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54 #define OFFSET(x) offsetof(LimitDiffContext, x)
55 #define TFLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
56 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
89 const uint8_t *
source,
const uint8_t *reference,
90 int thr1,
int thr2,
int w,
int depth)
92 for (
int x = 0; x <
w; x++) {
94 const int diff_ref =
FFABS(filtered[x] - reference[x]);
98 else if (diff_ref >= thr2)
106 const uint8_t *ssource,
const uint8_t *rreference,
107 int thr1,
int thr2,
int w,
int depth)
109 const uint16_t *
source = (
const uint16_t *)ssource;
110 const uint16_t *filtered = (
const uint16_t *)ffiltered;
111 const uint16_t *reference = (
const uint16_t *)rreference;
112 uint16_t *
dst = (uint16_t *)ddst;
114 for (
int x = 0; x <
w; x++) {
116 const int diff_ref =
FFABS(filtered[x] - reference[x]);
118 if (diff_ref <= thr1)
119 dst[x] = filtered[x];
120 else if (diff_ref >= thr2)
140 vsub =
desc->log2_chroma_h;
142 s->planeheight[0] =
s->planeheight[3] =
inlink->h;
144 s->planewidth[0] =
s->planewidth[3] =
inlink->w;
146 s->depth =
desc->comp[0].depth;
147 s->thr1 =
s->threshold * ((1 <<
s->depth) - 1);
148 s->thr2 =
s->thr1 *
s->elasticity;
150 if (
desc->comp[0].depth == 8)
161 const int depth =
s->depth;
164 for (
int p = 0; p <
s->nb_planes; p++) {
168 const ptrdiff_t dst_linesize = td->
dst->
linesize[p];
169 const int thr1 =
s->thr1;
170 const int thr2 =
s->thr2;
171 const int w =
s->planewidth[p];
172 const int h =
s->planeheight[p];
174 const int slice_end = (
h * (jobnr+1)) / nb_jobs;
180 if (!((1 << p) &
s->planes)) {
187 s->limitdiff(filtered,
dst,
source, reference, thr1, thr2,
w, depth);
190 filtered += filtered_linesize;
191 source += source_linesize;
192 reference += reference_linesize;
215 if (
ctx->is_disabled) {
253 "(size %dx%d) do not match the corresponding "
254 "second input link %s parameters (%dx%d)\n",
255 ctx->input_pads[0].name, filtered->
w, filtered->
h,
263 if (filtered->
w != reference->
w || filtered->
h != reference->
h) {
265 "(size %dx%d) do not match the corresponding "
266 "third input link %s parameters (%dx%d)\n",
267 ctx->input_pads[0].name, filtered->
w, filtered->
h,
268 ctx->input_pads[1].name, reference->
w, reference->
h);
273 outlink->
w = filtered->
w;
274 outlink->
h = filtered->
h;
331 pad.
name =
"reference";
360 .priv_class = &limitdiff_class,
static const AVFilterPad limitdiff_outputs[]
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
static void limitdiff8(const uint8_t *filtered, uint8_t *dst, const uint8_t *source, const uint8_t *reference, int thr1, int thr2, int w, int depth)
#define AV_PIX_FMT_GBRAP16
AVRational time_base
Time base for the incoming frames.
int ff_framesync_configure(FFFrameSync *fs)
Configure a frame sync structure.
AVPixelFormat
Pixel format.
static int process_frame(FFFrameSync *fs)
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)
void ff_framesync_uninit(FFFrameSync *fs)
Free all memory currently allocated.
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)
int ff_framesync_get_frame(FFFrameSync *fs, unsigned in, AVFrame **rframe, unsigned get)
Get the current frame in an input.
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_YUVA422P9
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
static const struct @467 planes[]
#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.
@ EXT_INFINITY
Extend the frame to infinity.
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.
Link properties exposed to filter code, but not external callers.
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
#define AV_PIX_FMT_YUVA420P9
@ EXT_STOP
Completely stop all streams with this one.
#define AV_PIX_FMT_GBRP14
int ff_append_inpad(AVFilterContext *f, AVFilterPad *p)
Append a new input/output pad to the filter's list of such pads.
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 int init(AVFilterContext *ctx)
#define AV_PIX_FMT_YUV422P9
void(* limitdiff)(const uint8_t *filtered, uint8_t *dst, const uint8_t *source, const uint8_t *reference, int thr1, int thr2, int w, int depth)
#define AV_PIX_FMT_GRAY16
unsigned sync
Synchronization level: frames on input at the highest sync level will generate output frame events.
#define AVFILTER_FLAG_DYNAMIC_INPUTS
The number of the filter inputs is not determined just by AVFilter.inputs.
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_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
#define AV_PIX_FMT_YUV422P16
@ 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
int av_image_fill_linesizes(int linesizes[4], enum AVPixelFormat pix_fmt, int width)
Fill plane linesizes for an image with pixel format pix_fmt and width width.
#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)
AVRational sample_aspect_ratio
agreed upon sample aspect ratio
#define AV_PIX_FMT_YUVA444P12
#define AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_GRAY14
AVFrame * av_frame_clone(const AVFrame *src)
Create a new frame that references the same data as src.
int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq)
Rescale a 64-bit integer by 2 rational numbers.
@ 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 FFABS(a)
Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable ...
#define AV_PIX_FMT_GRAY10
#define AV_PIX_FMT_GBRP16
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.
#define fs(width, name, subs,...)
@ AV_PIX_FMT_YUVJ420P
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
AVFILTER_DEFINE_CLASS(limitdiff)
#define AV_PIX_FMT_YUV422P10
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
static int config_output(AVFilterLink *outlink)
const AVFilter ff_vf_limitdiff
static FilterLink * ff_filter_link(AVFilterLink *link)
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a source
int(* config_props)(AVFilterLink *link)
Link configuration callback.
static void limitdiff16(const uint8_t *ffiltered, uint8_t *ddst, const uint8_t *ssource, const uint8_t *rreference, int thr1, int thr2, int w, int depth)
#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
AVFilterContext * src
source filter
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.
static av_always_inline int diff(const struct color_info *a, const struct color_info *b, const int trans_thresh)
static const AVOption limitdiff_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
@ AV_OPT_TYPE_FLOAT
Underlying C type is float.
static int activate(AVFilterContext *ctx)
int w
agreed upon image width
#define AV_PIX_FMT_GBRP12
static int config_input(AVFilterLink *inlink)
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Used for passing data between threads.
static enum AVPixelFormat pix_fmts[]
@ 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.
static av_cold void uninit(AVFilterContext *ctx)
#define AV_PIX_FMT_YUV444P9
static int slice_start(SliceContext *sc, VVCContext *s, VVCFrameContext *fc, const CodedBitstreamUnit *unit, const int is_first_slice)
#define AV_PIX_FMT_YUVA444P9
int ff_framesync_init(FFFrameSync *fs, AVFilterContext *parent, unsigned nb_in)
Initialize a frame sync structure.
#define AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV422P14
enum FFFrameSyncExtMode before
Extrapolation mode for timestamps before the first frame.
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.
AVRational time_base
Define the time base used by the PTS of the frames/samples which will pass through this link.
@ 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_OPT_TYPE_BOOL
Underlying C type is int.
@ AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
#define AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL
Same as AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC, except that the filter will have its filter_frame() c...
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)
enum FFFrameSyncExtMode after
Extrapolation mode for timestamps after the last frame.
#define AV_PIX_FMT_YUV440P12
AVRational frame_rate
Frame rate of the stream on the link, or 1/0 if unknown or variable.
#define AV_PIX_FMT_YUV444P14
int ff_framesync_activate(FFFrameSync *fs)
Examine the frames in the filter's input and try to produce output.
#define AV_PIX_FMT_GRAY12
static int limitdiff_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
@ AV_PIX_FMT_YUVA422P
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
#define AV_PIX_FMT_YUV420P14