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lavc: introduce VideoDSPContext

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Move some functions from dsputil. The idea is that videodsp contains
functions that are useful for a large and varied set of video decoders.
Currently, it contains emulated_edge_mc() and prefetch().

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
This commit is contained in:
Ronald S. Bultje
2012-12-15 09:46:02 -08:00
committed by Luca Barbato
parent a925f723a9
commit 8c53d39e7f
37 changed files with 1189 additions and 927 deletions
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26
libavcodec/dsputil.h
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@@ -188,15 +188,6 @@ void ff_init_scantable(uint8_t *, ScanTable *st, const uint8_t *src_scantable);
void ff_init_scantable_permutation(uint8_t *idct_permutation,
int idct_permutation_type);
#define EMULATED_EDGE(depth) \
void ff_emulated_edge_mc_ ## depth (uint8_t *buf, const uint8_t *src, int linesize,\
int block_w, int block_h,\
int src_x, int src_y, int w, int h);
EMULATED_EDGE(8)
EMULATED_EDGE(9)
EMULATED_EDGE(10)
/**
* DSPContext.
*/
@@ -215,21 +206,6 @@ typedef struct DSPContext {
void (*add_pixels8)(uint8_t *pixels, DCTELEM *block, int line_size);
void (*add_pixels4)(uint8_t *pixels, DCTELEM *block, int line_size);
int (*sum_abs_dctelem)(DCTELEM *block/*align 16*/);
/**
* Motion estimation with emulated edge values.
* @param buf pointer to destination buffer (unaligned)
* @param src pointer to pixel source (unaligned)
* @param linesize width (in pixels) for src/buf
* @param block_w number of pixels (per row) to copy to buf
* @param block_h nummber of pixel rows to copy to buf
* @param src_x offset of src to start of row - this may be negative
* @param src_y offset of src to top of image - this may be negative
* @param w width of src in pixels
* @param h height of src in pixels
*/
void (*emulated_edge_mc)(uint8_t *buf, const uint8_t *src, int linesize,
int block_w, int block_h,
int src_x, int src_y, int w, int h);
/**
* translational global motion compensation.
*/
@@ -465,8 +441,6 @@ typedef struct DSPContext {
#define EDGE_TOP 1
#define EDGE_BOTTOM 2
void (*prefetch)(void *mem, int stride, int h);
void (*shrink[4])(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height);
/**