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audio: rename audio_sw_bytes_free()

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Rename and refactor audio_sw_bytes_free(). This function is not
limited to calculate the free audio buffer size. The renamed
function returns the number of frames instead of bytes.

Signed-off-by: Volker Rümelin <vr_qemu@t-online.de>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20220923183640.8314-9-vr_qemu@t-online.de>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Volker Rümelin 2022-09-23 20:36:37 +02:00 committed by Gerd Hoffmann
parent 613fe02b2a
commit c4e592647e
1 changed files with 14 additions and 6 deletions
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20
audio/audio.c
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@ -1010,9 +1010,16 @@ static size_t audio_get_avail (SWVoiceIn *sw)
return (((int64_t) live << 32) / sw->ratio) * sw->info.bytes_per_frame; return (((int64_t) live << 32) / sw->ratio) * sw->info.bytes_per_frame;
} }
static size_t audio_sw_bytes_free(SWVoiceOut *sw, size_t free) /**
* audio_frontend_frames_out() - returns the number of frames needed to
* get frames_out frames after resampling
*
* @sw: audio playback frontend
* @frames_out: number of frames
*/
static size_t audio_frontend_frames_out(SWVoiceOut *sw, size_t frames_out)
{ {
return (((int64_t)free << 32) / sw->ratio) * sw->info.bytes_per_frame; return ((int64_t)frames_out << 32) / sw->ratio;
} }
static size_t audio_get_free(SWVoiceOut *sw) static size_t audio_get_free(SWVoiceOut *sw)
@ -1034,8 +1041,8 @@ static size_t audio_get_free(SWVoiceOut *sw)
dead = sw->hw->mix_buf->size - live; dead = sw->hw->mix_buf->size - live;
#ifdef DEBUG_OUT #ifdef DEBUG_OUT
dolog("%s: get_free live %zu dead %zu sw_bytes %zu\n", dolog("%s: get_free live %zu dead %zu frontend frames %zu\n",
SW_NAME(sw), live, dead, audio_sw_bytes_free(sw, dead)); SW_NAME(sw), live, dead, audio_frontend_frames_out(sw, dead));
#endif #endif
return dead; return dead;
@ -1156,13 +1163,14 @@ static void audio_run_out (AudioState *s)
size_t free; size_t free;
if (hw_free > sw->total_hw_samples_mixed) { if (hw_free > sw->total_hw_samples_mixed) {
free = audio_sw_bytes_free(sw, free = audio_frontend_frames_out(sw,
MIN(sw_free, hw_free - sw->total_hw_samples_mixed)); MIN(sw_free, hw_free - sw->total_hw_samples_mixed));
} else { } else {
free = 0; free = 0;
} }
if (free > 0) { if (free > 0) {
sw->callback.fn(sw->callback.opaque, free); sw->callback.fn(sw->callback.opaque,
free * sw->info.bytes_per_frame);
} }
} }
} }