Go to the documentation of this file.
45 #define OFFSET(x) offsetof(DBlurContext, x)
46 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
57 #define f(n, m) (dst[(n) * width + (m)])
62 const float b0 =
s->b0;
63 const float b1 =
s->b1;
66 float *dst =
s->buffer;
70 for (
int y = 1; y <
height; y++) {
71 g = q *
f(y, 0) +
c *
f(y, 0);
72 for (
int x = 0; x <
width; x++) {
73 f(y, x) =
b0 *
f(y, x) +
b1 *
f(y - 1, x) +
g;
74 g = q *
f(y, x) +
c *
f(y - 1, x);
78 for (
int y =
height - 2; y >= 0; y--) {
80 for (
int x =
width - 1; x >= 0; x--) {
81 f(y, x) =
b0 *
f(y, x) +
b1 *
f(y + 1, x) +
g;
82 g = q *
f(y, x) +
c *
f(y + 1, x);
86 for (
int y = 1; y <
height; y++) {
88 for (
int x =
width - 1; x >= 0; x--) {
89 f(y, x) =
b0 *
f(y, x) +
b1 *
f(y - 1, x) +
g;
90 g = q *
f(y, x) +
c *
f(y - 1, x);
94 for (
int y =
height - 2; y >= 0; y--) {
95 g = q *
f(y, 0) +
c *
f(y, 0);
96 for (
int x = 0; x <
width; x++) {
97 f(y, x) =
b0 *
f(y, x) +
b1 *
f(y + 1, x) +
g;
98 g = q *
f(y, x) +
c *
f(y + 1, x);
109 const int width =
s->planewidth[plane];
110 const int height =
s->planeheight[plane];
152 s->depth =
desc->comp[0].depth;
154 s->planewidth[0] =
s->planewidth[3] =
inlink->w;
156 s->planeheight[0] =
s->planeheight[3] =
inlink->h;
169 float mu, nu,
R1,
R2, w1, w2;
172 angle = angle *
M_PI / 180.f;
176 R1 = (mu *
r) * (mu *
r);
177 R2 = (nu *
r) * (nu *
r);
178 s->R3 = mu * nu *
r *
r;
181 a0 = (w1 + 0.5f) * (w2 + 0.5
f) -
fabsf(
s->R3);
212 for (plane = 0; plane <
s->nb_planes; plane++) {
213 const int height =
s->planeheight[plane];
214 const int width =
s->planewidth[plane];
215 float *bptr =
s->buffer;
216 const uint8_t *
src = in->
data[plane];
217 const uint16_t *src16 = (
const uint16_t *)in->
data[plane];
218 const float *src32 = (
const float *)in->
data[plane];
219 uint8_t *dst =
out->data[plane];
220 uint16_t *dst16 = (uint16_t *)
out->data[plane];
221 float *dst32 = (
float *)
out->data[plane];
224 if (!(
s->planes & (1 << plane))) {
233 for (y = 0; y <
height; y++) {
234 for (x = 0; x <
width; x++) {
240 }
else if (
s->depth <= 16) {
241 for (y = 0; y <
height; y++) {
242 for (x = 0; x <
width; x++) {
249 for (y = 0; y <
height; y++) {
250 for (x = 0; x <
width; x++) {
251 memcpy(bptr, src32,
width *
sizeof(
float));
262 for (y = 0; y <
height; y++) {
263 for (x = 0; x <
width; x++) {
267 dst +=
out->linesize[plane];
269 }
else if (
s->depth <= 16) {
270 for (y = 0; y <
height; y++) {
271 for (x = 0; x <
width; x++) {
275 dst16 +=
out->linesize[plane] / 2;
278 for (y = 0; y <
height; y++) {
279 for (x = 0; x <
width; x++) {
280 memcpy(dst32, bptr,
width *
sizeof(
float));
283 dst32 +=
out->linesize[plane] / 4;
306 .priv_class = &dblur_class,
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
#define AV_PIX_FMT_YUVA422P16
#define AV_PIX_FMT_GBRAP16
AVPixelFormat
Pixel format.
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later. That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another. Frame references ownership and permissions
#define FILTER_PIXFMTS_ARRAY(array)
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
static const AVFilterPad dblur_inputs[]
The exact code depends on how similar the blocks are and how related they are to the and needs to apply these operations to the correct inlink or outlink if there are several Macros are available to factor that when no extra processing is inlink
static int config_input(AVFilterLink *inlink)
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
#define AV_PIX_FMT_YUVA422P9
#define FILTER_INPUTS(array)
This structure describes decoded (raw) audio or video data.
static av_always_inline av_const unsigned av_clip_uintp2_c(int a, int p)
Clip a signed integer to an unsigned power of two range.
#define AV_PIX_FMT_YUVA420P16
#define AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUV420P10
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
const char * name
Filter name.
A link between two filters.
#define AV_PIX_FMT_YUVA422P10
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
void av_image_copy_plane(uint8_t *dst, int dst_linesize, const uint8_t *src, int src_linesize, int bytewidth, int height)
Copy image plane from src to dst.
AVFILTER_DEFINE_CLASS(dblur)
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
#define AV_PIX_FMT_YUVA420P9
#define AV_PIX_FMT_GBRP14
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
static double b1(void *priv, double x, double y)
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
#define AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_GRAY16
static double a2(void *priv, double x, double y)
static __device__ float fabsf(float a)
A filter pad used for either input or output.
#define AV_PIX_FMT_YUV444P10
@ AV_PIX_FMT_YUVJ411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
#define AV_PIX_FMT_YUV422P16
const AVFilterPad ff_video_default_filterpad[1]
An AVFilterPad array whose only entry has name "default" and is of type AVMEDIA_TYPE_VIDEO.
@ AV_PIX_FMT_YUVJ422P
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
#define AV_PIX_FMT_GBRAP10
static void diriir2d(AVFilterContext *ctx, int plane)
#define AV_PIX_FMT_GBRAP12
@ AV_PIX_FMT_YUVA420P
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
#define AV_PIX_FMT_YUV444P16
#define AV_CEIL_RSHIFT(a, b)
static enum AVPixelFormat pix_fmts[]
#define AV_PIX_FMT_YUVA444P12
#define AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_GRAY14
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
static int filter_horizontally(AVFilterContext *ctx, int width, int height)
#define FILTER_OUTPUTS(array)
#define AV_PIX_FMT_GRAYF32
@ AV_PIX_FMT_YUVJ444P
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
#define AV_PIX_FMT_GRAY10
#define AV_PIX_FMT_GBRP16
static void set_params(DBlurContext *s, float angle, float r)
Describe the class of an AVClass context structure.
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
static double a3(void *priv, double x, double y)
@ AV_PIX_FMT_YUVJ420P
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
static __device__ float sqrtf(float a)
#define AV_PIX_FMT_YUV422P10
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Undefined Behavior In the C some operations are like signed integer dereferencing freed accessing outside allocated Undefined Behavior must not occur in a C it is not safe even if the output of undefined operations is unused The unsafety may seem nit picking but Optimizing compilers have in fact optimized code on the assumption that no undefined Behavior occurs Optimizing code based on wrong assumptions can and has in some cases lead to effects beyond the output of computations The signed integer overflow problem in speed critical code Code which is highly optimized and works with signed integers sometimes has the problem that often the output of the computation does not c
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
#define AV_PIX_FMT_GBRPF32
#define AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV444P12
const AVFilter ff_vf_dblur
int av_frame_is_writable(AVFrame *frame)
Check if the frame data is writable.
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.
@ AV_PIX_FMT_YUVA444P
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
static double a0(void *priv, double x, double y)
#define AV_PIX_FMT_YUVA444P10
#define AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
Some filters support a generic "enable" expression option that can be used to enable or disable a fil...
@ AV_OPT_TYPE_FLOAT
Underlying C type is float.
int w
agreed upon image width
#define av_malloc_array(a, b)
#define AV_PIX_FMT_GBRP12
@ AV_PIX_FMT_YUVJ440P
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range
const char * name
Pad name.
#define AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUVA444P9
#define AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV422P14
int h
agreed upon image height
#define AV_PIX_FMT_YUVA422P12
static av_cold void uninit(AVFilterContext *ctx)
@ AV_OPT_TYPE_INT
Underlying C type is int.
#define AV_PIX_FMT_GBRAPF32
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
static const AVOption dblur_options[]
@ AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
int linesize[AV_NUM_DATA_POINTERS]
For video, a positive or negative value, which is typically indicating the size in bytes of each pict...
@ AV_PIX_FMT_YUV410P
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
static double b0(void *priv, double x, double y)
static double a1(void *priv, double x, double y)
#define AV_PIX_FMT_YUV440P12
#define AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_GRAY12
static const struct @450 planes[]
@ AV_PIX_FMT_YUVA422P
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
#define AV_PIX_FMT_YUV420P14