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Data Structures | Macros | Functions | Variables
avf_a3dscope.c File Reference
#include "libavutil/avassert.h"
#include "libavutil/channel_layout.h"
#include "libavutil/opt.h"
#include "libavutil/parseutils.h"
#include "avfilter.h"
#include "filters.h"
#include "formats.h"
#include "audio.h"
#include "video.h"

Go to the source code of this file.

Data Structures

struct  Audio3dScopeContext
 

Macros

#define OFFSET(x)
 
#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
 
#define TFLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
 

Functions

 AVFILTER_DEFINE_CLASS (a3dscope)
 
static int query_formats (const AVFilterContext *ctx, AVFilterFormatsConfig **cfg_in, AVFilterFormatsConfig **cfg_out)
 
static int config_input (AVFilterLink *inlink)
 
static int config_output (AVFilterLink *outlink)
 
static void projection_matrix (float fov, float a, float near, float far, float matrix[4][4])
 
static void vmultiply (const float v[4], const float m[4][4], float d[4])
 
static void mmultiply (const float m2[4][4], const float m1[4][4], float m[4][4])
 
static float vdot (const float x[3], const float y[3])
 
static void view_matrix (const float eye[3], const float z[3], const float roll, const float pitch, const float yaw, float m[4][4])
 
static void draw_dot (AVFrame *out, unsigned x, unsigned y, float z, int r, int g, int b)
 
static int filter_frame (AVFilterLink *inlink, AVFrame *in)
 
static int activate (AVFilterContext *ctx)
 
static av_cold void uninit (AVFilterContext *ctx)
 

Variables

static const AVOption a3dscope_options []
 
static const AVFilterPad audio3dscope_inputs []
 
static const AVFilterPad audio3dscope_outputs []
 
const FFFilter ff_avf_a3dscope
 

Macro Definition Documentation

◆ OFFSET

#define OFFSET ( x)
Value:
offsetof(Audio3dScopeContext, x)

Definition at line 51 of file avf_a3dscope.c.

◆ FLAGS

#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Definition at line 52 of file avf_a3dscope.c.

◆ TFLAGS

#define TFLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM

Definition at line 53 of file avf_a3dscope.c.

Function Documentation

◆ AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS ( a3dscope )

◆ query_formats()

static int query_formats ( const AVFilterContext * ctx,
AVFilterFormatsConfig ** cfg_in,
AVFilterFormatsConfig ** cfg_out )
static

Definition at line 76 of file avf_a3dscope.c.

◆ config_input()

static int config_input ( AVFilterLink * inlink)
static

Definition at line 96 of file avf_a3dscope.c.

◆ config_output()

static int config_output ( AVFilterLink * outlink)
static

Definition at line 106 of file avf_a3dscope.c.

◆ projection_matrix()

static void projection_matrix ( float fov,
float a,
float near,
float far,
float matrix[4][4] )
static

Definition at line 120 of file avf_a3dscope.c.

Referenced by filter_frame().

◆ vmultiply()

static void vmultiply ( const float v[4],
const float m[4][4],
float d[4] )
inlinestatic

Definition at line 135 of file avf_a3dscope.c.

Referenced by filter_frame(), and mmultiply().

◆ mmultiply()

static void mmultiply ( const float m2[4][4],
const float m1[4][4],
float m[4][4] )
static

Definition at line 143 of file avf_a3dscope.c.

Referenced by filter_frame(), and view_matrix().

◆ vdot()

static float vdot ( const float x[3],
const float y[3] )
static

Definition at line 151 of file avf_a3dscope.c.

Referenced by view_matrix().

◆ view_matrix()

static void view_matrix ( const float eye[3],
const float z[3],
const float roll,
const float pitch,
const float yaw,
float m[4][4] )
static

Definition at line 156 of file avf_a3dscope.c.

Referenced by filter_frame().

◆ draw_dot()

static void draw_dot ( AVFrame * out,
unsigned x,
unsigned y,
float z,
int r,
int g,
int b )
static

Definition at line 200 of file avf_a3dscope.c.

Referenced by filter_frame().

◆ filter_frame()

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

Definition at line 213 of file avf_a3dscope.c.

Referenced by activate().

◆ activate()

static int activate ( AVFilterContext * ctx)
static

Definition at line 287 of file avf_a3dscope.c.

◆ uninit()

static av_cold void uninit ( AVFilterContext * ctx)
static

Definition at line 314 of file avf_a3dscope.c.

Variable Documentation

◆ a3dscope_options

const AVOption a3dscope_options[]
static
Initial value:
= {
{ "rate", "set video rate", OFFSET(frame_rate), AV_OPT_TYPE_VIDEO_RATE, {.str="25"}, 0, INT_MAX, FLAGS },
{ "r", "set video rate", OFFSET(frame_rate), AV_OPT_TYPE_VIDEO_RATE, {.str="25"}, 0, INT_MAX, FLAGS },
{ "size", "set video size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, {.str="hd720"}, 0, 0, FLAGS },
{ "s", "set video size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, {.str="hd720"}, 0, 0, FLAGS },
{ "fov", "set camera FoV", OFFSET(fov), AV_OPT_TYPE_FLOAT, {.dbl=90.f}, 40, 150, TFLAGS },
{ "roll", "set camera roll",OFFSET(roll), AV_OPT_TYPE_FLOAT, {.dbl=0.f}, -180, 180, TFLAGS },
{ "pitch","set camera pitch",OFFSET(pitch), AV_OPT_TYPE_FLOAT, {.dbl=0.f}, -180, 180, TFLAGS },
{ "yaw", "set camera yaw", OFFSET(yaw), AV_OPT_TYPE_FLOAT, {.dbl=0.f}, -180, 180, TFLAGS },
{ "xzoom","set camera zoom", OFFSET(zoom[0]),AV_OPT_TYPE_FLOAT, {.dbl=1.f}, 0.01, 10, TFLAGS },
{ "yzoom","set camera zoom", OFFSET(zoom[1]),AV_OPT_TYPE_FLOAT, {.dbl=1.f}, 0.01, 10, TFLAGS },
{ "zzoom","set camera zoom", OFFSET(zoom[2]),AV_OPT_TYPE_FLOAT, {.dbl=1.f}, 0.01, 10, TFLAGS },
{ "xpos", "set camera position", OFFSET(eye[0]), AV_OPT_TYPE_FLOAT, {.dbl=0.f},-60.f, 60.f, TFLAGS },
{ "ypos", "set camera position", OFFSET(eye[1]), AV_OPT_TYPE_FLOAT, {.dbl=0.f},-60.f, 60.f, TFLAGS },
{ "zpos", "set camera position", OFFSET(eye[2]), AV_OPT_TYPE_FLOAT, {.dbl=0.f},-60.f, 60.f, TFLAGS },
{ "length","set length", OFFSET(size), AV_OPT_TYPE_INT, {.i64=15}, 1, 60, FLAGS },
{ NULL }
}
TFLAGS
#define TFLAGS
Definition af_afade.c:66
FLAGS
#define FLAGS
Definition cmdutils.c:598
NULL
#define NULL
Definition coverity.c:32
OFFSET
#define OFFSET(x)
Definition ffmpeg_opt.c:1551
AV_OPT_TYPE_IMAGE_SIZE
@ AV_OPT_TYPE_IMAGE_SIZE
Underlying C type is two consecutive integers.
Definition opt.h:302
AV_OPT_TYPE_VIDEO_RATE
@ AV_OPT_TYPE_VIDEO_RATE
Underlying C type is AVRational.
Definition opt.h:314
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Underlying C type is int.
Definition opt.h:258
AV_OPT_TYPE_FLOAT
@ AV_OPT_TYPE_FLOAT
Underlying C type is float.
Definition opt.h:270
w
uint8_t w
Definition llvidencdsp.c:39
size
int size
Definition twinvq_data.h:10344
zoom
static void zoom(float *u, float *v, float amount)
Definition vf_xfade.c:1695

Definition at line 55 of file avf_a3dscope.c.

◆ audio3dscope_inputs

const AVFilterPad audio3dscope_inputs[]
static
Initial value:
= {
{
.name = "default",
.type = AVMEDIA_TYPE_AUDIO,
.config_props = config_input,
},
}
config_input
static int config_input(AVFilterLink *inlink)
Definition af_acontrast.c:121
AVMEDIA_TYPE_AUDIO
@ AVMEDIA_TYPE_AUDIO
Definition avutil.h:201

Definition at line 322 of file avf_a3dscope.c.

◆ audio3dscope_outputs

const AVFilterPad audio3dscope_outputs[]
static
Initial value:
= {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.config_props = config_output,
},
}
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition avutil.h:200
config_output
static int config_output(AVBitStreamFilterLink *outlink)
Definition lcevc_merge.c:111

Definition at line 330 of file avf_a3dscope.c.

◆ ff_avf_a3dscope

const FFFilter ff_avf_a3dscope
Initial value:
= {
.p.name = "a3dscope",
.p.description = NULL_IF_CONFIG_SMALL("Convert input audio to 3d scope video output."),
.p.priv_class = &a3dscope_class,
.uninit = uninit,
.priv_size = sizeof(Audio3dScopeContext),
.activate = activate,
FILTER_INPUTS(audio3dscope_inputs),
FILTER_OUTPUTS(audio3dscope_outputs),
FILTER_QUERY_FUNC2(query_formats),
.process_command = ff_filter_process_command,
}
query_formats
static int query_formats(const AVFilterContext *ctx, AVFilterFormatsConfig **cfg_in, AVFilterFormatsConfig **cfg_out)
Definition aeval.c:246
audio3dscope_outputs
static const AVFilterPad audio3dscope_outputs[]
Definition avf_a3dscope.c:330
audio3dscope_inputs
static const AVFilterPad audio3dscope_inputs[]
Definition avf_a3dscope.c:322
ff_filter_process_command
int ff_filter_process_command(AVFilterContext *ctx, const char *cmd, const char *arg, char *res, int res_len, int flags)
Generic processing of user supplied commands that are set in the same way as the filter options.
Definition avfilter.c:906
uninit
static av_cold void uninit(AVBitStreamFilterContext *ctx)
Definition lcevc_merge.c:135
activate
static int activate(AVBitStreamFilterContext *ctx)
Definition lcevc_merge.c:144
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition filters.h:264
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition filters.h:265
FILTER_QUERY_FUNC2
#define FILTER_QUERY_FUNC2(func)
Definition filters.h:241
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:88

Definition at line 338 of file avf_a3dscope.c.

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