int audio_output_open(audio_t *audio, media_t media, struct audio_info *info)
{
struct audio_output *out;
if (!valid_audio_params(info))
return AUDIO_OUTPUT_INVALIDPARAM;
out = bmalloc(sizeof(struct audio_output));
memset(out, 0, sizeof(struct audio_output));
memcpy(&out->info, info, sizeof(struct audio_info));
pthread_mutex_init_value(&out->line_mutex);
out->media = media;
out->block_size = get_audio_channels(info->speakers) *
get_audio_bytes_per_channel(info->format);
if (pthread_mutex_init(&out->line_mutex, NULL) != 0)
goto fail;
if (event_init(&out->stop_event, true) != 0)
goto fail;
if (!ao_add_to_media(out))
goto fail;
if (pthread_create(&out->thread, NULL, audio_thread, out) != 0)
goto fail;
out->initialized = true;
*audio = out;
return AUDIO_OUTPUT_SUCCESS;
fail:
audio_output_close(out);
return AUDIO_OUTPUT_FAIL;
}
int audio_output_open(audio_t *audio, struct audio_output_info *info)
{
struct audio_output *out;
pthread_mutexattr_t attr;
bool planar = is_audio_planar(info->format);
if (!valid_audio_params(info))
return AUDIO_OUTPUT_INVALIDPARAM;
out = bzalloc(sizeof(struct audio_output));
if (!out)
goto fail;
memcpy(&out->info, info, sizeof(struct audio_output_info));
pthread_mutex_init_value(&out->line_mutex);
out->channels = get_audio_channels(info->speakers);
out->planes = planar ? out->channels : 1;
out->block_size = (planar ? 1 : out->channels) *
get_audio_bytes_per_channel(info->format);
if (pthread_mutexattr_init(&attr) != 0)
goto fail;
if (pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE) != 0)
goto fail;
if (pthread_mutex_init(&out->line_mutex, &attr) != 0)
goto fail;
if (pthread_mutex_init(&out->input_mutex, NULL) != 0)
goto fail;
if (os_event_init(&out->stop_event, OS_EVENT_TYPE_MANUAL) != 0)
goto fail;
if (pthread_create(&out->thread, NULL, audio_thread, out) != 0)
goto fail;
out->initialized = true;
*audio = out;
return AUDIO_OUTPUT_SUCCESS;
fail:
audio_output_close(out);
return AUDIO_OUTPUT_FAIL;
}
