Function UpdatePlayer

Source/Engine/Video/Android/VideoBackendAndroid.cpp:245–327

    }

    void UpdatePlayer(int32 index)
    {
        PROFILE_CPU();
        auto& player = *Players[index];
        ZoneText(player.DebugUrl, player.DebugUrlLen);
        auto& playerAndroid = player.GetBackendState<VideoPlayerAndroid>();

        // Skip paused player
        if (!playerAndroid.Playing || (playerAndroid.InputEnded && playerAndroid.OutputEnded))
            return;
        media_status_t status;
        ssize_t bufferIndex;

        // Get current sample info
        int64_t presentationTimeUs = AMediaExtractor_getSampleTime(playerAndroid.Extractor);
        int trackIndex = AMediaExtractor_getSampleTrackIndex(playerAndroid.Extractor);
        if (trackIndex < 0)
        {
#if VIDEO_API_ANDROID_DEBUG
            LOG(Info, "[VideoBackendAndroid] Samples track ended");
#endif
            if (playerAndroid.Loop)
            {
                // Loop
                status = AMediaExtractor_seekTo(playerAndroid.Extractor, 0, AMEDIAEXTRACTOR_SEEK_CLOSEST_SYNC);
                if (status != AMEDIA_OK)
                {
                    VIDEO_API_ANDROID_ERROR(AMediaExtractor_seekTo, status);
                }
                if (playerAndroid.VideoCodec)
                    AMediaCodec_flush(playerAndroid.VideoCodec);
                if (playerAndroid.AudioCodec)
                    AMediaCodec_flush(playerAndroid.VideoCodec);
            }
            else
            {
                // Emd
                playerAndroid.InputEnded = playerAndroid.OutputEnded = 1;
            }
        }
        else if (trackIndex == playerAndroid.VideoTrackIndex || trackIndex == playerAndroid.AudioTrackIndex)
        {
            auto codec = trackIndex == playerAndroid.VideoTrackIndex ? playerAndroid.VideoCodec : playerAndroid.AudioCodec;

            // Process input buffer
            bufferIndex = AMediaCodec_dequeueInputBuffer(codec, 2000);
            if (bufferIndex >= 0)
            {
                size_t bufferSize;
                uint8_t* buffer = AMediaCodec_getInputBuffer(codec, bufferIndex, &bufferSize);
                ssize_t sampleSize = AMediaExtractor_readSampleData(playerAndroid.Extractor, buffer, bufferSize);
                uint32_t queueInputFlags = 0;
                if (sampleSize < 0)
                {
                    queueInputFlags |= AMEDIACODEC_BUFFER_FLAG_END_OF_STREAM;
                    sampleSize = 0;
                }
                status = AMediaCodec_queueInputBuffer(codec, bufferIndex, 0, sampleSize, presentationTimeUs, queueInputFlags);