diff options
| -rw-r--r-- | libavcodec/mpegvideo_enc.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/libavcodec/mpegvideo_enc.c b/libavcodec/mpegvideo_enc.c index 9efc4424a7..bae9f962db 100644 --- a/libavcodec/mpegvideo_enc.c +++ b/libavcodec/mpegvideo_enc.c @@ -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++; |