID: PgNZSBoxNRGtxeFrQ5QymA_1769538375 From: marcandre.lureau@redhat.com To: qemu-devel@nongnu.org Cc: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Gerd Hoffmann , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Subject: [PATCH 09/43] audio/pw: convert to QOM lifecycle methods Date: Tue, 27 Jan 2026 22:24:36 +0400 Message-ID: <20260127182516.289834-10-marcandre.lureau@redhat.com> In-Reply-To: <20260127182516.289834-1-marcandre.lureau@redhat.com> References: <20260127182516.289834-1-marcandre.lureau@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.93 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.129.124; envelope-from=marcandre.lureau@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=0.001, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1769538472758154100 From: Marc-Andr=C3=A9 Lureau Migrate the PipeWire audio backend from the legacy driver init/fini callbacks to proper QOM realize and finalize methods. The pwaudio struct fields are now embedded directly in the AudioPw QOM object instead of being allocated separately as drv_opaque. This allows accessing the backend state through proper QOM type casting with AUDIO_PW() rather than casting drv_opaque pointers. The PipeWire thread loop and context are now managed through the QOM lifecycle, with initialization in realize and cleanup in finalize. Signed-off-by: Marc-Andr=C3=A9 Lureau --- audio/pwaudio.c | 119 +++++++++++++++++++++++------------------------- 1 file changed, 58 insertions(+), 61 deletions(-) diff --git a/audio/pwaudio.c b/audio/pwaudio.c index ed48a9754fe..ddf5f2c70f7 100644 --- a/audio/pwaudio.c +++ b/audio/pwaudio.c @@ -31,36 +31,27 @@ #define TYPE_AUDIO_PW "audio-pipewire" OBJECT_DECLARE_SIMPLE_TYPE(AudioPw, AUDIO_PW) =20 +static AudioBackendClass *audio_pw_parent_class; + struct AudioPw { AudioMixengBackend parent; -}; =20 -static struct audio_driver pw_audio_driver; + struct pw_thread_loop *thread_loop; + struct pw_context *context; =20 -static void audio_pw_class_init(ObjectClass *klass, const void *data) -{ - AudioMixengBackendClass *k =3D AUDIO_MIXENG_BACKEND_CLASS(klass); + struct pw_core *core; + struct spa_hook core_listener; + int last_seq, pending_seq, error; +}; =20 - k->driver =3D &pw_audio_driver; -} +static struct audio_driver pw_audio_driver; =20 typedef struct pwvolume { uint32_t channels; float values[SPA_AUDIO_MAX_CHANNELS]; } pwvolume; =20 -typedef struct pwaudio { - Audiodev *dev; - struct pw_thread_loop *thread_loop; - struct pw_context *context; - - struct pw_core *core; - struct spa_hook core_listener; - int last_seq, pending_seq, error; -} pwaudio; - typedef struct PWVoice { - pwaudio *g; struct pw_stream *stream; struct spa_hook stream_listener; struct spa_audio_info_raw info; @@ -236,9 +227,9 @@ static const struct pw_stream_events playback_stream_ev= ents =3D { static size_t qpw_read(HWVoiceIn *hw, void *data, size_t len) { + AudioPw *c =3D AUDIO_PW(hw->s); PWVoiceIn *pw =3D (PWVoiceIn *) hw; PWVoice *v =3D &pw->v; - pwaudio *c =3D v->g; const char *error =3D NULL; size_t l; int32_t avail; @@ -273,9 +264,9 @@ done_unlock: =20 static size_t qpw_buffer_get_free(HWVoiceOut *hw) { + AudioPw *c =3D AUDIO_PW(hw->s); PWVoiceOut *pw =3D (PWVoiceOut *)hw; PWVoice *v =3D &pw->v; - pwaudio *c =3D v->g; const char *error =3D NULL; int32_t filled, avail; uint32_t index; @@ -298,9 +289,9 @@ done_unlock: static size_t qpw_write(HWVoiceOut *hw, void *data, size_t len) { + AudioPw *c =3D AUDIO_PW(hw->s); PWVoiceOut *pw =3D (PWVoiceOut *) hw; PWVoice *v =3D &pw->v; - pwaudio *c =3D v->g; const char *error =3D NULL; int32_t filled, avail; uint32_t index; @@ -434,7 +425,7 @@ pw_to_audfmt(enum spa_audio_format fmt, int *endianness, } =20 static int -qpw_stream_new(pwaudio *c, PWVoice *v, const char *stream_name, +qpw_stream_new(AudioPw *c, PWVoice *v, const char *stream_name, const char *name, enum spa_direction dir) { int res; @@ -452,8 +443,8 @@ qpw_stream_new(pwaudio *c, PWVoice *v, const char *stre= am_name, } =20 /* 75% of the timer period for faster updates */ - buf_samples =3D (uint64_t)v->g->dev->timer_period * v->info.rate - * 3 / 4 / 1000000; + buf_samples =3D (uint64_t)AUDIO_MIXENG_BACKEND(c)->dev->timer_period + * v->info.rate * 3 / 4 / 1000000; pw_properties_setf(props, PW_KEY_NODE_LATENCY, "%" PRIu64 "/%u", buf_samples, v->info.rate); =20 @@ -535,11 +526,11 @@ qpw_set_position(uint32_t channels, uint32_t position= [SPA_AUDIO_MAX_CHANNELS]) static int qpw_init_out(HWVoiceOut *hw, struct audsettings *as, void *drv_opaque) { + AudioPw *c =3D AUDIO_PW(hw->s); PWVoiceOut *pw =3D (PWVoiceOut *) hw; PWVoice *v =3D &pw->v; struct audsettings obt_as =3D *as; - pwaudio *c =3D v->g =3D drv_opaque; - AudiodevPipewireOptions *popts =3D &c->dev->u.pipewire; + AudiodevPipewireOptions *popts =3D &AUDIO_MIXENG_BACKEND(c)->dev->u.pi= pewire; AudiodevPipewirePerDirectionOptions *ppdo =3D popts->out; int r; =20 @@ -554,11 +545,11 @@ qpw_init_out(HWVoiceOut *hw, struct audsettings *as, = void *drv_opaque) pw_to_audfmt(v->info.format, &obt_as.endianness, &v->frame_size); v->frame_size *=3D as->nchannels; =20 - v->req =3D (uint64_t)c->dev->timer_period * v->info.rate + v->req =3D (uint64_t)AUDIO_MIXENG_BACKEND(c)->dev->timer_period * v->i= nfo.rate * 1 / 2 / 1000000 * v->frame_size; =20 /* call the function that creates a new stream for playback */ - r =3D qpw_stream_new(c, v, ppdo->stream_name ? : c->dev->id, + r =3D qpw_stream_new(c, v, ppdo->stream_name ?: AUDIO_MIXENG_BACKEND(c= )->dev->id, ppdo->name, SPA_DIRECTION_OUTPUT); if (r < 0) { pw_thread_loop_unlock(c->thread_loop); @@ -582,11 +573,11 @@ qpw_init_out(HWVoiceOut *hw, struct audsettings *as, = void *drv_opaque) static int qpw_init_in(HWVoiceIn *hw, struct audsettings *as, void *drv_opaque) { + AudioPw *c =3D AUDIO_PW(hw->s); PWVoiceIn *pw =3D (PWVoiceIn *) hw; PWVoice *v =3D &pw->v; struct audsettings obt_as =3D *as; - pwaudio *c =3D v->g =3D drv_opaque; - AudiodevPipewireOptions *popts =3D &c->dev->u.pipewire; + AudiodevPipewireOptions *popts =3D &AUDIO_MIXENG_BACKEND(c)->dev->u.pi= pewire; AudiodevPipewirePerDirectionOptions *ppdo =3D popts->in; int r; =20 @@ -602,7 +593,7 @@ qpw_init_in(HWVoiceIn *hw, struct audsettings *as, void= *drv_opaque) v->frame_size *=3D as->nchannels; =20 /* call the function that creates a new stream for recording */ - r =3D qpw_stream_new(c, v, ppdo->stream_name ? : c->dev->id, + r =3D qpw_stream_new(c, v, ppdo->stream_name ? : AUDIO_MIXENG_BACKEND(= c)->dev->id, ppdo->name, SPA_DIRECTION_INPUT); if (r < 0) { pw_thread_loop_unlock(c->thread_loop); @@ -621,10 +612,8 @@ qpw_init_in(HWVoiceIn *hw, struct audsettings *as, voi= d *drv_opaque) } =20 static void -qpw_voice_fini(PWVoice *v) +qpw_voice_fini(AudioPw *c, PWVoice *v) { - pwaudio *c =3D v->g; - if (!v->stream) { return; } @@ -637,19 +626,18 @@ qpw_voice_fini(PWVoice *v) static void qpw_fini_out(HWVoiceOut *hw) { - qpw_voice_fini(&PW_VOICE_OUT(hw)->v); + qpw_voice_fini(AUDIO_PW(hw->s), &PW_VOICE_OUT(hw)->v); } =20 static void qpw_fini_in(HWVoiceIn *hw) { - qpw_voice_fini(&PW_VOICE_IN(hw)->v); + qpw_voice_fini(AUDIO_PW(hw->s), &PW_VOICE_IN(hw)->v); } =20 static void -qpw_voice_set_enabled(PWVoice *v, bool enable) +qpw_voice_set_enabled(AudioPw *c, PWVoice *v, bool enable) { - pwaudio *c =3D v->g; pw_thread_loop_lock(c->thread_loop); pw_stream_set_active(v->stream, enable); pw_thread_loop_unlock(c->thread_loop); @@ -658,19 +646,18 @@ qpw_voice_set_enabled(PWVoice *v, bool enable) static void qpw_enable_out(HWVoiceOut *hw, bool enable) { - qpw_voice_set_enabled(&PW_VOICE_OUT(hw)->v, enable); + qpw_voice_set_enabled(AUDIO_PW(hw->s), &PW_VOICE_OUT(hw)->v, enable); } =20 static void qpw_enable_in(HWVoiceIn *hw, bool enable) { - qpw_voice_set_enabled(&PW_VOICE_IN(hw)->v, enable); + qpw_voice_set_enabled(AUDIO_PW(hw->s), &PW_VOICE_IN(hw)->v, enable); } =20 static void -qpw_voice_set_volume(PWVoice *v, Volume *vol) +qpw_voice_set_volume(AudioPw *c, PWVoice *v, Volume *vol) { - pwaudio *c =3D v->g; int i, ret; =20 pw_thread_loop_lock(c->thread_loop); @@ -693,16 +680,16 @@ qpw_voice_set_volume(PWVoice *v, Volume *vol) static void qpw_volume_out(HWVoiceOut *hw, Volume *vol) { - qpw_voice_set_volume(&PW_VOICE_OUT(hw)->v, vol); + qpw_voice_set_volume(AUDIO_PW(hw->s), &PW_VOICE_OUT(hw)->v, vol); } =20 static void qpw_volume_in(HWVoiceIn *hw, Volume *vol) { - qpw_voice_set_volume(&PW_VOICE_IN(hw)->v, vol); + qpw_voice_set_volume(AUDIO_PW(hw->s), &PW_VOICE_IN(hw)->v, vol); } =20 -static int wait_resync(pwaudio *pw) +static int wait_resync(AudioPw *pw) { int res; pw->pending_seq =3D pw_core_sync(pw->core, PW_ID_CORE, pw->pending_seq= ); @@ -725,7 +712,7 @@ static int wait_resync(pwaudio *pw) static void on_core_error(void *data, uint32_t id, int seq, int res, const char *messa= ge) { - pwaudio *pw =3D data; + AudioPw *pw =3D data; =20 error_report("error id:%u seq:%d res:%d (%s): %s", id, seq, res, spa_strerror(res), message); @@ -737,7 +724,7 @@ on_core_error(void *data, uint32_t id, int seq, int res= , const char *message) static void on_core_done(void *data, uint32_t id, int seq) { - pwaudio *pw =3D data; + AudioPw *pw =3D data; assert(id =3D=3D PW_ID_CORE); pw->last_seq =3D seq; if (pw->pending_seq =3D=3D seq) { @@ -752,17 +739,20 @@ static const struct pw_core_events core_events =3D { .error =3D on_core_error, }; =20 -static void * -qpw_audio_init(Audiodev *dev, Error **errp) +static bool +audio_pw_realize(AudioBackend *abe, Audiodev *dev, Error **errp) { - g_autofree pwaudio *pw =3D g_new0(pwaudio, 1); + AudioPw *pw =3D AUDIO_PW(abe); =20 assert(dev->driver =3D=3D AUDIODEV_DRIVER_PIPEWIRE); trace_pw_audio_init(); =20 + if (!audio_pw_parent_class->realize(abe, dev, errp)) { + return false; + } + pw_init(NULL, NULL); =20 - pw->dev =3D dev; pw->thread_loop =3D pw_thread_loop_new("PipeWire thread loop", NULL); if (pw->thread_loop =3D=3D NULL) { error_setg_errno(errp, errno, "Could not create PipeWire loop"); @@ -801,8 +791,7 @@ qpw_audio_init(Audiodev *dev, Error **errp) } =20 pw_thread_loop_unlock(pw->thread_loop); - - return g_steal_pointer(&pw); + return true; =20 fail: if (pw->thread_loop) { @@ -810,13 +799,13 @@ fail: } g_clear_pointer(&pw->context, pw_context_destroy); g_clear_pointer(&pw->thread_loop, pw_thread_loop_destroy); - return NULL; + return false; } =20 static void -qpw_audio_fini(void *opaque) +audio_pw_finalize(Object *obj) { - pwaudio *pw =3D opaque; + AudioPw *pw =3D AUDIO_PW(obj); =20 if (pw->thread_loop) { pw_thread_loop_stop(pw->thread_loop); @@ -831,9 +820,7 @@ qpw_audio_fini(void *opaque) if (pw->context) { pw_context_destroy(pw->context); } - pw_thread_loop_destroy(pw->thread_loop); - - g_free(pw); + g_clear_pointer(&pw->thread_loop, pw_thread_loop_destroy); } =20 static struct audio_pcm_ops qpw_pcm_ops =3D { @@ -855,8 +842,6 @@ static struct audio_pcm_ops qpw_pcm_ops =3D { =20 static struct audio_driver pw_audio_driver =3D { .name =3D "pipewire", - .init =3D qpw_audio_init, - .fini =3D qpw_audio_fini, .pcm_ops =3D &qpw_pcm_ops, .max_voices_out =3D INT_MAX, .max_voices_in =3D INT_MAX, @@ -864,11 +849,23 @@ static struct audio_driver pw_audio_driver =3D { .voice_size_in =3D sizeof(PWVoiceIn), }; =20 +static void audio_pw_class_init(ObjectClass *klass, const void *data) +{ + AudioBackendClass *b =3D AUDIO_BACKEND_CLASS(klass); + AudioMixengBackendClass *k =3D AUDIO_MIXENG_BACKEND_CLASS(klass); + + audio_pw_parent_class =3D AUDIO_BACKEND_CLASS(object_class_get_parent(= klass)); + + b->realize =3D audio_pw_realize; + k->driver =3D &pw_audio_driver; +} + static const TypeInfo audio_pw_info =3D { .name =3D TYPE_AUDIO_PW, .parent =3D TYPE_AUDIO_MIXENG_BACKEND, .instance_size =3D sizeof(AudioPw), .class_init =3D audio_pw_class_init, + .instance_finalize =3D audio_pw_finalize, }; =20 static void --=20 2.52.0