/* * This file is part of mpv. * * mpv is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * mpv is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with mpv.  If not, see <http://www.gnu.org/licenses/>. */ #include <inttypes.h>#include <libmpv/client.h>#include <stdarg.h>#include <stdio.h>#include <stdlib.h>#include <string.h> #ifdef _WIN32#include <sys/types.h>#include <io.h>#else#include <unistd.h>#endif // Stolen from osdep/compiler.h#ifdef __GNUC__#define PRINTF_ATTRIBUTE(a1, a2) __attribute__ ((format(printf, a1, a2)))#define MP_NORETURN __attribute__((noreturn))#else#define PRINTF_ATTRIBUTE(a1, a2)#define MP_NORETURN#endif // Broken crap with __USE_MINGW_ANSI_STDIO#if defined(__MINGW32__) && defined(__GNUC__) && !defined(__clang__)#undef PRINTF_ATTRIBUTE#define PRINTF_ATTRIBUTE(a1, a2) __attribute__ ((format (gnu_printf, a1, a2)))#endif // Global handlestatic mpv_handle *ctx;// Temporary output filestatic const char *out_path; static void exit_cleanup(void){    if (ctx)        mpv_destroy(ctx);    if (out_path && *out_path)        unlink(out_path);} MP_NORETURN PRINTF_ATTRIBUTE(1, 2)static void fail(const char *fmt, ...){    if (fmt) {        va_list va;        va_start(va, fmt);        vfprintf(stderr, fmt, va);        va_end(va);    }    exit(1);} static void check_api_error(int status){    if (status < 0)        fail("libmpv error: %s\n", mpv_error_string(status));} static void wait_done(void){    while (1) {        mpv_event *ev = mpv_wait_event(ctx, -1.0);        if (ev->event_id == MPV_EVENT_NONE)            continue;        printf("event: %s\n", mpv_event_name(ev->event_id));        if (ev->event_id == MPV_EVENT_SHUTDOWN)            return;    }} static void check_output(FILE *fp){    fseek(fp, 0, SEEK_END);    long size = ftell(fp);    if (size < 100)        fail("did not encode anything\n");     char magic[4];    fseek(fp, 0, SEEK_SET);    size_t ret = fread(magic, sizeof(magic), 1, fp);    static const char ebml_magic[] = {26, 69, 223, 163};    if (ret != 1 || memcmp(magic, ebml_magic, sizeof(magic)) != 0)        fail("output was not Matroska\n");     puts("output file ok");} int main(int argc, char *argv[]){    atexit(exit_cleanup);     ctx = mpv_create();    if (!ctx)        return 1;     static char path[] = "./testout.XXXXXX"; #ifdef _WIN32    out_path = _mktemp(path);    if (!out_path || !*out_path)        fail("tmpfile failed\n");#else    int fd = mkstemp(path);    if (fd == -1)        fail("tmpfile failed\n");    out_path = path;#endif     check_api_error(mpv_set_option_string(ctx, "o", out_path));    check_api_error(mpv_set_option_string(ctx, "of", "matroska"));    check_api_error(mpv_set_option_string(ctx, "end", "1.5"));    check_api_error(mpv_set_option_string(ctx, "terminal", "yes"));    check_api_error(mpv_set_option_string(ctx, "msg-level", "all=v"));     if (mpv_initialize(ctx) != 0)        return 1;     check_api_error(mpv_set_option_string(ctx, "idle", "once"));     const char *cmd[] = {"loadfile", "av://lavfi:testsrc", NULL};    check_api_error(mpv_command(ctx, cmd));     wait_done();    mpv_destroy(ctx);    ctx = NULL;     FILE *output = fopen(out_path, "rb");    if (!output)        fail("output file doesn't exist\n");    check_output(output);    fclose(output);     return 0;}