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ffmpeg.wasm-core
Commit 69b97739 authored by Michael Niedermayer's avatar Michael Niedermayer
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j2k: s/getnbctxno/getsigctxno/g 

Signed-off-by: 's avatarMichael Niedermayer <michaelni@gmx.at>
parent 5157ec89
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Showing with 8 additions and 8 deletions
libavcodec/j2k.c
View file @ 69b97739
......@@ -103,7 +103,7 @@ static void tag_tree_zero(Jpeg2000TgtNode *t, int w, int h)
}
}
static int getnbctxno(int flag, int bandno)
static int getsigctxno(int flag, int bandno)
{
int h, v, d;
......@@ -166,7 +166,7 @@ void ff_j2k_init_tier1_luts(void)
int i, j;
for (i = 0; i < 256; i++)
for (j = 0; j < 4; j++)
ff_jpeg2000_sigctxno_lut[i][j] = getnbctxno(i, j);
ff_jpeg2000_sigctxno_lut[i][j] = getsigctxno(i, j);
for (i = 0; i < 16; i++)
for (j = 0; j < 16; j++)
ff_jpeg2000_sgnctxno_lut[i][j] = getsgnctxno(i + (j << 8), &ff_jpeg2000_xorbit_lut[i][j]);
......
libavcodec/j2k.h
View file @ 69b97739
......@@ -213,7 +213,7 @@ void ff_j2k_set_significant(Jpeg2000T1Context *t1, int x, int y, int negative);
extern uint8_t ff_jpeg2000_sigctxno_lut[256][4];
static inline int ff_j2k_getnbctxno(int flag, int bandno)
static inline int ff_j2k_getsigctxno(int flag, int bandno)
{
return ff_jpeg2000_sigctxno_lut[flag&255][bandno];
}
......
libavcodec/j2kdec.c
View file @ 69b97739
......@@ -631,7 +631,7 @@ static void decode_sigpass(Jpeg2000T1Context *t1, int width, int height, int bpn
int flags_mask = -1;
if (vert_causal_ctx_csty_symbol && y == y0 + 3)
flags_mask &= ~(JPEG2000_T1_SIG_S | JPEG2000_T1_SIG_SW | JPEG2000_T1_SIG_SE);
if (ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + ff_j2k_getnbctxno(t1->flags[y+1][x+1] & flags_mask, bandno))){
if (ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + ff_j2k_getsigctxno(t1->flags[y+1][x+1] & flags_mask, bandno))){
int xorbit, ctxno = ff_jpeg2000_getsgnctxno(t1->flags[y+1][x+1], &xorbit);
if (bpass_csty_symbol)
t1->data[y][x] = ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + ctxno) ? -mask : mask;
......@@ -694,7 +694,7 @@ static void decode_clnpass(Jpeg2000DecoderContext *s, Jpeg2000T1Context *t1, int
int flags_mask = -1;
if (vert_causal_ctx_csty_symbol && y == y0 + 3)
flags_mask &= ~(JPEG2000_T1_SIG_S | JPEG2000_T1_SIG_SW | JPEG2000_T1_SIG_SE);
dec = ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + ff_j2k_getnbctxno(t1->flags[y+1][x+1] & flags_mask,
dec = ff_mqc_decode(&t1->mqc, t1->mqc.cx_states + ff_j2k_getsigctxno(t1->flags[y+1][x+1] & flags_mask,
bandno));
}
}
......
libavcodec/j2kenc.c
View file @ 69b97739
......@@ -480,7 +480,7 @@ static void encode_sigpass(Jpeg2000T1Context *t1, int width, int height, int ban
for (x = 0; x < width; x++)
for (y = y0; y < height && y < y0+4; y++){
if (!(t1->flags[y+1][x+1] & JPEG2000_T1_SIG) && (t1->flags[y+1][x+1] & JPEG2000_T1_SIG_NB)){
int ctxno = ff_j2k_getnbctxno(t1->flags[y+1][x+1], bandno),
int ctxno = ff_j2k_getsigctxno(t1->flags[y+1][x+1], bandno),
bit = t1->data[y][x] & mask ? 1 : 0;
ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + ctxno, bit);
if (bit){
......@@ -532,7 +532,7 @@ static void encode_clnpass(Jpeg2000T1Context *t1, int width, int height, int ban
ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + MQC_CX_UNI, rlen & 1);
for (y = y0 + rlen; y < y0 + 4; y++){
if (!(t1->flags[y+1][x+1] & (JPEG2000_T1_SIG | JPEG2000_T1_VIS))){
int ctxno = ff_j2k_getnbctxno(t1->flags[y+1][x+1], bandno);
int ctxno = ff_j2k_getsigctxno(t1->flags[y+1][x+1], bandno);
if (y > y0 + rlen)
ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + ctxno, t1->data[y][x] & mask ? 1:0);
if (t1->data[y][x] & mask){ // newly significant
......@@ -548,7 +548,7 @@ static void encode_clnpass(Jpeg2000T1Context *t1, int width, int height, int ban
} else{
for (y = y0; y < y0 + 4 && y < height; y++){
if (!(t1->flags[y+1][x+1] & (JPEG2000_T1_SIG | JPEG2000_T1_VIS))){
int ctxno = ff_j2k_getnbctxno(t1->flags[y+1][x+1], bandno);
int ctxno = ff_j2k_getsigctxno(t1->flags[y+1][x+1], bandno);
ff_mqc_encode(&t1->mqc, t1->mqc.cx_states + ctxno, t1->data[y][x] & mask ? 1:0);
if (t1->data[y][x] & mask){ // newly significant
int xorbit;
......
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