Merge "Don't fail read when "seeking" to current position"

        MediaBuffer **out, const ReadOptions *options) {

    *out = NULL;

    int64_t seekTimeUs;

    ReadOptions::SeekMode seekMode;

    if (mSeekable && options && options->getSeekTo(&seekTimeUs, &seekMode)) {

        return ERROR_UNSUPPORTED;

    }

    status_t finalResult;

    while (!mImpl->hasBufferAvailable(&finalResult)) {

        if (finalResult != OK) {

        }

    }

    int64_t seekTimeUs;

    ReadOptions::SeekMode seekMode;

    if (mSeekable && options && options->getSeekTo(&seekTimeUs, &seekMode)) {

        // A seek was requested, but we don't actually support seeking and so can only "seek" to

        // the current position

        int64_t nextBufTimeUs;

        if (mImpl->nextBufferTime(&nextBufTimeUs) != OK || seekTimeUs != nextBufTimeUs) {

            return ERROR_UNSUPPORTED;

        }

    }

    return mImpl->read(out, options);

}