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authorAndreas Rheinhardt <andreas.rheinhardt@outlook.com>2021-05-07 22:30:53 +0200
committerAndreas Rheinhardt <andreas.rheinhardt@outlook.com>2022-01-09 09:28:37 +0100
commit6739bb5a0e749a4936a274ceff7aab2b488393c6 (patch)
tree867563b53fa911dbfabaef5b1309db593352add3 /libavcodec/h263.c
parentde29d482f9ee8d9cea9c58a1370ab99028adff3f (diff)
downloadffmpeg-6739bb5a0e749a4936a274ceff7aab2b488393c6.tar.gz
avcodec/h263: Move functions only used once to their caller
In this case it means moving ff_h263_pred_dc() resp. ff_h263_pred_acdc() to ituh263enc.c resp. ituh263dec.c. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Diffstat (limited to 'libavcodec/h263.c')
-rw-r--r--libavcodec/h263.c128
1 files changed, 0 insertions, 128 deletions
diff --git a/libavcodec/h263.c b/libavcodec/h263.c
index f8fba3c9f4..b30ffaf878 100644
--- a/libavcodec/h263.c
+++ b/libavcodec/h263.c
@@ -102,47 +102,6 @@ void ff_h263_update_motion_val(MpegEncContext * s){
}
}
-int ff_h263_pred_dc(MpegEncContext * s, int n, int16_t **dc_val_ptr)
-{
- int x, y, wrap, a, c, pred_dc;
- int16_t *dc_val;
-
- /* find prediction */
- if (n < 4) {
- x = 2 * s->mb_x + (n & 1);
- y = 2 * s->mb_y + ((n & 2) >> 1);
- wrap = s->b8_stride;
- dc_val = s->dc_val[0];
- } else {
- x = s->mb_x;
- y = s->mb_y;
- wrap = s->mb_stride;
- dc_val = s->dc_val[n - 4 + 1];
- }
- /* B C
- * A X
- */
- a = dc_val[(x - 1) + (y) * wrap];
- c = dc_val[(x) + (y - 1) * wrap];
-
- /* No prediction outside GOB boundary */
- if(s->first_slice_line && n!=3){
- if(n!=2) c= 1024;
- if(n!=1 && s->mb_x == s->resync_mb_x) a= 1024;
- }
- /* just DC prediction */
- if (a != 1024 && c != 1024)
- pred_dc = (a + c) >> 1;
- else if (a != 1024)
- pred_dc = a;
- else
- pred_dc = c;
-
- /* we assume pred is positive */
- *dc_val_ptr = &dc_val[x + y * wrap];
- return pred_dc;
-}
-
void ff_h263_loop_filter(MpegEncContext * s){
int qp_c;
const int linesize = s->linesize;
@@ -228,93 +187,6 @@ void ff_h263_loop_filter(MpegEncContext * s){
}
}
-void ff_h263_pred_acdc(MpegEncContext * s, int16_t *block, int n)
-{
- int x, y, wrap, a, c, pred_dc, scale, i;
- int16_t *dc_val, *ac_val, *ac_val1;
-
- /* find prediction */
- if (n < 4) {
- x = 2 * s->mb_x + (n & 1);
- y = 2 * s->mb_y + (n>> 1);
- wrap = s->b8_stride;
- dc_val = s->dc_val[0];
- ac_val = s->ac_val[0][0];
- scale = s->y_dc_scale;
- } else {
- x = s->mb_x;
- y = s->mb_y;
- wrap = s->mb_stride;
- dc_val = s->dc_val[n - 4 + 1];
- ac_val = s->ac_val[n - 4 + 1][0];
- scale = s->c_dc_scale;
- }
-
- ac_val += ((y) * wrap + (x)) * 16;
- ac_val1 = ac_val;
-
- /* B C
- * A X
- */
- a = dc_val[(x - 1) + (y) * wrap];
- c = dc_val[(x) + (y - 1) * wrap];
-
- /* No prediction outside GOB boundary */
- if(s->first_slice_line && n!=3){
- if(n!=2) c= 1024;
- if(n!=1 && s->mb_x == s->resync_mb_x) a= 1024;
- }
-
- if (s->ac_pred) {
- pred_dc = 1024;
- if (s->h263_aic_dir) {
- /* left prediction */
- if (a != 1024) {
- ac_val -= 16;
- for(i=1;i<8;i++) {
- block[s->idsp.idct_permutation[i << 3]] += ac_val[i];
- }
- pred_dc = a;
- }
- } else {
- /* top prediction */
- if (c != 1024) {
- ac_val -= 16 * wrap;
- for(i=1;i<8;i++) {
- block[s->idsp.idct_permutation[i]] += ac_val[i + 8];
- }
- pred_dc = c;
- }
- }
- } else {
- /* just DC prediction */
- if (a != 1024 && c != 1024)
- pred_dc = (a + c) >> 1;
- else if (a != 1024)
- pred_dc = a;
- else
- pred_dc = c;
- }
-
- /* we assume pred is positive */
- block[0]=block[0]*scale + pred_dc;
-
- if (block[0] < 0)
- block[0] = 0;
- else
- block[0] |= 1;
-
- /* Update AC/DC tables */
- dc_val[(x) + (y) * wrap] = block[0];
-
- /* left copy */
- for(i=1;i<8;i++)
- ac_val1[i] = block[s->idsp.idct_permutation[i << 3]];
- /* top copy */
- for(i=1;i<8;i++)
- ac_val1[8 + i] = block[s->idsp.idct_permutation[i]];
-}
-
int16_t *ff_h263_pred_motion(MpegEncContext * s, int block, int dir,
int *px, int *py)
{