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-rw-r--r--audio/audio.c2
-rw-r--r--audio/audio_legacy.c3
-rw-r--r--audio/audio_template.h2
-rw-r--r--audio/sdlaudio.c11
-rw-r--r--qapi/audio.json33
-rw-r--r--qemu-options.hx8
6 files changed, 52 insertions, 7 deletions
diff --git a/audio/audio.c b/audio/audio.c
index b48471bb3f..d048d26283 100644
--- a/audio/audio.c
+++ b/audio/audio.c
@@ -2003,7 +2003,7 @@ void audio_create_pdos(Audiodev *dev)
CASE(JACK, jack, Jack);
CASE(OSS, oss, Oss);
CASE(PA, pa, Pa);
- CASE(SDL, sdl, );
+ CASE(SDL, sdl, Sdl);
CASE(SPICE, spice, );
CASE(WAV, wav, );
diff --git a/audio/audio_legacy.c b/audio/audio_legacy.c
index ffdbd0bcce..0fe827b057 100644
--- a/audio/audio_legacy.c
+++ b/audio/audio_legacy.c
@@ -286,7 +286,8 @@ static void handle_sdl(Audiodev *dev)
{
/* SDL is output only */
get_samples_to_usecs("QEMU_SDL_SAMPLES", &dev->u.sdl.out->buffer_length,
- &dev->u.sdl.out->has_buffer_length, dev->u.sdl.out);
+ &dev->u.sdl.out->has_buffer_length,
+ qapi_AudiodevSdlPerDirectionOptions_base(dev->u.sdl.out));
}
/* wav */
diff --git a/audio/audio_template.h b/audio/audio_template.h
index 8dd48ce14e..434df5d5e7 100644
--- a/audio/audio_template.h
+++ b/audio/audio_template.h
@@ -337,7 +337,7 @@ AudiodevPerDirectionOptions *glue(audio_get_pdo_, TYPE)(Audiodev *dev)
case AUDIODEV_DRIVER_PA:
return qapi_AudiodevPaPerDirectionOptions_base(dev->u.pa.TYPE);
case AUDIODEV_DRIVER_SDL:
- return dev->u.sdl.TYPE;
+ return qapi_AudiodevSdlPerDirectionOptions_base(dev->u.sdl.TYPE);
case AUDIODEV_DRIVER_SPICE:
return dev->u.spice.TYPE;
case AUDIODEV_DRIVER_WAV:
diff --git a/audio/sdlaudio.c b/audio/sdlaudio.c
index 00cd12ba66..431bfcfddd 100644
--- a/audio/sdlaudio.c
+++ b/audio/sdlaudio.c
@@ -276,12 +276,18 @@ static int sdl_init_out(HWVoiceOut *hw, struct audsettings *as,
int endianness;
int err;
AudioFormat effective_fmt;
+ AudiodevSdlPerDirectionOptions *spdo = s->dev->u.sdl.out;
struct audsettings obt_as;
req.freq = as->freq;
req.format = aud_to_sdlfmt (as->fmt);
req.channels = as->nchannels;
- req.samples = audio_buffer_samples(s->dev->u.sdl.out, as, 11610);
+ /*
+ * This is wrong. SDL samples are QEMU frames. The buffer size will be
+ * the requested buffer size multiplied by the number of channels.
+ */
+ req.samples = audio_buffer_samples(
+ qapi_AudiodevSdlPerDirectionOptions_base(spdo), as, 11610);
req.callback = sdl_callback;
req.userdata = sdl;
@@ -301,7 +307,8 @@ static int sdl_init_out(HWVoiceOut *hw, struct audsettings *as,
obt_as.endianness = endianness;
audio_pcm_init_info (&hw->info, &obt_as);
- hw->samples = obt.samples;
+ hw->samples = (spdo->has_buffer_count ? spdo->buffer_count : 4) *
+ obt.samples;
s->initialized = 1;
s->exit = 0;
diff --git a/qapi/audio.json b/qapi/audio.json
index 072ed79def..9cba0df8a4 100644
--- a/qapi/audio.json
+++ b/qapi/audio.json
@@ -302,6 +302,37 @@
'*server': 'str' } }
##
+# @AudiodevSdlPerDirectionOptions:
+#
+# Options of the SDL audio backend that are used for both playback and
+# recording.
+#
+# @buffer-count: number of buffers (default 4)
+#
+# Since: 6.0
+##
+{ 'struct': 'AudiodevSdlPerDirectionOptions',
+ 'base': 'AudiodevPerDirectionOptions',
+ 'data': {
+ '*buffer-count': 'uint32' } }
+
+##
+# @AudiodevSdlOptions:
+#
+# Options of the SDL audio backend.
+#
+# @in: options of the recording stream
+#
+# @out: options of the playback stream
+#
+# Since: 6.0
+##
+{ 'struct': 'AudiodevSdlOptions',
+ 'data': {
+ '*in': 'AudiodevSdlPerDirectionOptions',
+ '*out': 'AudiodevSdlPerDirectionOptions' } }
+
+##
# @AudiodevWavOptions:
#
# Options of the wav audio backend.
@@ -385,6 +416,6 @@
'jack': 'AudiodevJackOptions',
'oss': 'AudiodevOssOptions',
'pa': 'AudiodevPaOptions',
- 'sdl': 'AudiodevGenericOptions',
+ 'sdl': 'AudiodevSdlOptions',
'spice': 'AudiodevGenericOptions',
'wav': 'AudiodevWavOptions' } }
diff --git a/qemu-options.hx b/qemu-options.hx
index 1698a0c751..4e02e9bd76 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -588,6 +588,7 @@ DEF("audiodev", HAS_ARG, QEMU_OPTION_audiodev,
#endif
#ifdef CONFIG_AUDIO_SDL
"-audiodev sdl,id=id[,prop[=value][,...]]\n"
+ " in|out.buffer-count= number of buffers\n"
#endif
#ifdef CONFIG_SPICE
"-audiodev spice,id=id[,prop[=value][,...]]\n"
@@ -745,7 +746,12 @@ SRST
``-audiodev sdl,id=id[,prop[=value][,...]]``
Creates a backend using SDL. This backend is available on most
systems, but you should use your platform's native backend if
- possible. This backend has no backend specific properties.
+ possible.
+
+ SDL specific options are:
+
+ ``in|out.buffer-count=count``
+ Sets the count of the buffers.
``-audiodev spice,id=id[,prop[=value][,...]]``
Creates a backend that sends audio through SPICE. This backend