80 const int nb_blocks =
s->nb_blocks;
85 for (
int x = 0; x <
s->planewidth[0];) {
88 if (used[rand] == 0) {
93 map[rand *
s->block_w] = x;
95 width =
FFMIN(
s->block_w,
s->planewidth[0] - rand *
s->block_w);
96 map[x] = rand *
s->block_w;
102 map[rand *
s->block_w +
i] =
map[rand *
s->block_w] +
i;
118 const int nb_blocks =
s->nb_blocks;
123 for (
int y = 0; y <
s->planeheight[0];) {
126 if (used[rand] == 0) {
131 map[rand *
s->block_h] = y;
133 height =
FFMIN(
s->block_h,
s->planeheight[0] - rand *
s->block_h);
134 map[y] = rand *
s->block_h;
140 map[rand *
s->block_h +
i] =
map[rand *
s->block_h] +
i;
156 const int nb_blocks =
s->nb_blocks;
157 int nb_blocks_w =
s->planewidth[0] /
s->block_w;
162 for (
int i = 0;
i < nb_blocks;) {
165 if (used[rand] == 0) {
166 int yin =
i / nb_blocks_w;
167 int xin =
i % nb_blocks_w;
168 int in = yin *
s->block_h *
s->planewidth[0] + xin *
s->block_w;
169 int yout = rand / nb_blocks_w;
170 int xout = rand % nb_blocks_w;
171 int out = yout *
s->block_h *
s->planewidth[0] + xout *
s->block_w;
181 for (
int y = 0; y <
s->block_h; y++) {
182 for (
int x = 0; x <
s->block_w; x++) {
183 map[
out + y *
s->planewidth[0] + x] =
map[
out] + x + y *
s->planewidth[0];
187 for (
int y = 0; y <
s->block_h; y++) {
188 for (
int x = 0; x <
s->block_w; x++) {
189 map[
in + y *
s->planewidth[0] + x] =
map[
in] + x + y *
s->planewidth[0];
204 #define SHUFFLE_HORIZONTAL(name, type) \
205 static int shuffle_horizontal## name(AVFilterContext *ctx, void *arg, \
206 int jobnr, int nb_jobs) \
208 ShufflePixelsContext *s = ctx->priv; \
209 ThreadData *td = arg; \
210 AVFrame *in = td->in; \
211 AVFrame *out = td->out; \
213 for (int p = 0; p < s->nb_planes; p++) { \
214 const int slice_start = (s->planeheight[p] * jobnr) / nb_jobs; \
215 const int slice_end = (s->planeheight[p] * (jobnr+1)) / nb_jobs; \
216 type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \
217 const type *src = (const type *)(in->data[p] + \
218 slice_start * in->linesize[p]); \
219 const int32_t *map = s->map; \
221 for (int y = slice_start; y < slice_end; y++) { \
222 for (int x = 0; x < s->planewidth[p]; x++) { \
223 dst[x] = src[map[x]]; \
226 dst += out->linesize[p] / sizeof(type); \
227 src += in->linesize[p] / sizeof(type); \
237 #define SHUFFLE_VERTICAL(name, type) \
238 static int shuffle_vertical## name(AVFilterContext *ctx, void *arg, \
239 int jobnr, int nb_jobs) \
241 ShufflePixelsContext *s = ctx->priv; \
242 ThreadData *td = arg; \
243 AVFrame *in = td->in; \
244 AVFrame *out = td->out; \
246 for (int p = 0; p < s->nb_planes; p++) { \
247 const int slice_start = (s->planeheight[p] * jobnr) / nb_jobs; \
248 const int slice_end = (s->planeheight[p] * (jobnr+1)) / nb_jobs; \
249 type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \
250 const int32_t *map = s->map; \
252 for (int y = slice_start; y < slice_end; y++) { \
253 const type *src = (const type *)(in->data[p] + \
254 map[y] * in->linesize[p]); \
256 memcpy(dst, src, s->linesize[p]); \
257 dst += out->linesize[p] / sizeof(type); \
267 #define SHUFFLE_BLOCK(name, type) \
268 static int shuffle_block## name(AVFilterContext *ctx, void *arg, \
269 int jobnr, int nb_jobs) \
271 ShufflePixelsContext *s = ctx->priv; \
272 ThreadData *td = arg; \
273 AVFrame *in = td->in; \
274 AVFrame *out = td->out; \
276 for (int p = 0; p < s->nb_planes; p++) { \
277 const int slice_start = (s->planeheight[p] * jobnr) / nb_jobs; \
278 const int slice_end = (s->planeheight[p] * (jobnr+1)) / nb_jobs; \
279 type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \
280 const type *src = (const type *)in->data[p]; \
281 const int32_t *map = s->map + slice_start * s->planewidth[p]; \
283 for (int y = slice_start; y < slice_end; y++) { \
284 for (int x = 0; x < s->planewidth[p]; x++) { \
285 int ymap = map[x] / s->planewidth[p]; \
286 int xmap = map[x] % s->planewidth[p]; \
288 dst[x] = src[xmap + ymap * in->linesize[p] / sizeof(type)]; \
291 dst += out->linesize[p] / sizeof(type); \
292 map += s->planewidth[p]; \
318 s->depth =
desc->comp[0].depth;
324 s->planewidth[0] =
s->planewidth[3] = inlink->
w;
327 s->planeheight[0] =
s->planeheight[3] = inlink->
h;
335 s->shuffle_pixels =
s->depth <= 8 ? shuffle_horizontal8 : shuffle_horizontal16;
336 s->nb_blocks = (
s->planewidth[0] +
s->block_w - 1) /
s->block_w;
339 s->shuffle_pixels =
s->depth <= 8 ? shuffle_vertical8 : shuffle_vertical16;
340 s->nb_blocks = (
s->planeheight[0] +
s->block_h - 1) /
s->block_h;
343 s->shuffle_pixels =
s->depth <= 8 ? shuffle_block8 : shuffle_block16;
344 s->nb_blocks = (
s->planeheight[0] /
s->block_h) *
345 (
s->planewidth[0] /
s->block_w);
405 #define OFFSET(x) offsetof(ShufflePixelsContext, x)
406 #define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)
447 .
name =
"shufflepixels",
450 .priv_class = &shufflepixels_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
simple assert() macros that are a bit more flexible than ISO C assert().
#define av_assert0(cond)
assert() equivalent, that is always enabled.
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
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,...)
common internal and external API header
#define AV_CEIL_RSHIFT(a, b)
mode
Use these values in ebur128_init (or'ed).
#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...
uint32_t av_get_random_seed(void)
Get a seed to use in conjunction with random functions.
#define AVERROR_BUG
Internal bug, also see AVERROR_BUG2.
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().
int av_image_fill_linesizes(int linesizes[4], enum AVPixelFormat pix_fmt, int width)
Fill plane linesizes for an image with pixel format pix_fmt and width width.
const VDPAUPixFmtMap * map
av_cold void av_lfg_init(AVLFG *c, unsigned int seed)
static unsigned int av_lfg_get(AVLFG *c)
Get the next random unsigned 32-bit number using an ALFG.
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_GBRAP12
#define AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_GBRAP16
#define AV_PIX_FMT_YUVA444P10
#define AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_GBRP12
AVPixelFormat
Pixel format.
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
@ 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_GBRAP
planar GBRA 4:4:4:4 32bpp
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
#define AV_PIX_FMT_GRAY10
#define AV_PIX_FMT_GRAY14
#define AV_PIX_FMT_GRAY16
#define AV_PIX_FMT_GBRAP10
#define AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUVA444P9
#define AV_PIX_FMT_GBRP14
#define AV_PIX_FMT_YUV444P16
#define AV_PIX_FMT_YUV444P10
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 * 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.
Context structure for the Lagged Fibonacci PRNG.
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
int(* shuffle_pixels)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Used for passing data between threads.
AVFILTER_DEFINE_CLASS(shufflepixels)
static void make_block_map(AVFilterContext *ctx)
static void make_horizontal_map(AVFilterContext *ctx)
AVFilter ff_vf_shufflepixels
static const AVFilterPad shufflepixels_inputs[]
static const AVFilterPad shufflepixels_outputs[]
static int query_formats(AVFilterContext *ctx)
static const AVOption shufflepixels_options[]
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
#define SHUFFLE_BLOCK(name, type)
static av_cold void uninit(AVFilterContext *ctx)
static void make_vertical_map(AVFilterContext *ctx)
static int config_output(AVFilterLink *outlink)
#define SHUFFLE_VERTICAL(name, type)
#define SHUFFLE_HORIZONTAL(name, type)
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.