C++ (Cpp) get_camera_metadata_data_count Examples

Example #1

File: CameraMetadata.cpp Project: AOSP-JF/platform_frameworks_av

status_t CameraMetadata::append(const camera_metadata_t* other) {
    if (mLocked) {
        ALOGE("%s: CameraMetadata is locked", __FUNCTION__);
        return INVALID_OPERATION;
    }
    size_t extraEntries = get_camera_metadata_entry_count(other);
    size_t extraData = get_camera_metadata_data_count(other);
    resizeIfNeeded(extraEntries, extraData);

    return append_camera_metadata(mBuffer, other);
}

Example #2

File: CameraMetadata.cpp Project: 3dsfr3ak/android_frameworks_av

status_t CameraMetadata::resizeIfNeeded(size_t extraEntries, size_t extraData) {
    if (mBuffer == NULL) {
        mBuffer = allocate_camera_metadata(extraEntries * 2, extraData * 2);
        if (mBuffer == NULL) {
            ALOGE("%s: Can't allocate larger metadata buffer", __FUNCTION__);
            return NO_MEMORY;
        }
    } else {
        size_t currentEntryCount = get_camera_metadata_entry_count(mBuffer);
        size_t currentEntryCap = get_camera_metadata_entry_capacity(mBuffer);
        size_t newEntryCount = currentEntryCount +
                extraEntries;
        newEntryCount = (newEntryCount > currentEntryCap) ?
                newEntryCount * 2 : currentEntryCap;

        size_t currentDataCount = get_camera_metadata_data_count(mBuffer);
        size_t currentDataCap = get_camera_metadata_data_capacity(mBuffer);
        size_t newDataCount = currentDataCount +
                extraData;
        newDataCount = (newDataCount > currentDataCap) ?
                newDataCount * 2 : currentDataCap;

        if (newEntryCount > currentEntryCap ||
                newDataCount > currentDataCap) {
            camera_metadata_t *oldBuffer = mBuffer;
            mBuffer = allocate_camera_metadata(newEntryCount,
                    newDataCount);
            if (mBuffer == NULL) {
                ALOGE("%s: Can't allocate larger metadata buffer", __FUNCTION__);
                return NO_MEMORY;
            }
            append_camera_metadata(mBuffer, oldBuffer);
            free_camera_metadata(oldBuffer);
        }
    }
    return OK;
}