[FFmpeg-devel] [PATCH 15/22] avcodec/mdec: Only keep what is used from ScanTable
Andreas Rheinhardt
andreas.rheinhardt at outlook.com
Thu Oct 20 11:45:33 EEST 2022
Namely ScanTable.permutated.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt at outlook.com>
---
libavcodec/mdec.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/libavcodec/mdec.c b/libavcodec/mdec.c
index f27cf84122..f3f1387d59 100644
--- a/libavcodec/mdec.c
+++ b/libavcodec/mdec.c
@@ -44,7 +44,7 @@ typedef struct MDECContext {
BswapDSPContext bbdsp;
IDCTDSPContext idsp;
GetBitContext gb;
- ScanTable scantable;
+ uint8_t scantable[64];
int version;
int qscale;
int last_dc[3];
@@ -64,7 +64,7 @@ static inline int mdec_decode_block_intra(MDECContext *a, int16_t *block, int n)
int level, diff, i, j, run;
int component;
RLTable *rl = &ff_rl_mpeg1;
- uint8_t * const scantable = a->scantable.permutated;
+ const uint8_t * const scantable = a->scantable;
const uint16_t *quant_matrix = a->quant_matrix;
const int qscale = a->qscale;
@@ -223,8 +223,8 @@ static av_cold int decode_init(AVCodecContext *avctx)
ff_bswapdsp_init(&a->bbdsp);
ff_idctdsp_init(&a->idsp, avctx);
ff_mpeg12_init_vlcs();
- ff_init_scantable(a->idsp.idct_permutation, &a->scantable,
- ff_zigzag_direct);
+ ff_permute_scantable(a->scantable, ff_zigzag_direct,
+ a->idsp.idct_permutation);
avctx->pix_fmt = AV_PIX_FMT_YUVJ420P;
avctx->color_range = AVCOL_RANGE_JPEG;
--
2.34.1
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