69 "Error when parsing the expression '%s' for %s\n",
101 int logo_x,
int logo_y,
int logo_w,
int logo_h,
102 unsigned int band,
int show,
int direct)
105 uint64_t interp, weightl, weightr, weightt, weightb,
weight;
108 uint8_t *topleft, *botleft, *topright;
109 unsigned int left_sample, right_sample;
110 int xclipl, xclipr, yclipt, yclipb;
111 int logo_x1, logo_x2, logo_y1, logo_y2;
113 xclipl =
FFMAX(-logo_x, 0);
114 xclipr =
FFMAX(logo_x+logo_w-
w, 0);
115 yclipt =
FFMAX(-logo_y, 0);
116 yclipb =
FFMAX(logo_y+logo_h-
h, 0);
118 logo_x1 = logo_x + xclipl;
119 logo_x2 = logo_x + logo_w - xclipr - 1;
120 logo_y1 = logo_y + yclipt;
121 logo_y2 = logo_y + logo_h - yclipb - 1;
123 topleft =
src+logo_y1 * src_linesize+logo_x1;
124 topright =
src+logo_y1 * src_linesize+logo_x2;
125 botleft =
src+logo_y2 * src_linesize+logo_x1;
130 dst += (logo_y1 + 1) * dst_linesize;
131 src += (logo_y1 + 1) * src_linesize;
133 for (y = logo_y1+1; y < logo_y2; y++) {
134 left_sample = topleft[src_linesize*(y-logo_y1)] +
135 topleft[src_linesize*(y-logo_y1-1)] +
136 topleft[src_linesize*(y-logo_y1+1)];
137 right_sample = topright[src_linesize*(y-logo_y1)] +
138 topright[src_linesize*(y-logo_y1-1)] +
139 topright[src_linesize*(y-logo_y1+1)];
142 xdst = dst+logo_x1+1,
143 xsrc =
src+logo_x1+1; x < logo_x2; x++, xdst++, xsrc++) {
145 if (show && (y == logo_y1+1 || y == logo_y2-1 ||
146 x == logo_x1+1 || x == logo_x2-1)) {
152 weightl = (uint64_t) (logo_x2-x) * (y-logo_y1) * (logo_y2-y) * sar.
den;
153 weightr = (uint64_t)(x-logo_x1) * (y-logo_y1) * (logo_y2-y) * sar.
den;
154 weightt = (uint64_t)(x-logo_x1) * (logo_x2-x) * (logo_y2-y) * sar.
num;
155 weightb = (uint64_t)(x-logo_x1) * (logo_x2-x) * (y-logo_y1) * sar.
num;
158 left_sample * weightl
160 right_sample * weightr
162 (topleft[x-logo_x1] +
163 topleft[x-logo_x1-1] +
164 topleft[x-logo_x1+1]) * weightt
166 (botleft[x-logo_x1] +
167 botleft[x-logo_x1-1] +
168 botleft[x-logo_x1+1]) * weightb;
169 weight = (weightl + weightr + weightt + weightb) * 3U;
172 if (y >= logo_y+band && y < logo_y+logo_h-band &&
173 x >= logo_x+band && x < logo_x+logo_w-band) {
179 dist =
FFMAX(dist, logo_x-x+band);
180 else if (x >= logo_x+logo_w-band)
181 dist =
FFMAX(dist, x-(logo_x+logo_w-1-band));
184 dist =
FFMAX(dist, logo_y-y+band);
185 else if (y >= logo_y+logo_h-band)
186 dist =
FFMAX(dist, y-(logo_y+logo_h-1-band));
188 *xdst = (*xsrc*dist + interp*(band-dist))/band;
205 #define OFFSET(x) offsetof(DelogoContext, x)
206 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
248 if ((ret =
set_expr(&
s->x_pexpr,
s->x_expr,
"x",
ctx)) < 0 ||
259 #define CHECK_UNSET_OPT(opt) \
260 if (s->opt == -1) { \
261 av_log(s, AV_LOG_ERROR, "Option %s was not set.\n", #opt); \
262 return AVERROR(EINVAL); \
272 s->x,
s->y,
s->w,
s->h,
s->band,
s->show);
287 if (
s->x + (
s->band - 1) < 0 ||
s->x +
s->w - (
s->band*2 - 2) > inlink->
w ||
288 s->y + (
s->band - 1) < 0 ||
s->y +
s->h - (
s->band*2 - 2) > inlink->
h) {
302 int hsub0 =
desc->log2_chroma_w;
303 int vsub0 =
desc->log2_chroma_h;
316 if (
s->x + (
s->band - 1) <= 0 ||
s->x +
s->w - (
s->band*2 - 2) > inlink->
w ||
317 s->y + (
s->band - 1) <= 0 ||
s->y +
s->h - (
s->band*2 - 2) > inlink->
h) {
319 " auto set the area inside of the frame\n");
322 if (
s->x + (
s->band - 1) <= 0)
324 if (
s->y + (
s->band - 1) <= 0)
326 if (
s->x +
s->w - (
s->band*2 - 2) > inlink->
w)
327 s->w = inlink->
w -
s->x - (
s->band*2 - 2);
328 if (
s->y +
s->h - (
s->band*2 - 2) > inlink->
h)
329 s->h = inlink->
h -
s->y - (
s->band*2 - 2);
355 sar =
in->sample_aspect_ratio;
360 for (plane = 0; plane <
desc->nb_components; plane++) {
361 int hsub = plane == 1 || plane == 2 ? hsub0 : 0;
362 int vsub = plane == 1 || plane == 2 ? vsub0 : 0;
365 in ->data[plane],
in ->linesize[plane],
368 sar,
s->x>>
hsub,
s->y>>vsub,
405 .priv_class = &delogo_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
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,...)
common internal and external API header
#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.
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.
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_WARNING
Something somehow does not look correct.
#define AV_LOG_VERBOSE
Detailed information.
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
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.
static int weight(int i, int blen, int offset)
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[]
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
AVPixelFormat
Pixel format.
@ 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_YUVA420P
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
@ 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)
Describe the class of an AVClass context structure.
void * priv
private data for use by the filter
AVFilterLink ** outputs
array of pointers to output links
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.
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.
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).
double var_values[VAR_VARS_NB]
AVFILTER_DEFINE_CLASS(delogo)
static const AVFilterPad avfilter_vf_delogo_inputs[]
static int query_formats(AVFilterContext *ctx)
static int config_input(AVFilterLink *inlink)
#define CHECK_UNSET_OPT(opt)
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
static int set_expr(AVExpr **pexpr, const char *expr, const char *option, void *log_ctx)
static const char *const var_names[]
static av_cold int init(AVFilterContext *ctx)
static av_cold void uninit(AVFilterContext *ctx)
static const AVFilterPad avfilter_vf_delogo_outputs[]
static const AVOption delogo_options[]
static void apply_delogo(uint8_t *dst, int dst_linesize, uint8_t *src, int src_linesize, int w, int h, AVRational sar, int logo_x, int logo_y, int logo_w, int logo_h, unsigned int band, int show, int direct)
Apply a simple delogo algorithm to the image in src and put the result in dst.
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.