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54 ptrdiff_t src_linesize,
55 ptrdiff_t dst_linesize,
93 #define PIXELIZE_AVG(name, type, stype) \
94 static int pixelize_avg##name(const uint8_t *ssrc, uint8_t *ddst, \
95 ptrdiff_t src_linesize, ptrdiff_t dst_linesize, \
98 const type *src = (const type *)ssrc; \
99 type *dst = (type *)ddst; \
102 for (int y = 0; y < h; y++) { \
103 for (int x = 0; x < w; x++) \
106 src += src_linesize / sizeof(type); \
109 fill = sum / (w * h); \
111 for (int y = 0; y < h; y++) { \
112 for (int x = 0; x < w; x++) \
115 dst += dst_linesize / sizeof(type); \
121 #define PIXELIZE_MIN(name, type, stype) \
122 static int pixelize_min##name(const uint8_t *ssrc, uint8_t *ddst, \
123 ptrdiff_t src_linesize, ptrdiff_t dst_linesize, \
126 const type *src = (const type *)ssrc; \
127 type *dst = (type *)ddst; \
128 type fill = src[0]; \
130 for (int y = 0; y < h; y++) { \
131 for (int x = 0; x < w; x++) \
132 fill = FFMIN(src[x], fill); \
134 src += src_linesize / sizeof(type); \
137 for (int y = 0; y < h; y++) { \
138 for (int x = 0; x < w; x++) \
141 dst += dst_linesize / sizeof(type); \
147 #define PIXELIZE_MAX(name, type, stype) \
148 static int pixelize_max##name(const uint8_t *ssrc, uint8_t *ddst, \
149 ptrdiff_t src_linesize, ptrdiff_t dst_linesize, \
152 const type *src = (const type *)ssrc; \
153 type *dst = (type *)ddst; \
154 type fill = src[0]; \
156 for (int y = 0; y < h; y++) { \
157 for (int x = 0; x < w; x++) \
158 fill = FFMAX(src[x], fill); \
160 src += src_linesize / sizeof(type); \
163 for (int y = 0; y < h; y++) { \
164 for (int x = 0; x < w; x++) \
167 dst += dst_linesize / sizeof(type); \
183 const int mode =
s->mode;
188 for (
int p = 0; p <
s->nb_planes; p++) {
189 const int wh =
s->planeheight[p];
190 const int h = (
s->planeheight[p] +
s->block_h[p] - 1) /
s->block_h[p];
191 const int w = (
s->planewidth[p] +
s->block_w[p] - 1) /
s->block_w[p];
192 const int wslice_start = (wh * jobnr) / nb_jobs;
193 const int wslice_end = (wh * (jobnr+1)) / nb_jobs;
195 const int slice_end = (
h * (jobnr+1)) / nb_jobs;
196 const ptrdiff_t out_linesize =
out->linesize[p];
197 const ptrdiff_t in_linesize = in->
linesize[p];
198 const uint8_t *
src = in->
data[p];
199 uint8_t *
dst =
out->data[p];
201 if (!((1 << p) &
s->planes)) {
204 src + wslice_start * in_linesize,
206 s->linesize[p], wslice_end - wslice_start);
211 const int block_h =
FFMIN(
s->block_h[p],
s->planeheight[p] - y *
s->block_h[p]);
212 for (
int x = 0; x <
w; x++) {
213 const int block_w =
FFMIN(
s->block_w[p],
s->planewidth[p] - x *
s->block_w[p]);
215 s->pixelize[
mode](
src +
s->block_h[p] * y * in_linesize +
216 x *
s->block_w[p] * (1 + (
s->depth > 8)),
217 dst +
s->block_h[p] * y * out_linesize +
218 x *
s->block_w[p] * (1 + (
s->depth > 8)),
219 in_linesize, out_linesize, block_w, block_h);
239 s->depth =
desc->comp[0].depth;
245 s->planewidth[0] =
s->planewidth[3] =
inlink->w;
248 s->planeheight[0] =
s->planeheight[3] =
inlink->h;
250 s->log2_chroma_w =
desc->log2_chroma_w;
251 s->log2_chroma_h =
desc->log2_chroma_h;
253 s->pixelize[
PIXELIZE_AVG] =
s->depth <= 8 ? pixelize_avg8 : pixelize_avg16;
254 s->pixelize[
PIXELIZE_MIN] =
s->depth <= 8 ? pixelize_min8 : pixelize_min16;
255 s->pixelize[
PIXELIZE_MAX] =
s->depth <= 8 ? pixelize_max8 : pixelize_max16;
269 s->block_w[1] =
s->block_w[2] =
FFMAX(1,
s->block_w[0] >>
s->log2_chroma_w);
270 s->block_w[3] =
s->block_w[0] =
s->block_w[1] <<
s->log2_chroma_w;
272 s->block_h[1] =
s->block_h[2] =
FFMAX(1,
s->block_h[0] >>
s->log2_chroma_h);
273 s->block_h[3] =
s->block_h[0] =
s->block_h[1] <<
s->log2_chroma_h;
294 FFMIN((
s->planeheight[1] +
s->block_h[1] - 1) /
s->block_h[1],
305 #define OFFSET(x) offsetof(PixelizeContext, x)
306 #define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_RUNTIME_PARAM)
345 .priv_class = &pixelize_class,
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
#define AV_PIX_FMT_YUVA422P16
#define AV_PIX_FMT_GBRAP16
AVPixelFormat
Pixel format.
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
#define FILTER_PIXFMTS_ARRAY(array)
static int pixelize_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
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
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
#define AV_PIX_FMT_YUVA422P9
#define FILTER_INPUTS(array)
This structure describes decoded (raw) audio or video data.
#define AV_PIX_FMT_YUVA420P16
#define AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUV420P10
#define PIXELIZE_MIN(name, type, stype)
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
const char * name
Filter name.
A link between two filters.
#define AV_PIX_FMT_YUVA422P10
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
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.
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
#define AV_PIX_FMT_YUVA420P9
static enum AVPixelFormat pix_fmts[]
#define AV_PIX_FMT_GBRP14
static int slice_end(AVCodecContext *avctx, AVFrame *pict, int *got_output)
Handle slice ends.
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
#define AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUV422P9
#define PIXELIZE_MAX(name, type, stype)
#define AV_PIX_FMT_GRAY16
A filter pad used for either input or output.
#define AV_PIX_FMT_YUV444P10
@ AV_PIX_FMT_YUVJ411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
AVFILTER_DEFINE_CLASS(pixelize)
static const AVFilterPad pixelize_inputs[]
#define AV_PIX_FMT_YUV422P16
@ AV_PIX_FMT_YUVJ422P
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
#define AV_PIX_FMT_GBRAP10
int(* pixelize[PIXELIZE_MODES])(const uint8_t *src, uint8_t *dst, ptrdiff_t src_linesize, ptrdiff_t dst_linesize, int w, int h)
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.
#define AV_PIX_FMT_GBRAP12
@ AV_PIX_FMT_YUVA420P
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
#define AV_PIX_FMT_YUV444P16
#define AV_CEIL_RSHIFT(a, b)
static int config_output(AVFilterLink *outlink)
#define AV_PIX_FMT_YUVA444P12
#define AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_GRAY14
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
#define FILTER_OUTPUTS(array)
@ AV_PIX_FMT_YUVJ444P
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
#define AV_PIX_FMT_GRAY10
#define AV_PIX_FMT_GBRP16
Describe the class of an AVClass context structure.
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
@ 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_YUV440P10
#define AV_PIX_FMT_YUV422P10
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
uint8_t ptrdiff_t const uint8_t ptrdiff_t int intptr_t intptr_t int int16_t * dst
int format
agreed upon media format
#define AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV444P12
int av_frame_is_writable(AVFrame *frame)
Check if the frame data is writable.
AVFilterContext * src
source 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.
@ AV_PIX_FMT_YUVA444P
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
#define AV_PIX_FMT_YUVA444P10
const AVFilter ff_vf_pixelize
#define AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
Some filters support a generic "enable" expression option that can be used to enable or disable a fil...
static const AVFilterPad pixelize_outputs[]
int w
agreed upon image width
#define AV_PIX_FMT_GBRP12
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Used for passing data between threads.
@ AV_PIX_FMT_YUVJ440P
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range
const char * name
Pad name.
#define AV_PIX_FMT_YUV444P9
static int slice_start(SliceContext *sc, VVCContext *s, VVCFrameContext *fc, const CodedBitstreamUnit *unit, const int is_first_slice)
#define AV_PIX_FMT_YUVA444P9
static const AVOption pixelize_options[]
#define AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV422P14
int h
agreed upon image height
int ff_filter_execute(AVFilterContext *ctx, avfilter_action_func *func, void *arg, int *ret, int nb_jobs)
#define AV_PIX_FMT_YUVA422P12
@ AV_OPT_TYPE_INT
Underlying C type is int.
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
@ AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
@ AV_OPT_TYPE_FLAGS
Underlying C type is unsigned int.
#define PIXELIZE_AVG(name, type, stype)
#define AVERROR_BUG
Internal bug, also see AVERROR_BUG2.
int linesize[AV_NUM_DATA_POINTERS]
For video, a positive or negative value, which is typically indicating the size in bytes of each pict...
@ AV_PIX_FMT_YUV410P
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
#define AV_PIX_FMT_YUV440P12
#define AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_GRAY12
@ AV_OPT_TYPE_CONST
Special option type for declaring named constants.
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
@ AV_PIX_FMT_YUVA422P
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
#define AV_PIX_FMT_YUV420P14
static const struct @458 planes[]