Method RefillFifoQueue

src/plugins/ffmpegdecoder/FfmpegDecoder.cpp:574–614

}

bool FfmpegDecoder::RefillFifoQueue() {
    bool sentAtLeastOnePacket = false;
    bool readFailed = false;
    int fifoSize = av_audio_fifo_size(this->outputFifo);
    while (!readFailed && fifoSize < this->preferredFrameSize) {
        AVPacket packet;
        memset(&packet, 0, sizeof(AVPacket));
        packet.pts = AV_NOPTS_VALUE;
        packet.dts = AV_NOPTS_VALUE;
        packet.pos = -1;
        int error = av_read_frame(this->formatContext, &packet);

        if (error >= 0) {
            /* note that sometimes decoders seem to return packets that are
            invalid. this can be observed when playing wav files that have
            album art metadata, but may happen in other cases. if we detect
            an invalid packet, simply discard it and get the next one. to make
            things worse, some decoders (e.g. APE) always return packets in this
            state. we're missing something, somewhere during codec init probably,
            but after hours of messing around I can't figure it out. if you
            are reading this comment and have any ideas, please let me know. */
            if (packet.pos == -1 &&
                packet.duration <= 1 &&
                !this->disableInvalidPacketDetection)
            {
                logError("invalid packet detected, discarding.");
            }
            else {
                sentAtLeastOnePacket = this->ReadSendAndReceivePacket(&packet);
            }
        }
        else {
            logAvError("av_read_frame", error);
            readFailed = true;
        }

        av_packet_unref(&packet);
        fifoSize = av_audio_fifo_size(this->outputFifo);
    }
    return sentAtLeastOnePacket;
}

bool FfmpegDecoder::ReadFromFifoAndWriteToBuffer(IBuffer* buffer) {
    int error = 0;