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[FFmpeg-devel,06/22] avcodec/imm4: Remove useless ScanTable

Message ID AS8P250MB07442CE8A68C0FB9E6F2BB988F2A9@AS8P250MB0744.EURP250.PROD.OUTLOOK.COM
State Superseded
Headers show
Series [FFmpeg-devel,01/22] configure: Add idctdsp dependency to codecs that need it | expand

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yinshiyou/make_loongarch64 success Make finished
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andriy/make_x86 success Make finished
andriy/make_fate_x86 success Make fate finished

Commit Message

Andreas Rheinhardt Oct. 20, 2022, 8:45 a.m. UTC 
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
---
 libavcodec/imm4.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)
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Patch

diff --git a/libavcodec/imm4.c b/libavcodec/imm4.c
index e2aa20813a..f342e6d313 100644
--- a/libavcodec/imm4.c
+++ b/libavcodec/imm4.c
@@ -51,9 +51,8 @@  typedef struct IMM4Context {
     unsigned lo;
     unsigned hi;
 
-    ScanTable intra_scantable;
-    DECLARE_ALIGNED(32, int16_t, block)[6][64];
     IDCTDSPContext idsp;
+    DECLARE_ALIGNED(32, int16_t, block)[6][64];
 } IMM4Context;
 
 static const uint8_t intra_cb[] = {
@@ -129,7 +128,7 @@  static int decode_block(AVCodecContext *avctx, GetBitContext *gb,
                         int block, int factor, int flag, int offset, int flag2)
 {
     IMM4Context *s = avctx->priv_data;
-    const uint8_t *scantable = s->intra_scantable.permutated;
+    const uint8_t *scantable = s->idsp.idct_permutation;
     int i, last, len, factor2;
 
     for (i = !flag; i < 64; i++) {
@@ -172,7 +171,7 @@  static int decode_blocks(AVCodecContext *avctx, GetBitContext *gb,
                          unsigned cbp, int flag, int offset, unsigned flag2)
 {
     IMM4Context *s = avctx->priv_data;
-    const uint8_t *scantable = s->intra_scantable.permutated;
+    const uint8_t *scantable = s->idsp.idct_permutation;
     int ret, i;
 
     memset(s->block, 0, sizeof(s->block));
@@ -495,14 +494,9 @@  static av_cold int decode_init(AVCodecContext *avctx)
 {
     static AVOnce init_static_once = AV_ONCE_INIT;
     IMM4Context *s = avctx->priv_data;
-    uint8_t table[64];
-
-    for (int i = 0; i < 64; i++)
-        table[i] = i;
 
     ff_bswapdsp_init(&s->bdsp);
     ff_idctdsp_init(&s->idsp, avctx);
-    ff_init_scantable(s->idsp.idct_permutation, &s->intra_scantable, table);
 
     s->prev_frame = av_frame_alloc();
     if (!s->prev_frame)