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31 #define OFFSET(x) offsetof(HysteresisContext, x)
32 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
50 ptrdiff_t blinesize, ptrdiff_t olinesize,
51 ptrdiff_t destlinesize,
99 if (
ctx->is_disabled) {
111 for (p = 0; p <
s->nb_planes; p++) {
112 if (!((1 << p) &
s->planes)) {
114 s->width[p],
s->height[p]);
119 for (y = 0; y <
s->height[p]; y++) {
120 memset(
out->data[p] + y *
out->linesize[p], 0,
s->width[p]);
125 memset(
s->map, 0,
s->width[0] *
s->height[0]);
126 memset(
s->xy, 0,
s->width[0] *
s->height[0] * 4);
132 s->width[p],
s->height[p]);
142 return s->map[x + y *
w];
147 s->map[x + y *
w] = 0xff;
148 s->xy[++
s->index] = (uint16_t)(x) << 16 | (uint16_t)y;
153 uint32_t
val =
s->xy[
s->index--];
156 *y =
val & 0x0000FFFF;
166 ptrdiff_t blinesize, ptrdiff_t alinesize,
170 const int t =
s->threshold;
173 for (y = 0; y <
h; y++) {
174 for (x = 0; x <
w; x++) {
175 if ((bsrc[x + y * blinesize] > t) && (asrc[x + y * alinesize] > t) && !
passed(
s, x, y,
w)) {
178 dst[x + y * dlinesize] = asrc[x + y * alinesize];
183 int x_min, x_max, y_min, y_max, yy, xx;
185 pop(
s, &posx, &posy);
187 x_min = posx > 0 ? posx - 1 : 0;
188 x_max = posx <
w - 1 ? posx + 1 : posx;
189 y_min = posy > 0 ? posy - 1 : 0;
190 y_max = posy <
h - 1 ? posy + 1 : posy;
192 for (yy = y_min; yy <= y_max; yy++) {
193 for (xx = x_min; xx <= x_max; xx++) {
194 if ((asrc[xx + yy * alinesize] > t) && !
passed(
s, xx, yy,
w)) {
195 dst[xx + yy * dlinesize] = asrc[xx + yy * alinesize];
208 ptrdiff_t blinesize, ptrdiff_t alinesize,
212 const uint16_t *bsrc = (
const uint16_t *)bbsrc;
213 const uint16_t *asrc = (
const uint16_t *)aasrc;
214 uint16_t *dst = (uint16_t *)ddst;
215 const int t =
s->threshold;
222 for (y = 0; y <
h; y++) {
223 for (x = 0; x <
w; x++) {
224 if ((bsrc[x + y * blinesize] > t) && (asrc[x + y * alinesize] > t) && !
passed(
s, x, y,
w)) {
227 dst[x + y * dlinesize] = asrc[x + y * alinesize];
232 int x_min, x_max, y_min, y_max, yy, xx;
234 pop(
s, &posx, &posy);
236 x_min = posx > 0 ? posx - 1 : 0;
237 x_max = posx <
w - 1 ? posx + 1 : posx;
238 y_min = posy > 0 ? posy - 1 : 0;
239 y_max = posy <
h - 1 ? posy + 1 : posy;
241 for (yy = y_min; yy <= y_max; yy++) {
242 for (xx = x_min; xx <= x_max; xx++) {
243 if ((asrc[xx + yy * alinesize] > t) && !
passed(
s, xx, yy,
w)) {
244 dst[xx + yy * dlinesize] = asrc[xx + yy * alinesize];
264 hsub =
desc->log2_chroma_w;
265 vsub =
desc->log2_chroma_h;
267 s->height[0] =
s->height[3] =
inlink->h;
269 s->width[0] =
s->width[3] =
inlink->w;
271 s->depth =
desc->comp[0].depth;
273 if (
desc->comp[0].depth == 8)
304 "(size %dx%d) do not match the corresponding "
305 "second input link %s parameters (size %dx%d)\n",
307 ctx->input_pads[1].name,
312 outlink->
w =
base->w;
313 outlink->
h =
base->h;
321 in[0].time_base =
base->time_base;
378 .
name =
"hysteresis",
379 .description =
NULL_IF_CONFIG_SMALL(
"Grow first stream into second stream by connecting components."),
380 .preinit = hysteresis_framesync_preinit,
387 .priv_class = &hysteresis_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
int ff_framesync_configure(FFFrameSync *fs)
Configure a frame sync structure.
AVPixelFormat
Pixel format.
static int config_output(AVFilterLink *outlink)
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
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.
#define AV_PIX_FMT_YUVA420P16
#define AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUV420P10
static int is_empty(HysteresisContext *s)
@ 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.
static int query_formats(AVFilterContext *ctx)
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
@ 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
static const AVFilterPad hysteresis_inputs[]
#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_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
#define AV_PIX_FMT_YUV422P16
static int activate(AVFilterContext *ctx)
@ 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)
AVRational sample_aspect_ratio
agreed upon sample aspect ratio
static const AVFilterPad outputs[]
AVRational frame_rate
Frame rate of the stream on the link, or 1/0 if unknown or variable; if left to 0/0,...
static enum AVPixelFormat pix_fmts[]
#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)
@ 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
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,...)
static void push(HysteresisContext *s, int x, int y, int w)
@ 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 int process_frame(FFFrameSync *fs)
void(* hysteresis)(struct HysteresisContext *s, const uint8_t *bsrc, const uint8_t *osrc, uint8_t *dst, ptrdiff_t blinesize, ptrdiff_t olinesize, ptrdiff_t destlinesize, int w, int h)
#define AV_PIX_FMT_YUV422P10
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
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
static const AVOption hysteresis_options[]
static const struct @314 planes[]
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
int format
agreed upon media format
#define AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV444P12
AVFilterContext * src
source filter
const char const char void * val
@ AV_PIX_FMT_YUVA444P
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
#define AV_PIX_FMT_YUVA444P10
FRAMESYNC_DEFINE_CLASS(hysteresis, HysteresisContext, fs)
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(const int16_t *) pi >> 8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(const int32_t *) pi >> 24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31)))) #define SET_CONV_FUNC_GROUP(ofmt, ifmt) static void set_generic_function(AudioConvert *ac) { } void ff_audio_convert_free(AudioConvert **ac) { if(! *ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);} AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, int sample_rate, int apply_map) { AudioConvert *ac;int in_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) return NULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method !=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt) > 2) { ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc) { av_free(ac);return NULL;} return ac;} in_planar=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);if(in_planar==out_planar) { ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar ? ac->channels :1;} else if(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;else ac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_AARCH64) ff_audio_convert_init_aarch64(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);return ac;} int ff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in) { int use_generic=1;int len=in->nb_samples;int p;if(ac->dc) { av_log(ac->avr, AV_LOG_TRACE, "%d samples - audio_convert: %s to %s (dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));return ff_convert_dither(ac-> in
int w
agreed upon image width
#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
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
void * av_calloc(size_t nmemb, size_t size)
Non-inlined equivalent of av_mallocz_array().
int h
agreed upon image height
static void hysteresis16(HysteresisContext *s, const uint8_t *bbsrc, const uint8_t *aasrc, uint8_t *ddst, ptrdiff_t blinesize, ptrdiff_t alinesize, ptrdiff_t dlinesize, int w, int h)
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)
static const AVFilterPad hysteresis_outputs[]
@ 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 av_cold void uninit(AVFilterContext *ctx)
static int config_input(AVFilterLink *inlink)
@ 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...
#define flags(name, subs,...)
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
@ 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
int ff_framesync_activate(FFFrameSync *fs)
Examine the frames in the filter's input and try to produce output.
#define AV_PIX_FMT_GRAY12
AVFilter ff_vf_hysteresis
static int passed(HysteresisContext *s, int x, int y, int w)
static void hysteresis8(HysteresisContext *s, const uint8_t *bsrc, const uint8_t *asrc, uint8_t *dst, ptrdiff_t blinesize, ptrdiff_t alinesize, ptrdiff_t dlinesize, int w, int h)
@ AV_PIX_FMT_YUVA422P
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
#define AV_PIX_FMT_YUV420P14
static void pop(HysteresisContext *s, int *x, int *y)