coreaudio: port to -audiodev config

Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com>
Message-id: ba58f7e2501b1454b5e0f91c03aad416a404fc6a.1552083282.git.DirtY.iCE.hu@gmail.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

1 files changed, 28 insertions, 0 deletions

diff --git a/audio/audio_legacy.c b/audio/audio_legacy.c
index f58c8b6aee..5f557a2de9 100644
--- a/audio/audio_legacy.c
+++ b/audio/audio_legacy.c
@@ -109,6 +109,17 @@ static uint32_t frames_to_usecs(uint32_t frames,
     return (frames * 1000000 + freq / 2) / freq;
 }
 
+
+static void get_frames_to_usecs(const char *env, uint32_t *dst, bool *has_dst,
+                                AudiodevPerDirectionOptions *pdo)
+{
+    const char *val = getenv(env);
+    if (val) {
+        *dst = frames_to_usecs(toui32(val), pdo);
+        *has_dst = true;
+    }
+}
+
 /* backend specific functions */
 /* ALSA */
 static void handle_alsa_per_direction(
@@ -156,6 +167,19 @@ static void handle_alsa(Audiodev *dev)
                         &aopt->threshold, &aopt->has_threshold);
 }
 
+/* coreaudio */
+static void handle_coreaudio(Audiodev *dev)
+{
+    get_frames_to_usecs(
+        "QEMU_COREAUDIO_BUFFER_SIZE",
+        &dev->u.coreaudio.out->buffer_length,
+        &dev->u.coreaudio.out->has_buffer_length,
+        qapi_AudiodevCoreaudioPerDirectionOptions_base(dev->u.coreaudio.out));
+    get_int("QEMU_COREAUDIO_BUFFER_COUNT",
+            &dev->u.coreaudio.out->buffer_count,
+            &dev->u.coreaudio.out->has_buffer_count);
+}
+
 /* general */
 static void handle_per_direction(
     AudiodevPerDirectionOptions *pdo, const char *prefix)
@@ -201,6 +225,10 @@ static AudiodevListEntry *legacy_opt(const char *drvname)
         handle_alsa(e->dev);
         break;
 
+    case AUDIODEV_DRIVER_COREAUDIO:
+        handle_coreaudio(e->dev);
+        break;
+
     default:
         break;
     }