FFmpeg
Data Structures | Macros | Enumerations | Functions | Variables
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
 Used for passing data between threads. More...
 

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_W,
  VAR_H, VAR_CW, VAR_CH, VAR_HSUB,
  VAR_VSUB, 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_FR,
  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_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_X, VAR_Y, VAR_W, VAR_H,
  VAR_N, 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_PKT_POS, VAR_PKT_DURATION, VAR_PKT_SIZE,
  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_MAIN_iW,
  VAR_MW, VAR_MAIN_iH, VAR_MH, VAR_OVERLAY_iW,
  VAR_OVERLAY_iH, VAR_OVERLAY_X, VAR_OX, VAR_OVERLAY_Y,
  VAR_OY, VAR_OVERLAY_W, VAR_OW, VAR_OVERLAY_H,
  VAR_OH, 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_iW, VAR_IN_W,
  VAR_iH, VAR_IN_H, VAR_oW, VAR_OUT_W,
  VAR_W, VAR_oH, VAR_OUT_H, VAR_H,
  CW, CH, CX, CY,
  VAR_VARS_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_tinterpolate_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_tinterpolate_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.

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) { \
"Error parsing or evaluating expression for option %s: " \
"invalid expression '%s' or non-positive or indefinite value %f\n", \
opt_name, expr, res); \
} \
} while (0)
#define NULL
Definition: coverity.c:32
static const char *const func1_names[]
Definition: vf_rotate.c:195
#define isinf(x)
Definition: libm.h:317
#define av_log(a,...)
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:744
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
static double(*const func1[])(void *, double)
Definition: vf_rotate.c:189
AVFormatContext * ctx
Definition: movenc.c:48
if(ret)
#define isnan(x)
Definition: libm.h:340
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a it should directly call filter_frame on the corresponding output For a if there are queued frames already one of these frames should be pushed If the filter should request a frame on one of its repeatedly until at least one frame has been pushed Return or at least make progress towards producing a it should return
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_W 
VAR_H 
VAR_CW 
VAR_CH 
VAR_HSUB 
VAR_VSUB 
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_FR 
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_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_X 
VAR_Y 
VAR_W 
VAR_H 
VAR_N 
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_PKT_POS 
VAR_PKT_DURATION 
VAR_PKT_SIZE 
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_MAIN_iW 
VAR_MW 
VAR_MAIN_iH 
VAR_MH 
VAR_OVERLAY_iW 
VAR_OVERLAY_iH 
VAR_OVERLAY_X 
VAR_OX 
VAR_OVERLAY_Y 
VAR_OY 
VAR_OVERLAY_W 
VAR_OW 
VAR_OVERLAY_H 
VAR_OH 
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_iW 
VAR_IN_W 
VAR_iH 
VAR_IN_H 
VAR_oW 
VAR_OUT_W 
VAR_W 
VAR_oH 
VAR_OUT_H 
VAR_H 
CW 
CH 
CX 
CY 
VAR_VARS_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",
}
#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 }
}
#define NULL
Definition: coverity.c:32
#define OFFSET(x)
Definition: vf_rotate.c:95
#define FLAGS
Definition: vf_rotate.c:96

Definition at line 98 of file vf_rotate.c.

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

Definition at line 195 of file vf_rotate.c.

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

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

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,
.priv_class = &rotate_class,
}
static av_cold int init(AVFilterContext *ctx)
Definition: vf_rotate.c:113
static const AVFilterPad rotate_inputs[]
Definition: vf_rotate.c:586
#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
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_rotate.c:126
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:186
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:116
static int query_formats(AVFilterContext *ctx)
Definition: vf_rotate.c:134
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203
static const AVFilterPad rotate_outputs[]
Definition: vf_rotate.c:595
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
Definition: vf_rotate.c:563
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several inputs
#define flags(name, subs,...)
Definition: cbs_av1.c:561

Definition at line 604 of file vf_rotate.c.