Merge "CCodec: bypass crypto / descrambler if input is empty" into rvc-dev am:...

    ssize_t result = -1;

    ssize_t codecDataOffset = 0;

    if (mCrypto != nullptr) {

    if (numSubSamples == 1

            && subSamples[0].mNumBytesOfClearData == 0

            && subSamples[0].mNumBytesOfEncryptedData == 0) {

        // We don't need to go through crypto or descrambler if the input is empty.

        result = 0;

    } else if (mCrypto != nullptr) {

        hardware::drm::V1_0::DestinationBuffer destination;

        if (secure) {

            destination.type = DrmBufferType::NATIVE_HANDLE;

                key, iv, mode, pattern, source, buffer->offset(),

                subSamples, numSubSamples, destination, errorDetailMsg);

        if (result < 0) {

            ALOGI("[%s] decrypt failed: result=%zd", mName, result);

            return result;

        }

        if (destination.type == DrmBufferType::SHARED_MEMORY) {