* Copyright (c) 2000, 2001, 2002 Fabrice Bellard
* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * Libav is distributed in the hope that it will be useful,
+ * FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
extern uint32_t ff_square_tab[512];
+
+/* minimum alignment rules ;)
+ * If you notice errors in the align stuff, need more alignment for some ASM code
+ * for some CPU or need to use a function with less aligned data then send a mail
+ * to the ffmpeg-devel mailing list, ...
+ *
+ * !warning These alignments might not match reality, (missing attribute((align))
+ * stuff somewhere possible).
+ * I (Michael) did not check them, these are just the alignments which I think
+ * could be reached easily ...
+ *
+ * !future video codecs might need functions with less strict alignment
+ */
+
struct MpegEncContext;
/* Motion estimation:
* h is limited to { width / 2, width, 2 * width },
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);
-int ff_init_scantable_permutation_x86(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);
me_cmp_func vsad[6];
me_cmp_func vsse[6];
me_cmp_func nsse[6];
+ me_cmp_func w53[6];
+ me_cmp_func w97[6];
me_cmp_func dct_max[6];
me_cmp_func dct264_sad[6];
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);
void ff_dsputil_static_init(void);
void ff_dsputil_init(DSPContext *p, AVCodecContext *avctx);
+void avpriv_dsputil_init(DSPContext* p, AVCodecContext *avctx);
+attribute_deprecated void dsputil_init(DSPContext* c, AVCodecContext *avctx);
+
+int ff_check_alignment(void);
void ff_set_cmp(DSPContext *c, me_cmp_func *cmp, int type);
+void ff_dsputil_init_alpha(DSPContext* c, AVCodecContext *avctx);
void ff_dsputil_init_arm(DSPContext *c, AVCodecContext *avctx,
unsigned high_bit_depth);
void ff_dsputil_init_ppc(DSPContext *c, AVCodecContext *avctx,
void ff_dsputil_init_x86(DSPContext *c, AVCodecContext *avctx,
unsigned high_bit_depth);
+void ff_dsputil_init_dwt(DSPContext *c);
+
#endif /* AVCODEC_DSPUTIL_H */
projects / ffmpeg / blobdiff