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40 #define OFFSET(x) offsetof(GBlurContext, x)
41 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
66 const float boundaryscale =
s->boundaryscale;
67 const int steps =
s->steps;
68 const float nu =
s->nu;
70 float *localbuf =
NULL;
76 steps, nu, boundaryscale, localbuf);
88 const float boundaryscale =
s->boundaryscaleV;
89 const int steps =
s->steps;
90 const float nu =
s->nuV;
94 steps, nu, boundaryscale);
103 const float max =
s->flt ? FLT_MAX : (1 <<
s->depth) - 1;
104 const float min =
s->flt ? -FLT_MAX : 0.f;
110 const float postscale =
s->postscale *
s->postscaleV;
122 const int width =
s->planewidth[plane];
123 const int height =
s->planeheight[plane];
127 if (
s->sigma < 0 ||
s->steps < 0)
179 s->depth =
desc->comp[0].depth;
182 s->planewidth[0] =
s->planewidth[3] =
inlink->w;
184 s->planeheight[0] =
s->planeheight[3] =
inlink->h;
193 s->sigmaV =
s->sigma;
204 lambda = (sigma * sigma) / (2.0 *
steps);
205 dnu = (1.0 + 2.0 * lambda - sqrt(1.0 + 4.0 * lambda)) / (2.0 * lambda);
207 *boundaryscale = 1.0 / (1.0 - dnu);
211 if (!isnormal(*boundaryscale))
212 *boundaryscale = 1.
f;
225 set_params(
s->sigma,
s->steps, &
s->postscale, &
s->boundaryscale, &
s->nu);
226 set_params(
s->sigmaV,
s->steps, &
s->postscaleV, &
s->boundaryscaleV, &
s->nuV);
239 for (plane = 0; plane <
s->nb_planes; plane++) {
240 const int height =
s->planeheight[plane];
241 const int width =
s->planewidth[plane];
242 float *bptr =
s->buffer;
243 const uint8_t *
src = in->
data[plane];
244 const uint16_t *src16 = (
const uint16_t *)in->
data[plane];
245 uint8_t *
dst =
out->data[plane];
246 uint16_t *dst16 = (uint16_t *)
out->data[plane];
249 if (!(
s->planes & (1 << plane))) {
261 }
else if (
s->depth == 8) {
262 for (y = 0; y <
height; y++) {
263 for (x = 0; x <
width; x++) {
270 for (y = 0; y <
height; y++) {
271 for (x = 0; x <
width; x++) {
284 (uint8_t *)bptr,
width *
sizeof(
float),
286 }
else if (
s->depth == 8) {
287 for (y = 0; y <
height; y++) {
288 for (x = 0; x <
width; x++)
291 dst +=
out->linesize[plane];
294 for (y = 0; y <
height; y++) {
295 for (x = 0; x <
width; x++)
296 dst16[x] =
lrintf(bptr[x]);
298 dst16 +=
out->linesize[plane] / 2;
321 .priv_class = &gblur_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)
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
#define AV_PIX_FMT_FLAG_FLOAT
The pixel format contains IEEE-754 floating point values.
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.
#define AV_PIX_FMT_YUVA420P16
#define AV_PIX_FMT_YUVA420P10
static const struct @467 planes[]
#define AV_PIX_FMT_YUV420P10
static int filter_horizontally(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int filter_vertically(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
@ 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.
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
#define AV_PIX_FMT_YUVA420P9
#define AV_PIX_FMT_GBRP14
static int slice_end(AVCodecContext *avctx, AVFrame *pict, int *got_output)
Handle slice ends.
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
#define AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_YUVA444P16
static av_cold void uninit(AVFilterContext *ctx)
#define AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_GRAY16
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 ...
static const AVFilterPad gblur_inputs[]
#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 int filter_postscale(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
#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)
#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)
#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
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
static int config_input(AVFilterLink *inlink)
@ AV_PIX_FMT_YUVJ420P
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
#define AV_PIX_FMT_YUV422P10
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
static const FLOAT postscale[64]
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
uint8_t ptrdiff_t const uint8_t ptrdiff_t int intptr_t intptr_t int int16_t * dst
#define AV_PIX_FMT_GBRPF32
#define AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV444P12
int av_frame_is_writable(AVFrame *frame)
Check if the frame data is writable.
static const AVOption gblur_options[]
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)
#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
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
#define av_malloc_array(a, b)
#define AV_PIX_FMT_GBRP12
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Used for passing data between threads.
@ 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
static int slice_start(SliceContext *sc, VVCContext *s, VVCFrameContext *fc, const CodedBitstreamUnit *unit, const int is_first_slice)
AVFILTER_DEFINE_CLASS(gblur)
static av_unused void ff_gblur_init(GBlurContext *s)
#define AV_PIX_FMT_YUVA444P9
static void set_params(float sigma, int steps, float *postscale, float *boundaryscale, float *nu)
#define AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV422P14
const AVFilter ff_vf_gblur
static const int16_t steps[16]
int h
agreed upon image height
int ff_filter_execute(AVFilterContext *ctx, avfilter_action_func *func, void *arg, int *ret, int nb_jobs)
the frame and frame reference mechanism is intended to as much as expensive copies of that data while still allowing the filters to produce correct results The data is stored in buffers represented by AVFrame structures Several references can point to the same frame buffer
#define AV_PIX_FMT_YUVA422P12
@ 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
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
@ 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 void gaussianiir2d(AVFilterContext *ctx, int plane)
@ 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 enum AVPixelFormat pix_fmts[]
#define AV_PIX_FMT_YUV440P12
#define AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_GRAY12
@ AV_PIX_FMT_YUVA422P
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
#define AV_PIX_FMT_YUV420P14