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86 #define WEAK_HFILTER(name, type, ldiv) \
87 static void deblockh##name##_weak(uint8_t *dstp, ptrdiff_t dst_linesize, int block, \
88 int ath, int bth, int gth, int dth, int max) \
94 dst_linesize /= ldiv; \
96 for (x = 0; x < block; x++) { \
97 int delta = dst[x] - dst[x - dst_linesize]; \
98 int A, B, C, D, a, b, c, d; \
100 if (FFABS(delta) >= ath || \
101 FFABS(dst[x - 1 * dst_linesize] - dst[x - 2 * dst_linesize]) >= bth || \
102 FFABS(dst[x + 0 * dst_linesize] - dst[x + 1 * dst_linesize]) >= gth) \
105 A = dst[x - 2 * dst_linesize]; \
106 B = dst[x - 1 * dst_linesize]; \
107 C = dst[x + 0 * dst_linesize]; \
108 D = dst[x + 1 * dst_linesize]; \
115 dst[x - 2 * dst_linesize] = av_clip(a, 0, max); \
116 dst[x - 1 * dst_linesize] = av_clip(b, 0, max); \
117 dst[x + 0 * dst_linesize] = av_clip(c, 0, max); \
118 dst[x + 1 * dst_linesize] = av_clip(d, 0, max); \
125 #define WEAK_VFILTER(name, type, ldiv) \
126 static void deblockv##name##_weak(uint8_t *dstp, ptrdiff_t dst_linesize, int block, \
127 int ath, int bth, int gth, int dth, int max) \
132 dst = (type *)dstp; \
133 dst_linesize /= ldiv; \
135 for (y = 0; y < block; y++) { \
136 int delta = dst[0] - dst[-1]; \
137 int A, B, C, D, a, b, c, d; \
139 if (FFABS(delta) >= ath || \
140 FFABS(dst[-1] - dst[-2]) >= bth || \
141 FFABS(dst[0] - dst[1]) >= gth) \
154 dst[-2] = av_clip(a, 0, max); \
155 dst[-1] = av_clip(b, 0, max); \
156 dst[+0] = av_clip(c, 0, max); \
157 dst[+1] = av_clip(d, 0, max); \
159 dst += dst_linesize; \
166 #define STRONG_HFILTER(name, type, ldiv) \
167 static void deblockh##name##_strong(uint8_t *dstp, ptrdiff_t dst_linesize, int block,\
168 int ath, int bth, int gth, int dth, int max) \
173 dst = (type *)dstp; \
174 dst_linesize /= ldiv; \
176 for (x = 0; x < block; x++) { \
177 int A, B, C, D, E, F, a, b, c, d, e, f; \
178 int delta = dst[x] - dst[x - dst_linesize]; \
180 if (FFABS(delta) >= ath || \
181 FFABS(dst[x - 1 * dst_linesize] - dst[x - 2 * dst_linesize]) >= bth || \
182 FFABS(dst[x + 1 * dst_linesize] - dst[x + 2 * dst_linesize]) >= gth || \
183 FFABS(dst[x + 0 * dst_linesize] - dst[x + 1 * dst_linesize]) >= dth) \
186 A = dst[x - 3 * dst_linesize]; \
187 B = dst[x - 2 * dst_linesize]; \
188 C = dst[x - 1 * dst_linesize]; \
189 D = dst[x + 0 * dst_linesize]; \
190 E = dst[x + 1 * dst_linesize]; \
191 F = dst[x + 2 * dst_linesize]; \
200 dst[x - 3 * dst_linesize] = av_clip(a, 0, max); \
201 dst[x - 2 * dst_linesize] = av_clip(b, 0, max); \
202 dst[x - 1 * dst_linesize] = av_clip(c, 0, max); \
203 dst[x + 0 * dst_linesize] = av_clip(d, 0, max); \
204 dst[x + 1 * dst_linesize] = av_clip(e, 0, max); \
205 dst[x + 2 * dst_linesize] = av_clip(f, 0, max); \
212 #define STRONG_VFILTER(name, type, ldiv) \
213 static void deblockv##name##_strong(uint8_t *dstp, ptrdiff_t dst_linesize, int block,\
214 int ath, int bth, int gth, int dth, int max) \
219 dst = (type *)dstp; \
220 dst_linesize /= ldiv; \
222 for (y = 0; y < block; y++) { \
223 int A, B, C, D, E, F, a, b, c, d, e, f; \
224 int delta = dst[0] - dst[-1]; \
226 if (FFABS(delta) >= ath || \
227 FFABS(dst[-1] - dst[-2]) >= bth || \
228 FFABS(dst[+1] - dst[+2]) >= gth || \
229 FFABS(dst[+0] - dst[+1]) >= dth) \
246 dst[-3] = av_clip(a, 0, max); \
247 dst[-2] = av_clip(b, 0, max); \
248 dst[-1] = av_clip(c, 0, max); \
249 dst[+0] = av_clip(d, 0, max); \
250 dst[+1] = av_clip(e, 0, max); \
251 dst[+2] = av_clip(f, 0, max); \
253 dst += dst_linesize; \
270 s->depth =
s->desc->comp[0].depth;
271 s->bpc = (
s->depth + 7) / 8;
272 s->max = (1 <<
s->depth) - 1;
273 s->ath =
s->alpha *
s->max;
274 s->bth =
s->beta *
s->max;
275 s->gth =
s->gamma *
s->max;
276 s->dth =
s->delta *
s->max;
278 if (
s->depth <= 8 &&
s->filter ==
WEAK) {
279 s->deblockh = deblockh8_weak;
280 s->deblockv = deblockv8_weak;
281 }
else if (
s->depth > 8 &&
s->filter ==
WEAK) {
282 s->deblockh = deblockh16_weak;
283 s->deblockv = deblockv16_weak;
285 if (
s->depth <= 8 &&
s->filter ==
STRONG) {
286 s->deblockh = deblockh8_strong;
287 s->deblockv = deblockv8_strong;
288 }
else if (
s->depth > 8 &&
s->filter ==
STRONG) {
289 s->deblockh = deblockh16_strong;
290 s->deblockv = deblockv16_strong;
294 s->planewidth[0] =
s->planewidth[3] =
inlink->w;
297 s->planeheight[0] =
s->planeheight[3] =
inlink->h;
307 const int block =
s->block;
322 for (plane = 0; plane <
s->nb_planes; plane++) {
323 const int width =
s->planewidth[plane];
324 const int height =
s->planeheight[plane];
325 const uint8_t *
src = (
const uint8_t *)in->
data[plane];
326 uint8_t *dst = (uint8_t *)
out->data[plane];
333 if (!((1 << plane) &
s->planes))
337 s->deblockv(dst + x *
s->bpc,
out->linesize[plane],
341 dst +=
out->linesize[plane] *
block;
343 s->deblockh(dst,
out->linesize[plane],
345 s->ath,
s->bth,
s->gth,
s->dth,
s->max);
348 s->deblockh(dst + x *
s->bpc,
out->linesize[plane],
350 s->ath,
s->bth,
s->gth,
s->dth,
s->max);
351 s->deblockv(dst + x *
s->bpc,
out->linesize[plane],
353 s->ath,
s->bth,
s->gth,
s->dth,
s->max);
364 char *res,
int res_len,
int flags)
375 #define OFFSET(x) offsetof(DeblockContext, x)
376 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
413 .priv_class = &deblock_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
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)
#define FILTER_PIXFMTS_ARRAY(array)
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
This structure describes decoded (raw) audio or video data.
#define AV_PIX_FMT_YUVA420P16
static const AVFilterPad outputs[]
#define AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUV420P10
static const AVFilterPad inputs[]
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
filter_frame For filters that do not use the this method is called when a frame is pushed to the filter s input It can be called at any time except in a reentrant way If the input frame is enough to produce then the filter should push the output frames on the output link immediately As an exception to the previous rule if the input frame is enough to produce several output frames then the filter needs output only at least one per link The additional frames can be left buffered in the filter
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
#define AV_PIX_FMT_GBRP14
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
static const AVOption deblock_options[]
#define AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_GRAY16
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
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 ...
#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
#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)
#define AV_PIX_FMT_YUVA444P12
#define AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_GRAY14
#define STRONG_VFILTER(name, type, ldiv)
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
#define FILTER_INPUTS(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...
static const struct @321 planes[]
#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.
#define STRONG_HFILTER(name, type, ldiv)
static int config_output(AVFilterLink *outlink)
@ AV_PIX_FMT_YUVJ420P
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
void(* deblockh)(uint8_t *dst, ptrdiff_t dst_linesize, int block, int ath, int bth, int gth, int dth, int max)
static enum AVPixelFormat pixel_fmts[]
#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.
AVFILTER_DEFINE_CLASS(deblock)
#define AV_PIX_FMT_YUV422P12
#define WEAK_VFILTER(name, type, ldiv)
#define AV_PIX_FMT_YUV444P12
int av_frame_is_writable(AVFrame *frame)
Check if the frame data is writable.
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
#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 AVFilter ff_vf_deblock
int w
agreed upon image width
#define AV_PIX_FMT_GBRP12
void(* deblockv)(uint8_t *dst, ptrdiff_t dst_linesize, int block, int ath, int bth, int gth, int dth, int max)
@ 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
#define AV_PIX_FMT_YUVA444P9
#define AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV422P14
int h
agreed upon image height
#define AV_PIX_FMT_YUVA422P12
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
@ 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
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
#define WEAK_HFILTER(name, type, ldiv)
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
static const int16_t alpha[]
#define FILTER_OUTPUTS(array)
@ AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
#define flags(name, subs,...)
#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)
The exact code depends on how similar the blocks are and how related they are to the block
const AVPixFmtDescriptor * desc
#define AV_PIX_FMT_YUV440P12
#define AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_GRAY12
@ AV_PIX_FMT_YUVA422P
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
#define AV_PIX_FMT_YUV420P14