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vf_rotate.c File Reference

rotation filter, partially based on the tests/rotozoom.c program More...

#include "libavutil/avstring.h"
#include "libavutil/eval.h"
#include "libavutil/opt.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/parseutils.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "drawutils.h"
#include "internal.h"
#include "video.h"
#include <float.h>

Go to the source code of this file.

Data Structures

struct  RotContext
 
struct  ThreadData
 

Macros

#define OFFSET(x)   offsetof(RotContext, x)
 
#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
 
#define FIXP   (1<<16)
 
#define FIXP2   (1<<20)
 
#define INT_PI   3294199
 
#define SET_SIZE_EXPR(name, opt_name)
 
#define TS2T(ts, tb)   ((ts) == AV_NOPTS_VALUE ? NAN : (double)(ts)*av_q2d(tb))
 

Enumerations

enum  var_name {
  VAR_CH, VAR_N, VAR_NB_IN_CHANNELS, VAR_NB_OUT_CHANNELS,
  VAR_T, VAR_S, VAR_VARS_NB, VAR_VALUE1,
  VAR_VALUE2, VAR_VARS_NB, VAR_TB, VAR_PTS,
  VAR_START_PTS, VAR_PREV_PTS, VAR_PREV_SELECTED_PTS, VAR_T,
  VAR_START_T, VAR_PREV_T, VAR_PREV_SELECTED_T, VAR_PICT_TYPE,
  VAR_I, VAR_P, VAR_B, VAR_S,
  VAR_SI, VAR_SP, VAR_BI, VAR_PICT_TYPE_I,
  VAR_PICT_TYPE_P, VAR_PICT_TYPE_B, VAR_PICT_TYPE_S, VAR_PICT_TYPE_SI,
  VAR_PICT_TYPE_SP, VAR_PICT_TYPE_BI, VAR_INTERLACE_TYPE, VAR_INTERLACE_TYPE_P,
  VAR_INTERLACE_TYPE_T, VAR_INTERLACE_TYPE_B, VAR_CONSUMED_SAMPLES_N, VAR_SAMPLES_N,
  VAR_SAMPLE_RATE, VAR_N, VAR_SELECTED_N, VAR_PREV_SELECTED_N,
  VAR_KEY, VAR_POS, VAR_SCENE, VAR_CONCATDEC_SELECT,
  VAR_VARS_NB, VAR_PI, VAR_PHI, VAR_E,
  VAR_IN_W, VAR_IW, VAR_IN_H, VAR_IH,
  VAR_OUT_W, VAR_OW, VAR_OUT_H, VAR_OH,
  VAR_A, VAR_SAR, VAR_DAR, VAR_HSUB,
  VAR_VSUB, VAR_OHSUB, VAR_OVSUB, VARS_NB,
  VAR_FRAME_RATE, VAR_INTERLACED, VAR_N, VAR_NB_CONSUMED_SAMPLES,
  VAR_NB_SAMPLES, VAR_POS, VAR_PREV_INPTS, VAR_PREV_INT,
  VAR_PREV_OUTPTS, VAR_PREV_OUTT, VAR_PTS, VAR_SAMPLE_RATE,
  VAR_STARTPTS, VAR_STARTT, VAR_T, VAR_TB,
  VAR_RTCTIME, VAR_RTCSTART, VAR_S, VAR_SR,
  VAR_VARS_NB, VAR_AVTB, VAR_INTB, VAR_SR,
  VAR_VARS_NB, VAR_W, VAR_H, VAR_A,
  VAR_DAR, VAR_SAR, VAR_HSUB, VAR_VSUB,
  VARS_NB, VAR_W, VAR_H, VAR_CW,
  VAR_CH, VAR_HSUB, VAR_VSUB, VARS_NB,
  VAR_IN_W, VAR_IW, VAR_IN_H, VAR_IH,
  VAR_OUT_W, VAR_OW, VAR_OUT_H, VAR_OH,
  VAR_A, VAR_SAR, VAR_DAR, VAR_HSUB,
  VAR_VSUB, VAR_X, VAR_Y, VAR_N,
  VAR_POS, VAR_T, VAR_VARS_NB, VAR_DAR,
  VAR_HSUB, VAR_VSUB, VAR_IN_H, VAR_IH,
  VAR_IN_W, VAR_IW, VAR_SAR, VAR_X,
  VAR_Y, VAR_H, VAR_W, VAR_T,
  VAR_MAX, VARS_NB, VAR_DAR, VAR_HSUB,
  VAR_VSUB, VAR_LINE_H, VAR_LH, VAR_MAIN_H,
  VAR_h, VAR_H, VAR_MAIN_W, VAR_w,
  VAR_W, VAR_MAX_GLYPH_A, VAR_ASCENT, VAR_MAX_GLYPH_D,
  VAR_DESCENT, VAR_MAX_GLYPH_H, VAR_MAX_GLYPH_W, VAR_N,
  VAR_SAR, VAR_T, VAR_TEXT_H, VAR_TH,
  VAR_TEXT_W, VAR_TW, VAR_X, VAR_Y,
  VAR_PICT_TYPE, VAR_VARS_NB, VAR_N, VAR_POS,
  VAR_R, VAR_T, VAR_NB, VAR_N,
  VAR_PTS, VAR_R, VAR_T, VAR_TB,
  VAR_NB, VAR_W, VAR_H, VAR_VAL,
  VAR_MAXVAL, VAR_MINVAL, VAR_NEGVAL, VAR_CLIPVAL,
  VAR_VARS_NB, VAR_W, VAR_H, VAR_X,
  VAR_Y, VAR_BITDEPTHX, VAR_BITDEPTHY, VAR_VARS_NB,
  VAR_MAIN_W, VAR_MW, VAR_MAIN_H, VAR_MH,
  VAR_OVERLAY_W, VAR_OW, VAR_OVERLAY_H, VAR_OH,
  VAR_HSUB, VAR_VSUB, VAR_X, VAR_Y,
  VAR_N, VAR_POS, VAR_T, VAR_VARS_NB,
  VAR_IN_W, VAR_IW, VAR_IN_H, VAR_IH,
  VAR_OUT_W, VAR_OW, VAR_OUT_H, VAR_OH,
  VAR_X, VAR_Y, VAR_A, VAR_SAR,
  VAR_DAR, VAR_HSUB, VAR_VSUB, VARS_NB,
  VAR_W, VAR_H, VAR_VAL, VAR_YMIN,
  VAR_UMIN, VAR_VMIN, VAR_AMIN, VAR_YMAX,
  VAR_UMAX, VAR_VMAX, VAR_AMAX, VAR_VARS_NB,
  VAR_IN_W, VAR_IW, VAR_IN_H, VAR_IH,
  VAR_OUT_W, VAR_OW, VAR_OUT_H, VAR_OH,
  VAR_HSUB, VAR_VSUB, VAR_N, VAR_T,
  VAR_VARS_NB, VAR_PI, VAR_PHI, VAR_E,
  VAR_IN_W, VAR_IW, VAR_IN_H, VAR_IH,
  VAR_OUT_W, VAR_OW, VAR_OUT_H, VAR_OH,
  VAR_A, VAR_DAR, VAR_SAR, VARS_NB,
  VAR_W, VAR_H, VAR_N, VAR_PTS,
  VAR_R, VAR_T, VAR_TB, VAR_NB,
  VAR_IN_W, VAR_IW, VAR_IN_H, VAR_IH,
  VAR_OUT_W, VAR_OW, VAR_OUT_H, VAR_OH,
  VAR_IN, VAR_ON, VAR_DURATION, VAR_PDURATION,
  VAR_TIME, VAR_FRAME, VAR_ZOOM, VAR_PZOOM,
  VAR_X, VAR_PX, VAR_Y, VAR_PY,
  VAR_A, VAR_SAR, VAR_DAR, VAR_HSUB,
  VAR_VSUB, VARS_NB, VAR_IN_W, VAR_IW,
  VAR_IN_H, VAR_IH, VAR_OUT_W, VAR_OW,
  VAR_OUT_H, VAR_OH, VAR_A, VAR_SAR,
  VAR_DAR, VAR_HSUB, VAR_VSUB, VAR_OHSUB,
  VAR_OVSUB, VARS_NB, VAR_X, VAR_Y,
  VAR_W, VAR_H, VAR_TIME, VAR_SPEED,
  VAR_TEMPO, VAR_ORDER, VAR_PATTERN, VAR_ROW,
  VAR_VARS_NB
}
 

Functions

 AVFILTER_DEFINE_CLASS (rotate)
 
static av_cold int init (AVFilterContext *ctx)
 
static av_cold void uninit (AVFilterContext *ctx)
 
static int query_formats (AVFilterContext *ctx)
 
static double get_rotated_w (void *opaque, double angle)
 
static double get_rotated_h (void *opaque, double angle)
 
static int64_t int_sin (int64_t a)
 Compute the sin of a using integer values. More...
 
static uint8_t * interpolate_bilinear8 (uint8_t *dst_color, const uint8_t *src, int src_linesize, int src_linestep, int x, int y, int max_x, int max_y)
 Interpolate the color in src at position x and y using bilinear interpolation. More...
 
static uint8_t * interpolate_bilinear16 (uint8_t *dst_color, const uint8_t *src, int src_linesize, int src_linestep, int x, int y, int max_x, int max_y)
 Interpolate the color in src at position x and y using bilinear interpolation. More...
 
static int config_props (AVFilterLink *outlink)
 
static av_always_inline void copy_elem (uint8_t *pout, const uint8_t *pin, int elem_size)
 
static av_always_inline void simple_rotate_internal (uint8_t *dst, const uint8_t *src, int src_linesize, int angle, int elem_size, int len)
 
static av_always_inline void simple_rotate (uint8_t *dst, const uint8_t *src, int src_linesize, int angle, int elem_size, int len)
 
static int filter_slice (AVFilterContext *ctx, void *arg, int job, int nb_jobs)
 
static int filter_frame (AVFilterLink *inlink, AVFrame *in)
 
static int process_command (AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
 

Variables

static const char *const var_names []
 
static const AVOption rotate_options []
 
static double(*const func1 [])(void *, double)
 
static const char *const func1_names []
 
static const AVFilterPad rotate_inputs []
 
static const AVFilterPad rotate_outputs []
 
AVFilter ff_vf_rotate
 

Detailed Description

rotation filter, partially based on the tests/rotozoom.c program

Definition in file vf_rotate.c.

Macro Definition Documentation

#define OFFSET (   x)    offsetof(RotContext, x)

Definition at line 95 of file vf_rotate.c.

#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Definition at line 96 of file vf_rotate.c.

#define FIXP   (1<<16)

Definition at line 201 of file vf_rotate.c.

Referenced by filter_frame(), and filter_slice().

#define FIXP2   (1<<20)

Definition at line 202 of file vf_rotate.c.

Referenced by int_sin().

#define INT_PI   3294199

Definition at line 203 of file vf_rotate.c.

Referenced by filter_frame(), and int_sin().

#define SET_SIZE_EXPR (   name,
  opt_name 
)
Value:
do { \
ret = av_expr_parse_and_eval(&res, expr = rot->name##_expr_str, \
var_names, rot->var_values, \
func1_names, func1, NULL, NULL, rot, 0, ctx); \
if (ret < 0 || isnan(res) || isinf(res) || res <= 0) { \
av_log(ctx, AV_LOG_ERROR, \
"Error parsing or evaluating expression for option %s: " \
"invalid expression '%s' or non-positive or indefinite value %f\n", \
opt_name, expr, res); \
return ret; \
} \
} while (0)
NULL
#define NULL
Definition: coverity.c:32
func1_names
static const char *const func1_names[]
Definition: vf_rotate.c:195
isinf
#define isinf(x)
Definition: libm.h:317
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:28
av_expr_parse_and_eval
int av_expr_parse_and_eval(double *d, const char *s, const char *const *const_names, const double *const_values, const char *const *func1_names, double(*const *funcs1)(void *, double), const char *const *func2_names, double(*const *funcs2)(void *, double, double), void *opaque, int log_offset, void *log_ctx)
Parse and evaluate an expression.
Definition: eval.c:737
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
func1
static double(*const func1[])(void *, double)
Definition: vf_rotate.c:189
return
return
Definition: audio_convert.c:415
ctx
AVFormatContext * ctx
Definition: movenc.c:48
isnan
#define isnan(x)
Definition: libm.h:340
if
if(ret< 0)
Definition: vf_mcdeint.c:279
var_names
static const char *const var_names[]
Definition: vf_rotate.c:41

Referenced by config_props().

#define TS2T (   ts,
  tb 
)    ((ts) == AV_NOPTS_VALUE ? NAN : (double)(ts)*av_q2d(tb))

Definition at line 417 of file vf_rotate.c.

Referenced by filter_frame().

Enumeration Type Documentation

enum var_name
Enumerator
VAR_CH 
VAR_N 
VAR_NB_IN_CHANNELS 
VAR_NB_OUT_CHANNELS 
VAR_T 
VAR_S 
VAR_VARS_NB 
VAR_VALUE1 
VAR_VALUE2 
VAR_VARS_NB 
VAR_TB 
VAR_PTS 
VAR_START_PTS 
VAR_PREV_PTS 
VAR_PREV_SELECTED_PTS 
VAR_T 
VAR_START_T 
VAR_PREV_T 
VAR_PREV_SELECTED_T 
VAR_PICT_TYPE 
VAR_I 
VAR_P 
VAR_B 
VAR_S 
VAR_SI 
VAR_SP 
VAR_BI 
VAR_PICT_TYPE_I 
VAR_PICT_TYPE_P 
VAR_PICT_TYPE_B 
VAR_PICT_TYPE_S 
VAR_PICT_TYPE_SI 
VAR_PICT_TYPE_SP 
VAR_PICT_TYPE_BI 
VAR_INTERLACE_TYPE 
VAR_INTERLACE_TYPE_P 
VAR_INTERLACE_TYPE_T 
VAR_INTERLACE_TYPE_B 
VAR_CONSUMED_SAMPLES_N 
VAR_SAMPLES_N 
VAR_SAMPLE_RATE 
VAR_N 
VAR_SELECTED_N 
VAR_PREV_SELECTED_N 
VAR_KEY 
VAR_POS 
VAR_SCENE 
VAR_CONCATDEC_SELECT 
VAR_VARS_NB 
VAR_PI 
VAR_PHI 
VAR_E 
VAR_IN_W 
VAR_IW 
VAR_IN_H 
VAR_IH 
VAR_OUT_W 
VAR_OW 
VAR_OUT_H 
VAR_OH 
VAR_A 
VAR_SAR 
VAR_DAR 
VAR_HSUB 
VAR_VSUB 
VAR_OHSUB 
VAR_OVSUB 
VARS_NB 
VAR_FRAME_RATE 
VAR_INTERLACED 
VAR_N 
VAR_NB_CONSUMED_SAMPLES 
VAR_NB_SAMPLES 
VAR_POS 
VAR_PREV_INPTS 
VAR_PREV_INT 
VAR_PREV_OUTPTS 
VAR_PREV_OUTT 
VAR_PTS 
VAR_SAMPLE_RATE 
VAR_STARTPTS 
VAR_STARTT 
VAR_T 
VAR_TB 
VAR_RTCTIME 
VAR_RTCSTART 
VAR_S 
VAR_SR 
VAR_VARS_NB 
VAR_AVTB 
VAR_INTB 
VAR_SR 
VAR_VARS_NB 
VAR_W 
VAR_H 
VAR_A 
VAR_DAR 
VAR_SAR 
VAR_HSUB 
VAR_VSUB 
VARS_NB 
VAR_W 
VAR_H 
VAR_CW 
VAR_CH 
VAR_HSUB 
VAR_VSUB 
VARS_NB 
VAR_IN_W 
VAR_IW 
VAR_IN_H 
VAR_IH 
VAR_OUT_W 
VAR_OW 
VAR_OUT_H 
VAR_OH 
VAR_A 
VAR_SAR 
VAR_DAR 
VAR_HSUB 
VAR_VSUB 
VAR_X 
VAR_Y 
VAR_N 
VAR_POS 
VAR_T 
VAR_VARS_NB 
VAR_DAR 
VAR_HSUB 
VAR_VSUB 
VAR_IN_H 
VAR_IH 
VAR_IN_W 
VAR_IW 
VAR_SAR 
VAR_X 
VAR_Y 
VAR_H 
VAR_W 
VAR_T 
VAR_MAX 
VARS_NB 
VAR_DAR 
VAR_HSUB 
VAR_VSUB 
VAR_LINE_H 
VAR_LH 
VAR_MAIN_H 
VAR_h 
VAR_H 
VAR_MAIN_W 
VAR_w 
VAR_W 
VAR_MAX_GLYPH_A 
VAR_ASCENT 
VAR_MAX_GLYPH_D 
VAR_DESCENT 
VAR_MAX_GLYPH_H 
VAR_MAX_GLYPH_W 
VAR_N 
VAR_SAR 
VAR_T 
VAR_TEXT_H 
VAR_TH 
VAR_TEXT_W 
VAR_TW 
VAR_X 
VAR_Y 
VAR_PICT_TYPE 
VAR_VARS_NB 
VAR_N 
VAR_POS 
VAR_R 
VAR_T 
VAR_NB 
VAR_N 
VAR_PTS 
VAR_R 
VAR_T 
VAR_TB 
VAR_NB 
VAR_W 
VAR_H 
VAR_VAL 
VAR_MAXVAL 
VAR_MINVAL 
VAR_NEGVAL 
VAR_CLIPVAL 
VAR_VARS_NB 
VAR_W 
VAR_H 
VAR_X 
VAR_Y 
VAR_BITDEPTHX 
VAR_BITDEPTHY 
VAR_VARS_NB 
VAR_MAIN_W 
VAR_MW 
VAR_MAIN_H 
VAR_MH 
VAR_OVERLAY_W 
VAR_OW 
VAR_OVERLAY_H 
VAR_OH 
VAR_HSUB 
VAR_VSUB 
VAR_X 
VAR_Y 
VAR_N 
VAR_POS 
VAR_T 
VAR_VARS_NB 
VAR_IN_W 
VAR_IW 
VAR_IN_H 
VAR_IH 
VAR_OUT_W 
VAR_OW 
VAR_OUT_H 
VAR_OH 
VAR_X 
VAR_Y 
VAR_A 
VAR_SAR 
VAR_DAR 
VAR_HSUB 
VAR_VSUB 
VARS_NB 
VAR_W 
VAR_H 
VAR_VAL 
VAR_YMIN 
VAR_UMIN 
VAR_VMIN 
VAR_AMIN 
VAR_YMAX 
VAR_UMAX 
VAR_VMAX 
VAR_AMAX 
VAR_VARS_NB 
VAR_IN_W 
VAR_IW 
VAR_IN_H 
VAR_IH 
VAR_OUT_W 
VAR_OW 
VAR_OUT_H 
VAR_OH 
VAR_HSUB 
VAR_VSUB 
VAR_N 
VAR_T 
VAR_VARS_NB 
VAR_PI 
VAR_PHI 
VAR_E 
VAR_IN_W 
VAR_IW 
VAR_IN_H 
VAR_IH 
VAR_OUT_W 
VAR_OW 
VAR_OUT_H 
VAR_OH 
VAR_A 
VAR_DAR 
VAR_SAR 
VARS_NB 
VAR_W 
VAR_H 
VAR_N 
VAR_PTS 
VAR_R 
VAR_T 
VAR_TB 
VAR_NB 
VAR_IN_W 
VAR_IW 
VAR_IN_H 
VAR_IH 
VAR_OUT_W 
VAR_OW 
VAR_OUT_H 
VAR_OH 
VAR_IN 
VAR_ON 
VAR_DURATION 
VAR_PDURATION 
VAR_TIME 
VAR_FRAME 
VAR_ZOOM 
VAR_PZOOM 
VAR_X 
VAR_PX 
VAR_Y 
VAR_PY 
VAR_A 
VAR_SAR 
VAR_DAR 
VAR_HSUB 
VAR_VSUB 
VARS_NB 
VAR_IN_W 
VAR_IW 
VAR_IN_H 
VAR_IH 
VAR_OUT_W 
VAR_OW 
VAR_OUT_H 
VAR_OH 
VAR_A 
VAR_SAR 
VAR_DAR 
VAR_HSUB 
VAR_VSUB 
VAR_OHSUB 
VAR_OVSUB 
VARS_NB 
VAR_X 
VAR_Y 
VAR_W 
VAR_H 
VAR_TIME 
VAR_SPEED 
VAR_TEMPO 
VAR_ORDER 
VAR_PATTERN 
VAR_ROW 
VAR_VARS_NB 

Definition at line 52 of file vf_rotate.c.

Function Documentation

AVFILTER_DEFINE_CLASS ( rotate  )
static av_cold int init ( AVFilterContext *  ctx)
static

Definition at line 113 of file vf_rotate.c.

static av_cold void uninit ( AVFilterContext *  ctx)
static

Definition at line 126 of file vf_rotate.c.

static int query_formats ( AVFilterContext *  ctx)
static

Definition at line 134 of file vf_rotate.c.

static double get_rotated_w ( void *  opaque,
double  angle 
)
static

Definition at line 165 of file vf_rotate.c.

static double get_rotated_h ( void *  opaque,
double  angle 
)
static

Definition at line 177 of file vf_rotate.c.

static int64_t int_sin ( int64_t  a)
static

Compute the sin of a using integer values.

Input is scaled by FIXP2 and output values are scaled by FIXP.

Definition at line 209 of file vf_rotate.c.

Referenced by filter_frame().

static uint8_t* interpolate_bilinear8 ( uint8_t *  dst_color,
const uint8_t *  src,
int  src_linesize,
int  src_linestep,
int  x,
int  y,
int  max_x,
int  max_y 
)
static

Interpolate the color in src at position x and y using bilinear interpolation.

Definition at line 232 of file vf_rotate.c.

Referenced by config_props().

static uint8_t* interpolate_bilinear16 ( uint8_t *  dst_color,
const uint8_t *  src,
int  src_linesize,
int  src_linestep,
int  x,
int  y,
int  max_x,
int  max_y 
)
static

Interpolate the color in src at position x and y using bilinear interpolation.

Definition at line 262 of file vf_rotate.c.

Referenced by config_props().

static int config_props ( AVFilterLink *  outlink)
static

Definition at line 288 of file vf_rotate.c.

static av_always_inline void copy_elem ( uint8_t *  pout,
const uint8_t *  pin,
int  elem_size 
)
static

Definition at line 361 of file vf_rotate.c.

Referenced by simple_rotate_internal().

static av_always_inline void simple_rotate_internal ( uint8_t *  dst,
const uint8_t *  src,
int  src_linesize,
int  angle,
int  elem_size,
int  len 
)
static

Definition at line 384 of file vf_rotate.c.

Referenced by simple_rotate().

static av_always_inline void simple_rotate ( uint8_t *  dst,
const uint8_t *  src,
int  src_linesize,
int  angle,
int  elem_size,
int  len 
)
static

Definition at line 406 of file vf_rotate.c.

Referenced by filter_slice().

static int filter_slice ( AVFilterContext *  ctx,
void *  arg,
int  job,
int  nb_jobs 
)
static

Definition at line 419 of file vf_rotate.c.

Referenced by filter_frame().

static int filter_frame ( AVFilterLink *  inlink,
AVFrame *  in 
)
static

Definition at line 509 of file vf_rotate.c.

static int process_command ( AVFilterContext *  ctx,
const char *  cmd,
const char *  args,
char *  res,
int  res_len,
int  flags 
)
static

Definition at line 563 of file vf_rotate.c.

Variable Documentation

const char* const var_names[]
static
Initial value:
= {
"in_w" , "iw",
"in_h" , "ih",
"out_w", "ow",
"out_h", "oh",
"hsub", "vsub",
"n",
"t",
NULL
}
NULL
#define NULL
Definition: coverity.c:32

Definition at line 41 of file vf_rotate.c.

Referenced by config_props(), and process_command().

const AVOption rotate_options[]
static
Initial value:
= {
{ "angle", "set angle (in radians)", OFFSET(angle_expr_str), AV_OPT_TYPE_STRING, {.str="0"}, CHAR_MIN, CHAR_MAX, .flags=FLAGS },
{ "a", "set angle (in radians)", OFFSET(angle_expr_str), AV_OPT_TYPE_STRING, {.str="0"}, CHAR_MIN, CHAR_MAX, .flags=FLAGS },
{ "out_w", "set output width expression", OFFSET(outw_expr_str), AV_OPT_TYPE_STRING, {.str="iw"}, CHAR_MIN, CHAR_MAX, .flags=FLAGS },
{ "ow", "set output width expression", OFFSET(outw_expr_str), AV_OPT_TYPE_STRING, {.str="iw"}, CHAR_MIN, CHAR_MAX, .flags=FLAGS },
{ "out_h", "set output height expression", OFFSET(outh_expr_str), AV_OPT_TYPE_STRING, {.str="ih"}, CHAR_MIN, CHAR_MAX, .flags=FLAGS },
{ "oh", "set output height expression", OFFSET(outh_expr_str), AV_OPT_TYPE_STRING, {.str="ih"}, CHAR_MIN, CHAR_MAX, .flags=FLAGS },
{ "fillcolor", "set background fill color", OFFSET(fillcolor_str), AV_OPT_TYPE_STRING, {.str="black"}, CHAR_MIN, CHAR_MAX, .flags=FLAGS },
{ "c", "set background fill color", OFFSET(fillcolor_str), AV_OPT_TYPE_STRING, {.str="black"}, CHAR_MIN, CHAR_MAX, .flags=FLAGS },
{ "bilinear", "use bilinear interpolation", OFFSET(use_bilinear), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1, .flags=FLAGS },
{ NULL }
}
NULL
#define NULL
Definition: coverity.c:32
AV_OPT_TYPE_STRING
Definition: opt.h:227
OFFSET
#define OFFSET(x)
Definition: vf_rotate.c:95
AV_OPT_TYPE_BOOL
Definition: opt.h:240
FLAGS
#define FLAGS
Definition: vf_rotate.c:96

Definition at line 98 of file vf_rotate.c.

double(* const func1[])(void *, double)
static
Initial value:
= {
get_rotated_w,
get_rotated_h,
NULL
}
NULL
#define NULL
Definition: coverity.c:32
get_rotated_h
static double get_rotated_h(void *opaque, double angle)
Definition: vf_rotate.c:177
get_rotated_w
static double get_rotated_w(void *opaque, double angle)
Definition: vf_rotate.c:165

Definition at line 189 of file vf_rotate.c.

Referenced by config_props(), ff_rate_control_init(), and parse_channel_expressions().

const char* const func1_names[]
static
Initial value:
= {
"rotw",
"roth",
NULL
}
NULL
#define NULL
Definition: coverity.c:32

Definition at line 195 of file vf_rotate.c.

Referenced by av_expr_parse(), config_props(), ff_rate_control_init(), and parse_channel_expressions().

const AVFilterPad rotate_inputs[]
static
Initial value:
= {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.filter_frame = filter_frame,
},
{ NULL }
}
NULL
#define NULL
Definition: coverity.c:32
AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_rotate.c:509

Definition at line 586 of file vf_rotate.c.

const AVFilterPad rotate_outputs[]
static
Initial value:
= {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.config_props = config_props,
},
{ NULL }
}
NULL
#define NULL
Definition: coverity.c:32
config_props
static int config_props(AVFilterLink *outlink)
Definition: vf_rotate.c:288
AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201

Definition at line 595 of file vf_rotate.c.

AVFilter ff_vf_rotate
Initial value:
= {
.name = "rotate",
.description = NULL_IF_CONFIG_SMALL("Rotate the input image."),
.priv_size = sizeof(RotContext),
.init = init,
.uninit = uninit,
.query_formats = query_formats,
.process_command = process_command,
.inputs = rotate_inputs,
.outputs = rotate_outputs,
.priv_class = &rotate_class,
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
}
init
static av_cold int init(AVFilterContext *ctx)
Definition: vf_rotate.c:113
rotate_inputs
static const AVFilterPad rotate_inputs[]
Definition: vf_rotate.c:586
AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
#define AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
Some filters support a generic "enable" expression option that can be used to enable or disable a fil...
Definition: avfilter.h:125
flags
static int flags
Definition: log.c:57
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_rotate.c:126
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:179
AVFILTER_FLAG_SLICE_THREADS
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:116
query_formats
static int query_formats(AVFilterContext *ctx)
Definition: vf_rotate.c:134
outputs
static const AVFilterPad outputs[]
Definition: af_afftfilt.c:389
rotate_outputs
static const AVFilterPad rotate_outputs[]
Definition: vf_rotate.c:595
inputs
static const AVFilterPad inputs[]
Definition: af_afftfilt.c:379
process_command
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
Definition: vf_rotate.c:563

Definition at line 604 of file vf_rotate.c.

Generated on Fri Jan 12 2018 01:48:22 for FFmpeg by   doxygen 1.8.6