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PulseAudio APIs pa_simple_new pa_simple_write pa_simple_drain pa_simple_free https://freedesktop.org/software/pulseaudio/doxygen/examples.html build command gcc -o pulse pulse.c `pkg-config --cflags --libs libpulse-simple` source #ifdef HAVE_CONFIG_H #include <config.h> #endif #include <stdio.h> #include <unistd.h> #include <string.h> #include <errno.h> #include <fcntl.h> #include <pulse/simple.h> #include <pulse/error.h> #define BUFSIZE 1024 int main(int argc, char* argv[]) { /* The Sample format to use */ static const pa_sample_spec ss = { .format = PA_SAMPLE_S16LE, .rate = 44100, .channels = 2}; pa_simple* s = NULL; int ret = 1; int error; /* replace STDIN with the specified file if needed */ if (argc > 1) { int fd; if ((fd = open(argv[1], O_RDONLY)) < 0) { fprintf(stderr, __FILE__ ": open() failed: %s\n", strerror(errno)); goto finish; } if (dup2(fd, STDIN_

alsa APIs snd_pcm_open snd_pcm_hw_params_set_format snd_pcm_prepare snd_pcm_writei snd_pcm_drain snd_pcm_close https://www.alsa-project.org/alsa-doc/alsa-lib/group___p_c_m.html issues If your device can't support mixer feature, or pcm interface can't open multi times. You can try PulseAudio. pulseaudio example compile cmd gcc -o play play.c `pkg-config --cflags --libs alsa` source #include <alsa/asoundlib.h> #include <stdio.h> #define PCM_DEVICE "default" int main(int argc, char** argv) { unsigned int pcm, tmp, dir; int rate, channels, seconds; snd_pcm_t* pcm_handle; snd_pcm_hw_params_t* params; snd_pcm_uframes_t frames; char* buff; int buff_size, loops; if (argc < 4) { printf("Usage: %s <sample_rate> <channels> <seconds>\n", argv[0]); return -1; } rate = atoi(argv[1]); channels = atoi(argv[2]); seconds = atoi(argv[3]); /* Open the PCM device in playback mode */ if

configure.ac:109: error: possibly undefined macro: AC_SEARCH_LIBS If this token and others are legitimate, please use m4_pattern_allow. See the Autoconf documentation. autoreconf: /usr/local/bin/autoconf failed with exit status: 1 autoreconf failed solution sudo apt install libtool notes, all below should be installed autoconf automake m4 libtool libevent perl pkg-config

First update your new system sudo apt-get update  sudo apt-get dist-upgrade ensure what graphics driver your system needs. ubuntu-drivers devices install intel driver first sudo apt-get install intel-microcode  sudo apt-get install nvidia-xxx That's all. Note: nvidia-xxx you must enter the recommended driver version displayed in ubuntu-drivers devices and I must warn you. Updating the kernel may cause you problems, so once you installed that NVIDIA driver, please don't upgrade with this commands (sudo apt dist-upgrade or sudo apt upgrade and sudo apt-get dist-upgrade), please use sudo apt-get upgrade that command will hold new kernel releases.

For correct functionality when running under Wayland you must use the latest versions of all the EFL components under Wayland. As a precursor to these steps you must have downloaded and compiled Wayland as per the building instructions . example codes // gcc -o eglwayland eglwayland.c `pkg-config --cflags --libs wayland-egl egl glesv2` #include <stdlib.h> #include <stdint.h> #include <stdio.h> #include <string.h> #include <wayland-client.h> #include <wayland-server.h> #include <wayland-client-protocol.h> #include <wayland-egl.h> // Wayland EGL MUST be included before EGL headers #include <EGL/egl.h> #include <EGL/eglplatform.h> #include <GLES2/gl2.h> struct _escontext { /// Native System informations EGLNativeDisplayType native_display; EGLNativeWindowType native_window; uint16_t window_width, window_height; /// EGL display EGLDisplay display; /// EGL context EGLContext context; /// EGL surfac

For correct functionality when running under Wayland you must use the latest versions of all the EFL components under Wayland. As a precursor to these steps you must have downloaded and compiled Wayland as per the building instructions . example codes #include <Elementary.h> static void on_click(void *data, Evas_Object *obj, void *event_info) { evas_object_del(data); } EAPI_MAIN int elm_main(int argc, char **argv) { Evas_Object *win, *btn; elm_policy_set(ELM_POLICY_QUIT, ELM_POLICY_QUIT_LAST_WINDOW_CLOSED); win = elm_win_util_standard_add("Main", "Hello, World!"); evas_object_resize(win, 1920, 1080); elm_win_autodel_set(win, EINA_TRUE); btn = elm_button_add(win); elm_object_text_set(btn, "Goodbye Cruel World"); elm_win_resize_object_add(win, btn); evas_object_smart_callback_add(btn, "clicked", on_click, win); evas_object_show(btn); evas_object_show(win); elm_run(); return 0; } ELM_MAIN()

For correct functionality when running under Wayland you must use the latest versions of all the EFL components under Wayland. As a precursor to these steps you must have downloaded and compiled Wayland. Setting up the environment apt install git autoconf automake libtool autopoint check Installing in a custom location, system wide install would break things. export WLD=$HOME/install # change this to another location if you prefer export LD_LIBRARY_PATH=$WLD/lib export PKG_CONFIG_PATH=$WLD/lib/pkgconfig/:$WLD/share/pkgconfig/ export PATH=$WLD/bin:$PATH export ACLOCAL_PATH=$WLD/share/aclocal export ACLOCAL="aclocal -I $ACLOCAL_PATH" mkdir -p $WLD/share/aclocal # needed by autotools Do not set LD_LIBRARY_PATH as your default, it will break things. Put the above in a script env.sh and source it in the terminal you wish to build the packages. libdrm sudo apt-get install xutils-dev libpciaccess-dev git clone https://anongit.freedesktop.org/git/mesa/drm cd drm/ sour