C++ (Cpp) Put32u示例

示例#1

文件： main.c 项目： jagrutibhadani/Android-Exif-Extended

	void copyThumbnailData(uchar* thumbnailData, int thumbnailLen)
	{
		LOGI("******************************** copyThumbnailData");

		Section_t* ExifSection = FindSection(M_EXIF);

		if (ExifSection == NULL) {
			return;
		}

		int NewExifSize = ImageInfo.ThumbnailOffset+8+thumbnailLen;
		ExifSection->Data = (uchar *)realloc(ExifSection->Data, NewExifSize);

		if (ExifSection->Data == NULL) {
			LOGW("ExifSection->Data = NULL");
			return;
		}

		uchar* ThumbnailPointer = ExifSection->Data+ImageInfo.ThumbnailOffset+8;
		memcpy(ThumbnailPointer, thumbnailData, thumbnailLen);

		ImageInfo.ThumbnailSize = thumbnailLen;

		Put32u(ExifSection->Data+ImageInfo.ThumbnailSizeOffset+8, thumbnailLen);

		ExifSection->Data[0] = (uchar)(NewExifSize >> 8);
		ExifSection->Data[1] = (uchar)NewExifSize;
		ExifSection->Size = NewExifSize;
	}

示例#2

文件： jpgfile.c 项目： CriGio/platform_external_jhead

//--------------------------------------------------------------------------
// Replace or remove exif thumbnail
//--------------------------------------------------------------------------
int ReplaceThumbnailFromBuffer(const char * Thumb, int ThumbLen)
{
    int NewExifSize;
    Section_t * ExifSection;
    uchar * ThumbnailPointer;

    if (ImageInfo.ThumbnailOffset == 0 || ImageInfo.ThumbnailAtEnd == FALSE){
        if (Thumb == NULL){
            // Delete of nonexistent thumbnail (not even pointers present)
            // No action, no error.
            return FALSE;
        }

        // Adding or removing of thumbnail is not possible - that would require rearranging
        // of the exif header, which is risky, and jhad doesn't know how to do.
        fprintf(stderr,"Image contains no thumbnail to replace - add is not possible\n");
#ifdef SUPERDEBUG
        ALOGE("Image contains no thumbnail to replace - add is not possible\n");
#endif
        return FALSE;
    }

    if (Thumb) {
        if (ThumbLen + ImageInfo.ThumbnailOffset > 0x10000-20){
	        //ErrFatal("Thumbnail is too large to insert into exif header");
	        ALOGE("Thumbnail is too large to insert into exif header");
	        return FALSE;
        }
    } else {
        if (ImageInfo.ThumbnailSize == 0){
             return FALSE;
        }

        ThumbLen = 0;
    }

    ExifSection = FindSection(M_EXIF);

    NewExifSize = ImageInfo.ThumbnailOffset+8+ThumbLen;
    ExifSection->Data = (uchar *)realloc(ExifSection->Data, NewExifSize);

    ThumbnailPointer = ExifSection->Data+ImageInfo.ThumbnailOffset+8;

    if (Thumb){
        memcpy(ThumbnailPointer, Thumb, ThumbLen);
    }

    ImageInfo.ThumbnailSize = ThumbLen;

    Put32u(ExifSection->Data+ImageInfo.ThumbnailSizeOffset+8, ThumbLen);

    ExifSection->Data[0] = (uchar)(NewExifSize >> 8);
    ExifSection->Data[1] = (uchar)NewExifSize;
    ExifSection->Size = NewExifSize;

#ifdef SUPERDEBUG
        ALOGE("ReplaceThumbnail successful thumblen %d", ThumbLen);
#endif
    return TRUE;
}

示例#3

文件： jpgfile.c 项目： milankni/cinepaint-oyranos

//--------------------------------------------------------------------------
// Replace or remove exif thumbnail
//--------------------------------------------------------------------------
int ReplaceThumbnail(const char * ThumbFileName)
{
    FILE * ThumbnailFile;
    int ThumbLen, NewExifSize;
    Section_t * ExifSection;
    uchar * ThumbnailPointer;

    if (ImageInfo.ThumbnailOffset == 0 || ImageInfo.ThumbnailAtEnd == FALSE){
        // Adding or removing of thumbnail is not possible - that would require rearranging
        // of the exif header, which is risky, and jhad doesn't know how to do.

        printf("Image contains no thumbnail to replace - add is not possible\n");
        return FALSE;
    }

    if (ThumbFileName){
        ThumbnailFile = fopen(ThumbFileName,"rb");

        if (ThumbnailFile == NULL){
            ErrFatal("Could not read thumbnail file");
            return FALSE;
        }

        // get length
        fseek(ThumbnailFile, 0, SEEK_END);

        ThumbLen = ftell(ThumbnailFile);
        fseek(ThumbnailFile, 0, SEEK_SET);

        if (ThumbLen + ImageInfo.ThumbnailOffset > 0x10000-20){
            ErrFatal("Thumbnail is too large to insert into exif header");
        }
    }else{
        ThumbLen = 0;
        ThumbnailFile = NULL;
    }

    ExifSection = FindSection(M_EXIF);

    NewExifSize = ImageInfo.ThumbnailOffset+8+ThumbLen;
    ExifSection->Data = (uchar *)realloc(ExifSection->Data, NewExifSize);

    ThumbnailPointer = ExifSection->Data+ImageInfo.ThumbnailOffset+8;

    if (ThumbnailFile){
        fread(ThumbnailPointer, ThumbLen, 1, ThumbnailFile);
        fclose(ThumbnailFile);
    }

    ImageInfo.ThumbnailSize = ThumbLen;

    Put32u(ExifSection->Data+ImageInfo.ThumbnailSizeOffset+8, ThumbLen);

    ExifSection->Data[0] = (uchar)(NewExifSize >> 8);
    ExifSection->Data[1] = (uchar)NewExifSize;
    ExifSection->Size = NewExifSize;

    return TRUE;
}