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ffmpeg: notify when the thread message queue blocks.
This can help finding the source of A-V desync with live input.
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parent
508d6a23b4
commit
d92c6d82c0
11
ffmpeg.c
11
ffmpeg.c
@ -3356,6 +3356,7 @@ static int check_keyboard_interaction(int64_t cur_time)
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static void *input_thread(void *arg)
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{
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InputFile *f = arg;
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unsigned flags = f->non_blocking ? AV_THREAD_MESSAGE_NONBLOCK : 0;
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int ret = 0;
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while (1) {
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@ -3371,7 +3372,15 @@ static void *input_thread(void *arg)
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break;
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}
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av_dup_packet(&pkt);
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ret = av_thread_message_queue_send(f->in_thread_queue, &pkt, 0);
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ret = av_thread_message_queue_send(f->in_thread_queue, &pkt, flags);
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if (flags && ret == AVERROR(EAGAIN)) {
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flags = 0;
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ret = av_thread_message_queue_send(f->in_thread_queue, &pkt, flags);
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av_log(f->ctx, AV_LOG_WARNING,
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"Thread message queue blocking; consider raising the "
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"thread_queue_size option (current value: %d)\n",
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f->thread_queue_size);
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}
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if (ret < 0) {
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if (ret != AVERROR_EOF)
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av_log(f->ctx, AV_LOG_ERROR,
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