51 #define OFFSET(x) offsetof(DebandContext, x) 52 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM 120 const float r =
sinf(x * 12.9898
f + y * 78.233
f) * 43758.545f;
125 static int inline get_avg(
int ref0,
int ref1,
int ref2,
int ref3)
127 return (ref0 + ref1 + ref2 + ref3) / 4;
145 const int dst_linesize = out->
linesize[p];
146 const int src_linesize = in->
linesize[p];
147 const int thr = s->
thr[p];
148 const int start = (s->
planeheight[p] * jobnr ) / nb_jobs;
149 const int end = (s->
planeheight[p] * (jobnr+1)) / nb_jobs;
153 for (y = start; y < end; y++) {
159 const int ref0 = src_ptr[
av_clip(y + y_pos, 0, h) * src_linesize +
av_clip(x + x_pos, 0, w)];
160 const int ref1 = src_ptr[
av_clip(y + -y_pos, 0, h) * src_linesize +
av_clip(x + x_pos, 0, w)];
161 const int ref2 = src_ptr[
av_clip(y + -y_pos, 0, h) * src_linesize +
av_clip(x + -x_pos, 0, w)];
162 const int ref3 = src_ptr[
av_clip(y + y_pos, 0, h) * src_linesize +
av_clip(x + -x_pos, 0, w)];
163 const int src0 = src_ptr[y * src_linesize + x];
166 const int avg =
get_avg(ref0, ref1, ref2, ref3);
169 dst_ptr[y * dst_linesize + x] = diff < thr ? avg :
src0;
171 dst_ptr[y * dst_linesize + x] = (
FFABS(src0 - ref0) <
thr) &&
189 const int start = (s->
planeheight[0] * jobnr ) / nb_jobs;
190 const int end = (s->
planeheight[0] * (jobnr+1)) / nb_jobs;
193 for (y = start; y < end; y++) {
203 const int src_linesize = in->
linesize[p];
204 const int thr = s->
thr[p];
207 const int ref0 = src_ptr[
av_clip(y + y_pos, 0,
h) * src_linesize +
av_clip(x + x_pos, 0,
w)];
208 const int ref1 = src_ptr[
av_clip(y + -y_pos, 0,
h) * src_linesize +
av_clip(x + x_pos, 0,
w)];
209 const int ref2 = src_ptr[
av_clip(y + -y_pos, 0,
h) * src_linesize +
av_clip(x + -x_pos, 0,
w)];
210 const int ref3 = src_ptr[
av_clip(y + y_pos, 0,
h) * src_linesize +
av_clip(x + -x_pos, 0,
w)];
211 const int src0 = src_ptr[y * src_linesize + x];
214 avg[p] =
get_avg(ref0, ref1, ref2, ref3);
217 cmp[p] =
FFABS(src0 - avg[p]) <
thr;
219 cmp[p] = (
FFABS(src0 - ref0) <
thr) &&
231 const int dst_linesize = out->
linesize[p];
233 out->
data[p][y * dst_linesize + x] = avg[p];
237 const int dst_linesize = out->
linesize[p];
239 out->
data[p][y * dst_linesize + x] =
src[p];
254 const int start = (s->
planeheight[0] * jobnr ) / nb_jobs;
255 const int end = (s->
planeheight[0] * (jobnr+1)) / nb_jobs;
258 for (y = start; y < end; y++) {
267 const uint16_t *src_ptr = (
const uint16_t *)in->
data[p];
268 const int src_linesize = in->
linesize[p] / 2;
269 const int thr = s->
thr[p];
272 const int ref0 = src_ptr[
av_clip(y + y_pos, 0,
h) * src_linesize +
av_clip(x + x_pos, 0,
w)];
273 const int ref1 = src_ptr[
av_clip(y + -y_pos, 0,
h) * src_linesize +
av_clip(x + x_pos, 0,
w)];
274 const int ref2 = src_ptr[
av_clip(y + -y_pos, 0,
h) * src_linesize +
av_clip(x + -x_pos, 0,
w)];
275 const int ref3 = src_ptr[
av_clip(y + y_pos, 0,
h) * src_linesize +
av_clip(x + -x_pos, 0,
w)];
276 const int src0 = src_ptr[y * src_linesize + x];
279 avg[p] =
get_avg(ref0, ref1, ref2, ref3);
282 cmp[p] =
FFABS(src0 - avg[p]) <
thr;
284 cmp[p] = (
FFABS(src0 - ref0) <
thr) &&
296 const int dst_linesize = out->
linesize[p] / 2;
297 uint16_t *dst = (uint16_t *)out->
data[p] + y * dst_linesize + x;
303 const int dst_linesize = out->
linesize[p] / 2;
304 uint16_t *dst = (uint16_t *)out->
data[p] + y * dst_linesize + x;
324 const uint16_t *src_ptr = (
const uint16_t *)in->
data[p];
325 uint16_t *dst_ptr = (uint16_t *)out->
data[p];
326 const int dst_linesize = out->
linesize[p] / 2;
327 const int src_linesize = in->
linesize[p] / 2;
328 const int thr = s->
thr[p];
329 const int start = (s->
planeheight[p] * jobnr ) / nb_jobs;
330 const int end = (s->
planeheight[p] * (jobnr+1)) / nb_jobs;
334 for (y = start; y < end; y++) {
340 const int ref0 = src_ptr[
av_clip(y + y_pos, 0, h) * src_linesize +
av_clip(x + x_pos, 0, w)];
341 const int ref1 = src_ptr[
av_clip(y + -y_pos, 0, h) * src_linesize +
av_clip(x + x_pos, 0, w)];
342 const int ref2 = src_ptr[
av_clip(y + -y_pos, 0, h) * src_linesize +
av_clip(x + -x_pos, 0, w)];
343 const int ref3 = src_ptr[
av_clip(y + y_pos, 0, h) * src_linesize +
av_clip(x + -x_pos, 0, w)];
344 const int src0 = src_ptr[y * src_linesize + x];
347 const int avg =
get_avg(ref0, ref1, ref2, ref3);
350 dst_ptr[y * dst_linesize + x] = diff < thr ? avg :
src0;
352 dst_ptr[y * dst_linesize + x] = (
FFABS(src0 - ref0) <
thr) &&
401 const float r =
frand(x, y);
402 const float dir = direction < 0 ? -direction : r *
direction;
403 const int dist = range < 0 ? -range : r *
range;
438 char *res,
int res_len,
int flags)
478 .priv_class = &deband_class,
481 .
inputs = avfilter_vf_deband_inputs,
482 .
outputs = avfilter_vf_deband_outputs,
#define AV_PIX_FMT_YUVA422P16
static const AVFilterPad avfilter_vf_deband_outputs[]
static __device__ float floorf(float a)
#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.
#define AV_PIX_FMT_GRAY10
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.
#define AV_PIX_FMT_GRAY12
AVFilterLink ** inputs
array of pointers to input links
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 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. ...
int ff_filter_process_command(AVFilterContext *ctx, const char *cmd, const char *arg, char *res, int res_len, int flags)
Generic processing of user supplied commands that are set in the same way as the filter options...
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
#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
Used for passing data between threads.
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...
#define AV_PIX_FMT_GRAY14
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several inputs
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
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
#define flags(name, subs,...)
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.
The exact code depends on how similar the blocks are and how related they are to the and needs to apply these operations to the correct inlink or outlink if there are several Macros are available to factor that when no extra processing is inlink
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)
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later.That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another.Frame references ownership and permissions
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)