* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
*/
#include "avcodec.h"
#include "rle.h"
const uint8_t *pos;
int count = 1;
- for(pos = start + bpp; count < FFMIN(128, len); pos += bpp, count ++) {
+ for(pos = start + bpp; count < FFMIN(127, len); pos += bpp, count ++) {
if(same != !memcmp(pos-bpp, pos, bpp)) {
if(!same) {
/* if bpp == 1, then 0 1 1 0 is more efficiently encoded as a single
* raw block of pixels. for larger bpp, RLE is as good or better */
- if(bpp == 1 && count + 1 < FFMIN(128, len) && *pos != *(pos+1))
+ if(bpp == 1 && count + 1 < FFMIN(127, len) && *pos != *(pos+1))
continue;
/* if RLE can encode the next block better than as a raw block,
}
int ff_rle_encode(uint8_t *outbuf, int out_size, const uint8_t *ptr , int bpp, int w,
- int8_t add_rep, uint8_t xor_rep,int8_t add_raw,uint8_t xor_raw)
+ int add_rep, int xor_rep, int add_raw, int xor_raw)
{
int count, x;
uint8_t *out = outbuf;
} else {
/* fall back on uncompressed */
count = count_pixels(ptr, w-x, bpp, 0);
+ if(out + bpp*count >= outbuf + out_size) return -1;
*out++ = (count ^ xor_raw) + add_raw;
- if(out + bpp*count > outbuf + out_size) return -1;
memcpy(out, ptr, bpp * count);
out += bpp * count;
}