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noaudio: port to the new audio backend api 

Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com>
Message-id: 10eebdd2e1529c2bd403ef98dd9d346c6d4ca3d1.1568927990.git.DirtY.iCE.hu@gmail.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Kővágó, Zoltán 2019-09-19 23:24:13 +02:00 committed by Gerd Hoffmann
parent 7fa9754ac8
commit affc691a14
1 changed files with 15 additions and 24 deletions
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39
audio/noaudio.c
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@ -41,10 +41,9 @@ typedef struct NoVoiceIn {
int64_t old_ticks;
} NoVoiceIn;
static size_t no_run_out(HWVoiceOut *hw, size_t live)
static size_t no_write(HWVoiceOut *hw, void *buf, size_t len)
{
NoVoiceOut *no = (NoVoiceOut *) hw;
size_t decr, samples;
int64_t now;
int64_t ticks;
int64_t bytes;
@ -52,13 +51,9 @@ static size_t no_run_out(HWVoiceOut *hw, size_t live)
now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
ticks = now - no->old_ticks;
bytes = muldiv64(ticks, hw->info.bytes_per_second, NANOSECONDS_PER_SECOND);
bytes = MIN(bytes, SIZE_MAX);
samples = bytes >> hw->info.shift;
no->old_ticks = now;
decr = MIN (live, samples);
hw->rpos = (hw->rpos + decr) % hw->samples;
return decr;
return MIN(len, bytes);
}
static int no_init_out(HWVoiceOut *hw, struct audsettings *as, void *drv_opaque)
@ -92,25 +87,21 @@ static void no_fini_in (HWVoiceIn *hw)
(void) hw;
}
static size_t no_run_in(HWVoiceIn *hw)
static size_t no_read(HWVoiceIn *hw, void *buf, size_t size)
{
size_t to_clear;
NoVoiceIn *no = (NoVoiceIn *) hw;
size_t live = audio_pcm_hw_get_live_in(hw);
size_t dead = hw->samples - live;
size_t samples = 0;
if (dead) {
int64_t now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
int64_t ticks = now - no->old_ticks;
int64_t bytes =
muldiv64(ticks, hw->info.bytes_per_second, NANOSECONDS_PER_SECOND);
int64_t now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
int64_t ticks = now - no->old_ticks;
int64_t bytes =
muldiv64(ticks, hw->info.bytes_per_second, NANOSECONDS_PER_SECOND);
no->old_ticks = now;
bytes = MIN (bytes, SIZE_MAX);
samples = bytes >> hw->info.shift;
samples = MIN (samples, dead);
}
return samples;
no->old_ticks = now;
to_clear = MIN(bytes, size);
audio_pcm_info_clear_buf(&hw->info, buf, to_clear >> hw->info.shift);
return to_clear;
}
static int no_ctl_in (HWVoiceIn *hw, int cmd, ...)
@ -133,12 +124,12 @@ static void no_audio_fini (void *opaque)
static struct audio_pcm_ops no_pcm_ops = {
.init_out = no_init_out,
.fini_out = no_fini_out,
.run_out = no_run_out,
.write = no_write,
.ctl_out = no_ctl_out,
.init_in = no_init_in,
.fini_in = no_fini_in,
.run_in = no_run_in,
.read = no_read,
.ctl_in = no_ctl_in
};