struct ff_decoder *ff_decoder_init(AVCodecContext *codec_context,
AVStream *stream, unsigned int packet_queue_size,
unsigned int frame_queue_size)
{
bool success;
assert(codec_context != NULL);
assert(stream != NULL);
struct ff_decoder *decoder = av_mallocz(sizeof(struct ff_decoder));
if (decoder == NULL)
goto fail;
decoder->codec = codec_context;
decoder->codec->opaque = decoder;
decoder->stream = stream;
decoder->abort = false;
decoder->finished = false;
decoder->packet_queue_size = packet_queue_size;
if (!packet_queue_init(&decoder->packet_queue))
goto fail1;
decoder->timer_next_wake = (double)av_gettime() / 1000000.0;
decoder->previous_pts_diff = 40e-3;
decoder->current_pts_time = av_gettime();
decoder->start_pts = 0;
decoder->predicted_pts = 0;
decoder->first_frame = true;
success = ff_timer_init(&decoder->refresh_timer, ff_decoder_refresh,
decoder);
if (!success)
goto fail2;
success = ff_circular_queue_init(&decoder->frame_queue,
sizeof(struct ff_frame), frame_queue_size);
if (!success)
goto fail3;
return decoder;
fail3:
ff_timer_free(&decoder->refresh_timer);
fail2:
packet_queue_free(&decoder->packet_queue);
fail1:
av_free(decoder);
fail:
return NULL;
}
void ff_decoder_free(struct ff_decoder *decoder)
{
void *decoder_thread_result;
int i;
assert(decoder != NULL);
decoder->abort = true;
ff_circular_queue_abort(&decoder->frame_queue);
packet_queue_abort(&decoder->packet_queue);
ff_timer_free(&decoder->refresh_timer);
pthread_join(decoder->decoder_thread, &decoder_thread_result);
for (i = 0; i < decoder->frame_queue.capacity; i++) {
void *item = decoder->frame_queue.slots[i];
struct ff_frame *frame = (struct ff_frame *)item;
ff_callbacks_frame_free(frame, decoder->callbacks);
if (frame != NULL) {
if (frame->frame != NULL)
av_frame_unref(frame->frame);
if (frame->clock != NULL)
ff_clock_release(&frame->clock);
av_free(frame);
}
}
packet_queue_free(&decoder->packet_queue);
ff_circular_queue_free(&decoder->frame_queue);
avcodec_close(decoder->codec);
av_free(decoder);
}
void destroy_server(struct server *srv)
{
conn_queue_free(srv->cq_conn);
packet_queue_free(srv->pq_client);
close_user_chan(srv->ctl_fd);
}
