dany/libwebp
1
0
Fork 0
mirror of https://github.com/webmproject/libwebp.git synced 2025-02-12 23:12:52 +01:00
Code Issues Actions Packages Projects Releases Wiki Activity

reduce memory for VP8MB and remove bitfields use

Browse Source 
~1% faster on ARMv7

Change-Id: I3e3524e0c25ebd31a04269aae0d304932f1a781a
This commit is contained in:
skal 2013-05-21 23:20:04 +02:00
parent 7413394e7f
commit 91413be2f9
2 changed files with 5 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
src/dec/vp8.c
View File

@ -526,7 +526,8 @@ static const PackedNz kUnpackTab[16] = {
static int ParseResiduals(VP8Decoder* const dec,
VP8MB* const mb, VP8BitReader* const token_br) {
int out_t_nz, out_l_nz, first;
uint32_t out_t_nz, out_l_nz;
int first;
ProbaArray ac_prob;
const VP8QuantMatrix* const q = &dec->dqm_[dec->segment_];
int16_t* dst = dec->coeffs_;

7
src/dec/vp8i.h
View File

@ -157,10 +157,9 @@ typedef struct { // filter specs
uint8_t pad_; // mostly needed for struct aligning on ARM
} VP8FInfo;
typedef struct { // used for syntax-parsing
unsigned int nz_:24; // non-zero AC/DC coeffs (24bit)
unsigned int nz_dc_:1; // non-zero DC coeffs
unsigned int pad_:7;
typedef struct { // Top/Left Contexts used for syntax-parsing
uint8_t nz_; // non-zero AC/DC coeffs (4bit for luma + 4bit for chroma)
uint8_t nz_dc_; // non-zero DC coeff (1bit)
} VP8MB;
// Dequantization matrices