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test: add an encoding test with libmpv
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/* | ||
* 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/>. | ||
*/ | ||
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#include <inttypes.h> | ||
#include <libmpv/client.h> | ||
#include <stdarg.h> | ||
#include <stdio.h> | ||
#include <stdlib.h> | ||
#include <unistd.h> | ||
#include <string.h> | ||
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// 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 | ||
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// 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 | ||
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// Global handle | ||
static mpv_handle *ctx; | ||
// Temporary output file | ||
static const char *out_path; | ||
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static void exit_cleanup(void) | ||
{ | ||
if (ctx) | ||
mpv_destroy(ctx); | ||
if (out_path) | ||
unlink(out_path); | ||
} | ||
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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); | ||
} | ||
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static void check_api_error(int status) | ||
{ | ||
if (status < 0) | ||
fail("libmpv error: %s\n", mpv_error_string(status)); | ||
} | ||
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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; | ||
} | ||
} | ||
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static void check_output(int fd) | ||
{ | ||
off_t size = lseek(fd, 0, SEEK_END); | ||
if (size < 100) | ||
fail("did not encode anything"); | ||
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char magic[4] = {0}; | ||
lseek(fd, 0, SEEK_SET); | ||
read(fd, magic, sizeof(magic)); | ||
static const char ebml_magic[] = {26, 69, 223, 163}; | ||
if (memcmp(magic, ebml_magic, 4) != 0) | ||
fail("output was not Matroska"); | ||
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puts("output file ok"); | ||
} | ||
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int main(int argc, char *argv[]) | ||
{ | ||
atexit(exit_cleanup); | ||
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ctx = mpv_create(); | ||
if (!ctx) | ||
return 1; | ||
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int fd; | ||
{ | ||
char path[] = "./testout.XXXXXX"; | ||
fd = mkstemp(path); | ||
if (fd == -1) | ||
fail("mkstemp failed"); | ||
out_path = strdup(path); | ||
} | ||
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")); | ||
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if (mpv_initialize(ctx) != 0) | ||
return 1; | ||
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check_api_error(mpv_set_option_string(ctx, "terminal", "yes")); | ||
check_api_error(mpv_set_option_string(ctx, "msg-level", "all=v")); | ||
check_api_error(mpv_set_option_string(ctx, "idle", "once")); | ||
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const char *cmd[] = {"loadfile", "av://lavfi:testsrc", NULL}; | ||
check_api_error(mpv_command(ctx, cmd)); | ||
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wait_done(); | ||
mpv_destroy(ctx); | ||
ctx = NULL; | ||
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check_output(fd); | ||
close(fd); | ||
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return 0; | ||
} |
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