27 #include "libavutil/attributes.h"
28 #include "libavutil/common.h"
29 #include "libavutil/eval.h"
30 #include "libavutil/opt.h"
31 #include "libavutil/pixdesc.h"
63 char *comp_expr_str[4];
80 #define OFFSET(x) offsetof(LutContext, x)
81 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
103 for (i = 0; i < 4; i++) {
110 #define YUV_FORMATS \
111 AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV420P, \
112 AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV440P, \
113 AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P, \
114 AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P, \
117 #define RGB_FORMATS \
118 AV_PIX_FMT_ARGB, AV_PIX_FMT_RGBA, \
119 AV_PIX_FMT_ABGR, AV_PIX_FMT_BGRA, \
120 AV_PIX_FMT_RGB24, AV_PIX_FMT_BGR24
147 return av_clip(val, minval, maxval);
161 return pow((val-minval)/(maxval-minval), gamma) * (maxval-minval)+minval;
164 static double (*
const funcs1[])(
void *, double) = {
201 min[
Y] = min[
U] = min[
V] = 16;
203 max[
U] = max[
V] = 240;
204 min[
A] = 0; max[
A] = 255;
207 min[0] = min[1] = min[2] = min[3] = 0;
208 max[0] = max[1] = max[2] = max[3] = 255;
231 "Error when parsing the expression '%s' for the component %d and color %d.\n",
240 for (val = 0; val < 256; val++) {
245 min[color], max[color]);
250 "Error when evaluating the expression '%s' for the value %d for the component %d.\n",
254 s->
lut[
comp][
val] = av_clip((
int)res, min[color], max[color]);
268 uint8_t *inrow, *outrow, *inrow0, *outrow0;
269 int i, j, plane, direct = 0;
285 inrow0 = in ->
data[0];
286 outrow0 = out->
data[0];
288 for (i = 0; i < in->
height; i ++) {
293 for (j = 0; j < w; j++) {
295 case 4: outrow[3] =
tab[3][inrow[3]];
296 case 3: outrow[2] =
tab[2][inrow[2]];
297 case 2: outrow[1] =
tab[1][inrow[1]];
298 default: outrow[0] =
tab[0][inrow[0]];
308 for (plane = 0; plane < 4 && in->
data[plane] && in->
linesize[plane]; plane++) {
309 int vsub = plane == 1 || plane == 2 ? s->
vsub : 0;
310 int hsub = plane == 1 || plane == 2 ? s->
hsub : 0;
314 inrow = in ->
data[plane];
315 outrow = out->
data[plane];
317 for (i = 0; i < h; i++) {
319 for (j = 0; j < w; j++)
320 outrow[j] = tab[inrow[j]];
348 #define DEFINE_LUT_FILTER(name_, description_) \
349 AVFilter avfilter_vf_##name_ = { \
351 .description = NULL_IF_CONFIG_SMALL(description_), \
352 .priv_size = sizeof(LutContext), \
353 .priv_class = &name_ ## _class, \
354 .init = name_##_init, \
356 .query_formats = query_formats, \
358 .outputs = outputs, \
359 .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC, \
362 #if CONFIG_LUT_FILTER
364 #define lut_options options
372 DEFINE_LUT_FILTER(lut,
"Compute and apply a lookup table to the RGB/YUV input video.");
375 #if CONFIG_LUTYUV_FILTER
377 #define lutyuv_options options
389 DEFINE_LUT_FILTER(lutyuv,
"Compute and apply a lookup table to the YUV input video.");
392 #if CONFIG_LUTRGB_FILTER
394 #define lutrgb_options options
406 DEFINE_LUT_FILTER(lutrgb,
"Compute and apply a lookup table to the RGB input video.");
409 #if CONFIG_NEGATE_FILTER
411 static const AVOption negate_options[] = {
425 for (i = 0; i < 4; i++) {
const char const char void * val
This structure describes decoded (raw) audio or video data.
double av_expr_eval(AVExpr *e, const double *const_values, void *opaque)
Evaluate a previously parsed expression.
void * priv
private data for use by the filter
char * av_strdup(const char *s) av_malloc_attrib
Duplicate the string s.
int h
agreed upon image height
uint8_t lut[4][256]
lookup table for each component
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
void av_log(void *avcl, int level, const char *fmt,...) av_printf_format(3
Send the specified message to the log if the level is less than or equal to the current av_log_level...
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 const char *const funcs1_names[]
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
void av_expr_free(AVExpr *e)
Free a parsed expression previously created with av_expr_parse().
int av_frame_is_writable(AVFrame *frame)
Check if the frame data is writable.
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
static enum AVPixelFormat yuv_pix_fmts[]
void av_freep(void *ptr)
Free a memory block which has been allocated with av_malloc(z)() or av_realloc() and set the pointer ...
const char * name
Pad name.
static const char *const var_names[]
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
static const uint32_t color[16+AV_CLASS_CATEGORY_NB]
static av_always_inline av_const int isnan(float x)
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
static double(*const funcs1[])(void *, double)
#define FF_CEIL_RSHIFT(a, b)
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
const OptionDef options[]
A filter pad used for either input or output.
A link between two filters.
static enum AVPixelFormat all_pix_fmts[]
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31))))#defineSET_CONV_FUNC_GROUP(ofmt, ifmt) staticvoidset_generic_function(AudioConvert *ac){}voidff_audio_convert_free(AudioConvert **ac){return;ff_dither_free(&(*ac) ->dc);av_freep(ac);}AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, intsample_rate, intapply_map){AudioConvert *ac;intin_planar, out_planar;ac=av_mallocz(sizeof(*ac));returnNULL;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);returnNULL;}returnac;}in_planar=av_sample_fmt_is_planar(in_fmt);out_planar=av_sample_fmt_is_planar(out_fmt);if(in_planar==out_planar){ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar?ac->channels:1;}elseif(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;elseac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);ff_audio_convert_init_arm(ac);ff_audio_convert_init_x86(ac);returnac;}intff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in){intuse_generic=1;intlen=in->nb_samples;intp;if(ac->dc){av_dlog(ac->avr,"%dsamples-audio_convert:%sto%s(dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));returnff_convert_dither(ac-> in
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
AVPixelFormat
Pixel format.
int av_get_bits_per_pixel(const AVPixFmtDescriptor *pixdesc)
Return the number of bits per pixel used by the pixel format described by pixdesc.
int w
agreed upon image width
double var_values[VAR_VARS_NB]
uint8_t nb_components
The number of components each pixel has, (1-4)
int format
agreed upon media format
int ff_fill_rgba_map(uint8_t *rgba_map, enum AVPixelFormat pix_fmt)
Main libavfilter public API header.
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
AVFilterLink ** outputs
array of pointers to output links
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
static const AVFilterPad outputs[]
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
static int query_formats(AVFilterContext *ctx)
Describe the class of an AVClass context structure.
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
AVFilterContext * dst
dest filter
#define DEFINE_LUT_FILTER(name_, description_)
static enum AVPixelFormat rgb_pix_fmts[]
static const AVFilterPad inputs[]
static int config_props(AVFilterLink *inlink)
static av_cold void uninit(AVFilterContext *ctx)
static double clip(void *opaque, double val)
Clip value val in the minval - maxval range.
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31))))#defineSET_CONV_FUNC_GROUP(ofmt, ifmt) staticvoidset_generic_function(AudioConvert *ac){}voidff_audio_convert_free(AudioConvert **ac){return;ff_dither_free(&(*ac) ->dc);av_freep(ac);}AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, intsample_rate, intapply_map){AudioConvert *ac;intin_planar, out_planar;ac=av_mallocz(sizeof(*ac));returnNULL;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);returnNULL;}returnac;}in_planar=av_sample_fmt_is_planar(in_fmt);out_planar=av_sample_fmt_is_planar(out_fmt);if(in_planar==out_planar){ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar?ac->channels:1;}elseif(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;elseac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);ff_audio_convert_init_arm(ac);ff_audio_convert_init_x86(ac);returnac;}intff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in){intuse_generic=1;intlen=in->nb_samples;intp;if(ac->dc){av_dlog(ac->avr,"%dsamples-audio_convert:%sto%s(dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));returnff_convert_dither(ac-> out
#define AVFILTER_DEFINE_CLASS(fname)
static struct twinvq_data tab
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...
static void comp(unsigned char *dst, int dst_stride, unsigned char *src, int src_stride, int add)
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)