Method decode

framework/WebAssemblyPlayer/bitStreamDecoder.cpp:75–118

    }

    int bitStreamDecoder::decode(unique_ptr<IAFPacket> &pkt, int index, bool flush)
    {
        int64_t decodeTime;

        if (index == -1 && pkt != nullptr) {
            index = pkt->getInfo().streamIndex;
        }

        if (index < 0) {
            return -EINVAL;
        }

        int ret = 0;
        unique_ptr<IAFFrame> frame{};
        decodeTime = af_gettime_relative();

        do {
            ret = mDecoders[index]->getFrame(frame, 0);

            if (ret == 0) {
                mListener.onFrame(frame.get(), (int) (af_gettime_relative() - decodeTime + mStatisInfo[index].decoderTimeSend));
                mStatisInfo[index].decoderTimeSend = 0;
                mStatisInfo[index].lastFramePTS = frame->getInfo().pts;
//               AF_LOGD("%d pts to %lld\n\n", index, mStatisInfo[index].lastFramePTS);
            }
        } while (ret == 0);

        if (ret == STATUS_EOS) {
            AF_LOGD("EOS\n");
            return ret;
        }

        if (ret < 0 && ret != -EAGAIN) {
            AF_LOGE("decoder error\n");
        }

        if (pkt != nullptr || flush) {
            decodeTime = af_gettime_relative();
            ret = mDecoders[index]->send_packet(pkt, 0);
            mStatisInfo[index].decoderTimeSend = af_gettime_relative() - decodeTime;
        }

        return ret;
    }

    int bitStreamDecoder::readPacket()
    {