Merge "Avoid MTP open binder call to MediaProvider" into sc-dev am: 0d0a5832

    struct stat sstat;

    uint64_t finalsize;

    bool transcode = android::base::GetBoolProperty("sys.fuse.transcode_mtp", false);

    bool filePathAccess = true;

    ALOGD("Mtp transcode = %d", transcode);

    mfr.fd = mDatabase->openFilePath(filePath, transcode);

    // Doing this here because we want to update fileLength only for this case and leave the

    // regular path as unchanged as possible.

    if (mfr.fd >= 0) {

    // For performance reasons, only attempt a ContentResolver open when transcode is required.

    // This is fine as long as we don't transcode by default on the device. If we suddenly

    // transcode by default, we'll need to ensure that MTP doesn't transcode by default and we

    // might need to make a binder call to avoid transcoding or come up with a better strategy.

    if (transcode) {

        mfr.fd = mDatabase->openFilePath(filePath, true);

        fstat(mfr.fd, &sstat);

        finalsize = sstat.st_size;

        fileLength = finalsize;

    } else {

        if (mfr.fd < 0) {

            ALOGW("Mtp open via IMtpDatabase failed for %s. Falling back to the original",

                  filePath);

            filePathAccess = true;

        } else {

            filePathAccess = false;

        }

    }

    if (filePathAccess) {

        mfr.fd = open(filePath, O_RDONLY);

        if (mfr.fd < 0) {

            return MTP_RESPONSE_GENERAL_ERROR;