80 int w = inlink->
w,
h = inlink->
h;
87 s->hsub =
desc->log2_chroma_w;
88 s->vsub =
desc->log2_chroma_h;
97 "filter params: %d.\n", ret);
101 s->radius[
Y] =
s->luma_param.radius;
102 s->radius[
U] =
s->radius[
V] =
s->chroma_param.radius;
103 s->radius[
A] =
s->alpha_param.radius;
105 s->power[
Y] =
s->luma_param.power;
106 s->power[
U] =
s->power[
V] =
s->chroma_param.power;
107 s->power[
A] =
s->alpha_param.power;
126 #define BLUR(type, depth) \
127 static inline void blur ## depth(type *dst, int dst_step, const type *src, \
128 int src_step, int len, int radius) \
130 const int length = radius*2 + 1; \
131 const int inv = ((1<<16) + length/2)/length; \
132 int x, sum = src[radius*src_step]; \
134 for (x = 0; x < radius; x++) \
135 sum += src[x*src_step]<<1; \
137 sum = sum*inv + (1<<15); \
139 for (x = 0; x <= radius; x++) { \
140 sum += (src[(radius+x)*src_step] - src[(radius-x)*src_step])*inv; \
141 dst[x*dst_step] = sum>>16; \
144 for (; x < len-radius; x++) { \
145 sum += (src[(radius+x)*src_step] - src[(x-radius-1)*src_step])*inv; \
146 dst[x*dst_step] = sum >>16; \
149 for (; x < len; x++) { \
150 sum += (src[(2*len-radius-x-1)*src_step] - src[(x-radius-1)*src_step])*inv; \
151 dst[x*dst_step] = sum>>16; \
161 int len,
int radius,
int pixsize)
163 if (pixsize == 1) blur8 (dst, dst_step ,
src, src_step ,
len, radius);
164 else blur16((uint16_t*)dst, dst_step>>1, (
const uint16_t*)
src, src_step>>1,
len, radius);
172 if (radius && power) {
173 blur(
a, pixsize,
src, src_step,
len, radius, pixsize);
174 for (; power > 2; power--) {
176 blur(
b, pixsize,
a, pixsize,
len, radius, pixsize);
180 blur(dst, dst_step,
a, pixsize,
len, radius, pixsize);
185 dst[
i*dst_step] =
a[
i];
188 *(uint16_t*)(dst +
i*dst_step) = ((uint16_t*)
a)[
i];
194 dst[
i*dst_step] =
src[
i*src_step];
197 *(uint16_t*)(dst +
i*dst_step) = *(uint16_t*)(
src +
i*src_step);
202 int w,
int h,
int radius,
int power,
uint8_t *
temp[2],
int pixsize)
206 if (radius == 0 && dst ==
src)
209 for (y = 0; y <
h; y++)
210 blur_power(dst + y*dst_linesize, pixsize,
src + y*src_linesize, pixsize,
211 w, radius, power,
temp, pixsize);
215 int w,
int h,
int radius,
int power,
uint8_t *
temp[2],
int pixsize)
219 if (radius == 0 && dst ==
src)
222 for (x = 0; x <
w; x++)
223 blur_power(dst + x*pixsize, dst_linesize,
src + x*pixsize, src_linesize,
224 h, radius, power,
temp, pixsize);
235 int w[4] = { inlink->
w, cw, cw, inlink->
w };
236 int h[4] = {
in->height, ch, ch,
in->height };
238 const int depth =
desc->comp[0].depth;
239 const int pixsize = (depth+7)/8;
248 for (plane = 0; plane < 4 &&
in->data[plane] &&
in->linesize[plane]; plane++)
250 in ->data[plane],
in ->linesize[plane],
251 w[plane],
h[plane],
s->radius[plane],
s->power[plane],
254 for (plane = 0; plane < 4 &&
in->data[plane] &&
in->linesize[plane]; plane++)
256 out->data[plane],
out->linesize[plane],
257 w[plane],
h[plane],
s->radius[plane],
s->power[plane],
265 #define OFFSET(x) offsetof(BoxBlurContext, x)
266 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
271 {
"luma_power",
"How many times should the boxblur be applied to luma",
OFFSET(luma_param.power),
AV_OPT_TYPE_INT, {.i64=2}, 0, INT_MAX, .flags =
FLAGS },
272 {
"lp",
"How many times should the boxblur be applied to luma",
OFFSET(luma_param.power),
AV_OPT_TYPE_INT, {.i64=2}, 0, INT_MAX, .flags =
FLAGS },
276 {
"chroma_power",
"How many times should the boxblur be applied to chroma",
OFFSET(chroma_param.power),
AV_OPT_TYPE_INT, {.i64=-1}, -1, INT_MAX, .flags =
FLAGS },
277 {
"cp",
"How many times should the boxblur be applied to chroma",
OFFSET(chroma_param.power),
AV_OPT_TYPE_INT, {.i64=-1}, -1, INT_MAX, .flags =
FLAGS },
281 {
"alpha_power",
"How many times should the boxblur be applied to alpha",
OFFSET(alpha_param.power),
AV_OPT_TYPE_INT, {.i64=-1}, -1, INT_MAX, .flags =
FLAGS },
282 {
"ap",
"How many times should the boxblur be applied to alpha",
OFFSET(alpha_param.power),
AV_OPT_TYPE_INT, {.i64=-1}, -1, INT_MAX, .flags =
FLAGS },
311 .priv_class = &boxblur_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.
int ff_boxblur_eval_filter_params(AVFilterLink *inlink, FilterParam *luma_param, FilterParam *chroma_param, FilterParam *alpha_param)
#define flags(name, subs,...)
common internal and external API header
#define AV_CEIL_RSHIFT(a, b)
#define AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
Some filters support a generic "enable" expression option that can be used to enable or disable a fil...
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_ERROR
Something went wrong and cannot losslessly be recovered.
common internal API header
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
#define AV_PIX_FMT_FLAG_BITSTREAM
All values of a component are bit-wise packed end to end.
#define AV_PIX_FMT_FLAG_HWACCEL
Pixel format is an HW accelerated format.
#define AV_PIX_FMT_FLAG_PLANAR
At least one pixel component is not in the first data plane.
#define AV_PIX_FMT_FLAG_BE
Pixel format is big-endian.
#define AV_PIX_FMT_FLAG_PAL
Pixel format has a palette in data[1], values are indexes in this palette.
Describe the class of an AVClass context structure.
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
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...
uint8_t * temp[2]
temporary buffer used in blur_power()
static void vblur(uint8_t *dst, int dst_linesize, const uint8_t *src, int src_linesize, int w, int h, int radius, int power, uint8_t *temp[2], int pixsize)
static const AVFilterPad avfilter_vf_boxblur_inputs[]
#define BLUR(type, depth)
static int query_formats(AVFilterContext *ctx)
static int config_input(AVFilterLink *inlink)
static const AVFilterPad avfilter_vf_boxblur_outputs[]
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
static const AVOption boxblur_options[]
static void blur_power(uint8_t *dst, int dst_step, const uint8_t *src, int src_step, int len, int radius, int power, uint8_t *temp[2], int pixsize)
static av_cold void uninit(AVFilterContext *ctx)
static void hblur(uint8_t *dst, int dst_linesize, const uint8_t *src, int src_linesize, int w, int h, int radius, int power, uint8_t *temp[2], int pixsize)
AVFILTER_DEFINE_CLASS(boxblur)
static void blur(uint8_t *dst, int dst_step, const uint8_t *src, int src_step, int len, int radius, int pixsize)
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.