summaryrefslogtreecommitdiff
path: root/libavcodec/zmbvenc.c
diff options
context:
space:
mode:
authorAnton Khirnov <anton@khirnov.net>2016-05-22 21:09:58 +0200
committerAnton Khirnov <anton@khirnov.net>2017-01-19 09:52:10 +0100
commit296eff4d9dc53d441b672319524a051d04f4a8cf (patch)
tree90636985f48150b654b8bdd08451aacc2a318496 /libavcodec/zmbvenc.c
parent00b775dda2b3f78ae60ff3278d3b3d6545883a83 (diff)
downloadffmpeg-296eff4d9dc53d441b672319524a051d04f4a8cf.tar.gz
zmbvenc: get rid of a global table
Diffstat (limited to 'libavcodec/zmbvenc.c')
-rw-r--r--libavcodec/zmbvenc.c16
1 files changed, 9 insertions, 7 deletions
diff --git a/libavcodec/zmbvenc.c b/libavcodec/zmbvenc.c
index 4436bb3c51..e7b39f41c7 100644
--- a/libavcodec/zmbvenc.c
+++ b/libavcodec/zmbvenc.c
@@ -54,16 +54,18 @@ typedef struct ZmbvEncContext {
int comp_size;
int keyint, curfrm;
z_stream zstream;
+
+ int score_tab[256];
} ZmbvEncContext;
-static int score_tab[256];
/** Block comparing function
* XXX should be optimized and moved to DSPContext
* TODO handle out of edge ME
*/
-static inline int block_cmp(uint8_t *src, int stride, uint8_t *src2, int stride2,
- int bw, int bh, int *xored)
+static inline int block_cmp(ZmbvEncContext *c, uint8_t *src, int stride,
+ uint8_t *src2, int stride2, int bw, int bh,
+ int *xored)
{
int sum = 0;
int i, j;
@@ -81,7 +83,7 @@ static inline int block_cmp(uint8_t *src, int stride, uint8_t *src2, int stride2
}
for(i = 1; i < 256; i++)
- sum += score_tab[histogram[i]];
+ sum += c->score_tab[histogram[i]];
return sum;
}
@@ -97,14 +99,14 @@ static int zmbv_me(ZmbvEncContext *c, uint8_t *src, int sstride, uint8_t *prev,
*mx = *my = 0;
bw = FFMIN(ZMBV_BLOCK, c->avctx->width - x);
bh = FFMIN(ZMBV_BLOCK, c->avctx->height - y);
- bv = block_cmp(src, sstride, prev, pstride, bw, bh, xored);
+ bv = block_cmp(c, src, sstride, prev, pstride, bw, bh, xored);
if(!bv) return 0;
for(ty = FFMAX(y - c->range, 0); ty < FFMIN(y + c->range, c->avctx->height - bh); ty++){
for(tx = FFMAX(x - c->range, 0); tx < FFMIN(x + c->range, c->avctx->width - bw); tx++){
if(tx == x && ty == y) continue; // we already tested this block
dx = tx - x;
dy = ty - y;
- tv = block_cmp(src, sstride, prev + dx + dy*pstride, pstride, bw, bh, xored);
+ tv = block_cmp(c, src, sstride, prev + dx + dy * pstride, pstride, bw, bh, xored);
if(tv < bv){
bv = tv;
*mx = dx;
@@ -279,7 +281,7 @@ static av_cold int encode_init(AVCodecContext *avctx)
int lvl = 9;
for(i=1; i<256; i++)
- score_tab[i]= -i * log(i/(double)(ZMBV_BLOCK*ZMBV_BLOCK)) * (256/M_LN2);
+ c->score_tab[i] = -i * log(i / (double)(ZMBV_BLOCK * ZMBV_BLOCK)) * (256 / M_LN2);
c->avctx = avctx;