[완료]raw rgb 16 bit 를 jpeg 로 변환하기

FILE *fp = fopen("xxx.jpg", "w");
struct jpeg_compress_struct cinfo;
struct error_handler_data jerr;
cinfo.err = jpeg_std_error(&jerr.pub);
 
jpeg_create_compress(&cinfo);
jpeg_stdio_dest(&cinfo, fp);
cinfo.image_width = width;
cinfo.image_height = height;
cinfo.input_components = 3;
cinfo.in_color_space = JCS_RGB;
jpeg_set_defaults(&cinfo);
int quality = 80;
jpeg_set_quality(&cinfo, quality, TRUE);
jpeg_start_compress(&cinfo, TRUE);
JSAMPROW lines[16];
uint8_t * pixdata[width * 16 * 3];
int y = 0;
uint8_t * src = (uint8_t *)srcbuf /* 24bit rgb buffer */
while (y < height) {
  int i;
  for (i=0;i<16 && y < height; i++, y++) {
    uint8_t *p = pixdata + i *width *3;
    lines[i] = p;
    int x;
    for (x=0; x<width; x++) {
       *p++ = *src++;
       *p++ = *src++;
       *p++ = *src++;
       src++;
    }
    jpeg_write_scanlines(&cinfo, lines, i);
}
jpeg_finish_compress(&cinfo);
jpeg_destroy_compress(&cinfo);
fclose(fp);