46 unsigned s0,
unsigned s1,
unsigned s2,
unsigned s3);
48 unsigned d0,
unsigned d1,
unsigned d2,
unsigned d3);
55 if (x >= 0 && x < w && y >= 0 && y < h)
61 unsigned s0,
unsigned s1,
unsigned s2,
unsigned s3)
68 if (s0 == c0 && s1 == c1 && s2 == c2 && s3 == c3)
74 unsigned s0,
unsigned s1,
unsigned s2,
unsigned s3)
81 if (s0 == c0 && s1 == c1 && s2 == c2 && s3 == c3)
87 unsigned s0,
unsigned s1,
unsigned s2,
unsigned s3)
93 if (s0 == c0 && s1 == c1 && s2 == c2)
99 unsigned s0,
unsigned s1,
unsigned s2,
unsigned s3)
105 if (s0 == c0 && s1 == c1 && s2 == c2)
111 unsigned s0,
unsigned s1,
unsigned s2,
unsigned s3)
121 unsigned s0,
unsigned s1,
unsigned s2,
unsigned s3)
131 unsigned d0,
unsigned d1,
unsigned d2,
unsigned d3)
137 unsigned d0,
unsigned d1,
unsigned d2,
unsigned d3)
143 unsigned d0,
unsigned d1,
unsigned d2,
unsigned d3)
151 unsigned d0,
unsigned d1,
unsigned d2,
unsigned d3)
159 unsigned d0,
unsigned d1,
unsigned d2,
unsigned d3)
168 unsigned d0,
unsigned d1,
unsigned d2,
unsigned d3)
285 const unsigned d0 = s->
d[0];
286 const unsigned d1 = s->
d[1];
287 const unsigned d2 = s->
d[2];
288 const unsigned d3 = s->
d[3];
293 const int w = frame->
width;
305 if (s->
S[i] != s->
d[i])
312 if (s->
is_same(frame, s->
x, s->
y, s0, s1, s2, s3)) {
328 if (s->
is_same(frame, x, y, s0, s1, s2, s3)) {
329 s->
set_pixel(frame, x, y, d0, d1, d2, d3);
404 #define OFFSET(x) offsetof(FloodfillContext, x) 405 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM 414 {
"d0",
"set destination #0 component value",
OFFSET(
d[0]),
AV_OPT_TYPE_INT, {.i64=0}, 0, UINT16_MAX, FLAGS },
415 {
"d1",
"set destination #1 component value",
OFFSET(
d[1]),
AV_OPT_TYPE_INT, {.i64=0}, 0, UINT16_MAX, FLAGS },
416 {
"d2",
"set destination #2 component value",
OFFSET(
d[2]),
AV_OPT_TYPE_INT, {.i64=0}, 0, UINT16_MAX, FLAGS },
417 {
"d3",
"set destination #3 component value",
OFFSET(
d[3]),
AV_OPT_TYPE_INT, {.i64=0}, 0, UINT16_MAX, FLAGS },
427 .priv_class = &floodfill_class,
430 .
inputs = floodfill_inputs,
void(* pick_pixel)(AVFrame *frame, int x, int y, int *s0, int *s1, int *s2, int *s3)
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
This structure describes decoded (raw) audio or video data.
#define AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_GBRAP10
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
static const AVFilterPad floodfill_outputs[]
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Main libavfilter public API header.
int h
agreed upon image height
#define AV_PIX_FMT_GBRP10
static int is_inside(int x, int y, int w, int h)
static void pick_pixel4_16(AVFrame *frame, int x, int y, int *s0, int *s1, int *s2, int *s3)
void * av_calloc(size_t nmemb, size_t size)
Non-inlined equivalent of av_mallocz_array().
#define AV_PIX_FMT_GRAY10
#define AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
Some filters support a generic "enable" expression option that can be used to enable or disable a fil...
const char * name
Pad name.
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
static int is_same1_16(AVFrame *frame, int x, int y, unsigned s0, unsigned s1, unsigned s2, unsigned s3)
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
static int config_input(AVFilterLink *inlink)
#define AV_PIX_FMT_YUV444P16
static void pick_pixel3_16(AVFrame *frame, int x, int y, int *s0, int *s1, int *s2, int *s3)
static int is_same4(AVFrame *frame, int x, int y, unsigned s0, unsigned s1, unsigned s2, unsigned s3)
A filter pad used for either input or output.
A link between two filters.
static void set_pixel4_16(AVFrame *frame, int x, int y, unsigned d0, unsigned d1, unsigned d2, unsigned d3)
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
void * priv
private data for use by the filter
#define AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_GBRAP12
void(* set_pixel)(AVFrame *frame, int x, int y, unsigned d0, unsigned d1, unsigned d2, unsigned d3)
#define AV_PIX_FMT_YUV444P10
static void set_pixel4(AVFrame *frame, int x, int y, unsigned d0, unsigned d1, unsigned d2, unsigned d3)
static void pick_pixel1(AVFrame *frame, int x, int y, int *s0, int *s1, int *s2, int *s3)
#define AV_PIX_FMT_GBRAP16
int w
agreed upon image width
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 inputs
#define AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_GRAY16
static int is_same3_16(AVFrame *frame, int x, int y, unsigned s0, unsigned s1, unsigned s2, unsigned s3)
typedef void(APIENTRY *FF_PFNGLACTIVETEXTUREPROC)(GLenum texture)
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 it should directly call filter_frame on the corresponding output For a if there are queued frames already one of these frames should be pushed If the filter should request a frame on one of its repeatedly until at least one frame has been pushed Return or at least make progress towards producing a frame
#define AV_PIX_FMT_YUVA444P10
#define AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_GBRP14
AVFILTER_DEFINE_CLASS(floodfill)
static const AVFilterPad outputs[]
int format
agreed upon media format
static int filter_frame(AVFilterLink *link, AVFrame *frame)
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
#define AV_PIX_FMT_GRAY14
static void set_pixel1(AVFrame *frame, int x, int y, unsigned d0, unsigned d1, unsigned d2, unsigned d3)
Describe the class of an AVClass context structure.
static int is_same3(AVFrame *frame, int x, int y, unsigned s0, unsigned s1, unsigned s2, unsigned s3)
const char * name
Filter name.
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 link
AVFilterLink ** outputs
array of pointers to output links
#define AV_PIX_FMT_GBRP12
int av_frame_make_writable(AVFrame *frame)
Ensure that the frame data is writable, avoiding data copy if possible.
#define flags(name, subs,...)
#define AV_PIX_FMT_YUV444P12
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
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 is_same4_16(AVFrame *frame, int x, int y, unsigned s0, unsigned s1, unsigned s2, unsigned s3)
static void set_pixel3(AVFrame *frame, int x, int y, unsigned d0, unsigned d1, unsigned d2, unsigned d3)
static void pick_pixel1_16(AVFrame *frame, int x, int y, int *s0, int *s1, int *s2, int *s3)
static void pick_pixel4(AVFrame *frame, int x, int y, int *s0, int *s1, int *s2, int *s3)
planar GBRA 4:4:4:4 32bpp
#define AV_PIX_FMT_YUVA444P9
AVFilterContext * dst
dest filter
static void pick_pixel3(AVFrame *frame, int x, int y, int *s0, int *s1, int *s2, int *s3)
static const AVOption floodfill_options[]
int(* is_same)(AVFrame *frame, int x, int y, unsigned s0, unsigned s1, unsigned s2, unsigned s3)
static int is_same1(AVFrame *frame, int x, int y, unsigned s0, unsigned s1, unsigned s2, unsigned s3)
static const AVFilterPad floodfill_inputs[]
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
static void set_pixel1_16(AVFrame *frame, int x, int y, unsigned d0, unsigned d1, unsigned d2, unsigned d3)
static void set_pixel3_16(AVFrame *frame, int x, int y, unsigned d0, unsigned d1, unsigned d2, unsigned d3)
int depth
Number of bits in the component.
AVPixelFormat
Pixel format.
static av_cold int query_formats(AVFilterContext *ctx)
static av_cold void uninit(AVFilterContext *ctx)