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"
#include "internal.h"

Go to the source code of this file.

Data Structures
struct	Audio3dScopeContext

Macros
#define	OFFSET(x)   offsetof(Audio3dScopeContext, 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 (AVFilterContext *ctx)
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 AVFilter	ff_avf_a3dscope

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

offsetof(Audio3dScopeContext, x)

Definition at line 52 of file avf_a3dscope.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Definition at line 53 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 54 of file avf_a3dscope.c.

Function Documentation

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

a3dscope

)

query_formats()

static int query_formats ( AVFilterContext *  ctx )

static

Definition at line 77 of file avf_a3dscope.c.

config_input()

static int config_input ( AVFilterLink *  inlink )

static

Definition at line 106 of file avf_a3dscope.c.

config_output()

static int config_output ( AVFilterLink *  outlink )

static

Definition at line 116 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 129 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 144 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 152 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 160 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 165 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 209 of file avf_a3dscope.c.

Referenced by filter_frame().

filter_frame()

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

static

Definition at line 222 of file avf_a3dscope.c.

Referenced by activate().

activate()

static int activate ( AVFilterContext *  ctx )

static

Definition at line 296 of file avf_a3dscope.c.

uninit()

static av_cold void uninit ( AVFilterContext *  ctx )

static

Definition at line 323 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 }
}

Definition at line 56 of file avf_a3dscope.c.

audio3dscope_inputs

const AVFilterPad audio3dscope_inputs[]

static

Initial value:

= {
    {
        .name         = "default",
        .type         = AVMEDIA_TYPE_AUDIO,
        .config_props = config_input,
    },
}

Definition at line 331 of file avf_a3dscope.c.

audio3dscope_outputs

const AVFilterPad audio3dscope_outputs[]

static

Initial value:

= {
    {
        .name         = "default",
        .type         = AVMEDIA_TYPE_VIDEO,
        .config_props = config_output,
    },
}

Definition at line 339 of file avf_a3dscope.c.

ff_avf_a3dscope

const AVFilter ff_avf_a3dscope

Initial value:

= {
    .name          = "a3dscope",
    .description   = NULL_IF_CONFIG_SMALL("Convert input audio to 3d scope video output."),
    .uninit        = uninit,
    .priv_size     = sizeof(Audio3dScopeContext),
    .activate      = activate,
    FILTER_INPUTS(audio3dscope_inputs),
    FILTER_OUTPUTS(audio3dscope_outputs),
    FILTER_QUERY_FUNC(query_formats),
    .priv_class    = &a3dscope_class,
    .process_command = ff_filter_process_command,
}

Definition at line 347 of file avf_a3dscope.c.