51 #define OFFSET(x) offsetof(DebandContext, x) 52 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM 119 const float r =
sinf(x * 12.9898 + y * 78.233) * 43758.545;
121 return r - floorf(r);
124 static int inline get_avg(
int ref0,
int ref1,
int ref2,
int ref3)
126 return (ref0 + ref1 + ref2 + ref3) / 4;
144 const int dst_linesize = out->
linesize[p];
145 const int src_linesize = in->
linesize[p];
146 const int thr = s->
thr[p];
152 for (y = start; y <
end; y++) {
158 const int ref0 = src_ptr[av_clip(y + y_pos, 0, h) * src_linesize + av_clip(x + x_pos, 0, w)];
159 const int ref1 = src_ptr[av_clip(y + -y_pos, 0, h) * src_linesize + av_clip(x + x_pos, 0, w)];
160 const int ref2 = src_ptr[av_clip(y + -y_pos, 0, h) * src_linesize + av_clip(x + -x_pos, 0, w)];
161 const int ref3 = src_ptr[av_clip(y + y_pos, 0, h) * src_linesize + av_clip(x + -x_pos, 0, w)];
162 const int src0 = src_ptr[y * src_linesize + x];
165 const int avg =
get_avg(ref0, ref1, ref2, ref3);
168 dst_ptr[y * dst_linesize + x] = diff < thr ?
avg :
src0;
170 dst_ptr[y * dst_linesize + x] = (
FFABS(src0 - ref0) <
thr) &&
192 for (y = start; y <
end; y++) {
202 const int src_linesize = in->
linesize[p];
203 const int thr = s->
thr[p];
206 const int ref0 = src_ptr[av_clip(y + y_pos, 0,
h) * src_linesize + av_clip(x + x_pos, 0,
w)];
207 const int ref1 = src_ptr[av_clip(y + -y_pos, 0,
h) * src_linesize + av_clip(x + x_pos, 0,
w)];
208 const int ref2 = src_ptr[av_clip(y + -y_pos, 0,
h) * src_linesize + av_clip(x + -x_pos, 0,
w)];
209 const int ref3 = src_ptr[av_clip(y + y_pos, 0,
h) * src_linesize + av_clip(x + -x_pos, 0,
w)];
210 const int src0 = src_ptr[y * src_linesize + x];
213 avg[p] =
get_avg(ref0, ref1, ref2, ref3);
216 cmp[p] =
FFABS(src0 - avg[p]) <
thr;
218 cmp[p] = (
FFABS(src0 - ref0) <
thr) &&
230 const int dst_linesize = out->
linesize[p];
232 out->
data[p][y * dst_linesize + x] = avg[p];
236 const int dst_linesize = out->
linesize[p];
238 out->
data[p][y * dst_linesize + x] =
src[p];
257 for (y = start; y <
end; y++) {
266 const uint16_t *src_ptr = (
const uint16_t *)in->
data[p];
267 const int src_linesize = in->
linesize[p] / 2;
268 const int thr = s->
thr[p];
271 const int ref0 = src_ptr[av_clip(y + y_pos, 0,
h) * src_linesize + av_clip(x + x_pos, 0,
w)];
272 const int ref1 = src_ptr[av_clip(y + -y_pos, 0,
h) * src_linesize + av_clip(x + x_pos, 0,
w)];
273 const int ref2 = src_ptr[av_clip(y + -y_pos, 0,
h) * src_linesize + av_clip(x + -x_pos, 0,
w)];
274 const int ref3 = src_ptr[av_clip(y + y_pos, 0,
h) * src_linesize + av_clip(x + -x_pos, 0,
w)];
275 const int src0 = src_ptr[y * src_linesize + x];
278 avg[p] =
get_avg(ref0, ref1, ref2, ref3);
281 cmp[p] =
FFABS(src0 - avg[p]) <
thr;
283 cmp[p] = (
FFABS(src0 - ref0) <
thr) &&
295 const int dst_linesize = out->
linesize[p] / 2;
296 uint16_t *dst = (uint16_t *)out->
data[p] + y * dst_linesize + x;
302 const int dst_linesize = out->
linesize[p] / 2;
303 uint16_t *dst = (uint16_t *)out->
data[p] + y * dst_linesize + x;
323 const uint16_t *src_ptr = (
const uint16_t *)in->
data[p];
324 uint16_t *dst_ptr = (uint16_t *)out->
data[p];
325 const int dst_linesize = out->
linesize[p] / 2;
326 const int src_linesize = in->
linesize[p] / 2;
327 const int thr = s->
thr[p];
333 for (y = start; y <
end; y++) {
339 const int ref0 = src_ptr[av_clip(y + y_pos, 0, h) * src_linesize + av_clip(x + x_pos, 0, w)];
340 const int ref1 = src_ptr[av_clip(y + -y_pos, 0, h) * src_linesize + av_clip(x + x_pos, 0, w)];
341 const int ref2 = src_ptr[av_clip(y + -y_pos, 0, h) * src_linesize + av_clip(x + -x_pos, 0, w)];
342 const int ref3 = src_ptr[av_clip(y + y_pos, 0, h) * src_linesize + av_clip(x + -x_pos, 0, w)];
343 const int src0 = src_ptr[y * src_linesize + x];
346 const int avg =
get_avg(ref0, ref1, ref2, ref3);
349 dst_ptr[y * dst_linesize + x] = diff < thr ?
avg :
src0;
351 dst_ptr[y * dst_linesize + x] = (
FFABS(src0 - ref0) <
thr) &&
398 const float r =
frand(x, y);
400 const int dist = range < 0 ? -
range : r *
range;
464 .priv_class = &deband_class,
467 .
inputs = avfilter_vf_deband_inputs,
468 .
outputs = avfilter_vf_deband_outputs,
#define AV_PIX_FMT_YUVA422P16
static const AVFilterPad avfilter_vf_deband_outputs[]
#define AV_PIX_FMT_YUVA422P9
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
This structure describes decoded (raw) audio or video data.
#define AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUVA422P10
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Main libavfilter public API header.
int h
agreed upon image height
#define AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_YUV420P12
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
static int query_formats(AVFilterContext *ctx)
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
AVFILTER_DEFINE_CLASS(deband)
#define AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
Some filters support a generic "enable" expression option that can be used to enable or disable a fil...
const char * name
Pad name.
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
static const AVOption deband_options[]
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
static av_cold int end(AVCodecContext *avctx)
static int deband_8_c(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
#define AV_PIX_FMT_YUVA420P9
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range...
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
#define AV_PIX_FMT_YUV444P16
#define AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUVA420P16
A filter pad used for either input or output.
A link between two filters.
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
static av_cold void uninit(AVFilterContext *ctx)
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
int(* deband)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static float frand(int x, int y)
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
void * priv
private data for use by the filter
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
#define AV_PIX_FMT_YUVA444P16
static int deband_8_coupling_c(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
#define AV_PIX_FMT_GBRAP16
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
int w
agreed upon image width
#define AV_PIX_FMT_YUV422P9
uint8_t nb_components
The number of components each pixel has, (1-4)
#define AV_PIX_FMT_GBRP16
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
#define AV_PIX_FMT_GRAY16
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
static int deband_16_coupling_c(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
#define FFABS(a)
Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable ...
static av_always_inline int cmp(MpegEncContext *s, const int x, const int y, const int subx, const int suby, const int size, const int h, int ref_index, int src_index, me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, const int flags)
compares a block (either a full macroblock or a partition thereof) against a proposed motion-compensa...
#define AV_PIX_FMT_YUVA444P10
static const AVFilterPad inputs[]
#define AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_GBRP14
static const AVFilterPad outputs[]
int format
agreed upon media format
#define AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_YUV420P14
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
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)\", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));return ff_convert_dither(ac-> in
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Describe the class of an AVClass context structure.
const char * name
Filter name.
#define AV_PIX_FMT_YUV420P9
AVFilterLink ** outputs
array of pointers to output links
static enum AVPixelFormat pix_fmts[]
#define AV_PIX_FMT_YUV422P14
#define AV_PIX_FMT_GBRP12
AVFilterInternal * internal
An opaque struct for libavfilter internal use.
#define AV_PIX_FMT_YUV444P12
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
planar GBRA 4:4:4:4 32bpp
#define AV_PIX_FMT_YUVA444P9
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
avfilter_execute_func * execute
static av_always_inline int diff(const uint32_t a, const uint32_t b)
static int config_input(AVFilterLink *inlink)
AVFilterContext * dst
dest filter
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
static const AVFilterPad avfilter_vf_deband_inputs[]
static int get_avg(int ref0, int ref1, int ref2, int ref3)
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
int depth
Number of bits in the component.
static int deband_16_c(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
AVPixelFormat
Pixel format.
#define AV_PIX_FMT_YUV422P16
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
#define AV_CEIL_RSHIFT(a, b)