forked from mirrors/gecko-dev
bbbd3c280f
Backed out changeset ce0c34e548fa (bug 1889978) Backed out changeset 96e08e04fa4d (bug 1889978) Backed out changeset 2aeb87615ee0 (bug 1889978) Backed out changeset 2272c3a73ad3 (bug 1889978) Backed out changeset dc81d0c812b8 (bug 1889978)
118 lines
4.9 KiB
C
118 lines
4.9 KiB
C
/*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* 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.
|
|
*
|
|
* 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 FFmpeg; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#ifndef AVCODEC_IDCTDSP_H
|
|
#define AVCODEC_IDCTDSP_H
|
|
|
|
#include <stddef.h>
|
|
#include <stdint.h>
|
|
|
|
#include "config.h"
|
|
|
|
struct AVCodecContext;
|
|
|
|
enum idct_permutation_type {
|
|
FF_IDCT_PERM_NONE,
|
|
FF_IDCT_PERM_LIBMPEG2,
|
|
FF_IDCT_PERM_SIMPLE,
|
|
FF_IDCT_PERM_TRANSPOSE,
|
|
FF_IDCT_PERM_PARTTRANS,
|
|
FF_IDCT_PERM_SSE2,
|
|
};
|
|
|
|
void ff_permute_scantable(uint8_t dst[64], const uint8_t src[64],
|
|
const uint8_t permutation[64]);
|
|
void ff_init_scantable_permutation(uint8_t *idct_permutation,
|
|
enum idct_permutation_type perm_type);
|
|
int ff_init_scantable_permutation_x86(uint8_t *idct_permutation,
|
|
enum idct_permutation_type perm_type);
|
|
|
|
typedef struct IDCTDSPContext {
|
|
/* pixel ops : interface with DCT */
|
|
void (*put_pixels_clamped)(const int16_t *block /* align 16 */,
|
|
uint8_t *av_restrict pixels /* align 8 */,
|
|
ptrdiff_t line_size);
|
|
void (*put_signed_pixels_clamped)(const int16_t *block /* align 16 */,
|
|
uint8_t *av_restrict pixels /* align 8 */,
|
|
ptrdiff_t line_size);
|
|
void (*add_pixels_clamped)(const int16_t *block /* align 16 */,
|
|
uint8_t *av_restrict pixels /* align 8 */,
|
|
ptrdiff_t line_size);
|
|
|
|
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 */,
|
|
ptrdiff_t 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 */,
|
|
ptrdiff_t 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];
|
|
enum idct_permutation_type perm_type;
|
|
|
|
int mpeg4_studio_profile;
|
|
} IDCTDSPContext;
|
|
|
|
void ff_put_pixels_clamped_c(const int16_t *block, uint8_t *av_restrict pixels,
|
|
ptrdiff_t line_size);
|
|
void ff_add_pixels_clamped_c(const int16_t *block, uint8_t *av_restrict pixels,
|
|
ptrdiff_t line_size);
|
|
|
|
void ff_idctdsp_init(IDCTDSPContext *c, struct AVCodecContext *avctx);
|
|
|
|
void ff_idctdsp_init_aarch64(IDCTDSPContext *c, struct AVCodecContext *avctx,
|
|
unsigned high_bit_depth);
|
|
void ff_idctdsp_init_alpha(IDCTDSPContext *c, struct AVCodecContext *avctx,
|
|
unsigned high_bit_depth);
|
|
void ff_idctdsp_init_arm(IDCTDSPContext *c, struct AVCodecContext *avctx,
|
|
unsigned high_bit_depth);
|
|
void ff_idctdsp_init_ppc(IDCTDSPContext *c, struct AVCodecContext *avctx,
|
|
unsigned high_bit_depth);
|
|
void ff_idctdsp_init_riscv(IDCTDSPContext *c, struct AVCodecContext *avctx,
|
|
unsigned high_bit_depth);
|
|
void ff_idctdsp_init_x86(IDCTDSPContext *c, struct AVCodecContext *avctx,
|
|
unsigned high_bit_depth);
|
|
void ff_idctdsp_init_mips(IDCTDSPContext *c, struct AVCodecContext *avctx,
|
|
unsigned high_bit_depth);
|
|
void ff_idctdsp_init_loongarch(IDCTDSPContext *c, struct AVCodecContext *avctx,
|
|
unsigned high_bit_depth);
|
|
|
|
#endif /* AVCODEC_IDCTDSP_H */
|