opensource/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2025-08-06 15:49:50 +08:00
Code Issues Packages Projects Releases Wiki Activity

swscale: error dithering for 16/9/10-bit to 8-bit.

Browse Source 
Based on a somewhat similar idea in FFmpeg's swscale copy.
This commit is contained in:
Ronald S. Bultje
2011-07-05 12:49:11 -07:00
parent 7d7bacf0f1
commit 4e3e333a79
3 changed files with 160 additions and 30 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
libswscale/swscale_internal.h
View File

@ -321,6 +321,8 @@ typedef struct SwsContext {
#define ALP_MMX_FILTER_OFFSET "11*8+4*4*256*2+48"
#define UV_OFF "11*8+4*4*256*3+48"
#define UV_OFFx2 "11*8+4*4*256*3+56"
#define DITHER16 "11*8+4*4*256*3+64"
#define DITHER32 "11*8+4*4*256*3+80"
DECLARE_ALIGNED(8, uint64_t, redDither);
DECLARE_ALIGNED(8, uint64_t, greenDither);
@ -345,6 +347,10 @@ typedef struct SwsContext {
int32_t alpMmxFilter[4*MAX_FILTER_SIZE];
DECLARE_ALIGNED(8, ptrdiff_t, uv_off); ///< offset (in pixels) between u and v planes
DECLARE_ALIGNED(8, ptrdiff_t, uv_offx2); ///< offset (in bytes) between u and v planes
uint16_t dither16[8];
uint32_t dither32[8];
const uint8_t *chrDither8, *lumDither8;
#if HAVE_ALTIVEC
vector signed short CY;