void * audio_decode_thread(void *aux) { audio_decoder_t *ad = aux; const audio_class_t *ac = ad->ad_ac; int run = 1; media_pipe_t *mp = ad->ad_mp; media_queue_t *mq = &mp->mp_audio; media_buf_t *mb; int blocked = 0; if(ac->ac_init != NULL) ac->ac_init(ad); ad->ad_discontinuity = 1; hts_mutex_lock(&mp->mp_mutex); while(run) { int avail; if(ad->ad_spdif_muxer != NULL) { avail = ad->ad_spdif_frame_size; } else { avail = ad->ad_avr != NULL ? avresample_available(ad->ad_avr) : 0; } media_buf_t *data = TAILQ_FIRST(&mq->mq_q_data); media_buf_t *ctrl = TAILQ_FIRST(&mq->mq_q_ctrl); if(avail >= ad->ad_tile_size && blocked == 0 && !ad->ad_paused && !ctrl) { assert(avail != 0); int samples = MIN(ad->ad_tile_size, avail); int r; if(ac->ac_deliver_locked != NULL) { r = ac->ac_deliver_locked(ad, samples, ad->ad_pts, ad->ad_epoch); if(r) { hts_cond_wait(&mq->mq_avail, &mp->mp_mutex); continue; } } else { hts_mutex_unlock(&mp->mp_mutex); r = ac->ac_deliver_unlocked(ad, samples, ad->ad_pts, ad->ad_epoch); hts_mutex_lock(&mp->mp_mutex); } if(r) { blocked = 1; } else { ad->ad_pts = AV_NOPTS_VALUE; } continue; } if(ctrl != NULL) { TAILQ_REMOVE(&mq->mq_q_ctrl, ctrl, mb_link); mb = ctrl; } else if(data != NULL && avail < ad->ad_tile_size) { TAILQ_REMOVE(&mq->mq_q_data, data, mb_link); mb = data; } else { hts_cond_wait(&mq->mq_avail, &mp->mp_mutex); continue; } mq->mq_packets_current--; mp->mp_buffer_current -= mb->mb_size; mq_update_stats(mp, mq); hts_cond_signal(&mp->mp_backpressure); if(mb->mb_data_type == MB_CTRL_UNBLOCK) { assert(blocked); blocked = 0; } else if(ad->ad_mode == AUDIO_MODE_CODED && ac->ac_deliver_coded_locked != NULL && mb->mb_data_type == MB_AUDIO) { ac->ac_deliver_coded_locked(ad, mb->mb_data, mb->mb_size, mb->mb_pts, mb->mb_epoch); } else { hts_mutex_unlock(&mp->mp_mutex); switch(mb->mb_data_type) { case MB_AUDIO: audio_process_audio(ad, mb); break; case MB_SET_PROP_STRING: prop_set_string(mb->mb_prop, (void *)mb->mb_data); break; case MB_CTRL_SET_VOLUME_MULTIPLIER: ad->ad_vol_scale = mb->mb_float; if(ac->ac_set_volume != NULL) ac->ac_set_volume(ad, ad->ad_vol_scale); break; case MB_CTRL_PAUSE: ad->ad_paused = 1; if(ac->ac_pause) ac->ac_pause(ad); break; case MB_CTRL_PLAY: ad->ad_paused = 0; if(ac->ac_play) ac->ac_play(ad); break; case MB_CTRL_FLUSH: // Reset some error reporting filters ad->ad_channel_layout_fail = 0; ad->ad_sample_rate_fail = 0; if(ac->ac_flush) ac->ac_flush(ad); ad->ad_pts = AV_NOPTS_VALUE; if(mp->mp_seek_audio_done != NULL) mp->mp_seek_audio_done(mp); ad->ad_discontinuity = 1; if(ad->ad_avr != NULL) { avresample_read(ad->ad_avr, NULL, avresample_available(ad->ad_avr)); assert(avresample_available(ad->ad_avr) == 0); } break; case MB_CTRL_EXIT: run = 0; break; default: abort(); } hts_mutex_lock(&mp->mp_mutex); } media_buf_free_locked(mp, mb); } hts_mutex_unlock(&mp->mp_mutex); if(ac->ac_fini != NULL) ac->ac_fini(ad); return NULL; }
void * audio_decode_thread(void *aux) { audio_decoder_t *ad = aux; const audio_class_t *ac = ad->ad_ac; int run = 1; media_pipe_t *mp = ad->ad_mp; media_queue_t *mq = &mp->mp_audio; media_buf_t *mb; int blocked = 0; if(ac->ac_init != NULL) ac->ac_init(ad); hts_mutex_lock(&mp->mp_mutex); while(run) { int avail = ad->ad_avr != NULL ? avresample_available(ad->ad_avr) : 0; media_buf_t *data = TAILQ_FIRST(&mq->mq_q_data); media_buf_t *ctrl = TAILQ_FIRST(&mq->mq_q_ctrl); if(avail >= ad->ad_tile_size && blocked == 0 && !ad->ad_paused) { assert(avail != 0); assert(ad->ad_avr != NULL); int samples = MIN(ad->ad_tile_size, avail); int r; if(ac->ac_deliver_locked != NULL) { r = ac->ac_deliver_locked(ad, samples, ad->ad_pts, ad->ad_epoch); if(r) { hts_cond_wait(&mq->mq_avail, &mp->mp_mutex); continue; } ad->ad_pts = AV_NOPTS_VALUE; continue; } else { hts_mutex_unlock(&mp->mp_mutex); r = ac->ac_deliver_unlocked(ad, samples, ad->ad_pts, ad->ad_epoch); hts_mutex_lock(&mp->mp_mutex); } if(r) { blocked = 1; continue; } else { ad->ad_pts = AV_NOPTS_VALUE; } continue; } if(ctrl != NULL) { TAILQ_REMOVE(&mq->mq_q_ctrl, ctrl, mb_link); mb = ctrl; } else if(data != NULL && avail < 16384) { TAILQ_REMOVE(&mq->mq_q_data, data, mb_link); mb = data; } else { hts_cond_wait(&mq->mq_avail, &mp->mp_mutex); continue; } mq->mq_packets_current--; mp->mp_buffer_current -= mb->mb_size; mq_update_stats(mp, mq); hts_cond_signal(&mp->mp_backpressure); if(mb->mb_data_type == MB_CTRL_UNBLOCK) { assert(blocked); blocked = 0; } else { hts_mutex_unlock(&mp->mp_mutex); switch(mb->mb_data_type) { case MB_AUDIO: audio_process_audio(ad, mb); break; case MB_CTRL_PAUSE: ad->ad_paused = 1; if(ac->ac_pause) ac->ac_pause(ad); break; case MB_CTRL_PLAY: ad->ad_paused = 0; if(ac->ac_play) ac->ac_play(ad); break; case MB_CTRL_FLUSH: if(ac->ac_flush) ac->ac_flush(ad); ad->ad_pts = AV_NOPTS_VALUE; break; case MB_CTRL_EXIT: run = 0; break; default: abort(); } hts_mutex_lock(&mp->mp_mutex); } media_buf_free_locked(mp, mb); } hts_mutex_unlock(&mp->mp_mutex); if(ac->ac_fini != NULL) ac->ac_fini(ad); return NULL; }