[FFmpeg-cvslog] motion_est: make MotionExtContext.map_generation unsigned
Mans Rullgard
git at videolan.org
Mon Mar 19 05:30:40 CET 2012
ffmpeg | branch: release/0.8 | Mans Rullgard <mans at mansr.com> | Sun Oct 9 20:18:34 2011 +0100| [da73a2005aa4fbea03226eadbb4a1afd1d860cca] | committer: Reinhard Tartler
motion_est: make MotionExtContext.map_generation unsigned
The way this value is used, it should be an unsigned type.
While the numerical value has no meaning, unsigned wraparound
is relied upon.
Signed-off-by: Mans Rullgard <mans at mansr.com>
(cherry picked from commit cb668476ab1343d27e03edc0b32f57ca7a187471)
Signed-off-by: Anton Khirnov <anton at khirnov.net>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=da73a2005aa4fbea03226eadbb4a1afd1d860cca
---
libavcodec/motion_est.c | 2 +-
libavcodec/motion_est_template.c | 36 ++++++++++++++++++------------------
libavcodec/mpegvideo.h | 2 +-
3 files changed, 20 insertions(+), 20 deletions(-)
diff --git a/libavcodec/motion_est.c b/libavcodec/motion_est.c
index 72184ed..cabff8b 100644
--- a/libavcodec/motion_est.c
+++ b/libavcodec/motion_est.c
@@ -52,7 +52,7 @@ static inline int sad_hpel_motion_search(MpegEncContext * s,
int src_index, int ref_index,
int size, int h);
-static inline int update_map_generation(MotionEstContext *c)
+static inline unsigned update_map_generation(MotionEstContext *c)
{
c->map_generation+= 1<<(ME_MAP_MV_BITS*2);
if(c->map_generation==0){
diff --git a/libavcodec/motion_est_template.c b/libavcodec/motion_est_template.c
index d65edd9..d104954 100644
--- a/libavcodec/motion_est_template.c
+++ b/libavcodec/motion_est_template.c
@@ -158,8 +158,8 @@ static int hpel_motion_search(MpegEncContext * s,
const int b= score_map[(index+(1<<ME_MAP_SHIFT))&(ME_MAP_SIZE-1)]
+ (mv_penalty[bx - pred_x] + mv_penalty[by+2 - pred_y])*c->penalty_factor;
- int key;
- int map_generation= c->map_generation;
+ unsigned key;
+ unsigned map_generation= c->map_generation;
#ifndef NDEBUG
uint32_t *map= c->map;
#endif
@@ -278,7 +278,7 @@ static int qpel_motion_search(MpegEncContext * s,
const int mx = *mx_ptr;
const int my = *my_ptr;
const int penalty_factor= c->sub_penalty_factor;
- const int map_generation= c->map_generation;
+ const unsigned map_generation = c->map_generation;
const int subpel_quality= c->avctx->me_subpel_quality;
uint32_t *map= c->map;
me_cmp_func cmpf, chroma_cmpf;
@@ -495,7 +495,7 @@ static int qpel_motion_search(MpegEncContext * s,
#define CHECK_MV(x,y)\
{\
- const int key= ((y)<<ME_MAP_MV_BITS) + (x) + map_generation;\
+ const unsigned key = ((y)<<ME_MAP_MV_BITS) + (x) + map_generation;\
const int index= (((y)<<ME_MAP_SHIFT) + (x))&(ME_MAP_SIZE-1);\
assert((x) >= xmin);\
assert((x) <= xmax);\
@@ -523,7 +523,7 @@ static int qpel_motion_search(MpegEncContext * s,
#define CHECK_MV_DIR(x,y,new_dir)\
{\
- const int key= ((y)<<ME_MAP_MV_BITS) + (x) + map_generation;\
+ const unsigned key = ((y)<<ME_MAP_MV_BITS) + (x) + map_generation;\
const int index= (((y)<<ME_MAP_SHIFT) + (x))&(ME_MAP_SIZE-1);\
/*printf("check_mv_dir %d %d %d\n", x, y, new_dir);*/\
if(map[index]!=key){\
@@ -561,13 +561,13 @@ static av_always_inline int small_diamond_search(MpegEncContext * s, int *best,
int next_dir=-1;
LOAD_COMMON
LOAD_COMMON2
- int map_generation= c->map_generation;
+ unsigned map_generation = c->map_generation;
cmpf= s->dsp.me_cmp[size];
chroma_cmpf= s->dsp.me_cmp[size+1];
{ /* ensure that the best point is in the MAP as h/qpel refinement needs it */
- const int key= (best[1]<<ME_MAP_MV_BITS) + best[0] + map_generation;
+ const unsigned key = (best[1]<<ME_MAP_MV_BITS) + best[0] + map_generation;
const int index= ((best[1]<<ME_MAP_SHIFT) + best[0])&(ME_MAP_SIZE-1);
if(map[index]!=key){ //this will be executed only very rarey
score_map[index]= cmp(s, best[0], best[1], 0, 0, size, h, ref_index, src_index, cmpf, chroma_cmpf, flags);
@@ -603,7 +603,7 @@ static int funny_diamond_search(MpegEncContext * s, int *best, int dmin,
int dia_size;
LOAD_COMMON
LOAD_COMMON2
- int map_generation= c->map_generation;
+ unsigned map_generation = c->map_generation;
cmpf= s->dsp.me_cmp[size];
chroma_cmpf= s->dsp.me_cmp[size+1];
@@ -644,7 +644,7 @@ static int hex_search(MpegEncContext * s, int *best, int dmin,
me_cmp_func cmpf, chroma_cmpf;
LOAD_COMMON
LOAD_COMMON2
- int map_generation= c->map_generation;
+ unsigned map_generation = c->map_generation;
int x,y,d;
const int dec= dia_size & (dia_size-1);
@@ -678,7 +678,7 @@ static int l2s_dia_search(MpegEncContext * s, int *best, int dmin,
me_cmp_func cmpf, chroma_cmpf;
LOAD_COMMON
LOAD_COMMON2
- int map_generation= c->map_generation;
+ unsigned map_generation = c->map_generation;
int x,y,i,d;
int dia_size= c->dia_size&0xFF;
const int dec= dia_size & (dia_size-1);
@@ -716,7 +716,7 @@ static int umh_search(MpegEncContext * s, int *best, int dmin,
me_cmp_func cmpf, chroma_cmpf;
LOAD_COMMON
LOAD_COMMON2
- int map_generation= c->map_generation;
+ unsigned map_generation = c->map_generation;
int x,y,x2,y2, i, j, d;
const int dia_size= c->dia_size&0xFE;
static const int hex[16][2]={{-4,-2}, {-4,-1}, {-4, 0}, {-4, 1}, {-4, 2},
@@ -763,7 +763,7 @@ static int full_search(MpegEncContext * s, int *best, int dmin,
me_cmp_func cmpf, chroma_cmpf;
LOAD_COMMON
LOAD_COMMON2
- int map_generation= c->map_generation;
+ unsigned map_generation = c->map_generation;
int x,y, d;
const int dia_size= c->dia_size&0xFF;
@@ -792,7 +792,7 @@ static int full_search(MpegEncContext * s, int *best, int dmin,
#define SAB_CHECK_MV(ax,ay)\
{\
- const int key= ((ay)<<ME_MAP_MV_BITS) + (ax) + map_generation;\
+ const unsigned key = ((ay)<<ME_MAP_MV_BITS) + (ax) + map_generation;\
const int index= (((ay)<<ME_MAP_SHIFT) + (ax))&(ME_MAP_SIZE-1);\
/*printf("sab check %d %d\n", ax, ay);*/\
if(map[index]!=key){\
@@ -831,7 +831,7 @@ static int sab_diamond_search(MpegEncContext * s, int *best, int dmin,
int i, j;
LOAD_COMMON
LOAD_COMMON2
- int map_generation= c->map_generation;
+ unsigned map_generation = c->map_generation;
cmpf= s->dsp.me_cmp[size];
chroma_cmpf= s->dsp.me_cmp[size+1];
@@ -916,7 +916,7 @@ static int var_diamond_search(MpegEncContext * s, int *best, int dmin,
int dia_size;
LOAD_COMMON
LOAD_COMMON2
- int map_generation= c->map_generation;
+ unsigned map_generation = c->map_generation;
cmpf= s->dsp.me_cmp[size];
chroma_cmpf= s->dsp.me_cmp[size+1];
@@ -1008,7 +1008,7 @@ static av_always_inline int epzs_motion_search_internal(MpegEncContext * s, int
int d; ///< the score (cmp + penalty) of any given mv
int dmin; /*!< the best value of d, i.e. the score
corresponding to the mv stored in best[]. */
- int map_generation;
+ unsigned map_generation;
int penalty_factor;
const int ref_mv_stride= s->mb_stride; //pass as arg FIXME
const int ref_mv_xy= s->mb_x + s->mb_y*ref_mv_stride; //add to last_mv beforepassing FIXME
@@ -1136,7 +1136,7 @@ static int epzs_motion_search4(MpegEncContext * s,
MotionEstContext * const c= &s->me;
int best[2]={0, 0};
int d, dmin;
- int map_generation;
+ unsigned map_generation;
const int penalty_factor= c->penalty_factor;
const int size=1;
const int h=8;
@@ -1196,7 +1196,7 @@ static int epzs_motion_search2(MpegEncContext * s,
MotionEstContext * const c= &s->me;
int best[2]={0, 0};
int d, dmin;
- int map_generation;
+ unsigned map_generation;
const int penalty_factor= c->penalty_factor;
const int size=0; //FIXME pass as arg
const int h=8;
diff --git a/libavcodec/mpegvideo.h b/libavcodec/mpegvideo.h
index 0fc32b9..e7ab58f 100644
--- a/libavcodec/mpegvideo.h
+++ b/libavcodec/mpegvideo.h
@@ -153,7 +153,7 @@ typedef struct MotionEstContext{
int best_bits;
uint32_t *map; ///< map to avoid duplicate evaluations
uint32_t *score_map; ///< map to store the scores
- int map_generation;
+ unsigned map_generation;
int pre_penalty_factor;
int penalty_factor; /*!< an estimate of the bits required to
code a given mv value, e.g. (1,0) takes
More information about the ffmpeg-cvslog
mailing list