diff options
Diffstat (limited to 'libavcodec/vp3.c')
| -rw-r--r-- | libavcodec/vp3.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/libavcodec/vp3.c b/libavcodec/vp3.c index 18b9cb89bf..7c26609b09 100644 --- a/libavcodec/vp3.c +++ b/libavcodec/vp3.c @@ -136,6 +136,7 @@ typedef struct Vp3DecodeContext { ThreadFrame current_frame; int keyframe; uint8_t idct_permutation[64]; + uint8_t idct_scantable[64]; DSPContext dsp; VideoDSPContext vdsp; VP3DSPContext vp3dsp; @@ -173,8 +174,6 @@ typedef struct Vp3DecodeContext { int8_t (*motion_val[2])[2]; - ScanTable scantable; - /* tables */ uint16_t coded_dc_scale_factor[64]; uint32_t coded_ac_scale_factor[64]; @@ -1351,7 +1350,7 @@ static inline int vp3_dequant(Vp3DecodeContext *s, Vp3Fragment *frag, int plane, int inter, int16_t block[64]) { int16_t *dequantizer = s->qmat[frag->qpi][inter][plane]; - uint8_t *perm = s->scantable.permutated; + uint8_t *perm = s->idct_scantable; int i = 0; do { @@ -1700,8 +1699,12 @@ static av_cold int vp3_decode_init(AVCodecContext *avctx) ff_videodsp_init(&s->vdsp, 8); ff_vp3dsp_init(&s->vp3dsp, avctx->flags); - ff_init_scantable_permutation(s->idct_permutation, s->vp3dsp.idct_perm); - ff_init_scantable(s->idct_permutation, &s->scantable, ff_zigzag_direct); + for (i = 0; i < 64; i++) { +#define T(x) (x >> 3) | ((x & 7) << 3) + s->idct_permutation[i] = T(i); + s->idct_scantable[i] = T(ff_zigzag_direct[i]); +#undef T + } /* initialize to an impossible value which will force a recalculation * in the first frame decode */ |