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avcodec/eatqi: Don't use IDCTDSP-API unnecessarily

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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>
This commit is contained in:
Andreas Rheinhardt
2022-10-20 05:30:10 +02:00
parent a8f34f0877
commit 3cabe958a7
2 changed files with 2 additions and 8 deletions
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2
configure vendored
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@@ -2822,7 +2822,7 @@ eac3_decoder_select="ac3_decoder"
eac3_encoder_select="ac3_encoder"
eamad_decoder_select="aandcttables blockdsp bswapdsp"
eatgq_decoder_select="aandcttables"
eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
eatqi_decoder_select="aandcttables blockdsp bswapdsp"
exr_decoder_deps="zlib"
exr_encoder_deps="zlib"
ffv1_decoder_select="rangecoder"

8
libavcodec/eatqi.c
View File

@@ -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",