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🎥 Command line media player
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C
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154/* * 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[]){ ctx = mpv_create(); if (!ctx) return 1;
atexit(exit_cleanup);
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;}