Go to the documentation of this file.
55 #define OFFSET(x) offsetof(MedianContext, x)
56 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
70 for (
int i = 0;
i < bins;
i++)
76 for (
int i = 0;
i < bins;
i++)
82 for (
int i = 0;
i < bins;
i++)
110 for (
int i = 0;
i <
s->nb_planes;
i++) {
111 if (!(
s->planes & (1 <<
i)))
114 if (
s->planewidth[
i] <
s->radius * 2 + 1) {
115 av_log(
inlink->dst,
AV_LOG_WARNING,
"The %d plane width %d must be not less than %d, clipping radius.\n",
i,
s->planewidth[
i],
s->radius * 2 + 1);
116 s->radius = (
s->planewidth[
i] - 1) / 2;
119 if (
s->planeheight[
i] <
s->radiusV * 2 + 1) {
120 av_log(
inlink->dst,
AV_LOG_WARNING,
"The %d plane height %d must be not less than %d, clipping radiusV.\n",
i,
s->planeheight[
i],
s->radiusV * 2 + 1);
121 s->radiusV = (
s->planeheight[
i] - 1) / 2;
125 s->t = (2 *
s->radius *
s->radiusV +
s->radiusV +
s->radius) * 2.
f *
s->percentile;
133 s->depth =
desc->comp[0].depth;
135 s->planewidth[0] =
s->planewidth[3] =
inlink->w;
137 s->planeheight[0] =
s->planeheight[3] =
inlink->h;
139 s->radiusV = !
s->radiusV ?
s->radius :
s->radiusV;
145 s->bins = 1 << ((
s->depth + 1) / 2);
146 s->fine_size =
s->bins *
s->bins *
inlink->w;
147 s->coarse_size =
s->bins *
inlink->w;
148 s->coarse =
av_calloc(
s->nb_threads,
sizeof(*
s->coarse));
150 if (!
s->coarse || !
s->fine)
152 for (
int i = 0;
i <
s->nb_threads;
i++) {
155 if (!
s->coarse[
i] || !
s->fine[
i])
164 case 8:
s->filter_plane = filter_plane_8;
break;
165 case 9:
s->filter_plane = filter_plane_9;
break;
166 case 10:
s->filter_plane = filter_plane_10;
break;
167 case 12:
s->filter_plane = filter_plane_12;
break;
168 case 14:
s->filter_plane = filter_plane_14;
break;
169 case 16:
s->filter_plane = filter_plane_16;
break;
186 for (
int plane = 0; plane <
s->nb_planes; plane++) {
187 const int h =
s->planeheight[plane];
188 const int w =
s->planewidth[plane];
189 const int slice_h_start = (
h * jobnr) / nb_jobs;
190 const int slice_h_end = (
h * (jobnr+1)) / nb_jobs;
192 if (!(
s->planes & (1 << plane))) {
194 out->linesize[plane],
197 w * ((
s->depth + 7) / 8),
198 slice_h_end - slice_h_start);
202 s->filter_plane(
ctx, in->
data[plane],
204 out->data[plane] + slice_h_start *
out->linesize[plane],
205 out->linesize[plane],
w,
h,
206 slice_h_start, slice_h_end, jobnr);
238 for (
int i = 0;
i <
s->nb_threads &&
s->coarse &&
s->fine;
i++) {
248 char *res,
int res_len,
int flags)
258 s->radiusV =
s->radius;
277 .priv_class = &median_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
#define AV_LOG_WARNING
Something somehow does not look correct.
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
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
#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.
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
#define AV_PIX_FMT_YUVA420P9
#define AV_PIX_FMT_GBRP14
@ 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
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
#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)
@ 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.
@ 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.
#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_YUV422P12
#define AV_PIX_FMT_YUV444P12
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.
#define i(width, name, range_min, range_max)
int w
agreed upon image width
#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.
void * av_calloc(size_t nmemb, size_t size)
#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
int ff_filter_execute(AVFilterContext *ctx, avfilter_action_func *func, void *arg, int *ret, int nb_jobs)
#define AV_PIX_FMT_YUVA422P12
@ AV_OPT_TYPE_INT
Underlying C type is int.
static const struct @457 planes[]
@ 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...
@ AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
#define flags(name, subs,...)
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)
#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