92 #define DEFINE_SMEAR(depth, type, div) \ 93 static int smear_slice ## depth(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) \ 95 ChromaShiftContext *s = ctx->priv; \ 96 AVFrame *in = s->in; \ 98 const int sulinesize = in->linesize[1] / div; \ 99 const int svlinesize = in->linesize[2] / div; \ 100 const int ulinesize = out->linesize[1] / div; \ 101 const int vlinesize = out->linesize[2] / div; \ 102 const int cbh = s->cbh; \ 103 const int cbv = s->cbv; \ 104 const int crh = s->crh; \ 105 const int crv = s->crv; \ 106 const int h = s->height[1]; \ 107 const int w = s->width[1]; \ 108 const int slice_start = (h * jobnr) / nb_jobs; \ 109 const int slice_end = (h * (jobnr+1)) / nb_jobs; \ 110 const type *su = (const type *)in->data[1]; \ 111 const type *sv = (const type *)in->data[2]; \ 112 type *du = (type *)out->data[1] + slice_start * ulinesize; \ 113 type *dv = (type *)out->data[2] + slice_start * vlinesize; \ 115 for (int y = slice_start; y < slice_end; y++) { \ 116 const int duy = av_clip(y - cbv, 0, h-1) * sulinesize; \ 117 const int dvy = av_clip(y - crv, 0, h-1) * svlinesize; \ 119 for (int x = 0; x < w; x++) { \ 120 du[x] = su[av_clip(x - cbh, 0, w - 1) + duy]; \ 121 dv[x] = sv[av_clip(x - crh, 0, w - 1) + dvy]; \ 134 #define DEFINE_WRAP(depth, type, div) \ 135 static int wrap_slice ## depth(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) \ 137 ChromaShiftContext *s = ctx->priv; \ 138 AVFrame *in = s->in; \ 139 AVFrame *out = arg; \ 140 const int sulinesize = in->linesize[1] / div; \ 141 const int svlinesize = in->linesize[2] / div; \ 142 const int ulinesize = out->linesize[1] / div; \ 143 const int vlinesize = out->linesize[2] / div; \ 144 const int cbh = s->cbh; \ 145 const int cbv = s->cbv; \ 146 const int crh = s->crh; \ 147 const int crv = s->crv; \ 148 const int h = s->height[1]; \ 149 const int w = s->width[1]; \ 150 const int slice_start = (h * jobnr) / nb_jobs; \ 151 const int slice_end = (h * (jobnr+1)) / nb_jobs; \ 152 const type *su = (const type *)in->data[1]; \ 153 const type *sv = (const type *)in->data[2]; \ 154 type *du = (type *)out->data[1] + slice_start * ulinesize; \ 155 type *dv = (type *)out->data[2] + slice_start * vlinesize; \ 157 for (int y = slice_start; y < slice_end; y++) { \ 158 int uy = (y - cbv) % h; \ 159 int vy = (y - crv) % h; \ 166 for (int x = 0; x < w; x++) { \ 167 int ux = (x - cbh) % w; \ 168 int vx = (x - crh) % w; \ 175 du[x] = su[ux + uy * sulinesize]; \ 176 dv[x] = sv[vx + vy * svlinesize]; \ 189 #define DEFINE_RGBASMEAR(depth, type, div) \ 190 static int rgbasmear_slice ## depth(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) \ 192 ChromaShiftContext *s = ctx->priv; \ 193 AVFrame *in = s->in; \ 194 AVFrame *out = arg; \ 195 const int srlinesize = in->linesize[2] / div; \ 196 const int sglinesize = in->linesize[0] / div; \ 197 const int sblinesize = in->linesize[1] / div; \ 198 const int salinesize = in->linesize[3] / div; \ 199 const int rlinesize = out->linesize[2] / div; \ 200 const int glinesize = out->linesize[0] / div; \ 201 const int blinesize = out->linesize[1] / div; \ 202 const int alinesize = out->linesize[3] / div; \ 203 const int rh = s->rh; \ 204 const int rv = s->rv; \ 205 const int gh = s->gh; \ 206 const int gv = s->gv; \ 207 const int bh = s->bh; \ 208 const int bv = s->bv; \ 209 const int ah = s->ah; \ 210 const int av = s->av; \ 211 const int h = s->height[1]; \ 212 const int w = s->width[1]; \ 213 const int slice_start = (h * jobnr) / nb_jobs; \ 214 const int slice_end = (h * (jobnr+1)) / nb_jobs; \ 215 const type *sr = (const type *)in->data[2]; \ 216 const type *sg = (const type *)in->data[0]; \ 217 const type *sb = (const type *)in->data[1]; \ 218 const type *sa = (const type *)in->data[3]; \ 219 type *dr = (type *)out->data[2] + slice_start * rlinesize; \ 220 type *dg = (type *)out->data[0] + slice_start * glinesize; \ 221 type *db = (type *)out->data[1] + slice_start * blinesize; \ 222 type *da = (type *)out->data[3] + slice_start * alinesize; \ 224 for (int y = slice_start; y < slice_end; y++) { \ 225 const int ry = av_clip(y - rv, 0, h-1) * srlinesize; \ 226 const int gy = av_clip(y - gv, 0, h-1) * sglinesize; \ 227 const int by = av_clip(y - bv, 0, h-1) * sblinesize; \ 230 for (int x = 0; x < w; x++) { \ 231 dr[x] = sr[av_clip(x - rh, 0, w - 1) + ry]; \ 232 dg[x] = sg[av_clip(x - gh, 0, w - 1) + gy]; \ 233 db[x] = sb[av_clip(x - bh, 0, w - 1) + by]; \ 240 if (s->nb_planes < 4) \ 242 ay = av_clip(y - av, 0, h-1) * salinesize; \ 243 for (int x = 0; x < w; x++) { \ 244 da[x] = sa[av_clip(x - ah, 0, w - 1) + ay]; \ 256 #define DEFINE_RGBAWRAP(depth, type, div) \ 257 static int rgbawrap_slice ## depth(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) \ 259 ChromaShiftContext *s = ctx->priv; \ 260 AVFrame *in = s->in; \ 261 AVFrame *out = arg; \ 262 const int srlinesize = in->linesize[2] / div; \ 263 const int sglinesize = in->linesize[0] / div; \ 264 const int sblinesize = in->linesize[1] / div; \ 265 const int salinesize = in->linesize[3] / div; \ 266 const int rlinesize = out->linesize[2] / div; \ 267 const int glinesize = out->linesize[0] / div; \ 268 const int blinesize = out->linesize[1] / div; \ 269 const int alinesize = out->linesize[3] / div; \ 270 const int rh = s->rh; \ 271 const int rv = s->rv; \ 272 const int gh = s->gh; \ 273 const int gv = s->gv; \ 274 const int bh = s->bh; \ 275 const int bv = s->bv; \ 276 const int ah = s->ah; \ 277 const int av = s->av; \ 278 const int h = s->height[1]; \ 279 const int w = s->width[1]; \ 280 const int slice_start = (h * jobnr) / nb_jobs; \ 281 const int slice_end = (h * (jobnr+1)) / nb_jobs; \ 282 const type *sr = (const type *)in->data[2]; \ 283 const type *sg = (const type *)in->data[0]; \ 284 const type *sb = (const type *)in->data[1]; \ 285 const type *sa = (const type *)in->data[3]; \ 286 type *dr = (type *)out->data[2] + slice_start * rlinesize; \ 287 type *dg = (type *)out->data[0] + slice_start * glinesize; \ 288 type *db = (type *)out->data[1] + slice_start * blinesize; \ 289 type *da = (type *)out->data[3] + slice_start * alinesize; \ 291 for (int y = slice_start; y < slice_end; y++) { \ 292 int ry = (y - rv) % h; \ 293 int gy = (y - gv) % h; \ 294 int by = (y - bv) % h; \ 303 for (int x = 0; x < w; x++) { \ 304 int rx = (x - rh) % w; \ 305 int gx = (x - gh) % w; \ 306 int bx = (x - bh) % w; \ 314 dr[x] = sr[rx + ry * srlinesize]; \ 315 dg[x] = sg[gx + gy * sglinesize]; \ 316 db[x] = sb[bx + by * sblinesize]; \ 323 if (s->nb_planes < 4) \ 325 for (int x = 0; x < w; x++) { \ 326 int ax = (x - ah) % w; \ 327 int ay = (x - av) % h; \ 333 da[x] = sa[ax + ay * salinesize]; \ 363 in->data[0], in->linesize[0],
404 char *res,
int res_len,
int flags)
415 #define OFFSET(x) offsetof(ChromaShiftContext, x) 416 #define VFR AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_RUNTIME_PARAM 450 .
name =
"chromashift",
453 .priv_class = &chromashift_class,
482 .priv_class = &rgbashift_class,
#define AV_PIX_FMT_YUVA422P16
#define AV_PIX_FMT_YUV440P10
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
This structure describes decoded (raw) audio or video data.
#define AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_GBRAP10
#define AV_PIX_FMT_YUVA422P10
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Main libavfilter public API header.
int h
agreed upon image height
#define AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_YUV420P12
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
static enum AVPixelFormat rgb_pix_fmts[]
#define AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
Some filters support a generic "enable" expression option that can be used to enable or disable a fil...
static const AVFilterPad inputs[]
const char * name
Pad name.
AVFilterLink ** inputs
array of pointers to input links
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
int(* filter_slice)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range...
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
#define AV_PIX_FMT_YUV444P16
#define AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUVA420P16
A filter pad used for either input or output.
A link between two filters.
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
static const AVOption rgbashift_options[]
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
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 const AVOption chromashift_options[]
void * priv
private data for use by the filter
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
#define AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_GBRAP12
#define AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_GBRAP16
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
int w
agreed upon image width
#define AV_PIX_FMT_YUV422P9
uint8_t nb_components
The number of components each pixel has, (1-4)
#define AV_PIX_FMT_GBRP16
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
#define DEFINE_RGBASMEAR(depth, type, div)
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
#define AV_PIX_FMT_YUVA444P12
#define AV_PIX_FMT_YUVA444P10
#define AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_GBRP14
int format
agreed upon media format
#define AV_PIX_FMT_YUV420P16
static const AVFilterPad outputs[]
#define AV_PIX_FMT_YUV420P14
static enum AVPixelFormat yuv_pix_fmts[]
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 DEFINE_WRAP(depth, type, div)
#define AV_PIX_FMT_YUV420P10
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Describe the class of an AVClass context structure.
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.
static int query_formats(AVFilterContext *ctx)
const char * name
Filter name.
#define AV_PIX_FMT_YUV440P12
#define AV_PIX_FMT_YUV420P9
AVFilterLink ** outputs
array of pointers to output links
static enum AVPixelFormat pix_fmts[]
#define AV_PIX_FMT_YUV422P14
#define AV_PIX_FMT_GBRP12
#define flags(name, subs,...)
AVFilterInternal * internal
An opaque struct for libavfilter internal use.
#define AV_PIX_FMT_YUV422P10
#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
#define DEFINE_RGBAWRAP(depth, type, div)
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
planar GBRA 4:4:4:4 32bpp
AVFilter ff_vf_chromashift
AVFILTER_DEFINE_CLASS(chromashift)
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
avfilter_execute_func * execute
AVFilterContext * dst
dest filter
static int config_input(AVFilterLink *inlink)
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
#define DEFINE_SMEAR(depth, type, div)
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.
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
int depth
Number of bits in the component.
AVPixelFormat
Pixel format.
const AVFilter * filter
the AVFilter of which this is an instance
#define AV_PIX_FMT_YUV422P16
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
#define AV_PIX_FMT_YUVA422P12
simple arithmetic expression evaluator
#define AV_CEIL_RSHIFT(a, b)