49 #define GET_RESULT(A, B, C, D) ((A != C || A != D) - (B != C || B != D))
51 #define INTERPOLATE(A, B) (((A & hi_pixel_mask) >> 1) + ((B & hi_pixel_mask) >> 1) + (A & B & lo_pixel_mask))
53 #define Q_INTERPOLATE(A, B, C, D) ((A & q_hi_pixel_mask) >> 2) + ((B & q_hi_pixel_mask) >> 2) + ((C & q_hi_pixel_mask) >> 2) + ((D & q_hi_pixel_mask) >> 2) \
54 + ((((A & q_lo_pixel_mask) + (B & q_lo_pixel_mask) + (C & q_lo_pixel_mask) + (D & q_lo_pixel_mask)) >> 2) & q_lo_pixel_mask)
64 unsigned char *src_line[4];
65 const int bpp = sai->
bpp;
74 src_line[2] = src + src_linesize*
FFMIN(1, height-1);
75 src_line[3] = src + src_linesize*
FFMIN(2, height-1);
77 #define READ_COLOR4(dst, src_line, off) dst = *((const uint32_t *)src_line + off)
78 #define READ_COLOR3(dst, src_line, off) dst = AV_RL24 (src_line + 3*off)
79 #define READ_COLOR2(dst, src_line, off) dst = sai->is_be ? AV_RB16(src_line + 2 * off) : AV_RL16(src_line + 2 * off)
81 for (y = 0; y <
height; y++) {
84 dst_line[0] = dst + dst_linesize*2*
y;
85 dst_line[1] = dst + dst_linesize*(2*y+1);
107 for (x = 0; x <
width; x++) {
108 uint32_t product1a, product1b, product2a, product2b;
115 if (color[2][1] == color[1][2] && color[1][1] != color[2][2]) {
116 product2b = color[2][1];
117 product1b = product2b;
118 }
else if (color[1][1] == color[2][2] && color[2][1] != color[1][2]) {
119 product2b = color[1][1];
120 product1b = product2b;
121 }
else if (color[1][1] == color[2][2] && color[2][1] == color[1][2]) {
124 r +=
GET_RESULT(color[1][2], color[1][1], color[1][0], color[3][1]);
125 r +=
GET_RESULT(color[1][2], color[1][1], color[2][0], color[0][1]);
126 r +=
GET_RESULT(color[1][2], color[1][1], color[3][2], color[2][3]);
127 r +=
GET_RESULT(color[1][2], color[1][1], color[0][2], color[1][3]);
130 product1b = color[1][2];
132 product1b = color[1][1];
136 product2b = product1b;
138 if (color[1][2] == color[2][2] && color[2][2] == color[3][1] && color[2][1] != color[3][2] && color[2][2] != color[3][0])
139 product2b =
Q_INTERPOLATE(color[2][2], color[2][2], color[2][2], color[2][1]);
140 else if (color[1][1] == color[2][1] && color[2][1] == color[3][2] && color[3][1] != color[2][2] && color[2][1] != color[3][3])
141 product2b =
Q_INTERPOLATE(color[2][1], color[2][1], color[2][1], color[2][2]);
145 if (color[1][2] == color[2][2] && color[1][2] == color[0][1] && color[1][1] != color[0][2] && color[1][2] != color[0][0])
146 product1b =
Q_INTERPOLATE(color[1][2], color[1][2], color[1][2], color[1][1]);
147 else if (color[1][1] == color[2][1] && color[1][1] == color[0][2] && color[0][1] != color[1][2] && color[1][1] != color[0][3])
148 product1b =
Q_INTERPOLATE(color[1][2], color[1][1], color[1][1], color[1][1]);
153 if (color[1][1] == color[2][2] && color[2][1] != color[1][2] && color[1][0] == color[1][1] && color[1][1] != color[3][2])
155 else if (color[1][1] == color[2][0] && color[1][2] == color[1][1] && color[1][0] != color[2][1] && color[1][1] != color[3][0])
158 product2a = color[2][1];
160 if (color[2][1] == color[1][2] && color[1][1] != color[2][2] && color[2][0] == color[2][1] && color[2][1] != color[0][2])
162 else if (color[1][0] == color[2][1] && color[2][2] == color[2][1] && color[2][0] != color[1][1] && color[2][1] != color[0][0])
165 product1a = color[1][1];
170 AV_WN32A(dst_line[0] + x * 8, product1a);
171 AV_WN32A(dst_line[0] + x * 8 + 4, product1b);
172 AV_WN32A(dst_line[1] + x * 8, product2a);
173 AV_WN32A(dst_line[1] + x * 8 + 4, product2b);
176 AV_WL24(dst_line[0] + x * 6, product1a);
177 AV_WL24(dst_line[0] + x * 6 + 3, product1b);
178 AV_WL24(dst_line[1] + x * 6, product2a);
179 AV_WL24(dst_line[1] + x * 6 + 3, product2b);
183 AV_WB32(dst_line[0] + x * 4, product1a | (product1b << 16));
184 AV_WB32(dst_line[1] + x * 4, product2a | (product2b << 16));
186 AV_WL32(dst_line[0] + x * 4, product1a | (product1b << 16));
187 AV_WL32(dst_line[1] + x * 4, product2a | (product2b << 16));
192 color[0][0] = color[0][1]; color[0][1] = color[0][2]; color[0][2] = color[0][3];
193 color[1][0] = color[1][1]; color[1][1] = color[1][2]; color[1][2] = color[1][3];
194 color[2][0] = color[2][1]; color[2][1] = color[2][2]; color[2][2] = color[2][3];
195 color[3][0] = color[3][1]; color[3][1] = color[3][2]; color[3][2] = color[3][3];
223 src_line[0] = src_line[1];
224 src_line[1] = src_line[2];
225 src_line[2] = src_line[3];
228 src_line[3] = src_line[2];
230 src_line[3] += src_linesize;
298 outlink->
w = inlink->
w*2;
299 outlink->
h = inlink->
h*2;
303 inlink->
w, inlink->
h, outlink->
w, outlink->
h);
317 outpicref->
width = outlink->
w;
318 outpicref->
height = outlink->
h;
322 inlink->
w, inlink->
h);
348 .
name =
"super2xsai",
349 .description =
NULL_IF_CONFIG_SMALL(
"Scale the input by 2x using the Super2xSaI pixel art algorithm."),
352 .
inputs = super2xsai_inputs,
int bpp
bytes per pixel, pixel stride for each (packed) pixel
This structure describes decoded (raw) audio or video data.
static const AVFilterPad outputs[]
Main libavfilter public API header.
packed RGB 8:8:8, 24bpp, RGBRGB...
int h
agreed upon image height
#define READ_COLOR3(dst, src_line, off)
#define INTERPOLATE(A, B)
packed RGB 5:5:5, 16bpp, (msb)1X 5R 5G 5B(lsb), little-endian, X=unused/undefined ...
packed BGR 5:6:5, 16bpp, (msb) 5B 6G 5R(lsb), little-endian
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
#define GET_RESULT(A, B, C, D)
static void super2xsai(AVFilterContext *ctx, uint8_t *src, int src_linesize, uint8_t *dst, int dst_linesize, int width, int height)
packed RGB 5:6:5, 16bpp, (msb) 5R 6G 5B(lsb), little-endian
const char * name
Pad name.
AVFilterLink ** inputs
array of pointers to input links
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
packed RGB 5:6:5, 16bpp, (msb) 5R 6G 5B(lsb), big-endian
packed ABGR 8:8:8:8, 32bpp, ABGRABGR...
#define AV_LOG_VERBOSE
Detailed information.
A filter pad used for either input or output.
static int config_input(AVFilterLink *inlink)
A link between two filters.
int width
width and height of the video frame
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
packed BGRA 8:8:8:8, 32bpp, BGRABGRA...
void * priv
private data for use by the filter
#define READ_COLOR4(dst, src_line, off)
packed ARGB 8:8:8:8, 32bpp, ARGBARGB...
packed RGBA 8:8:8:8, 32bpp, RGBARGBA...
int w
agreed upon image width
static const AVFilterPad super2xsai_outputs[]
packed RGB 8:8:8, 24bpp, BGRBGR...
AVFilterContext * src
source filter
packed BGR 5:6:5, 16bpp, (msb) 5B 6G 5R(lsb), big-endian
static int config_output(AVFilterLink *outlink)
int format
agreed upon media format
#define READ_COLOR2(dst, src_line, off)
static const AVFilterPad super2xsai_inputs[]
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
static int filter_frame(AVFilterLink *inlink, AVFrame *inpicref)
AVFilter ff_vf_super2xsai
BYTE int const BYTE int int int height
static const AVFilterPad inputs[]
const char * name
Filter name.
packed BGR 5:5:5, 16bpp, (msb)1X 5B 5G 5R(lsb), little-endian, X=unused/undefined ...
AVFilterLink ** outputs
array of pointers to output links
#define Q_INTERPOLATE(A, B, C, D)
packed RGB 5:5:5, 16bpp, (msb)1X 5R 5G 5B(lsb), big-endian , X=unused/undefined
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
static int query_formats(AVFilterContext *ctx)
AVFilterContext * dst
dest filter
packed BGR 5:5:5, 16bpp, (msb)1X 5B 5G 5R(lsb), big-endian , X=unused/undefined
const char * av_get_pix_fmt_name(enum AVPixelFormat pix_fmt)
Return the short name for a pixel format, NULL in case pix_fmt is unknown.
AVPixelFormat
Pixel format.
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.