FFmpeg
deshake.h
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1 /*
2  * Copyright (C) 2013 Wei Gao <weigao@multicorewareinc.com>
3  * Copyright (C) 2013 Lenny Wang
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 #ifndef AVFILTER_DESHAKE_H
23 #define AVFILTER_DESHAKE_H
24 
25 #include "config.h"
26 #include "avfilter.h"
27 #include "transform.h"
28 #include "libavutil/pixelutils.h"
29 
30 
32  EXHAUSTIVE, ///< Search all possible positions
33  SMART_EXHAUSTIVE, ///< Search most possible positions (faster)
35 };
36 
37 typedef struct IntMotionVector {
38  int x; ///< Horizontal shift
39  int y; ///< Vertical shift
41 
42 typedef struct MotionVector {
43  double x; ///< Horizontal shift
44  double y; ///< Vertical shift
45 } MotionVector;
46 
47 typedef struct Transform {
48  MotionVector vec; ///< Motion vector
49  double angle; ///< Angle of rotation
50  double zoom; ///< Zoom percentage
51 } Transform;
52 
53 #define MAX_R 64
54 
55 typedef struct DeshakeContext {
56  const AVClass *class;
57  int counts[2*MAX_R+1][2*MAX_R+1]; /// < Scratch buffer for motion search
58  double *angles; ///< Scratch buffer for block angles
59  unsigned angles_size;
60  AVFrame *ref; ///< Previous frame
61  int rx; ///< Maximum horizontal shift
62  int ry; ///< Maximum vertical shift
63  int edge; ///< Edge fill method
64  int blocksize; ///< Size of blocks to compare
65  int contrast; ///< Contrast threshold
66  int search; ///< Motion search method
67  av_pixelutils_sad_fn sad; ///< Sum of the absolute difference function
68  Transform last; ///< Transform from last frame
69  int refcount; ///< Number of reference frames (defines averaging window)
70  FILE *fp;
72  int cw; ///< Crop motion search to this box
73  int ch;
74  int cx;
75  int cy;
76  char *filename; ///< Motion search detailed log filename
77  int opencl;
78  int (* transform)(AVFilterContext *ctx, int width, int height, int cw, int ch,
79  const float *matrix_y, const float *matrix_uv, enum InterpolateMethod interpolate,
80  enum FillMethod fill, AVFrame *in, AVFrame *out);
82 
83 #endif /* AVFILTER_DESHAKE_H */
This structure describes decoded (raw) audio or video data.
Definition: frame.h:314
int ry
Maximum vertical shift.
Definition: deshake.h:62
Main libavfilter public API header.
int y
Vertical shift.
Definition: deshake.h:39
unsigned angles_size
Definition: deshake.h:59
double angle
Angle of rotation.
Definition: deshake.h:49
InterpolateMethod
Definition: transform.h:39
double zoom
Zoom percentage.
Definition: deshake.h:50
static void interpolate(float *out, float v1, float v2, int size)
Definition: twinvq.c:84
#define height
int blocksize
Size of blocks to compare.
Definition: deshake.h:64
FILE * fp
Definition: deshake.h:70
int refcount
Number of reference frames (defines averaging window)
Definition: deshake.h:69
int rx
Maximum horizontal shift.
Definition: deshake.h:61
char * filename
Motion search detailed log filename.
Definition: deshake.h:76
double x
Horizontal shift.
Definition: deshake.h:43
av_pixelutils_sad_fn sad
Sum of the absolute difference function.
Definition: deshake.h:67
int contrast
Contrast threshold.
Definition: deshake.h:65
int(* av_pixelutils_sad_fn)(const uint8_t *src1, ptrdiff_t stride1, const uint8_t *src2, ptrdiff_t stride2)
Sum of abs(src1[x] - src2[x])
Definition: pixelutils.h:29
FillMethod
Definition: transform.h:51
#define width
AVFormatContext * ctx
Definition: movenc.c:48
int edge
Edge fill method.
Definition: deshake.h:63
int search
Motion search method.
Definition: deshake.h:66
transform input video
double y
Vertical shift.
Definition: deshake.h:44
Search all possible positions.
Definition: deshake.h:32
static const int8_t transform[32][32]
Definition: hevcdsp.c:27
double * angles
< Scratch buffer for motion search
Definition: deshake.h:58
AVFrame * ref
Previous frame.
Definition: deshake.h:60
Transform avg
Definition: deshake.h:71
Search most possible positions (faster)
Definition: deshake.h:33
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(const int16_t *) pi >> 8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t,*(const int16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t,*(const int16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(const int32_t *) pi >> 24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t,*(const int32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t,*(const int32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31))))#define SET_CONV_FUNC_GROUP(ofmt, ifmt) static void set_generic_function(AudioConvert *ac){}void ff_audio_convert_free(AudioConvert **ac){if(!*ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);}AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, int sample_rate, int apply_map){AudioConvert *ac;int in_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) return NULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method!=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt) > 2){ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc){av_free(ac);return NULL;}return ac;}in_planar=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);if(in_planar==out_planar){ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar?ac->channels:1;}else if(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;else ac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_AARCH64) ff_audio_convert_init_aarch64(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);return ac;}int ff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in){int use_generic=1;int len=in->nb_samples;int p;if(ac->dc){av_log(ac->avr, AV_LOG_TRACE,"%d samples - audio_convert: %s to %s (dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));return ff_convert_dither(ac-> in
Describe the class of an AVClass context structure.
Definition: log.h:67
int cw
Crop motion search to this box.
Definition: deshake.h:72
Transform last
Transform from last frame.
Definition: deshake.h:68
int
SearchMethod
Definition: deshake.h:31
int x
Horizontal shift.
Definition: deshake.h:38
MotionVector vec
Motion vector.
Definition: deshake.h:48
#define MAX_R
Definition: deshake.h:53
An instance of a filter.
Definition: avfilter.h:341
FILE * out
Definition: movenc.c:54