54 uint8_t *dst, ptrdiff_t dst_linesize,
55 int w,
int h,
float *
change,
float *orig);
58 #define OFFSET(x) offsetof(TMidEqualizerContext, x)
59 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
100 const float *
const kernel,
101 int nb_frames,
int radius,
int hsize,
104 const float *
const h1 = histograms[idx];
107 for (
int p1 = 0; p1 < hsize; p1++) {
111 for (
int j = 0; j < radius; j++) {
112 const int nidx = ((idx - radius + j) % nb_frames);
113 const float *
const h2 = histograms[nidx < 0 ? nidx + nb_frames: nidx];
116 for (; p2[k] < hsize && h2[p2[k]] < h1[p1]; p2[k]++);
121 sum += kernel[j] * p2[k];
124 for (
int j = radius + 1; j < nb_frames; j++) {
125 const int nidx = (idx - radius + j) % nb_frames;
126 const float *
const h2 = histograms[nidx < 0 ? nidx + nb_frames: nidx];
129 for (; p2[k] < hsize && h2[p2[k]] < h1[p1]; p2[k]++);
133 weight += kernel[j - radius - 1];
134 sum += kernel[j - radius - 1] * p2[k];
142 uint8_t *dst, ptrdiff_t dst_linesize,
143 int w,
int h,
float *change,
float *orig)
145 for (
int y = 0; y <
h; y++) {
146 for (
int x = 0; x <
w; x++)
155 uint8_t *ddst, ptrdiff_t dst_linesize,
156 int w,
int h,
float *change,
float *orig)
158 const uint16_t *
src = (
const uint16_t *)ssrc;
159 uint16_t *dst = (uint16_t *)ddst;
161 for (
int y = 0; y <
h; y++) {
162 for (
int x = 0; x <
w; x++)
165 dst += dst_linesize / 2;
166 src += src_linesize / 2;
179 int idx =
s->f_frames <
s->nb_frames ?
s->radius :
s->del_frame ?
s->del_frame - 1 :
s->nb_frames - 1;
181 if (
s->f_frames <
s->nb_frames) {
182 s->l_frames =
s->nb_frames -
s->f_frames;
192 if (
s->f_frames <
s->nb_frames) {
193 s->frames[
s->f_frames] =
in;
195 for (
int p = 0; p <
s->nb_planes; p++) {
196 s->compute_histogram(
in->data[p],
in->linesize[p],
197 s->plane_width[p],
s->plane_height[p],
198 s->histogram[p][
s->f_frames],
204 while (
s->f_frames <=
s->radius) {
206 if (!
s->frames[
s->f_frames])
208 for (
int p = 0; p <
s->nb_planes; p++) {
209 memcpy(
s->histogram[p][
s->f_frames],
210 s->histogram[p][
s->f_frames - 1],
211 s->histogram_size *
sizeof(
float));
216 if (!eof &&
s->f_frames <
s->nb_frames) {
219 while (
s->f_frames <
s->nb_frames) {
221 if (!
s->frames[
s->f_frames])
223 for (
int p = 0; p <
s->nb_planes; p++) {
224 memcpy(
s->histogram[p][
s->f_frames],
225 s->histogram[p][
s->f_frames - 1],
226 s->histogram_size *
sizeof(
float));
231 s->cur_frame =
s->radius;
235 s->frames[
s->del_frame] =
in;
237 for (
int p = 0; p <
s->nb_planes; p++) {
238 s->compute_histogram(
in->data[p],
in->linesize[p],
239 s->plane_width[p],
s->plane_height[p],
240 s->histogram[p][
s->del_frame],
245 if (
s->del_frame >=
s->nb_frames)
249 if (
ctx->is_disabled) {
250 const int idx =
s->cur_frame;
256 const int idx =
s->cur_frame;
264 for (
int p = 0; p <
s->nb_planes; p++) {
265 if (!((1 << p) &
s->planes)) {
267 s->plane_width[p] * (1 + (
s->depth > 8)),
s->plane_height[p]);
272 s->nb_frames,
s->radius,
s->histogram_size,
s->change[p], idx);
274 s->apply_contrast_change(
in->data[p],
in->linesize[p],
275 out->data[p],
out->linesize[p],
276 s->plane_width[p],
s->plane_height[p],
277 s->change[p],
s->histogram[p][idx]);
282 if (
s->cur_frame >=
s->nb_frames)
289 int w,
int h,
float *histogram,
size_t hsize)
291 memset(histogram, 0, hsize *
sizeof(*histogram));
293 for (
int y = 0; y <
h; y++) {
294 for (
int x = 0; x <
w; x++)
295 histogram[
src[x]] += 1;
299 for (
int x = 0; x < hsize; x++)
300 histogram[x] /= hsize;
302 for (
int x = 1; x < hsize; x++)
303 histogram[x] += histogram[x-1];
307 int w,
int h,
float *histogram,
size_t hsize)
309 const uint16_t *
src = (
const uint16_t *)ssrc;
311 memset(histogram, 0, hsize *
sizeof(*histogram));
313 for (
int y = 0; y <
h; y++) {
314 for (
int x = 0; x <
w; x++)
315 histogram[
src[x]] += 1;
319 for (
int x = 0; x < hsize; x++)
320 histogram[x] /= hsize;
322 for (
int x = 1; x < hsize; x++)
323 histogram[x] += histogram[x-1];
331 float sigma =
s->radius *
s->sigma;
334 s->depth =
desc->comp[0].depth;
335 s->nb_frames =
s->radius * 2 + 1;
339 vsub =
desc->log2_chroma_h;
341 s->plane_height[0] =
s->plane_height[3] = inlink->
h;
342 s->plane_width[0] =
s->plane_width[3] = inlink->
w;
346 s->histogram_size = 1 <<
s->depth;
348 for (
int n = 0; n <
s->radius; n++)
349 s->kernel[n] =
expf(-0.5 * (n + 1) * (n + 1) / (sigma * sigma));
351 for (
int p = 0; p <
s->nb_planes; p++) {
352 for (
int n = 0; n <
s->nb_frames; n++) {
353 s->histogram[p][n] =
av_calloc(
s->histogram_size,
sizeof(
float));
354 if (!
s->histogram[p][n])
358 s->change[p] =
av_calloc(
s->histogram_size,
sizeof(
float));
364 s->frames =
av_calloc(
s->nb_frames,
sizeof(*
s->frames));
392 for (
int n = 0; n < nb_frames; n++)
406 for (
int i = 0;
i <
s->nb_frames &&
s->frames;
i++)
431 .
name =
"tmidequalizer",
438 .priv_class = &tmidequalizer_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.
int ff_request_frame(AVFilterLink *link)
Request an input frame from the filter at the other end of the link.
Main libavfilter public API header.
#define flags(name, subs,...)
#define AV_CEIL_RSHIFT(a, b)
#define AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL
Same as AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC, except that the filter will have its filter_frame() c...
#define AVERROR_EOF
End of file.
AVFrame * av_frame_clone(const AVFrame *src)
Create a new frame that references the same data as src.
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.
void * av_calloc(size_t nmemb, size_t size)
Non-inlined equivalent of av_mallocz_array().
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)
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[]
static const struct @322 planes[]
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
#define AV_PIX_FMT_GBRAP12
#define AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_GBRAP16
#define AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUVA444P10
#define AV_PIX_FMT_YUVA420P16
#define AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUVA422P9
#define AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_GRAY12
#define AV_PIX_FMT_GBRP12
#define AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUVA420P9
#define AV_PIX_FMT_YUVA422P10
#define AV_PIX_FMT_YUV420P14
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_YUVJ440P
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range
@ 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)
@ AV_PIX_FMT_YUVA444P
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
@ AV_PIX_FMT_YUVJ411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
@ AV_PIX_FMT_YUVJ422P
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
@ AV_PIX_FMT_YUVA422P
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
@ AV_PIX_FMT_YUVJ444P
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
@ AV_PIX_FMT_YUVJ420P
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
#define AV_PIX_FMT_YUVA422P12
#define AV_PIX_FMT_YUV422P14
#define AV_PIX_FMT_GRAY10
#define AV_PIX_FMT_GRAY14
#define AV_PIX_FMT_YUV422P16
#define AV_PIX_FMT_GRAY16
#define AV_PIX_FMT_GBRAP10
#define AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUVA422P16
#define AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUVA444P9
#define AV_PIX_FMT_GBRP14
#define AV_PIX_FMT_YUVA444P12
#define AV_PIX_FMT_YUV444P16
#define AV_PIX_FMT_YUV444P10
typedef void(RENAME(mix_any_func_type))
Describe the class of an AVClass context structure.
A link between two filters.
int w
agreed upon image width
int h
agreed upon image height
AVFilterContext * src
source filter
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...
void(* apply_contrast_change)(const uint8_t *src, ptrdiff_t src_linesize, uint8_t *dst, ptrdiff_t dst_linesize, int w, int h, float *change, float *orig)
void(* compute_histogram)(const uint8_t *ssrc, ptrdiff_t linesize, int w, int h, float *histogram, size_t hsize)
float * histogram[4][256]
static void apply_contrast_change8(const uint8_t *src, ptrdiff_t src_linesize, uint8_t *dst, ptrdiff_t dst_linesize, int w, int h, float *change, float *orig)
static void compute_contrast_function(const float *const histograms[256], const float *const kernel, int nb_frames, int radius, int hsize, float *f, int idx)
static const AVOption tmidequalizer_options[]
static const AVFilterPad tmidequalizer_inputs[]
static int query_formats(AVFilterContext *ctx)
static void compute_histogram16(const uint8_t *ssrc, ptrdiff_t linesize, int w, int h, float *histogram, size_t hsize)
static int config_input(AVFilterLink *inlink)
AVFILTER_DEFINE_CLASS(tmidequalizer)
static int request_frame(AVFilterLink *outlink)
static const AVFilterPad tmidequalizer_outputs[]
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
static void compute_histogram8(const uint8_t *src, ptrdiff_t linesize, int w, int h, float *histogram, size_t hsize)
static av_cold void uninit(AVFilterContext *ctx)
AVFilter ff_vf_tmidequalizer
static void apply_contrast_change16(const uint8_t *ssrc, ptrdiff_t src_linesize, uint8_t *ddst, ptrdiff_t dst_linesize, int w, int h, float *change, float *orig)
static void free_histograms(AVFilterContext *ctx, int x, int nb_frames)
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.