diff --git a/libavcodec/cabac.c b/libavcodec/cabac.c index f69b100d60..01efcdb65c 100644 --- a/libavcodec/cabac.c +++ b/libavcodec/cabac.c @@ -125,26 +125,26 @@ void ff_init_cabac_states(CABACContext *c, uint8_t const (*lps_range)[4], for(i=0; ilps_range[2*i+2][j+4]= - c->lps_range[2*i+3][j+4]= lps_range[i][j]; + c->lps_range[2*i+0][j+4]= + c->lps_range[2*i+1][j+4]= lps_range[i][j]; } - c->mps_state[2*i+2]= 2*mps_state[i]+2; - c->mps_state[2*i+3]= 2*mps_state[i]+3; + c->mps_state[2*i+0]= 2*mps_state[i]+0; + c->mps_state[2*i+1]= 2*mps_state[i]+1; if( i ){ #ifdef BRANCHLESS_CABAD - c->mps_state[-2*i-3]= 2*lps_state[i]+2; //FIXME yes this is not valid C but iam lazy, cleanup welcome - c->mps_state[-2*i-4]= 2*lps_state[i]+3; + c->mps_state[-2*i-1]= 2*lps_state[i]+0; //FIXME yes this is not valid C but iam lazy, cleanup welcome + c->mps_state[-2*i-2]= 2*lps_state[i]+1; }else{ - c->mps_state[-2*i-3]= 3; - c->mps_state[-2*i-4]= 2; + c->mps_state[-2*i-1]= 1; + c->mps_state[-2*i-2]= 0; #else - c->lps_state[2*i+2]= 2*lps_state[i]+2; - c->lps_state[2*i+3]= 2*lps_state[i]+3; + c->lps_state[2*i+0]= 2*lps_state[i]+0; + c->lps_state[2*i+1]= 2*lps_state[i]+1; }else{ - c->lps_state[2*i+2]= 3; - c->lps_state[2*i+3]= 2; + c->lps_state[2*i+0]= 1; + c->lps_state[2*i+1]= 0; #endif } } diff --git a/libavcodec/cabac.h b/libavcodec/cabac.h index 800d0d17bd..2fb439c1ec 100644 --- a/libavcodec/cabac.h +++ b/libavcodec/cabac.h @@ -40,9 +40,9 @@ typedef struct CABACContext{ #ifdef STRICT_LIMITS int symCount; #endif - uint8_t lps_range[2*66][4]; ///< rangeTabLPS - uint8_t lps_state[2*65]; ///< transIdxLPS - uint8_t mps_state[2*65]; ///< transIdxMPS + uint8_t lps_range[2*65][4]; ///< rangeTabLPS + uint8_t lps_state[2*64]; ///< transIdxLPS + uint8_t mps_state[2*64]; ///< transIdxMPS const uint8_t *bytestream_start; const uint8_t *bytestream; const uint8_t *bytestream_end; @@ -370,11 +370,11 @@ static int get_cabac(CABACContext *c, uint8_t * const state){ #define LOW "0" #define RANGE "4" #define LPS_RANGE "12" -#define LPS_STATE "12+2*66*4" -#define MPS_STATE "12+2*66*4+2*65" -#define BYTESTART "12+2*66*4+4*65" -#define BYTE "16+2*66*4+4*65" -#define BYTEEND "20+2*66*4+4*65" +#define LPS_STATE "12+2*65*4" +#define MPS_STATE "12+2*65*4+2*64" +#define BYTESTART "12+2*65*4+4*64" +#define BYTE "16+2*65*4+4*64" +#define BYTEEND "20+2*65*4+4*64" #ifndef BRANCHLESS_CABAD asm volatile( "movzbl (%1), %%eax \n\t" diff --git a/libavcodec/h264.c b/libavcodec/h264.c index bbd179d797..210005a828 100644 --- a/libavcodec/h264.c +++ b/libavcodec/h264.c @@ -7401,9 +7401,9 @@ static int decode_slice(H264Context *h){ pre = clip( ((cabac_context_init_PB[h->cabac_init_idc][i][0] * s->qscale) >>4 ) + cabac_context_init_PB[h->cabac_init_idc][i][1], 1, 126 ); if( pre <= 63 ) - h->cabac_state[i] = 2 * ( 63 - pre ) + 2; + h->cabac_state[i] = 2 * ( 63 - pre ) + 0; else - h->cabac_state[i] = 2 * ( pre - 64 ) + 3; + h->cabac_state[i] = 2 * ( pre - 64 ) + 1; } for(;;){