| Originall From: Posted 2015-05-29 http://ubwg.net/b/full-list-of-ffmpeg-flags-and-options | |
| This is the complete list that’s outputted by ffmpeg when running ffmpeg -h full. | |
| usage: ffmpeg [options] [[infile options] -i infile]… {[outfile options] outfile}… | |
| Getting help: | |
| -h — print basic options | |
| -h long — print more options | |
| -h full — print all options (including all format and codec specific options, very long) |
Streaming your Linux desktop to Youtube and Twitch via Nvidia's NVENC and VAAPI:
Considerations to take when live streaming:
The following best practice observations apply when using a hardware-based encoder for live streaming to any platform:
Set the buffer size (-bufsize:v) equal to the target bitrate (-b:v). You want to ensure that you're encoding in CBR mode.
Set up the encoders as shown:
| #include <stdio.h> | |
| #define STB_IMAGE_WRITE_IMPLEMENTATION | |
| #include "stb_image_write.h" | |
| #include <ft2build.h> | |
| #include FT_FREETYPE_H | |
| #define NUM_GLYPHS 128 | |
| struct glyph_info { | |
| int x0, y0, x1, y1; // coords of glyph in the texture atlas |
Orthodox C++ (sometimes referred as C+) is minimal subset of C++ that improves C, but avoids all unnecessary things from so called Modern C++. It's exactly opposite of what Modern C++ suppose to be.
| /* $CC -o xresources_test xresources_test.c -lX11 */ | |
| #include <X11/Xresource.h> | |
| #include <string.h> | |
| #include <stdio.h> | |
| #define XRESOURCE_LOAD_STRING(NAME, DST) \ | |
| XrmGetResource(db, NAME, "String", &type, &ret); \ | |
| if (ret.addr != NULL && !strncmp("String", type, 64)) \ | |
| DST = ret.addr; |
| #include <SFML/Audio.h> | |
| #include <SFML/Graphics.h> | |
| int main() | |
| { | |
| sfVideoMode mode = {800, 600, 32}; | |
| sfRenderWindow* window; | |
| sfTexture* texture; | |
| sfSprite* sprite; | |
| sfFont* font; |
| //compiled gcc fonttest.c -o fonttest -lfontconfig | |
| //Sample output: /usr/share/fonts/steam-fonts/arial.ttf | |
| #include <stdio.h> | |
| #include <stdlib.h> | |
| #include <fontconfig/fontconfig.h> | |
| int main() | |
| { | |
| FcConfig* config = FcInitLoadConfigAndFonts(); | |
| //make pattern from font name | |
| FcPattern* pat = FcNameParse((const FcChar8*)"Arial"); |
| //make font_transform_test CFLAGS=`freetype-config --cflags ` LDLIBS=`freetype-config --libs` LDLIBS+=`pkg-config fontconfig --libs` LDLIBS+='-lm' | |
| /* | |
| * Xpost - a Level-2 Postscript interpreter | |
| * Copyright (C) 2013, Michael Joshua Ryan | |
| * Copyright (C) 2013, Vincent Torri | |
| * All rights reserved. | |
| * | |
| * Redistribution and use in source and binary forms, with or without | |
| * modification, are permitted provided that the following conditions are met: |
| #define _XOPEN_SOURCE 700 | |
| #include <signal.h> | |
| #include <unistd.h> | |
| int main() | |
| { | |
| sigset_t set; | |
| int status; | |
| if (getpid() != 1) return 1; |
| #include <stdio.h> | |
| #include <stdlib.h> | |
| #include <netinet/in.h> | |
| #include <ev.h> | |
| #include <strings.h> | |
| #define PORT_NO 3033 | |
| #define BUFFER_SIZE 1024 | |
| void accept_cb(struct ev_loop *loop, struct ev_io *watcher, int revents); |
