Go to the documentation of this file.
27 #include "config_components.h"
66 uint16_t
lut[4][256 * 256];
85 #define OFFSET(x) offsetof(LutContext, x)
86 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
108 for (
i = 0;
i < 4;
i++) {
115 #define YUV_FORMATS \
116 AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV420P, \
117 AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV440P, \
118 AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P, \
119 AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P, \
120 AV_PIX_FMT_YUVJ440P, \
121 AV_PIX_FMT_YUV444P9LE, AV_PIX_FMT_YUV422P9LE, AV_PIX_FMT_YUV420P9LE, \
122 AV_PIX_FMT_YUV444P10LE, AV_PIX_FMT_YUV422P10LE, AV_PIX_FMT_YUV420P10LE, AV_PIX_FMT_YUV440P10LE, \
123 AV_PIX_FMT_YUV444P12LE, AV_PIX_FMT_YUV422P12LE, AV_PIX_FMT_YUV420P12LE, AV_PIX_FMT_YUV440P12LE, \
124 AV_PIX_FMT_YUV444P14LE, AV_PIX_FMT_YUV422P14LE, AV_PIX_FMT_YUV420P14LE, \
125 AV_PIX_FMT_YUV444P16LE, AV_PIX_FMT_YUV422P16LE, AV_PIX_FMT_YUV420P16LE, \
126 AV_PIX_FMT_YUVA444P16LE, AV_PIX_FMT_YUVA422P16LE, AV_PIX_FMT_YUVA420P16LE
128 #define RGB_FORMATS \
129 AV_PIX_FMT_ARGB, AV_PIX_FMT_RGBA, \
130 AV_PIX_FMT_ABGR, AV_PIX_FMT_BGRA, \
131 AV_PIX_FMT_RGB24, AV_PIX_FMT_BGR24, \
132 AV_PIX_FMT_RGB48LE, AV_PIX_FMT_RGBA64LE, \
133 AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP, \
134 AV_PIX_FMT_GBRP9LE, AV_PIX_FMT_GBRP10LE, \
135 AV_PIX_FMT_GBRAP10LE, \
136 AV_PIX_FMT_GBRP12LE, AV_PIX_FMT_GBRP14LE, \
137 AV_PIX_FMT_GBRP16LE, AV_PIX_FMT_GBRAP12LE, \
140 #define GRAY_FORMATS \
141 AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY9LE, AV_PIX_FMT_GRAY10LE, \
142 AV_PIX_FMT_GRAY12LE, AV_PIX_FMT_GRAY14LE, AV_PIX_FMT_GRAY16LE
183 return pow((
val-minval)/(maxval-minval), gamma) * (maxval-minval)+minval;
195 double level = (
val - minval) / (maxval - minval);
197 : 1.099 * pow(
level, 1.0 / gamma) - 0.099;
198 return level * (maxval - minval) + minval;
224 s->hsub =
desc->log2_chroma_w;
225 s->vsub =
desc->log2_chroma_h;
229 s->is_16bit =
desc->comp[0].depth > 8;
267 min[
Y] = 16 * (1 << (
desc->comp[0].depth - 8));
268 min[
U] = 16 * (1 << (
desc->comp[1].depth - 8));
269 min[
V] = 16 * (1 << (
desc->comp[2].depth - 8));
271 max[
Y] = 235 * (1 << (
desc->comp[0].depth - 8));
272 max[
U] = 240 * (1 << (
desc->comp[1].depth - 8));
273 max[
V] = 240 * (1 << (
desc->comp[2].depth - 8));
274 max[
A] = (1 <<
desc->comp[0].depth) - 1;
286 s->is_yuv =
s->is_rgb = 0;
295 s->step =
s->step >> 1;
310 "Error when parsing the expression '%s' for the component %d and color %d.\n",
329 "Error when evaluating the expression '%s' for the value %d for the component %d.\n",
349 #define LOAD_PACKED_COMMON\
350 LutContext *s = ctx->priv;\
351 const struct thread_data *td = arg;\
354 const int w = td->w;\
355 const int h = td->h;\
356 AVFrame *in = td->in;\
357 AVFrame *out = td->out;\
358 const uint16_t (*tab)[256*256] = (const uint16_t (*)[256*256])s->lut;\
359 const int step = s->step;\
361 const int slice_start = (h * jobnr ) / nb_jobs;\
362 const int slice_end = (h * (jobnr+1)) / nb_jobs;\
369 uint16_t *inrow, *outrow, *inrow0, *outrow0;
370 const int in_linesize = in->linesize[0] / 2;
371 const int out_linesize =
out->linesize[0] / 2;
372 inrow0 = (uint16_t *)in ->
data[0];
373 outrow0 = (uint16_t *)
out->data[0];
376 inrow = inrow0 +
i * in_linesize;
377 outrow = outrow0 +
i * out_linesize;
378 for (j = 0; j <
w; j++) {
387 case 4: outrow[3] =
tab[3][inrow[3]];
388 case 3: outrow[2] =
tab[2][inrow[2]];
389 case 2: outrow[1] =
tab[1][inrow[1]];
390 default: outrow[0] =
tab[0][inrow[0]];
406 uint8_t *inrow, *outrow, *inrow0, *outrow0;
407 const int in_linesize = in->linesize[0];
408 const int out_linesize =
out->linesize[0];
409 inrow0 = in ->data[0];
410 outrow0 =
out->data[0];
413 inrow = inrow0 +
i * in_linesize;
414 outrow = outrow0 +
i * out_linesize;
415 for (j = 0; j <
w; j++) {
417 case 4: outrow[3] =
tab[3][inrow[3]];
418 case 3: outrow[2] =
tab[2][inrow[2]];
419 case 2: outrow[1] =
tab[1][inrow[1]];
420 default: outrow[0] =
tab[0][inrow[0]];
430 #define LOAD_PLANAR_COMMON\
431 LutContext *s = ctx->priv;\
432 const struct thread_data *td = arg;\
434 AVFrame *in = td->in;\
435 AVFrame *out = td->out;\
437 #define PLANAR_COMMON\
438 int vsub = plane == 1 || plane == 2 ? s->vsub : 0;\
439 int hsub = plane == 1 || plane == 2 ? s->hsub : 0;\
440 int h = AV_CEIL_RSHIFT(td->h, vsub);\
441 int w = AV_CEIL_RSHIFT(td->w, hsub);\
442 const uint16_t *tab = s->lut[plane];\
444 const int slice_start = (h * jobnr ) / nb_jobs;\
445 const int slice_end = (h * (jobnr+1)) / nb_jobs;\
452 uint16_t *inrow, *outrow;
454 for (plane = 0; plane < 4 && in->data[plane] && in->linesize[plane]; plane++) {
457 const int in_linesize = in->linesize[plane] / 2;
458 const int out_linesize =
out->linesize[plane] / 2;
461 outrow = (uint16_t *)
out->data[plane] +
slice_start * out_linesize;
464 for (j = 0; j <
w; j++) {
468 outrow[j] =
tab[inrow[j]];
471 inrow += in_linesize;
472 outrow += out_linesize;
484 uint8_t *inrow, *outrow;
486 for (plane = 0; plane < 4 && in->data[plane] && in->linesize[plane]; plane++) {
489 const int in_linesize = in->linesize[plane];
490 const int out_linesize =
out->linesize[plane];
492 inrow = in ->data[plane] +
slice_start * in_linesize;
496 for (j = 0; j <
w; j++)
497 outrow[j] =
tab[inrow[j]];
498 inrow += in_linesize;
499 outrow += out_linesize;
506 #define PACKED_THREAD_DATA\
507 struct thread_data td = {\
514 #define PLANAR_THREAD_DATA\
515 struct thread_data td = {\
542 if (
s->is_rgb &&
s->is_16bit && !
s->is_planar) {
547 }
else if (
s->is_rgb && !
s->is_planar) {
552 }
else if (
s->is_16bit) {
571 char *res,
int res_len,
int flags)
589 #define DEFINE_LUT_FILTER(name_, description_, priv_class_) \
590 const AVFilter ff_vf_##name_ = { \
592 .description = NULL_IF_CONFIG_SMALL(description_), \
593 .priv_class = &priv_class_ ## _class, \
594 .priv_size = sizeof(LutContext), \
595 .init = name_##_init, \
597 FILTER_INPUTS(inputs), \
598 FILTER_OUTPUTS(ff_video_default_filterpad), \
599 FILTER_QUERY_FUNC2(query_formats), \
600 .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | \
601 AVFILTER_FLAG_SLICE_THREADS, \
602 .process_command = process_command, \
607 #if CONFIG_LUT_FILTER
609 #define lut_init NULL
610 DEFINE_LUT_FILTER(lut,
"Compute and apply a lookup table to the RGB/YUV input video.",
615 #if CONFIG_LUTYUV_FILTER
626 DEFINE_LUT_FILTER(lutyuv,
"Compute and apply a lookup table to the YUV input video.",
630 #if CONFIG_LUTRGB_FILTER
641 DEFINE_LUT_FILTER(lutrgb,
"Compute and apply a lookup table to the RGB input video.",
AVFILTER_DEFINE_CLASS_EXT(lut, "lut/lutyuv/lutrgb", options)
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
@ AV_PIX_FMT_YUV420P9LE
planar YUV 4:2:0, 13.5bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
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
static double compute_gammaval709(void *opaque, double gamma)
Compute ITU Rec.709 gamma correction of value val.
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
static void comp(unsigned char *dst, ptrdiff_t dst_stride, unsigned char *src, ptrdiff_t src_stride, int add)
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)
@ AV_PIX_FMT_YUV422P14LE
planar YUV 4:2:2,28bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
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.
This structure describes decoded (raw) audio or video data.
trying all byte sequences megabyte in length and selecting the best looking sequence will yield cases to try But a word about which is also called distortion Distortion can be quantified by almost any quality measurement one chooses the sum of squared differences is used but more complex methods that consider psychovisual effects can be used as well It makes no difference in this discussion First step
@ AV_PIX_FMT_YUV420P16LE
planar YUV 4:2:0, 24bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
int av_get_bits_per_pixel(const AVPixFmtDescriptor *pixdesc)
Return the number of bits per pixel used by the pixel format described by pixdesc.
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
A link between two filters.
@ AV_PIX_FMT_YUV444P16LE
planar YUV 4:4:4, 48bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
int av_expr_parse(AVExpr **expr, const char *s, const char *const *const_names, const char *const *func1_names, double(*const *funcs1)(void *, double), const char *const *func2_names, double(*const *funcs2)(void *, double, double), int log_offset, void *log_ctx)
Parse an expression.
static enum AVPixelFormat yuv_pix_fmts[]
static int slice_end(AVCodecContext *avctx, AVFrame *pict, int *got_output)
Handle slice ends.
@ AV_PIX_FMT_YUV420P12LE
planar YUV 4:2:0,18bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
static const char *const var_names[]
static const struct twinvq_data tab
#define PACKED_THREAD_DATA
static double val(void *priv, double ch)
#define LOAD_PACKED_COMMON
void av_expr_free(AVExpr *e)
Free a parsed expression previously created with av_expr_parse().
static const char *const funcs1_names[]
A filter pad used for either input or output.
@ AV_PIX_FMT_YUV420P10LE
planar YUV 4:2:0, 15bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
uint16_t lut[4][256 *256]
lookup table for each component
@ AV_PIX_FMT_YUV444P12LE
planar YUV 4:4:4,36bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
@ AV_PIX_FMT_YUV444P14LE
planar YUV 4:4:4,42bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
#define FF_ARRAY_ELEMS(a)
static double(*const funcs1[])(void *, double)
@ AV_PIX_FMT_YUVA420P
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
static enum AVPixelFormat pix_fmts[]
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
double av_expr_eval(AVExpr *e, const double *const_values, void *opaque)
Evaluate a previously parsed expression.
static enum AVPixelFormat all_pix_fmts[]
int ff_fmt_is_in(int fmt, const int *fmts)
Tell if an integer is contained in the provided -1-terminated list of integers.
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
#define PLANAR_THREAD_DATA
@ AV_PIX_FMT_YUV444P10LE
planar YUV 4:4:4, 30bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
@ AV_PIX_FMT_YUVA422P10LE
planar YUV 4:2:2 30bpp, (1 Cr & Cb sample per 2x1 Y & A samples, little-endian)
@ AV_PIX_FMT_YUV422P16LE
planar YUV 4:2:2, 32bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
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.
@ AV_PIX_FMT_RGB48LE
packed RGB 16:16:16, 48bpp, 16R, 16G, 16B, the 2-byte value for each R/G/B component is stored as lit...
@ AV_PIX_FMT_RGBA64LE
packed RGBA 16:16:16:16, 64bpp, 16R, 16G, 16B, 16A, the 2-byte value for each R/G/B/A component is st...
static int query_formats(const AVFilterContext *ctx, AVFilterFormatsConfig **cfg_in, AVFilterFormatsConfig **cfg_out)
@ AV_PIX_FMT_YUVA444P9LE
planar YUV 4:4:4 36bpp, (1 Cr & Cb sample per 1x1 Y & A samples), little-endian
@ AV_PIX_FMT_YUVA420P16LE
planar YUV 4:2:0 40bpp, (1 Cr & Cb sample per 2x2 Y & A samples, little-endian)
@ AV_PIX_FMT_YUV440P10LE
planar YUV 4:4:0,20bpp, (1 Cr & Cb sample per 1x2 Y samples), little-endian
@ AV_PIX_FMT_YUVA420P9LE
planar YUV 4:2:0 22.5bpp, (1 Cr & Cb sample per 2x2 Y & A samples), little-endian
static int lut_packed_8bits(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
@ AV_PIX_FMT_YUV420P14LE
planar YUV 4:2:0,21bpp, (1 Cr & Cb sample per 2x2 Y samples), little-endian
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
@ AV_PIX_FMT_YUV440P12LE
planar YUV 4:4:0,24bpp, (1 Cr & Cb sample per 1x2 Y samples), little-endian
static int lut_planar_8bits(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
double var_values[VAR_VARS_NB]
@ AV_PIX_FMT_YUV422P10LE
planar YUV 4:2:2, 20bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
static const uint32_t color[16+AV_CLASS_CATEGORY_NB]
int av_frame_is_writable(AVFrame *frame)
Check if the frame data is writable.
#define LOAD_PLANAR_COMMON
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)
static int lut_packed_16bits(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static enum AVPixelFormat rgb_pix_fmts[]
@ AV_PIX_FMT_YUVA420P10LE
planar YUV 4:2:0 25bpp, (1 Cr & Cb sample per 2x2 Y & A samples, little-endian)
#define i(width, name, range_min, range_max)
int w
agreed upon image width
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
const char * name
Pad name.
static int slice_start(SliceContext *sc, VVCContext *s, VVCFrameContext *fc, const CodedBitstreamUnit *unit, const int is_first_slice)
static const AVFilterPad inputs[]
int h
agreed upon image height
int ff_filter_execute(AVFilterContext *ctx, avfilter_action_func *func, void *arg, int *ret, int nb_jobs)
@ AV_PIX_FMT_YUV444P9LE
planar YUV 4:4:4, 27bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
#define AV_PIX_FMT_FLAG_PLANAR
At least one pixel component is not in the first data plane.
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
@ AV_PIX_FMT_YUVA444P10LE
planar YUV 4:4:4 40bpp, (1 Cr & Cb sample per 1x1 Y & A samples, little-endian)
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)
int ff_fill_rgba_map(uint8_t *rgba_map, enum AVPixelFormat pix_fmt)
@ AV_PIX_FMT_YUV422P9LE
planar YUV 4:2:2, 18bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
@ AV_PIX_FMT_YUVA422P16LE
planar YUV 4:2:2 48bpp, (1 Cr & Cb sample per 2x1 Y & A samples, little-endian)
#define flags(name, subs,...)
@ AV_PIX_FMT_YUV410P
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
static int config_props(AVFilterLink *inlink)
@ AV_PIX_FMT_YUVA444P16LE
planar YUV 4:4:4 64bpp, (1 Cr & Cb sample per 1x1 Y & A samples, little-endian)
@ AV_OPT_TYPE_STRING
Underlying C type is a uint8_t* that is either NULL or points to a C string allocated with the av_mal...
static int lut_planar_16bits(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
@ AV_PIX_FMT_YUV422P12LE
planar YUV 4:2:2,24bpp, (1 Cr & Cb sample per 2x1 Y samples), little-endian
static av_cold void uninit(AVFilterContext *ctx)
static double clip(void *opaque, double val)
Clip value val in the minval - maxval range.
static double compute_gammaval(void *opaque, double gamma)
Compute gamma correction for value val, assuming the minval-maxval range, val is clipped to a value c...
#define DEFINE_LUT_FILTER(name_, description_, priv_class_)
@ AV_PIX_FMT_YUVA422P
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
@ AV_PIX_FMT_YUVA422P9LE
planar YUV 4:2:2 27bpp, (1 Cr & Cb sample per 2x1 Y & A samples), little-endian