55 #define OFFSET(x) offsetof(LenscorrectionCtx, x)
56 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
75 #define NEAREST(type, name) \
76 static int filter##name##_slice(AVFilterContext *ctx, void *arg, int job, \
77 int nb_jobs, int plane) \
79 LenscorrectionCtx *rect = ctx->priv; \
80 ThreadData *td = arg; \
81 AVFrame *in = td->in; \
82 AVFrame *out = td->out; \
84 const int32_t *correction = rect->correction[plane]; \
85 const int fill_color = rect->fill_color[plane]; \
86 const int w = rect->planewidth[plane], h = rect->planeheight[plane]; \
87 const int xcenter = rect->cx * w; \
88 const int ycenter = rect->cy * h; \
89 const int start = (h * job ) / nb_jobs; \
90 const int end = (h * (job+1)) / nb_jobs; \
91 const int inlinesize = in->linesize[plane] / sizeof(type); \
92 const int outlinesize = out->linesize[plane] / sizeof(type); \
93 const type *indata = (const type *)in->data[plane]; \
94 type *outrow = (type *)out->data[plane] + start * outlinesize; \
95 for (int i = start; i < end; i++, outrow += outlinesize) { \
96 const int off_y = i - ycenter; \
98 for (int j = 0; j < w; j++) { \
99 const int off_x = j - xcenter; \
100 const int64_t radius_mult = correction[j + i*w]; \
101 const int x = xcenter + ((radius_mult * off_x + (1<<23))>>24); \
102 const int y = ycenter + ((radius_mult * off_y + (1<<23))>>24); \
103 const char isvalid = x >= 0 && x < w && y >= 0 && y < h; \
104 *out++ = isvalid ? indata[y * inlinesize + x] : fill_color; \
114 #define BILINEAR(type, name) \
115 static int filter##name##_slice_bilinear(AVFilterContext *ctx, void *arg, \
116 int job, int nb_jobs, int plane) \
118 LenscorrectionCtx *rect = ctx->priv; \
119 ThreadData *td = arg; \
120 AVFrame *in = td->in; \
121 AVFrame *out = td->out; \
123 const int32_t *correction = rect->correction[plane]; \
124 const int fill_color = rect->fill_color[plane]; \
125 const int depth = rect->depth; \
126 const uint64_t max = (1 << 24) - 1; \
127 const uint64_t add = (1 << 23); \
128 const int w = rect->planewidth[plane], h = rect->planeheight[plane]; \
129 const int xcenter = rect->cx * w; \
130 const int ycenter = rect->cy * h; \
131 const int start = (h * job ) / nb_jobs; \
132 const int end = (h * (job+1)) / nb_jobs; \
133 const int inlinesize = in->linesize[plane] / sizeof(type); \
134 const int outlinesize = out->linesize[plane] / sizeof(type); \
135 const type *indata = (const type *)in->data[plane]; \
136 type *outrow = (type *)out->data[plane] + start * outlinesize; \
138 for (int i = start; i < end; i++, outrow += outlinesize) { \
139 const int off_y = i - ycenter; \
140 type *out = outrow; \
142 for (int j = 0; j < w; j++) { \
143 const int off_x = j - xcenter; \
144 const int64_t radius_mult = correction[j + i*w]; \
145 const int x = xcenter + ((radius_mult * off_x + (1<<23)) >> 24); \
146 const int y = ycenter + ((radius_mult * off_y + (1<<23)) >> 24); \
147 const char isvalid = x >= 0 && x <= w - 1 && y >= 0 && y <= h - 1; \
150 const int nx = FFMIN(x + 1, w - 1); \
151 const int ny = FFMIN(y + 1, h - 1); \
152 const uint64_t du = off_x >= 0 ? (radius_mult * off_x + add) & max : max - ((radius_mult * -off_x + add) & max); \
153 const uint64_t dv = off_y >= 0 ? (radius_mult * off_y + add) & max : max - ((radius_mult * -off_y + add) & max); \
154 const uint64_t p0 = indata[ y * inlinesize + x]; \
155 const uint64_t p1 = indata[ y * inlinesize + nx]; \
156 const uint64_t p2 = indata[ny * inlinesize + x]; \
157 const uint64_t p3 = indata[ny * inlinesize + nx]; \
160 sum += (max - du) * (max - dv) * p0; \
161 sum += ( du) * (max - dv) * p1; \
162 sum += (max - du) * ( dv) * p2; \
163 sum += ( du) * ( dv) * p3; \
165 out[j] = av_clip_uintp2_c((sum + (1ULL << 47)) >> 48, depth); \
167 out[j] = fill_color; \
225 int w =
rect->planewidth[plane];
226 int h =
rect->planeheight[plane];
227 int xcenter =
rect->cx *
w;
228 int ycenter =
rect->cy *
h;
229 int k1 =
rect->k1 * (1<<24);
230 int k2 =
rect->k2 * (1<<24);
231 const int64_t r2inv = (4LL<<60) / (
w *
w +
h *
h);
233 for (
int j = 0; j <
h; j++) {
234 const int off_y = j - ycenter;
235 const int off_y2 = off_y * off_y;
236 for (
int i = 0;
i <
w;
i++) {
237 const int off_x =
i - xcenter;
238 const int64_t r2 = ((off_x * off_x + off_y2) * r2inv + (1LL<<31)) >> 32;
239 const int64_t r4 = (r2 * r2 + (1<<27)) >> 28;
240 const int radius_mult = (r2 * k1 + r4 * k2 + (1LL<<27) + (1LL<<52))>>28;
241 rect->correction[plane][j *
w +
i] = radius_mult;
260 rect->planeheight[0] =
rect->planeheight[3] = inlink->
h;
262 rect->planewidth[0] =
rect->planewidth[3] = inlink->
w;
264 rect->filter_slice =
rect->depth <= 8 ? filter8_slice : filter16_slice;
265 if (
rect->interpolation)
266 rect->filter_slice =
rect->depth <= 8 ? filter8_slice_bilinear : filter16_slice_bilinear;
280 for (
int plane = 0; plane <
rect->nb_planes; plane++) {
281 int w =
rect->planewidth[plane];
282 int h =
rect->planeheight[plane];
284 if (!
rect->correction[plane])
286 if (!
rect->correction[plane])
299 for (
int plane = 0; plane <
rect->nb_planes; plane++)
300 rect->filter_slice(
ctx,
arg, job, nb_jobs, plane);
361 .
name =
"lenscorrection",
367 .priv_class = &lenscorrection_class,
static const AVFilterPad inputs[]
static const AVFilterPad outputs[]
static int interpolation(DeclickChannel *c, const double *src, int ar_order, double *acoefficients, int *index, int nb_errors, double *auxiliary, double *interpolated)
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_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.
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Main libavfilter public API header.
#define flags(name, subs,...)
#define AV_CEIL_RSHIFT(a, b)
int ff_fill_rgba_map(uint8_t *rgba_map, enum AVPixelFormat pix_fmt)
#define AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
Some filters support a generic "enable" expression option that can be used to enable or disable a fil...
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
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.
Various defines for YUV<->RGB conversion.
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[]
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_FLAG_RGB
The pixel format contains RGB-like data (as opposed to YUV/grayscale).
#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_YUV440P12
#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_YUV440P10
#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
#define FF_ARRAY_ELEMS(a)
Describe the class of an AVClass context structure.
int depth
Number of bits in the component.
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.
AVFormatInternal * internal
An opaque field for libavformat internal usage.
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...
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
uint64_t flags
Combination of AV_PIX_FMT_FLAG_...
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
int(* filter_slice)(AVFilterContext *ctx, void *arg, int job, int nb_jobs, int plane)
Used for passing data between threads.
#define av_malloc_array(a, b)
static int process_command(AVFilterContext *ctx, const char *cmd, const char *arg, char *res, int res_len, int flags)
#define NEAREST(type, name)
static void calc_correction(AVFilterContext *ctx, int plane)
AVFILTER_DEFINE_CLASS(lenscorrection)
static int query_formats(AVFilterContext *ctx)
static const AVFilterPad lenscorrection_inputs[]
static const AVFilterPad lenscorrection_outputs[]
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
static const AVOption lenscorrection_options[]
static av_cold void uninit(AVFilterContext *ctx)
static int filter_slice(AVFilterContext *ctx, void *arg, int job, int nb_jobs)
static int config_output(AVFilterLink *outlink)
#define BILINEAR(type, name)
AVFilter ff_vf_lenscorrection
static const int factor[16]
#define RGB_TO_Y_BT709(r, g, b)
#define RGB_TO_U_BT709(r1, g1, b1, max)
#define RGB_TO_V_BT709(r1, g1, b1, max)
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.