uint8_t *blk1 /* align width (8 or 16) */,
uint8_t *blk2 /* align 1 */, int line_size, int h);
-/**
- * Scantable.
- */
-typedef struct ScanTable {
- const uint8_t *scantable;
- uint8_t permutated[64];
- uint8_t raster_end[64];
-} ScanTable;
-
-void ff_init_scantable(uint8_t *permutation, ScanTable *st,
- const uint8_t *src_scantable);
-void ff_init_scantable_permutation(uint8_t *idct_permutation,
- int idct_permutation_type);
-
/**
* DSPContext.
*/
const uint8_t *s1 /* align 8 */,
const uint8_t *s2 /* align 8 */,
int stride);
- void (*put_pixels_clamped)(const int16_t *block /* align 16 */,
- uint8_t *pixels /* align 8 */,
- int line_size);
- void (*put_signed_pixels_clamped)(const int16_t *block /* align 16 */,
- uint8_t *pixels /* align 8 */,
- int line_size);
- void (*add_pixels_clamped)(const int16_t *block /* align 16 */,
- uint8_t *pixels /* align 8 */,
- int line_size);
int (*sum_abs_dctelem)(int16_t *block /* align 16 */);
int (*pix_sum)(uint8_t *pix, int line_size);
void (*fdct)(int16_t *block /* align 16 */);
void (*fdct248)(int16_t *block /* align 16 */);
- /* IDCT really */
- void (*idct)(int16_t *block /* align 16 */);
-
- /**
- * block -> idct -> clip to unsigned 8 bit -> dest.
- * (-1392, 0, 0, ...) -> idct -> (-174, -174, ...) -> put -> (0, 0, ...)
- * @param line_size size in bytes of a horizontal line of dest
- */
- void (*idct_put)(uint8_t *dest /* align 8 */,
- int line_size, int16_t *block /* align 16 */);
-
- /**
- * block -> idct -> add dest -> clip to unsigned 8 bit -> dest.
- * @param line_size size in bytes of a horizontal line of dest
- */
- void (*idct_add)(uint8_t *dest /* align 8 */,
- int line_size, int16_t *block /* align 16 */);
-
- /**
- * IDCT input permutation.
- * Several optimized IDCTs need a permutated input (relative to the
- * normal order of the reference IDCT).
- * This permutation must be performed before the idct_put/add.
- * Note, normally this can be merged with the zigzag/alternate scan<br>
- * An example to avoid confusion:
- * - (->decode coeffs -> zigzag reorder -> dequant -> reference IDCT -> ...)
- * - (x -> reference DCT -> reference IDCT -> x)
- * - (x -> reference DCT -> simple_mmx_perm = idct_permutation
- * -> simple_idct_mmx -> x)
- * - (-> decode coeffs -> zigzag reorder -> simple_mmx_perm -> dequant
- * -> simple_idct_mmx -> ...)
- */
- uint8_t idct_permutation[64];
- int idct_permutation_type;
-#define FF_NO_IDCT_PERM 1
-#define FF_LIBMPEG2_IDCT_PERM 2
-#define FF_SIMPLE_IDCT_PERM 3
-#define FF_TRANSPOSE_IDCT_PERM 4
-#define FF_PARTTRANS_IDCT_PERM 5
-#define FF_SSE2_IDCT_PERM 6
-
int (*try_8x8basis)(int16_t rem[64], int16_t weight[64],
int16_t basis[64], int scale);
void (*add_8x8basis)(int16_t rem[64], int16_t basis[64], int scale);