23 #include "libavutil/opt.h"
24 #include "libavutil/eval.h"
25 #include "libavutil/avassert.h"
26 #include "libavutil/pixdesc.h"
58 enum EvalMode { EVAL_MODE_INIT, EVAL_MODE_FRAME, EVAL_MODE_NB } eval_mode;
59 #define DEF_EXPR_FIELDS(name) AVExpr *name##_pexpr; char *name##_expr; double name
74 #define OFFSET(x) offsetof(VignetteContext, x)
75 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
84 {
"eval",
"specify when to evaluate expressions",
OFFSET(eval_mode),
AV_OPT_TYPE_INT, {.i64 = EVAL_MODE_INIT}, 0, EVAL_MODE_NB-1,
FLAGS,
"eval" },
85 {
"init",
"eval expressions once during initialization", 0,
AV_OPT_TYPE_CONST, {.i64=EVAL_MODE_INIT}, .flags =
FLAGS, .unit =
"eval" },
86 {
"frame",
"eval expressions for each frame", 0,
AV_OPT_TYPE_CONST, {.i64=EVAL_MODE_FRAME}, .flags =
FLAGS, .unit =
"eval" },
98 #define PARSE_EXPR(name) do { \
99 int ret = av_expr_parse(&s->name##_pexpr, s->name##_expr, var_names, \
100 NULL, NULL, NULL, NULL, 0, ctx); \
102 av_log(ctx, AV_LOG_ERROR, "Unable to parse expression for '" \
103 AV_STRINGIFY(name) "'\n"); \
139 const int xx = (x - s->x0) * s->
xscale;
140 const int yy = (y - s->y0) * s->
yscale;
141 const double dnorm = hypot(xx, yy) / s->
dmax;
145 const double c = cos(s->angle * dnorm);
150 #define TS2D(ts) ((ts) == AV_NOPTS_VALUE ? NAN : (double)(ts))
151 #define TS2T(ts, tb) ((ts) == AV_NOPTS_VALUE ? NAN : (double)(ts) * av_q2d(tb))
156 float *dst = s->
fmap;
174 for (y = 0; y < inlink->
h; y++) {
175 for (x = 0; x < inlink->
w; x++)
180 for (y = 0; y < inlink->
h; y++) {
181 for (x = 0; x < inlink->
w; x++)
192 dv = s->
dither / (double)(1LL<<32);
219 const float *fmap = s->
fmap;
220 const int dst_linesize = out->
linesize[0];
221 const int src_linesize = in ->
linesize[0];
224 for (y = 0; y < inlink->
h; y++) {
228 for (x = 0; x < inlink->
w; x++, dstp += 3, srcp += 3) {
229 const float f = fmap[x];
237 fmap += fmap_linesize;
242 for (plane = 0; plane < 4 && in->
data[plane] && in->
linesize[plane]; plane++) {
245 const float *fmap = s->
fmap;
246 const int dst_linesize = out->
linesize[plane];
247 const int src_linesize = in ->
linesize[plane];
249 const int chroma = plane == 1 || plane == 2;
255 for (y = 0; y < h; y++) {
259 for (x = 0; x < w; x++) {
261 if (chroma) *dstp++ = av_clip_uint8(fmap[x << hsub] * (*srcp++ - 127) + 127 + dv);
262 else *dstp++ = av_clip_uint8(fmap[x ] * *srcp++ + dv);
266 fmap += fmap_linesize << vsub;
295 s->
dmax = hypot(inlink->
w / 2., inlink->
h / 2.);
335 .
inputs = vignette_inputs,
337 .priv_class = &vignette_class,
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.
const char * name
Filter name.
static const AVFilterPad vignette_outputs[]
enum VignetteContext::EvalMode eval_mode
void * priv
private data for use by the filter
static const AVFilterPad outputs[]
static const AVOption vignette_options[]
int h
agreed upon image height
packed RGB 8:8:8, 24bpp, RGBRGB...
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
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...
static double get_dither_value(VignetteContext *s)
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
static av_cold int init(AVFilterContext *ctx)
void av_expr_free(AVExpr *e)
Free a parsed expression previously created with av_expr_parse().
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
static av_cold void uninit(AVFilterContext *ctx)
void av_freep(void *ptr)
Free a memory block which has been allocated with av_malloc(z)() or av_realloc() and set the pointer ...
#define AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
Some filters support a generic "enable" expression option that can be used to enable or disable a fil...
BYTE int const BYTE * srcp
packed RGB 8:8:8, 24bpp, BGRBGR...
const char * name
Pad name.
static const AVFilterPad vignette_inputs[]
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
static double get_natural_factor(const VignetteContext *s, int x, int y)
#define FF_CEIL_RSHIFT(a, b)
static double av_q2d(AVRational a)
Convert rational to double.
static int query_formats(AVFilterContext *ctx)
#define DEF_EXPR_FIELDS(name)
A filter pad used for either input or output.
A link between two filters.
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.
AVRational frame_rate
Frame rate of the stream on the link, or 1/0 if unknown; if left to 0/0, will be automatically be cop...
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
AVRational av_div_q(AVRational b, AVRational c) av_const
Divide one rational by another.
#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)
AVRational time_base
Define the time base used by the PTS of the frames/samples which will pass through this link...
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
AVPixelFormat
Pixel format.
int w
agreed upon image width
double var_values[VAR_NB]
void * av_malloc(size_t size) av_malloc_attrib 1(1)
Allocate a block of size bytes with alignment suitable for all memory accesses (including vectors if ...
int format
agreed upon media format
Main libavfilter public API header.
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
static int config_props(AVFilterLink *inlink)
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 void update_context(VignetteContext *s, AVFilterLink *inlink, AVFrame *frame)
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Describe the class of an AVClass context structure.
static const AVFilterPad inputs[]
rational number numerator/denominator
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.
const AVPixFmtDescriptor * desc
AVRational sample_aspect_ratio
agreed upon sample aspect ratio
AVFilterContext * dst
dest filter
AVFilter avfilter_vf_vignette
#define AV_PIX_FMT_FLAG_RGB
The pixel format contains RGB-like data (as opposed to YUV/grayscale).
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 const char *const var_names[]
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)
int64_t frame_count
Number of past frames sent through the link.