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avcodec/motion_est: Constify pointers to frame data

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Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2022-07-26 08:36:11 +02:00
parent 209a11053f
commit 34276b815b
2 changed files with 19 additions and 16 deletions
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31
libavcodec/motion_est.c
View File

@ -79,7 +79,10 @@ static int minima_cmp(const void *a, const void *b){
#define FLAG_CHROMA 2
#define FLAG_DIRECT 4
static inline void init_ref(MotionEstContext *c, uint8_t *src[3], uint8_t *ref[3], uint8_t *ref2[3], int x, int y, int ref_index){
static inline void init_ref(MotionEstContext *c, uint8_t *const src[3],
uint8_t *const ref[3], uint8_t *const ref2[3],
int x, int y, int ref_index)
{
const int offset[3]= {
y*c-> stride + x,
((y*c->uvstride + x)>>1),
@ -110,8 +113,8 @@ static av_always_inline int cmp_direct_inline(MpegEncContext *s, const int x, co
const int stride= c->stride;
const int hx = subx + x * (1 << (1 + qpel));
const int hy = suby + y * (1 << (1 + qpel));
uint8_t * const * const ref= c->ref[ref_index];
uint8_t * const * const src= c->src[src_index];
const uint8_t * const * const ref = c->ref[ref_index];
const uint8_t * const * const src = c->src[src_index];
int d;
//FIXME check chroma 4mv, (no crashes ...)
av_assert2(x >= c->xmin && hx <= c->xmax<<(qpel+1) && y >= c->ymin && hy <= c->ymax<<(qpel+1));
@ -184,8 +187,8 @@ static av_always_inline int cmp_inline(MpegEncContext *s, const int x, const int
const int dxy= subx + (suby<<(1+qpel)); //FIXME log2_subpel?
const int hx= subx + x*(1<<(1+qpel));
const int hy= suby + y*(1<<(1+qpel));
uint8_t * const * const ref= c->ref[ref_index];
uint8_t * const * const src= c->src[src_index];
const uint8_t * const * const ref = c->ref[ref_index];
const uint8_t * const * const src = c->src[src_index];
int d;
//FIXME check chroma 4mv, (no crashes ...)
int uvdxy; /* no, it might not be used uninitialized */
@ -396,7 +399,7 @@ static int sad_hpel_motion_search(MpegEncContext * s,
MotionEstContext * const c= &s->me;
const int penalty_factor= c->sub_penalty_factor;
int mx, my, dminh;
uint8_t *pix, *ptr;
const uint8_t *pix, *ptr;
int stride= c->stride;
LOAD_COMMON
@ -641,7 +644,7 @@ static inline int h263_mv4_search(MpegEncContext *s, int mx, int my, int shift)
const int offset= ((block&1) + (block>>1)*stride)*8;
uint8_t *dest_y = c->scratchpad + offset;
if(s->quarter_sample){
uint8_t *ref= c->ref[block][0] + (mx4>>2) + (my4>>2)*stride;
const uint8_t *ref = c->ref[block][0] + (mx4>>2) + (my4>>2)*stride;
dxy = ((my4 & 3) << 2) | (mx4 & 3);
if(s->no_rounding)
@ -649,7 +652,7 @@ static inline int h263_mv4_search(MpegEncContext *s, int mx, int my, int shift)
else
s->qdsp.put_qpel_pixels_tab[1][dxy](dest_y, ref, stride);
}else{
uint8_t *ref= c->ref[block][0] + (mx4>>1) + (my4>>1)*stride;
const uint8_t *ref = c->ref[block][0] + (mx4>>1) + (my4>>1)*stride;
dxy = ((my4 & 1) << 1) | (mx4 & 1);
if(s->no_rounding)
@ -805,7 +808,7 @@ static int interlaced_search(MpegEncContext *s, int ref_index,
int dxy;
//FIXME chroma ME
uint8_t *ref= c->ref[field_select+ref_index][0] + (mx_i>>1) + (my_i>>1)*stride;
const uint8_t *ref = c->ref[field_select+ref_index][0] + (mx_i>>1) + (my_i>>1)*stride;
dxy = ((my_i & 1) << 1) | (mx_i & 1);
if(s->no_rounding){
@ -885,7 +888,7 @@ void ff_estimate_p_frame_motion(MpegEncContext * s,
int mb_x, int mb_y)
{
MotionEstContext * const c= &s->me;
uint8_t *pix, *ppix;
const uint8_t *pix, *ppix;
int sum, mx = 0, my = 0, dmin = 0;
int varc; ///< the variance of the block (sum of squared (p[y][x]-average))
int vard; ///< sum of squared differences with the estimated motion vector
@ -1187,13 +1190,13 @@ static inline int check_bidir_mv(MpegEncContext * s,
const uint8_t * const mv_penalty_b = c->mv_penalty[s->b_code] + MAX_DMV; // f_code of the prev frame
int stride= c->stride;
uint8_t *dest_y = c->scratchpad;
uint8_t *ptr;
const uint8_t *ptr;
int dxy;
int src_x, src_y;
int fbmin;
uint8_t **src_data= c->src[0];
uint8_t **ref_data= c->ref[0];
uint8_t **ref2_data= c->ref[2];
const uint8_t *const *src_data = c->src[0];
const uint8_t *const *ref_data = c->ref[0];
const uint8_t *const *ref2_data = c->ref[2];
if(s->quarter_sample){
dxy = ((motion_fy & 3) << 2) | (motion_fx & 3);

4
libavcodec/motion_est.h
View File

@ -77,8 +77,8 @@ typedef struct MotionEstContext {
int ymax;
int pred_x;
int pred_y;
uint8_t *src[4][4];
uint8_t *ref[4][4];
const uint8_t *src[4][4];
const uint8_t *ref[4][4];
int stride;
int uvstride;
/* temp variables for picture complexity calculation */