65 #define DEF_EXPR_FIELDS(name) AVExpr *name##_pexpr; char *name##_expr; double name
80 #define OFFSET(x) offsetof(VignetteContext, x)
81 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
104 #define PARSE_EXPR(name) do { \
105 int ret = av_expr_parse(&s->name##_pexpr, s->name##_expr, var_names, \
106 NULL, NULL, NULL, NULL, 0, ctx); \
108 av_log(ctx, AV_LOG_ERROR, "Unable to parse expression for '" \
109 AV_STRINGIFY(name) "'\n"); \
147 const int xx = (x -
s->x0) *
s->xscale;
148 const int yy = (y -
s->y0) *
s->yscale;
149 const double dnorm =
hypot(xx, yy) /
s->dmax;
153 const double c = cos(
s->angle * dnorm);
161 float *dst =
s->fmap;
162 int dst_linesize =
s->fmap_linesize;
184 for (y = 0; y < inlink->
h; y++) {
185 for (x = 0; x < inlink->
w; x++)
190 for (y = 0; y < inlink->
h; y++) {
191 for (x = 0; x < inlink->
w; x++)
202 dv =
s->dither / (double)(1LL<<32);
203 s->dither =
s->dither * 1664525 + 1013904223;
210 unsigned x, y,
direct = 0;
234 const float *fmap =
s->fmap;
235 const int dst_linesize =
out->linesize[0];
236 const int src_linesize =
in ->linesize[0];
237 const int fmap_linesize =
s->fmap_linesize;
239 for (y = 0; y < inlink->
h; y++) {
243 for (x = 0; x < inlink->
w; x++, dstp += 3, srcp += 3) {
244 const float f = fmap[x];
252 fmap += fmap_linesize;
257 for (plane = 0; plane < 4 &&
in->data[plane] &&
in->linesize[plane]; plane++) {
260 const float *fmap =
s->fmap;
261 const int dst_linesize =
out->linesize[plane];
262 const int src_linesize =
in ->linesize[plane];
263 const int fmap_linesize =
s->fmap_linesize;
264 const int chroma = plane == 1 || plane == 2;
265 const int hsub =
chroma ?
s->desc->log2_chroma_w : 0;
266 const int vsub =
chroma ?
s->desc->log2_chroma_h : 0;
270 for (y = 0; y <
h; y++) {
274 for (x = 0; x <
w; x++) {
281 fmap += fmap_linesize << vsub;
297 s->var_values[
VAR_W] = inlink->
w;
298 s->var_values[
VAR_H] = inlink->
h;
312 s->dmax =
hypot(inlink->
w / 2., inlink->
h / 2.);
314 s->xscale,
s->yscale,
s->dmax);
316 s->fmap_linesize =
FFALIGN(inlink->
w, 32);
354 .priv_class = &vignette_class,
static const AVFilterPad inputs[]
static const AVFilterPad outputs[]
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
simple assert() macros that are a bit more flexible than ISO C assert().
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Main libavfilter public API header.
#define flags(name, subs,...)
#define AV_CEIL_RSHIFT(a, b)
void av_expr_free(AVExpr *e)
Free a parsed expression previously created with av_expr_parse().
double av_expr_eval(AVExpr *e, const double *const_values, void *opaque)
Evaluate a previously parsed expression.
simple arithmetic expression evaluator
#define AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
Some filters support a generic "enable" expression option that can be used to enable or disable a fil...
int av_frame_is_writable(AVFrame *frame)
Check if the frame data is writable.
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
static double av_q2d(AVRational a)
Convert an AVRational to a double.
AVRational av_div_q(AVRational b, AVRational c)
Divide one rational by another.
static void direct(const float *in, const FFTComplex *ir, int len, float *out)
common internal API header
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
static enum AVPixelFormat pix_fmts[]
static av_const double hypot(double x, double y)
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
#define AV_PIX_FMT_FLAG_RGB
The pixel format contains RGB-like data (as opposed to YUV/grayscale).
AVPixelFormat
Pixel format.
@ AV_PIX_FMT_RGB24
packed RGB 8:8:8, 24bpp, RGBRGB...
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
@ AV_PIX_FMT_YUV410P
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
@ AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
@ AV_PIX_FMT_BGR24
packed RGB 8:8:8, 24bpp, BGRBGR...
Describe the class of an AVClass context structure.
void * priv
private data for use by the filter
A link between two filters.
int w
agreed upon image width
int h
agreed upon image height
AVRational time_base
Define the time base used by the PTS of the frames/samples which will pass through this link.
AVRational sample_aspect_ratio
agreed upon sample aspect ratio
AVRational frame_rate
Frame rate of the stream on the link, or 1/0 if unknown or variable; if left to 0/0,...
AVFilterContext * dst
dest filter
int format
agreed upon media format
A filter pad used for either input or output.
const char * name
Pad name.
const char * name
Filter name.
This structure describes decoded (raw) audio or video data.
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Rational number (pair of numerator and denominator).
const AVPixFmtDescriptor * desc
double var_values[VAR_NB]
#define av_malloc_array(a, b)
static double get_dither_value(VignetteContext *s)
static int query_formats(AVFilterContext *ctx)
static const AVFilterPad vignette_inputs[]
static double get_natural_factor(const VignetteContext *s, int x, int y)
static void update_context(VignetteContext *s, AVFilterLink *inlink, AVFrame *frame)
static const AVOption vignette_options[]
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
static int config_props(AVFilterLink *inlink)
static const char *const var_names[]
static av_cold int init(AVFilterContext *ctx)
static av_cold void uninit(AVFilterContext *ctx)
static const AVFilterPad vignette_outputs[]
AVFILTER_DEFINE_CLASS(vignette)
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.