Go to the documentation of this file.
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 =
s->bpp;
66 const uint32_t hi_pixel_mask =
s->hi_pixel_mask;
67 const uint32_t lo_pixel_mask =
s->lo_pixel_mask;
68 const uint32_t q_hi_pixel_mask =
s->q_hi_pixel_mask;
69 const uint32_t q_lo_pixel_mask =
s->q_lo_pixel_mask;
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 = s->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);
108 uint32_t product1a, product1b, product2a, product2b;
116 product2b =
color[2][1];
117 product1b = product2b;
119 product2b =
color[1][1];
120 product1b = product2b;
130 product1b =
color[1][2];
132 product1b =
color[1][1];
136 product2b = product1b;
158 product2a =
color[2][1];
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));
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;
254 s->hi_pixel_mask = 0xFEFEFEFE;
255 s->lo_pixel_mask = 0x01010101;
256 s->q_hi_pixel_mask = 0xFCFCFCFC;
257 s->q_lo_pixel_mask = 0x03030303;
271 s->hi_pixel_mask = 0xF7DEF7DE;
272 s->lo_pixel_mask = 0x08210821;
273 s->q_hi_pixel_mask = 0xE79CE79C;
274 s->q_lo_pixel_mask = 0x18631863;
283 s->hi_pixel_mask = 0x7BDE7BDE;
284 s->lo_pixel_mask = 0x04210421;
285 s->q_hi_pixel_mask = 0x739C739C;
286 s->q_lo_pixel_mask = 0x0C630C63;
317 outpicref->
width = outlink->
w;
318 outpicref->
height = outlink->
h;
348 .
name =
"super2xsai",
349 .description =
NULL_IF_CONFIG_SMALL(
"Scale the input by 2x using the Super2xSaI pixel art algorithm."),
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
static const AVFilterPad super2xsai_outputs[]
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.
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.
This structure describes decoded (raw) audio or video data.
static int config_input(AVFilterLink *inlink)
#define AV_LOG_VERBOSE
Detailed information.
int bpp
bytes per pixel, pixel stride for each (packed) pixel
@ AV_PIX_FMT_BGR24
packed RGB 8:8:8, 24bpp, BGRBGR...
@ AV_PIX_FMT_BGRA
packed BGRA 8:8:8:8, 32bpp, BGRABGRA...
const char * name
Filter name.
static const AVFilterPad super2xsai_inputs[]
A link between two filters.
@ AV_PIX_FMT_RGB555BE
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.
FFmpeg Automated Testing Environment ************************************Introduction Using FATE from your FFmpeg source directory Submitting the results to the FFmpeg result aggregation server Uploading new samples to the fate suite FATE makefile targets and variables Makefile targets Makefile variables Examples Introduction **************FATE is an extended regression suite on the client side and a means for results aggregation and presentation on the server side The first part of this document explains how you can use FATE from your FFmpeg source directory to test your ffmpeg binary The second part describes how you can run FATE to submit the results to FFmpeg’s FATE server In any way you can have a look at the publicly viewable FATE results by visiting this as it can be seen if some test on some platform broke with their recent contribution This usually happens on the platforms the developers could not test on The second part of this document describes how you can run FATE to submit your results to FFmpeg’s FATE server If you want to submit your results be sure to check that your combination of OS and compiler is not already listed on the above mentioned website In the third part you can find a comprehensive listing of FATE makefile targets and variables Using FATE from your FFmpeg source directory **********************************************If you want to run FATE on your machine you need to have the samples in place You can get the samples via the build target fate rsync Use this command from the top level source this will cause FATE to fail NOTE To use a custom wrapper to run the pass ‘ target exec’ to ‘configure’ or set the TARGET_EXEC Make variable Submitting the results to the FFmpeg result aggregation server ****************************************************************To submit your results to the server you should run fate through the shell script ‘tests fate sh’ from the FFmpeg sources This script needs to be invoked with a configuration file as its first argument tests fate sh path to fate_config A configuration file template with comments describing the individual configuration variables can be found at ‘doc fate_config sh template’ Create a configuration that suits your based on the configuration template The ‘slot’ configuration variable can be any string that is not yet but it is suggested that you name it adhering to the following pattern ‘ARCH OS COMPILER COMPILER VERSION’ The configuration file itself will be sourced in a shell therefore all shell features may be used This enables you to setup the environment as you need it for your build For your first test runs the ‘fate_recv’ variable should be empty or commented out This will run everything as normal except that it will omit the submission of the results to the server The following files should be present in $workdir as specified in the configuration it may help to try out the ‘ssh’ command with one or more ‘ v’ options You should get detailed output concerning your SSH configuration and the authentication process The only thing left is to automate the execution of the fate sh script and the synchronisation of the samples directory Uploading new samples to the fate suite *****************************************If you need a sample uploaded send a mail to samples request This is for developers who have an account on the fate suite server If you upload new please make sure they are as small as space on each network bandwidth and so on benefit from smaller test cases Also keep in mind older checkouts use existing sample that means in practice generally do not remove or overwrite files as it likely would break older checkouts or releases Also all needed samples for a commit should be ideally before the push If you need an account for frequently uploading samples or you wish to help others by doing that send a mail to ffmpeg devel rsync vauL Duo x
A filter pad used for either input or output.
static int query_formats(AVFilterContext *ctx)
static const AVFilterPad outputs[]
static enum AVPixelFormat pix_fmts[]
@ AV_PIX_FMT_RGBA
packed RGBA 8:8:8:8, 32bpp, RGBARGBA...
@ AV_PIX_FMT_RGB565LE
packed RGB 5:6:5, 16bpp, (msb) 5R 6G 5B(lsb), little-endian
static int filter_frame(AVFilterLink *inlink, AVFrame *inpicref)
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
AVFilterLink ** inputs
array of pointers to input links
@ AV_PIX_FMT_BGR565LE
packed BGR 5:6:5, 16bpp, (msb) 5B 6G 5R(lsb), little-endian
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
@ AV_PIX_FMT_BGR555BE
packed BGR 5:5:5, 16bpp, (msb)1X 5B 5G 5R(lsb), big-endian , X=unused/undefined
#define READ_COLOR3(dst, src_line, off)
@ AV_PIX_FMT_ABGR
packed ABGR 8:8:8:8, 32bpp, ABGRABGR...
static int config_output(AVFilterLink *outlink)
@ AV_PIX_FMT_RGB24
packed RGB 8:8:8, 24bpp, RGBRGB...
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
#define READ_COLOR2(dst, src_line, off)
AVFilterContext * src
source filter
#define GET_RESULT(A, B, C, D)
@ AV_PIX_FMT_BGR565BE
packed BGR 5:6:5, 16bpp, (msb) 5B 6G 5R(lsb), big-endian
#define INTERPOLATE(A, B)
@ AV_PIX_FMT_ARGB
packed ARGB 8:8:8:8, 32bpp, ARGBARGB...
@ AV_PIX_FMT_RGB555LE
packed RGB 5:5:5, 16bpp, (msb)1X 5R 5G 5B(lsb), little-endian, X=unused/undefined
int w
agreed upon image width
static void super2xsai(AVFilterContext *ctx, uint8_t *src, int src_linesize, uint8_t *dst, int dst_linesize, int width, int height)
const char * name
Pad name.
AVFilter ff_vf_super2xsai
#define Q_INTERPOLATE(A, B, C, D)
int h
agreed upon image height
@ AV_PIX_FMT_RGB565BE
packed RGB 5:6:5, 16bpp, (msb) 5R 6G 5B(lsb), big-endian
@ AV_PIX_FMT_BGR555LE
packed BGR 5:5:5, 16bpp, (msb)1X 5B 5G 5R(lsb), little-endian, X=unused/undefined
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
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.
#define READ_COLOR4(dst, src_line, off)