mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-11-26 19:01:44 +02:00
fd17218558
VP4 applies a loop filter during motion compensation, causing the block offset will often by unaligned. This produces a bus error on some platforms, namely ARMv7 NEON. This patch adds a unaligned version of the loop filter function pointer to VP3DSPContext. Reported-by: Mike Melanson <mike@multimedia.cx> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
65 lines
2.7 KiB
C
65 lines
2.7 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_VP3DSP_H
|
|
#define AVCODEC_VP3DSP_H
|
|
|
|
#include <stddef.h>
|
|
#include <stdint.h>
|
|
|
|
typedef struct VP3DSPContext {
|
|
/**
|
|
* Copy 8xH pixels from source to destination buffer using a bilinear
|
|
* filter with no rounding (i.e. *dst = (*a + *b) >> 1).
|
|
*
|
|
* @param dst destination buffer, aligned by 8
|
|
* @param a first source buffer, no alignment
|
|
* @param b second source buffer, no alignment
|
|
* @param stride distance between two lines in source/dest buffers
|
|
* @param h height
|
|
*/
|
|
void (*put_no_rnd_pixels_l2)(uint8_t *dst,
|
|
const uint8_t *a,
|
|
const uint8_t *b,
|
|
ptrdiff_t stride, int h);
|
|
|
|
void (*idct_put)(uint8_t *dest, ptrdiff_t stride, int16_t *block);
|
|
void (*idct_add)(uint8_t *dest, ptrdiff_t stride, int16_t *block);
|
|
void (*idct_dc_add)(uint8_t *dest, ptrdiff_t stride, int16_t *block);
|
|
void (*v_loop_filter)(uint8_t *src, ptrdiff_t stride, int *bounding_values);
|
|
void (*h_loop_filter)(uint8_t *src, ptrdiff_t stride, int *bounding_values);
|
|
void (*v_loop_filter_unaligned)(uint8_t *src, ptrdiff_t stride, int *bounding_values);
|
|
void (*h_loop_filter_unaligned)(uint8_t *src, ptrdiff_t stride, int *bounding_values);
|
|
} VP3DSPContext;
|
|
|
|
void ff_vp3dsp_v_loop_filter_12(uint8_t *first_pixel, ptrdiff_t stride, int *bounding_values);
|
|
void ff_vp3dsp_h_loop_filter_12(uint8_t *first_pixel, ptrdiff_t stride, int *bounding_values);
|
|
|
|
void ff_vp3dsp_idct10_put(uint8_t *dest, ptrdiff_t stride, int16_t *block);
|
|
void ff_vp3dsp_idct10_add(uint8_t *dest, ptrdiff_t stride, int16_t *block);
|
|
|
|
void ff_vp3dsp_init(VP3DSPContext *c, int flags);
|
|
void ff_vp3dsp_init_arm(VP3DSPContext *c, int flags);
|
|
void ff_vp3dsp_init_ppc(VP3DSPContext *c, int flags);
|
|
void ff_vp3dsp_init_x86(VP3DSPContext *c, int flags);
|
|
void ff_vp3dsp_init_mips(VP3DSPContext *c, int flags);
|
|
|
|
void ff_vp3dsp_set_bounding_values(int * bound_values_array, int filter_limit);
|
|
|
|
#endif /* AVCODEC_VP3DSP_H */
|