53 #define GET_RESULT(A, B, C, D) ((A != C || A != D) - (B != C || B != D)) 55 #define INTERPOLATE(A, B) (((A & hi_pixel_mask) >> 1) + ((B & hi_pixel_mask) >> 1) + (A & B & lo_pixel_mask)) 57 #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) \ 58 + ((((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) 68 const int src_linesize = in->
linesize[0];
69 const int dst_linesize = out->
linesize[0];
80 const int slice_start = (height * jobnr) / nb_jobs;
81 const int slice_end = (height * (jobnr+1)) / nb_jobs;
84 src_line[0] = src + src_linesize*
FFMAX(slice_start - 1, 0);
85 src_line[1] = src + src_linesize*slice_start;
86 src_line[2] = src + src_linesize*
FFMIN(slice_start + 1, height-1);
87 src_line[3] = src + src_linesize*
FFMIN(slice_start + 2, height-1);
89 #define READ_COLOR4(dst, src_line, off) dst = *((const uint32_t *)src_line + off) 90 #define READ_COLOR3(dst, src_line, off) dst = AV_RL24 (src_line + 3*off) 91 #define READ_COLOR2(dst, src_line, off) dst = s->is_be ? AV_RB16(src_line + 2 * off) : AV_RL16(src_line + 2 * off) 93 for (y = slice_start; y <
slice_end; y++) {
96 dst_line[0] = dst + dst_linesize*2*y;
97 dst_line[1] = dst + dst_linesize*(2*y+1);
119 for (x = 0; x <
width; x++) {
120 uint32_t product1a, product1b, product2a, product2b;
127 if (color[2][1] == color[1][2] && color[1][1] != color[2][2]) {
128 product2b = color[2][1];
129 product1b = product2b;
130 }
else if (color[1][1] == color[2][2] && color[2][1] != color[1][2]) {
131 product2b = color[1][1];
132 product1b = product2b;
133 }
else if (color[1][1] == color[2][2] && color[2][1] == color[1][2]) {
136 r +=
GET_RESULT(color[1][2], color[1][1], color[1][0], color[3][1]);
137 r +=
GET_RESULT(color[1][2], color[1][1], color[2][0], color[0][1]);
138 r +=
GET_RESULT(color[1][2], color[1][1], color[3][2], color[2][3]);
139 r +=
GET_RESULT(color[1][2], color[1][1], color[0][2], color[1][3]);
142 product1b = color[1][2];
144 product1b = color[1][1];
148 product2b = product1b;
150 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])
151 product2b =
Q_INTERPOLATE(color[2][2], color[2][2], color[2][2], color[2][1]);
152 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])
153 product2b =
Q_INTERPOLATE(color[2][1], color[2][1], color[2][1], color[2][2]);
157 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])
158 product1b =
Q_INTERPOLATE(color[1][2], color[1][2], color[1][2], color[1][1]);
159 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])
160 product1b =
Q_INTERPOLATE(color[1][2], color[1][1], color[1][1], color[1][1]);
165 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])
167 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])
170 product2a = color[2][1];
172 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])
174 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])
177 product1a = color[1][1];
182 AV_WN32A(dst_line[0] + x * 8, product1a);
183 AV_WN32A(dst_line[0] + x * 8 + 4, product1b);
184 AV_WN32A(dst_line[1] + x * 8, product2a);
185 AV_WN32A(dst_line[1] + x * 8 + 4, product2b);
188 AV_WL24(dst_line[0] + x * 6, product1a);
189 AV_WL24(dst_line[0] + x * 6 + 3, product1b);
190 AV_WL24(dst_line[1] + x * 6, product2a);
191 AV_WL24(dst_line[1] + x * 6 + 3, product2b);
195 AV_WB32(dst_line[0] + x * 4, product1a | (product1b << 16));
196 AV_WB32(dst_line[1] + x * 4, product2a | (product2b << 16));
198 AV_WL32(dst_line[0] + x * 4, product1a | (product1b << 16));
199 AV_WL32(dst_line[1] + x * 4, product2a | (product2b << 16));
204 color[0][0] = color[0][1]; color[0][1] = color[0][2]; color[0][2] = color[0][3];
205 color[1][0] = color[1][1]; color[1][1] = color[1][2]; color[1][2] = color[1][3];
206 color[2][0] = color[2][1]; color[2][1] = color[2][2]; color[2][2] = color[2][3];
207 color[3][0] = color[3][1]; color[3][1] = color[3][2]; color[3][2] = color[3][3];
235 src_line[0] = src_line[1];
236 src_line[1] = src_line[2];
237 src_line[2] = src_line[3];
240 src_line[3] = src_line[2];
242 src_line[3] += src_linesize;
312 outlink->
w = inlink->
w*2;
313 outlink->
h = inlink->
h*2;
317 inlink->
w, inlink->
h, outlink->
w, outlink->
h);
363 .
name =
"super2xsai",
364 .description =
NULL_IF_CONFIG_SMALL(
"Scale the input by 2x using the Super2xSaI pixel art algorithm."),
367 .
inputs = super2xsai_inputs,
int bpp
bytes per pixel, pixel stride for each (packed) pixel
static int super2xsai(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
This structure describes decoded (raw) audio or video data.
Main libavfilter public API header.
packed RGB 8:8:8, 24bpp, RGBRGB...
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
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)
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.
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 AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
#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[]
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
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)
static const AVFilterPad outputs[]
int format
agreed upon media format
#define READ_COLOR2(dst, src_line, off)
static const AVFilterPad super2xsai_inputs[]
Used for passing data between threads.
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
AVFilter ff_vf_super2xsai
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several inputs
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
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)
static enum AVPixelFormat pix_fmts[]
#define flags(name, subs,...)
AVFilterInternal * internal
An opaque struct for libavfilter internal use.
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.
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
static int query_formats(AVFilterContext *ctx)
avfilter_execute_func * execute
static int slice_end(AVCodecContext *avctx, AVFrame *pict)
Handle slice ends.
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.
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
AVPixelFormat
Pixel format.
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.