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ffmpeg.wasm-core
Commit 5bdf124c authored by Diego Biurrun's avatar Diego Biurrun
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cosmetics: Rename aanscales to ff_aanscales, it will soon be externally visible. 

Originally committed as revision 15938 to svn://svn.ffmpeg.org/ffmpeg/trunk
parent f107a02d
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Showing with 9 additions and 9 deletions
libavcodec/mpegvideo_enc.c
View file @ 5bdf124c
......@@ -49,7 +49,7 @@ static int sse_mb(MpegEncContext *s);
//#define DEBUG
static const uint16_t aanscales[64] = {
static const uint16_t ff_aanscales[64] = {
/* precomputed values scaled up by 14 bits */
16384, 22725, 21407, 19266, 16384, 12873, 8867, 4520,
22725, 31521, 29692, 26722, 22725, 17855, 12299, 6270,
......@@ -91,9 +91,9 @@ void ff_convert_matrix(DSPContext *dsp, int (*qmat)[64], uint16_t (*qmat16)[2][6
for(i=0;i<64;i++) {
const int j= dsp->idct_permutation[i];
/* 16 <= qscale * quant_matrix[i] <= 7905 */
/* 19952 <= aanscales[i] * qscale * quant_matrix[i] <= 249205026 */
/* (1<<36)/19952 >= (1<<36)/(aanscales[i] * qscale * quant_matrix[i]) >= (1<<36)/249205026 */
/* 3444240 >= (1<<36)/(aanscales[i] * qscale * quant_matrix[i]) >= 275 */
/* 19952 <= ff_aanscales[i] * qscale * quant_matrix[i] <= 249205026 */
/* (1 << 36) / 19952 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= (1 << 36) / 249205026 */
/* 3444240 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= 275 */
qmat[qscale][i] = (int)((UINT64_C(1) << QMAT_SHIFT) /
(qscale * quant_matrix[j]));
......@@ -106,12 +106,12 @@ void ff_convert_matrix(DSPContext *dsp, int (*qmat)[64], uint16_t (*qmat16)[2][6
for(i=0;i<64;i++) {
const int j= dsp->idct_permutation[i];
/* 16 <= qscale * quant_matrix[i] <= 7905 */
/* 19952 <= aanscales[i] * qscale * quant_matrix[i] <= 249205026 */
/* (1<<36)/19952 >= (1<<36)/(aanscales[i] * qscale * quant_matrix[i]) >= (1<<36)/249205026 */
/* 3444240 >= (1<<36)/(aanscales[i] * qscale * quant_matrix[i]) >= 275 */
/* 19952 <= ff_aanscales[i] * qscale * quant_matrix[i] <= 249205026 */
/* (1 << 36) / 19952 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= (1<<36)/249205026 */
/* 3444240 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= 275 */
qmat[qscale][i] = (int)((UINT64_C(1) << (QMAT_SHIFT + 14)) /
(aanscales[i] * qscale * quant_matrix[j]));
(ff_aanscales[i] * qscale * quant_matrix[j]));
}
} else {
for(i=0;i<64;i++) {
......@@ -137,7 +137,7 @@ void ff_convert_matrix(DSPContext *dsp, int (*qmat)[64], uint16_t (*qmat16)[2][6
|| dsp->fdct == ff_faandct
#endif
) {
max= (8191LL*aanscales[i]) >> 14;
max = (8191LL*ff_aanscales[i]) >> 14;
}
while(((max * qmat[qscale][i]) >> shift) > INT_MAX){
shift++;
......
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