unsigned w1, h1;
unsigned w2, h2;
+ /* Sampling factors */
+ unsigned samp_h0, samp_v0;
+ unsigned samp_h1, samp_v1;
+ unsigned samp_h2, samp_v2;
+
/* The data itself */
JSAMPLE *data_y, *data_cb, *data_cr;
} qscale_img;
enum qscale_jpeg_mode {
SEQUENTIAL = 0,
- PROGRESSIVE = 1
};
qscale_img *qscale_load_jpeg(const char *filename);
qscale_img *qscale_load_jpeg_from_stdio(FILE *file);
int qscale_save_jpeg(const qscale_img *img, const char *filename, unsigned jpeg_quality, enum qscale_jpeg_mode jpeg_mode);
+int qscale_save_jpeg_to_stdio(const qscale_img *img, FILE *file, unsigned jpeg_quality, enum qscale_jpeg_mode jpeg_mode);
qscale_img *qscale_scale(qscale_img *src, unsigned width, unsigned height, unsigned samp_h0, unsigned samp_v0, unsigned samp_h1, unsigned samp_v1, unsigned samp_h2, unsigned samp_v2, enum qscale_scaling_filter scaling_filter);
void qscale_destroy(qscale_img *img);