Merge "transcoder: sleep before signal EOS" into main

    if (bufferInfo.flags & AMEDIACODEC_BUFFER_FLAG_END_OF_STREAM) {

        LOG(DEBUG) << "EOS from decoder.";

        // NOTE - b/360057459

        // There is a synchronization problem between feeding the frame to the encoder input surface

        // and signaling end of stream.

        // Waiting before signaling end of stream so that input surface has time to feed remaining

        // frames to the encoder.

        std::this_thread::sleep_for(std::chrono::milliseconds(10));

        media_status_t status = AMediaCodec_signalEndOfInputStream(mEncoder->getCodec());

        if (status != AMEDIA_OK) {

            LOG(ERROR) << "SignalEOS on encoder returned error: " << status;