RepoMirrors
/
ffmpeg
mirror of https://git.ffmpeg.org/ffmpeg.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

avcodec/mv30: use aandcttables

This commit is contained in:
Peter Ross 2020-04-10 23:14:35 +10:00
parent 06dab51e68
commit 1b59f3f844
2 changed files with 3 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
configure vendored
View File

@ -2790,7 +2790,7 @@ msmpeg4v3_decoder_select="h263_decoder"
msmpeg4v3_encoder_select="h263_encoder"
mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
mts2_decoder_select="mss34dsp"
mv30_decoder_select="blockdsp"
mv30_decoder_select="aandcttables blockdsp"
mvha_decoder_deps="zlib"
mvha_decoder_select="llviddsp"
mwsc_decoder_deps="zlib"

22
libavcodec/mv30.c
View File

@ -33,6 +33,7 @@
#include "blockdsp.h"
#include "get_bits.h"
#include "internal.h"
#include "aandcttab.h"
typedef struct MV30Context {
GetBitContext gb;
@ -58,25 +59,6 @@ typedef struct MV30Context {
static VLC cbp_tab;
static const int16_t scale_tab[] = {
16384, 22725, 21407, 19266,
16384, 12873, 8867, 4520,
22725, 31521, 29692, 26722,
22725, 17855, 12299, 6270,
21407, 29692, 27969, 25172,
21407, 16819, 11585, 5906,
19266, 26722, 25172, 22654,
19266, 15137, 10426, 5315,
16384, 22725, 21407, 19266,
16384, 12873, 8867, 4520,
12873, 17855, 16819, 15137,
12873, 10114, 6967, 3552,
8867, 12299, 11585, 10426,
8867, 6967, 4799, 2446,
4520, 6270, 5906, 5315,
4520, 3552, 2446, 1247,
};
static const uint8_t luma_tab[] = {
12, 12, 15, 19, 25, 34, 40, 48,
12, 12, 18, 22, 27, 44, 47, 46,
@ -116,7 +98,7 @@ static void get_qtable(int16_t *table, int quant, const uint8_t *quant_tab)
for (int i = 0; i < 64; i++) {
table[i] = av_clip((quant_tab[i] * factor + 0x32) / 100, 1, 0x7fff);
table[i] = ((int)scale_tab[i] * (int)table[i] + 0x800) >> 12;
table[i] = ((int)ff_aanscales[i] * (int)table[i] + 0x800) >> 12;
}
}