里面牵扯到JCS_RGB,JCS_YCbCr Definition source 1. 00206typedefenum{ 00207JCS_UNKNOWN,/* error/unspecified */ 00208JCS_GRAYSCALE,/* monochrome */ 00209JCS_RGB,/* red/green/blue */ 00210JCS_YCbCr,/* Y/Cb/Cr (also known as YUV) */ 00211JCS_CMYK,/* C/M/Y/K */ 00212JCS_YCCK/* Y...
里面牵扯到JCS_RGB,JCS_YCbCr Definition source 00206 typedef enum { 00207 JCS_UNKNOWN, /* error/unspecified */ 00208 JCS_GRAYSCALE, /* monochrome */ 00209 JCS_RGB, /* red/green/blue */ 00210 JCS_YCbCr, /* Y/Cb/Cr (also known as YUV) */ 00211 JCS_CMYK, /* C/M/Y/K */ 00212...
2:typedefenum{ 3:JCS_UNKNOWN,/* error/unspecified */ 4:JCS_GRAYSCALE,/* monochrome */ 5:JCS_RGB,/* red/green/blue */ 6:JCS_YCbCr,/* Y/Cb/Cr (also known as YUV) */ 7:JCS_CMYK,/* C/M/Y/K */ 8:JCS_YCCK,/* Y/Cb/Cr/K */ 9:#ifdefANDROID_RGB 10:JCS_RGBA_8888,/*...
2:typedefenum{ 3:JCS_UNKNOWN,/* error/unspecified */ 4:JCS_GRAYSCALE,/* monochrome */ 5:JCS_RGB,/* red/green/blue */ 6:JCS_YCbCr,/* Y/Cb/Cr (also known as YUV) */ 7:JCS_CMYK,/* C/M/Y/K */ 8:JCS_YCCK,/* Y/Cb/Cr/K */ 9:#ifdefANDROID_RGB 10:JCS_RGBA_8888,/*...
cinfo.in_color_space = JCS_YCbCr;/* 此处是 YUV444 格式 */cinfo.dct_method = JDCT_FLOAT; jpeg_set_defaults(&cinfo);/* 设置jpeg图像质量,范围 [0,100] */jpeg_set_quality(&cinfo,40,TRUE);/* 开始 */jpeg_start_compress(&cinfo,TRUE);/* 处理数据 */JSAMPROW row_pointer[1];while(...
if(cinfo.jpeg_color_space != JCS_RGB) { if(cinfo.jpeg_color_space == JCS_GRAYSCALE || cinfo.jpeg_color_space == JCS_YCbCr) { cinfo.out_color_space = JCS_RGB; } } else { break; } /* Start decompression jpeg here */
cinfo.jpeg_color_space = JCS_YCbCr; cinfo.comp_info[0].h_samp_factor = 2; cinfo.comp_info[0].v_samp_factor = 2; jpeg_start_compress(&cinfo, TRUE); buffer = (JSAMPIMAGE) (*cinfo.mem->alloc_small)((j_common_ptr) &cinfo, ...
cinfo.jpeg_color_space = JCS_YCbCr;cinfo.comp_info[0].h_samp_factor = 2;cinfo.comp_info[...
JCS_GRAYSCALE, /* monochrome */ JCS_RGB, /* red/green/blue */ JCS_YCbCr, /* Y/Cb/Cr (also known as YUV) */ JCS_CMYK, /* C/M/Y/K */ JCS_YCCK, /* Y/Cb/Cr/K */ #ifdef ANDROID_RGB JCS_RGBA_8888, /* red/green/blue/alpha */ ...
cinfo.in_color_space=JCS_YCbCr; cinfo.dct_method=JDCT_ISLOW; jpeg_set_defaults(&cinfo); jpeg_set_quality(&cinfo,99,TRUE); jpeg_start_compress(&cinfo,TRUE); row_stride=cinfo.image_width*3;/*JSAMPLEs per rowinimage_buffer*/ ...