* 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
- *
*/
/**
z_stream zstream;
} ZmbvEncContext;
+static int score_tab[256];
+
/** Block comparing function
* XXX should be optimized and moved to DSPContext
* TODO handle out of edge ME
{
int sum = 0;
int i, j;
+ uint8_t histogram[256]={0};
for(j = 0; j < bh; j++){
for(i = 0; i < bw; i++)
- sum += src[i] ^ src2[i];
+ histogram[src[i] ^ src2[i]]++;
src += stride;
src2 += stride2;
}
+
+ for(i=1; i<256; i++)
+ sum+= score_tab[histogram[i]];
+
return sum;
}
/**
* Init zmbv encoder
*/
-static int encode_init(AVCodecContext *avctx)
+static av_cold int encode_init(AVCodecContext *avctx)
{
ZmbvEncContext * const c = avctx->priv_data;
int zret; // Zlib return code
+ int i;
int lvl = 9;
+ for(i=1; i<256; i++)
+ score_tab[i]= -i * log(i/(double)(ZMBV_BLOCK*ZMBV_BLOCK)) * (256/M_LN2);
+
c->avctx = avctx;
c->pic.data[0] = NULL;
return -1;
}
+ avctx->coded_frame = (AVFrame*)&c->pic;
+
return 0;
}
/**
* Uninit zmbv encoder
*/
-static int encode_end(AVCodecContext *avctx)
+static av_cold int encode_end(AVCodecContext *avctx)
{
ZmbvEncContext * const c = avctx->priv_data;
encode_init,
encode_frame,
encode_end,
- .pix_fmts = (enum PixelFormat[]){PIX_FMT_PAL8, -1},
+ .pix_fmts = (enum PixelFormat[]){PIX_FMT_PAL8, PIX_FMT_NONE},
+ .long_name = NULL_IF_CONFIG_SMALL("Zip Motion Blocks Video"),
};