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coreaudio: add ca_MuteSet()

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This will write 0s from the render callback without touching at the
playback buffer state.
This commit is contained in:
Thomas Guillem 2021-04-21 11:18:28 +02:00 committed by Jean-Baptiste Kempf
parent 42bc3b3d8f
commit 09de6e91d3
2 changed files with 18 additions and 1 deletions
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16
modules/audio_output/coreaudio_common.c
View File

@ -203,7 +203,10 @@ ca_Render(audio_output_t *p_aout, uint32_t i_frames, uint64_t i_host_time,
while (p_block != NULL && i_requested != 0)
{
size_t i_tocopy = __MIN(i_requested, p_block->i_buffer);
memcpy(p_output, p_block->p_buffer, i_tocopy);
if (unlikely(p_sys->b_muted))
memset(p_output, 0, i_tocopy);
else
memcpy(p_output, p_block->p_buffer, i_tocopy);
i_requested -= i_tocopy;
i_copied += i_tocopy;
p_output += i_tocopy;
@ -313,6 +316,16 @@ ca_Pause(audio_output_t * p_aout, bool pause, vlc_tick_t date)
lock_unlock(p_sys);
}
void
ca_MuteSet(audio_output_t * p_aout, bool muted)
{
struct aout_sys_common *p_sys = (struct aout_sys_common *) p_aout->sys;
lock_lock(p_sys);
p_sys->b_muted = muted;
lock_unlock(p_sys);
}
void
ca_Play(audio_output_t * p_aout, block_t * p_block, vlc_tick_t date)
{
@ -415,6 +428,7 @@ ca_Initialize(audio_output_t *p_aout, const audio_sample_format_t *fmt,
p_sys->i_underrun_size = 0;
p_sys->b_paused = false;
p_sys->b_muted = false;
p_sys->i_render_host_time = p_sys->i_first_render_host_time = 0;
p_sys->i_render_frames = 0;

3
modules/audio_output/coreaudio_common.h
View File

@ -53,6 +53,7 @@ struct aout_sys_common
size_t i_underrun_size;
bool b_paused;
bool b_muted;
bool b_do_flush;
size_t i_out_max_size;
@ -95,6 +96,8 @@ void ca_Flush(audio_output_t *p_aout);
void ca_Pause(audio_output_t * p_aout, bool pause, vlc_tick_t date);
void ca_MuteSet(audio_output_t * p_aout, bool mute);
void ca_Play(audio_output_t * p_aout, block_t * p_block, vlc_tick_t date);
int ca_Initialize(audio_output_t *p_aout, const audio_sample_format_t *fmt,