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authorAndreas Rheinhardt <andreas.rheinhardt@outlook.com>2022-10-20 05:30:10 +0200
committerAndreas Rheinhardt <andreas.rheinhardt@outlook.com>2022-10-24 00:46:53 +0200
commit3cabe958a79fa3dcd2009827ba35a91b179e2dcc (patch)
treec29996af7c7393576f6211825a89d3d75fd83ee1 /libavcodec/eatqi.c
parenta8f34f0877e348eef4e84a8466b413c6d438b14b (diff)
avcodec/eatqi: Don't use IDCTDSP-API unnecessarily
The eatqi decoder uses a custom IDCT and actually does not use the IDCTDSP API at all. Somehow it was nevertheless used to simply apply the identity permutation on ff_zigzag_direct. This commit stops doing so. Reviewed-by: Peter Ross <pross@xvid.org> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Diffstat (limited to 'libavcodec/eatqi.c')
-rw-r--r--libavcodec/eatqi.c8
1 files changed, 1 insertions, 7 deletions
diff --git a/libavcodec/eatqi.c b/libavcodec/eatqi.c
index 324e6f1ced..e4f12b3db2 100644
--- a/libavcodec/eatqi.c
+++ b/libavcodec/eatqi.c
@@ -36,7 +36,6 @@
#include "get_bits.h"
#include "aandcttab.h"
#include "eaidct.h"
-#include "idctdsp.h"
#include "mpeg12data.h"
#include "mpeg12dec.h"
@@ -45,8 +44,6 @@ typedef struct TqiContext {
GetBitContext gb;
BlockDSPContext bdsp;
BswapDSPContext bsdsp;
- IDCTDSPContext idsp;
- ScanTable intra_scantable;
void *bitstream_buf;
unsigned int bitstream_buf_size;
@@ -64,9 +61,6 @@ static av_cold int tqi_decode_init(AVCodecContext *avctx)
ff_blockdsp_init(&t->bdsp);
ff_bswapdsp_init(&t->bsdsp);
- ff_idctdsp_init(&t->idsp, avctx);
- ff_init_scantable_permutation(t->idsp.idct_permutation, FF_IDCT_PERM_NONE);
- ff_init_scantable(t->idsp.idct_permutation, &t->intra_scantable, ff_zigzag_direct);
avctx->framerate = (AVRational){ 15, 1 };
avctx->pix_fmt = AV_PIX_FMT_YUV420P;
@@ -82,7 +76,7 @@ static int tqi_decode_mb(TqiContext *t, int16_t (*block)[64])
for (n = 0; n < 6; n++) {
int ret = ff_mpeg1_decode_block_intra(&t->gb,
t->intra_matrix,
- t->intra_scantable.permutated,
+ ff_zigzag_direct,
t->last_dc, block[n], n, 1);
if (ret < 0) {
av_log(t->avctx, AV_LOG_ERROR, "ac-tex damaged at %d %d\n",