FFmpeg
mpegvideoencdsp.h
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1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * FFmpeg is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 #ifndef AVCODEC_MPEGVIDEOENCDSP_H
20 #define AVCODEC_MPEGVIDEOENCDSP_H
21 
22 #include <stdint.h>
23 
24 #include "avcodec.h"
25 
26 #define BASIS_SHIFT 16
27 #define RECON_SHIFT 6
28 
29 #define EDGE_TOP 1
30 #define EDGE_BOTTOM 2
31 
32 typedef struct MpegvideoEncDSPContext {
33  int (*try_8x8basis)(int16_t rem[64], int16_t weight[64],
34  int16_t basis[64], int scale);
35  void (*add_8x8basis)(int16_t rem[64], int16_t basis[64], int scale);
36 
37  int (*pix_sum)(uint8_t *pix, int line_size);
38  int (*pix_norm1)(uint8_t *pix, int line_size);
39 
40  void (*shrink[4])(uint8_t *dst, int dst_wrap, const uint8_t *src,
41  int src_wrap, int width, int height);
42 
43  void (*draw_edges)(uint8_t *buf, int wrap, int width, int height,
44  int w, int h, int sides);
46 
48  AVCodecContext *avctx);
50  AVCodecContext *avctx);
52  AVCodecContext *avctx);
54  AVCodecContext *avctx);
56  AVCodecContext *avctx);
57 
58 #endif /* AVCODEC_MPEGVIDEOENCDSP_H */
basis
static int16_t basis[64][64]
Definition: mpegvideo_enc.c:4254
w
uint8_t w
Definition: llviddspenc.c:39
MpegvideoEncDSPContext::draw_edges
void(* draw_edges)(uint8_t *buf, int wrap, int width, int height, int w, int h, int sides)
Definition: mpegvideoencdsp.h:43
ff_mpegvideoencdsp_init_x86
void ff_mpegvideoencdsp_init_x86(MpegvideoEncDSPContext *c, AVCodecContext *avctx)
Definition: mpegvideoencdsp_init.c:217
wrap
#define wrap(func)
Definition: neontest.h:65
width
#define width
ff_mpegvideoencdsp_init
void ff_mpegvideoencdsp_init(MpegvideoEncDSPContext *c, AVCodecContext *avctx)
Definition: mpegvideoencdsp.c:232
MpegvideoEncDSPContext::pix_norm1
int(* pix_norm1)(uint8_t *pix, int line_size)
Definition: mpegvideoencdsp.h:38
src
#define src
Definition: vp8dsp.c:255
c
Undefined Behavior In the C some operations are like signed integer dereferencing freed accessing outside allocated Undefined Behavior must not occur in a C it is not safe even if the output of undefined operations is unused The unsafety may seem nit picking but Optimizing compilers have in fact optimized code on the assumption that no undefined Behavior occurs Optimizing code based on wrong assumptions can and has in some cases lead to effects beyond the output of computations The signed integer overflow problem in speed critical code Code which is highly optimized and works with signed integers sometimes has the problem that often the output of the computation does not c
Definition: undefined.txt:32
weight
static int weight(int i, int blen, int offset)
Definition: diracdec.c:1561
MpegvideoEncDSPContext::pix_sum
int(* pix_sum)(uint8_t *pix, int line_size)
Definition: mpegvideoencdsp.h:37
height
#define height
MpegvideoEncDSPContext
Definition: mpegvideoencdsp.h:32
uint8_t
uint8_t
Definition: audio_convert.c:194
ff_mpegvideoencdsp_init_mips
void ff_mpegvideoencdsp_init_mips(MpegvideoEncDSPContext *c, AVCodecContext *avctx)
Definition: mpegvideoencdsp_init_mips.c:26
MpegvideoEncDSPContext::add_8x8basis
void(* add_8x8basis)(int16_t rem[64], int16_t basis[64], int scale)
Definition: mpegvideoencdsp.h:35
avcodec.h
MpegvideoEncDSPContext::try_8x8basis
int(* try_8x8basis)(int16_t rem[64], int16_t weight[64], int16_t basis[64], int scale)
Definition: mpegvideoencdsp.h:33
AVCodecContext
main external API structure.
Definition: avcodec.h:536
ff_mpegvideoencdsp_init_arm
void ff_mpegvideoencdsp_init_arm(MpegvideoEncDSPContext *c, AVCodecContext *avctx)
Definition: mpegvideoencdsp_init_arm.c:30
ff_mpegvideoencdsp_init_ppc
void ff_mpegvideoencdsp_init_ppc(MpegvideoEncDSPContext *c, AVCodecContext *avctx)
Definition: mpegvideoencdsp.c:151
h
h
Definition: vp9dsp_template.c:2038
int
int
Definition: ffmpeg_filter.c:158
MpegvideoEncDSPContext::shrink
void(* shrink[4])(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height)
Definition: mpegvideoencdsp.h:40