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Code Issues Releases Activity

avcodec/mpegvideo: Avoid {a,d}c_val[{1,2}]

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These are already mostly unused; not using them here is in
preparation for removing them altogether. Use block_index[4..5]
instead for addressing.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt
2025-06-13 02:37:42 +02:00
parent 13527b39bb
commit 32cbadcd74
1 changed files with 8 additions and 7 deletions
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15
libavcodec/mpegvideo.c
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@ -492,22 +492,23 @@ void ff_clean_intra_table_entries(MpegEncContext *s)
{ {
int wrap = s->b8_stride; int wrap = s->b8_stride;
int xy = s->block_index[0]; int xy = s->block_index[0];
/* chroma */
unsigned uxy = s->block_index[4];
unsigned vxy = s->block_index[5];
int16_t *dc_val = s->dc_val[0];
s->dc_val[0][xy ] = s->dc_val[0][xy ] =
s->dc_val[0][xy + 1 ] = s->dc_val[0][xy + 1 ] =
s->dc_val[0][xy + wrap] = s->dc_val[0][xy + wrap] =
s->dc_val[0][xy + 1 + wrap] = 1024; s->dc_val[0][xy + 1 + wrap] = 1024;
dc_val[uxy] =
dc_val[vxy] = 1024;
/* ac pred */ /* ac pred */
memset(s->ac_val[0][xy ], 0, 32 * sizeof(int16_t)); memset(s->ac_val[0][xy ], 0, 32 * sizeof(int16_t));
memset(s->ac_val[0][xy + wrap], 0, 32 * sizeof(int16_t)); memset(s->ac_val[0][xy + wrap], 0, 32 * sizeof(int16_t));
/* chroma */
wrap = s->mb_stride;
xy = s->mb_x + s->mb_y * wrap;
s->dc_val[1][xy] =
s->dc_val[2][xy] = 1024;
/* ac pred */ /* ac pred */
memset(s->ac_val[1][xy], 0, 16 * sizeof(int16_t)); memset(s->ac_val[0][uxy], 0, 16 * sizeof(int16_t));
memset(s->ac_val[2][xy], 0, 16 * sizeof(int16_t)); memset(s->ac_val[0][vxy], 0, 16 * sizeof(int16_t));
} }
void ff_init_block_index(MpegEncContext *s){ //FIXME maybe rename void ff_init_block_index(MpegEncContext *s){ //FIXME maybe rename