/** * prop_mutex can be held here, so we need to avoid locking it */ void mp_release(media_pipe_t *mp) { if(atomic_dec(&mp->mp_refcount)) return; event_t *e; /* Make sure a clean shutdown has been made */ assert(mp->mp_audio_decoder == NULL); assert(mp != media_primary); if(media_pipe_fini_extra != NULL) media_pipe_fini_extra(mp); while((e = TAILQ_FIRST(&mp->mp_eq)) != NULL) { TAILQ_REMOVE(&mp->mp_eq, e, e_link); event_release(e); } mq_flush(mp, &mp->mp_audio, 1); mq_flush(mp, &mp->mp_video, 1); mq_destroy(&mp->mp_audio); mq_destroy(&mp->mp_video); video_overlay_flush_locked(mp, 0); dvdspu_destroy_all(mp); hts_cond_destroy(&mp->mp_backpressure); hts_mutex_destroy(&mp->mp_mutex); hts_mutex_destroy(&mp->mp_clock_mutex); hts_mutex_destroy(&mp->mp_overlay_mutex); pool_destroy(mp->mp_mb_pool); if(mp->mp_satisfied == 0) atomic_dec(&media_buffer_hungry); cancellable_release(mp->mp_cancellable); /** * We need to destroy mp_prop_root but there is a risk that prop_mutex * is held here, so we need to dispatch */ task_run(mp_final_release, mp); }
/** * Video decoder thread */ static void * vd_thread(void *aux) { video_decoder_t *vd = aux; media_pipe_t *mp = vd->vd_mp; media_queue_t *mq = &mp->mp_video; media_buf_t *mb; media_buf_t *cur = NULL; media_codec_t *mc, *mc_current = NULL; int run = 1; int reqsize = -1; int size; int reinit = 0; const media_buf_meta_t *mbm = NULL; vd->vd_frame = av_frame_alloc(); hts_mutex_lock(&mp->mp_mutex); while(run) { if(mbm != vd->vd_reorder_current) { mbm = vd->vd_reorder_current; hts_mutex_unlock(&mp->mp_mutex); vd->vd_estimated_duration = mbm->mbm_duration; video_decoder_set_current_time(vd, mbm->mbm_pts, mbm->mbm_epoch, mbm->mbm_delta); hts_mutex_lock(&mp->mp_mutex); continue; } media_buf_t *ctrl = TAILQ_FIRST(&mq->mq_q_ctrl); media_buf_t *data = TAILQ_FIRST(&mq->mq_q_data); media_buf_t *aux = TAILQ_FIRST(&mq->mq_q_aux); if(ctrl != NULL) { TAILQ_REMOVE(&mq->mq_q_ctrl, ctrl, mb_link); mb = ctrl; } else if(aux != NULL && aux->mb_pts < vd->vd_subpts + 1000000LL) { if(vd->vd_hold) { hts_cond_wait(&mq->mq_avail, &mp->mp_mutex); continue; } TAILQ_REMOVE(&mq->mq_q_aux, aux, mb_link); mb = aux; } else if(cur != NULL) { if(vd->vd_hold) { hts_cond_wait(&mq->mq_avail, &mp->mp_mutex); continue; } mb = cur; goto retry_current; } else if(data != NULL) { if(vd->vd_hold) { hts_cond_wait(&mq->mq_avail, &mp->mp_mutex); continue; } TAILQ_REMOVE(&mq->mq_q_data, data, mb_link); mp_check_underrun(mp); 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); retry_current: mc = mb->mb_cw; if(mb->mb_data_type == MB_VIDEO && mc->decode_locked != NULL) { if(mc != mc_current) { if(mc_current != NULL) media_codec_deref(mc_current); mc_current = media_codec_ref(mc); prop_set_int(mq->mq_prop_too_slow, 0); } size = mb->mb_size; mq->mq_no_data_interest = 1; if(mc->decode_locked(mc, vd, mq, mb)) { cur = mb; hts_cond_wait(&mq->mq_avail, &mp->mp_mutex); continue; } mq->mq_no_data_interest = 0; cur = NULL; update_vbitrate(mp, mq, size, vd); media_buf_free_locked(mp, mb); continue; } hts_mutex_unlock(&mp->mp_mutex); switch(mb->mb_data_type) { case MB_CTRL_EXIT: run = 0; break; case MB_CTRL_PAUSE: vd->vd_hold = 1; break; case MB_CTRL_PLAY: vd->vd_hold = 0; break; case MB_CTRL_FLUSH: if(cur != NULL) { media_buf_free_unlocked(mp, cur); mq->mq_no_data_interest = 0; cur = NULL; } vd_init_timings(vd); vd->vd_interlaced = 0; hts_mutex_lock(&mp->mp_overlay_mutex); video_overlay_flush_locked(mp, 1); dvdspu_flush_locked(mp); hts_mutex_unlock(&mp->mp_overlay_mutex); mp->mp_video_frame_deliver(NULL, mp->mp_video_frame_opaque); if(mc_current != NULL) { mc_current->flush(mc_current, vd); media_codec_deref(mc_current); mc_current = NULL; } mp->mp_video_frame_deliver(NULL, mp->mp_video_frame_opaque); if(mp->mp_seek_video_done != NULL) mp->mp_seek_video_done(mp); break; case MB_VIDEO: if(mc != mc_current) { if(mc_current != NULL) media_codec_deref(mc_current); mc_current = media_codec_ref(mc); prop_set_int(mq->mq_prop_too_slow, 0); } if(reinit) { if(mc->reinit != NULL) mc->reinit(mc); reinit = 0; } size = mb->mb_size; mc->decode(mc, vd, mq, mb, reqsize); update_vbitrate(mp, mq, size, vd); reqsize = -1; break; case MB_CTRL_REQ_OUTPUT_SIZE: reqsize = mb->mb_data32; break; case MB_CTRL_REINITIALIZE: reinit = 1; break; case MB_CTRL_RECONFIGURE: mb->mb_cw->reconfigure(mc, mb->mb_frame_info); break; #if ENABLE_DVD case MB_DVD_RESET_SPU: hts_mutex_lock(&mp->mp_overlay_mutex); vd->vd_spu_curbut = 1; dvdspu_flush_locked(mp); hts_mutex_unlock(&mp->mp_overlay_mutex); break; case MB_CTRL_DVD_HILITE: vd->vd_spu_curbut = mb->mb_data32; vd->vd_spu_repaint = 1; break; case MB_DVD_PCI: memcpy(&vd->vd_pci, mb->mb_data, sizeof(pci_t)); vd->vd_spu_repaint = 1; event_payload_t *ep = event_create(EVENT_DVD_PCI, sizeof(event_t) + sizeof(pci_t)); memcpy(ep->payload, mb->mb_data, sizeof(pci_t)); mp_enqueue_event(mp, &ep->h); event_release(&ep->h); break; case MB_DVD_CLUT: dvdspu_decode_clut(vd->vd_dvd_clut, (void *)mb->mb_data); break; case MB_DVD_SPU: dvdspu_enqueue(mp, mb->mb_data, mb->mb_size, vd->vd_dvd_clut, 0, 0, mb->mb_pts); break; #endif case MB_CTRL_DVD_SPU2: dvdspu_enqueue(mp, mb->mb_data+72, mb->mb_size-72, (void *)mb->mb_data, ((const uint32_t *)mb->mb_data)[16], ((const uint32_t *)mb->mb_data)[17], mb->mb_pts); break; case MB_SUBTITLE: if(vd->vd_ext_subtitles == NULL && mb->mb_stream == mq->mq_stream2) video_overlay_decode(mp, mb); break; case MB_CTRL_FLUSH_SUBTITLES: hts_mutex_lock(&mp->mp_overlay_mutex); video_overlay_flush_locked(mp, 1); hts_mutex_unlock(&mp->mp_overlay_mutex); break; case MB_CTRL_EXT_SUBTITLE: if(vd->vd_ext_subtitles != NULL) subtitles_destroy(vd->vd_ext_subtitles); // Steal subtitle from the media_buf vd->vd_ext_subtitles = (void *)mb->mb_data; mb->mb_data = NULL; hts_mutex_lock(&mp->mp_overlay_mutex); video_overlay_flush_locked(mp, 1); hts_mutex_unlock(&mp->mp_overlay_mutex); break; default: abort(); } hts_mutex_lock(&mp->mp_mutex); media_buf_free_locked(mp, mb); } if(cur != NULL) media_buf_free_locked(mp, cur); mq->mq_no_data_interest = 0; hts_mutex_unlock(&mp->mp_mutex); if(mc_current != NULL) media_codec_deref(mc_current); if(vd->vd_ext_subtitles != NULL) subtitles_destroy(vd->vd_ext_subtitles); av_frame_free(&vd->vd_frame); return NULL; }