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mirror of https://github.com/mpv-player/mpv synced 2024-12-24 15:52:25 +00:00
mpv/player/main.c
wm4 1ea145a9a1 player: make failure to load scripts non-fatal again
Restore the behavior from a few commits ago. I decided that it's strange
that this is fatal, since e.g. config file errors are also non-fatal.
2020-01-20 19:58:51 +01:00

493 lines
15 KiB
C

/*
* 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 <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <math.h>
#include <assert.h>
#include <string.h>
#include <pthread.h>
#include <locale.h>
#include "config.h"
#include "mpv_talloc.h"
#include "misc/dispatch.h"
#include "misc/thread_pool.h"
#include "osdep/io.h"
#include "osdep/terminal.h"
#include "osdep/timer.h"
#include "osdep/main-fn.h"
#include "common/av_log.h"
#include "common/codecs.h"
#include "common/encode.h"
#include "options/m_config.h"
#include "options/m_option.h"
#include "options/m_property.h"
#include "common/common.h"
#include "common/msg.h"
#include "common/msg_control.h"
#include "common/global.h"
#include "filters/f_decoder_wrapper.h"
#include "options/parse_configfile.h"
#include "options/parse_commandline.h"
#include "common/playlist.h"
#include "options/options.h"
#include "options/path.h"
#include "input/input.h"
#include "audio/out/ao.h"
#include "demux/demux.h"
#include "misc/thread_tools.h"
#include "sub/osd.h"
#include "test/tests.h"
#include "video/out/vo.h"
#include "core.h"
#include "client.h"
#include "command.h"
#include "screenshot.h"
static const char def_config[] =
#include "player/builtin_conf.inc"
;
#if HAVE_COCOA
#include "osdep/macosx_events.h"
#endif
#ifndef FULLCONFIG
#define FULLCONFIG "(missing)\n"
#endif
#if !HAVE_STDATOMIC
pthread_mutex_t mp_atomic_mutex = PTHREAD_MUTEX_INITIALIZER;
#endif
enum exit_reason {
EXIT_NONE,
EXIT_NORMAL,
EXIT_ERROR,
};
const char mp_help_text[] =
"Usage: mpv [options] [url|path/]filename\n"
"\n"
"Basic options:\n"
" --start=<time> seek to given (percent, seconds, or hh:mm:ss) position\n"
" --no-audio do not play sound\n"
" --no-video do not play video\n"
" --fs fullscreen playback\n"
" --sub-file=<file> specify subtitle file to use\n"
" --playlist=<file> specify playlist file\n"
"\n"
" --list-options list all mpv options\n"
" --h=<string> print options which contain the given string in their name\n"
"\n";
static pthread_mutex_t terminal_owner_lock = PTHREAD_MUTEX_INITIALIZER;
static struct MPContext *terminal_owner;
static bool cas_terminal_owner(struct MPContext *old, struct MPContext *new)
{
pthread_mutex_lock(&terminal_owner_lock);
bool r = terminal_owner == old;
if (r)
terminal_owner = new;
pthread_mutex_unlock(&terminal_owner_lock);
return r;
}
void mp_update_logging(struct MPContext *mpctx, bool preinit)
{
bool had_log_file = mp_msg_has_log_file(mpctx->global);
mp_msg_update_msglevels(mpctx->global, mpctx->opts);
bool enable = mpctx->opts->use_terminal;
bool enabled = cas_terminal_owner(mpctx, mpctx);
if (enable != enabled) {
if (enable && cas_terminal_owner(NULL, mpctx)) {
terminal_init();
enabled = true;
} else if (!enable) {
terminal_uninit();
cas_terminal_owner(mpctx, NULL);
}
}
if (mp_msg_has_log_file(mpctx->global) && !had_log_file)
mp_print_version(mpctx->log, false); // for log-file=... in config files
if (enabled && !preinit && mpctx->opts->consolecontrols)
terminal_setup_getch(mpctx->input);
}
void mp_print_version(struct mp_log *log, int always)
{
int v = always ? MSGL_INFO : MSGL_V;
mp_msg(log, v, "%s %s\n built on %s\n",
mpv_version, mpv_copyright, mpv_builddate);
print_libav_versions(log, v);
mp_msg(log, v, "\n");
// Only in verbose mode.
if (!always) {
mp_msg(log, MSGL_V, "Configuration: " CONFIGURATION "\n");
mp_msg(log, MSGL_V, "List of enabled features: %s\n", FULLCONFIG);
#ifdef NDEBUG
mp_msg(log, MSGL_V, "Built with NDEBUG.\n");
#endif
}
}
void mp_destroy(struct MPContext *mpctx)
{
mp_shutdown_clients(mpctx);
mp_uninit_ipc(mpctx->ipc_ctx);
mpctx->ipc_ctx = NULL;
uninit_audio_out(mpctx);
uninit_video_out(mpctx);
// If it's still set here, it's an error.
encode_lavc_free(mpctx->encode_lavc_ctx);
mpctx->encode_lavc_ctx = NULL;
command_uninit(mpctx);
mp_clients_destroy(mpctx);
osd_free(mpctx->osd);
#if HAVE_COCOA
cocoa_set_input_context(NULL);
#endif
if (cas_terminal_owner(mpctx, mpctx)) {
terminal_uninit();
cas_terminal_owner(mpctx, NULL);
}
mp_input_uninit(mpctx->input);
uninit_libav(mpctx->global);
mp_msg_uninit(mpctx->global);
assert(!mpctx->num_abort_list);
talloc_free(mpctx->abort_list);
pthread_mutex_destroy(&mpctx->abort_lock);
talloc_free(mpctx->mconfig); // destroy before dispatch
talloc_free(mpctx);
}
static bool handle_help_options(struct MPContext *mpctx)
{
struct MPOpts *opts = mpctx->opts;
struct mp_log *log = mpctx->log;
if (opts->audio_decoders && strcmp(opts->audio_decoders, "help") == 0) {
struct mp_decoder_list *list = audio_decoder_list();
mp_print_decoders(log, MSGL_INFO, "Audio decoders:", list);
talloc_free(list);
return true;
}
if (opts->audio_spdif && strcmp(opts->audio_spdif, "help") == 0) {
MP_INFO(mpctx, "Choices: ac3,dts-hd,dts (and possibly more)\n");
return true;
}
if (opts->video_decoders && strcmp(opts->video_decoders, "help") == 0) {
struct mp_decoder_list *list = video_decoder_list();
mp_print_decoders(log, MSGL_INFO, "Video decoders:", list);
talloc_free(list);
return true;
}
if ((opts->demuxer_name && strcmp(opts->demuxer_name, "help") == 0) ||
(opts->audio_demuxer_name && strcmp(opts->audio_demuxer_name, "help") == 0) ||
(opts->sub_demuxer_name && strcmp(opts->sub_demuxer_name, "help") == 0)) {
demuxer_help(log);
MP_INFO(mpctx, "\n");
return true;
}
if (opts->ao_opts->audio_device &&
strcmp(opts->ao_opts->audio_device, "help") == 0)
{
ao_print_devices(mpctx->global, log);
return true;
}
if (opts->property_print_help) {
property_print_help(mpctx);
return true;
}
if (encode_lavc_showhelp(log, opts->encode_opts))
return true;
return false;
}
static int cfg_include(void *ctx, char *filename, int flags)
{
struct MPContext *mpctx = ctx;
char *fname = mp_get_user_path(NULL, mpctx->global, filename);
int r = m_config_parse_config_file(mpctx->mconfig, fname, NULL, flags);
talloc_free(fname);
return r;
}
// We mostly care about LC_NUMERIC, and how "." vs. "," is treated,
// Other locale stuff might break too, but probably isn't too bad.
static bool check_locale(void)
{
char *name = setlocale(LC_NUMERIC, NULL);
return !name || strcmp(name, "C") == 0 || strcmp(name, "C.UTF-8") == 0;
}
struct MPContext *mp_create(void)
{
if (!check_locale()) {
// Normally, we never print anything (except if the "terminal" option
// is enabled), so this is an exception.
fprintf(stderr, "Non-C locale detected. This is not supported.\n"
"Call 'setlocale(LC_NUMERIC, \"C\");' in your code.\n");
return NULL;
}
char *enable_talloc = getenv("MPV_LEAK_REPORT");
if (!enable_talloc)
enable_talloc = HAVE_TA_LEAK_REPORT ? "1" : "0";
if (strcmp(enable_talloc, "1") == 0)
talloc_enable_leak_report();
mp_time_init();
struct MPContext *mpctx = talloc(NULL, MPContext);
*mpctx = (struct MPContext){
.last_chapter = -2,
.term_osd_contents = talloc_strdup(mpctx, ""),
.osd_progbar = { .type = -1 },
.playlist = talloc_struct(mpctx, struct playlist, {0}),
.dispatch = mp_dispatch_create(mpctx),
.playback_abort = mp_cancel_new(mpctx),
.thread_pool = mp_thread_pool_create(mpctx, 0, 1, 30),
.stop_play = PT_STOP,
.play_dir = 1,
};
pthread_mutex_init(&mpctx->abort_lock, NULL);
mpctx->global = talloc_zero(mpctx, struct mpv_global);
// Nothing must call mp_msg*() and related before this
mp_msg_init(mpctx->global);
mpctx->log = mp_log_new(mpctx, mpctx->global->log, "!cplayer");
mpctx->statusline = mp_log_new(mpctx, mpctx->log, "!statusline");
// Create the config context and register the options
mpctx->mconfig = m_config_new(mpctx, mpctx->log, &mp_opt_root);
mpctx->opts = mpctx->mconfig->optstruct;
mpctx->global->config = mpctx->mconfig->shadow;
mpctx->mconfig->includefunc = cfg_include;
mpctx->mconfig->includefunc_ctx = mpctx;
mpctx->mconfig->use_profiles = true;
mpctx->mconfig->is_toplevel = true;
mpctx->mconfig->global = mpctx->global;
m_config_parse(mpctx->mconfig, "", bstr0(def_config), NULL, 0);
mpctx->input = mp_input_init(mpctx->global, mp_wakeup_core_cb, mpctx);
screenshot_init(mpctx);
command_init(mpctx);
init_libav(mpctx->global);
mp_clients_init(mpctx);
mpctx->osd = osd_create(mpctx->global);
#if HAVE_COCOA
cocoa_set_input_context(mpctx->input);
#endif
char *verbose_env = getenv("MPV_VERBOSE");
if (verbose_env)
mpctx->opts->verbose = atoi(verbose_env);
mp_cancel_trigger(mpctx->playback_abort);
return mpctx;
}
// Finish mpctx initialization. This must be done after setting up all options.
// Some of the initializations depend on the options, and can't be changed or
// undone later.
// If options is not NULL, apply them as command line player arguments.
// Returns: 0 on success, -1 on error, 1 if exiting normally (e.g. help).
int mp_initialize(struct MPContext *mpctx, char **options)
{
struct MPOpts *opts = mpctx->opts;
assert(!mpctx->initialized);
// Preparse the command line, so we can init the terminal early.
if (options) {
m_config_preparse_command_line(mpctx->mconfig, mpctx->global,
&opts->verbose, options);
}
mp_init_paths(mpctx->global, opts);
mp_msg_set_early_logging(mpctx->global, true);
mp_update_logging(mpctx, true);
if (options) {
MP_VERBOSE(mpctx, "Command line options:");
for (int i = 0; options[i]; i++)
MP_VERBOSE(mpctx, " '%s'", options[i]);
MP_VERBOSE(mpctx, "\n");
}
mp_print_version(mpctx->log, false);
mp_parse_cfgfiles(mpctx);
if (options) {
int r = m_config_parse_mp_command_line(mpctx->mconfig, mpctx->playlist,
mpctx->global, options);
if (r < 0)
return r == M_OPT_EXIT ? 1 : -1;
}
if (opts->operation_mode == 1) {
m_config_set_profile(mpctx->mconfig, "builtin-pseudo-gui",
M_SETOPT_NO_OVERWRITE);
m_config_set_profile(mpctx->mconfig, "pseudo-gui", 0);
}
mp_get_resume_defaults(mpctx);
mp_input_load_config(mpctx->input);
// From this point on, all mpctx members are initialized.
mpctx->initialized = true;
mpctx->mconfig->option_change_callback = mp_option_change_callback;
mpctx->mconfig->option_change_callback_ctx = mpctx;
m_config_set_update_dispatch_queue(mpctx->mconfig, mpctx->dispatch);
// Run all update handlers.
mp_option_change_callback(mpctx, NULL, UPDATE_OPTS_MASK, false);
if (handle_help_options(mpctx))
return 1; // help
if (!print_libav_versions(mp_null_log, 0)) {
// This happens only if the runtime FFmpeg version is lower than the
// build version, which will not work according to FFmpeg's ABI rules.
// This does not happen if runtime FFmpeg is newer, which is compatible.
print_libav_versions(mpctx->log, MSGL_FATAL);
MP_FATAL(mpctx, "\nmpv was compiled against an incompatible version of "
"FFmpeg/Libav than the shared\nlibrary it is linked against. "
"This is most likely a broken build and could\nresult in "
"misbehavior and crashes.\n\nThis is a broken build.\n");
return -1;
}
#if HAVE_TESTS
if (opts->test_mode && opts->test_mode[0])
return run_tests(mpctx) ? 1 : -1;
#endif
if (!mpctx->playlist->num_entries && !opts->player_idle_mode) {
// nothing to play
mp_print_version(mpctx->log, true);
MP_INFO(mpctx, "%s", mp_help_text);
return 1;
}
MP_STATS(mpctx, "start init");
#if HAVE_COCOA
mpv_handle *ctx = mp_new_client(mpctx->clients, "osx");
cocoa_set_mpv_handle(ctx);
#endif
if (opts->encode_opts->file && opts->encode_opts->file[0]) {
mpctx->encode_lavc_ctx = encode_lavc_init(mpctx->global);
if(!mpctx->encode_lavc_ctx) {
MP_INFO(mpctx, "Encoding initialization failed.\n");
return -1;
}
m_config_set_profile(mpctx->mconfig, "encoding", 0);
mp_input_enable_section(mpctx->input, "encode", MP_INPUT_EXCLUSIVE);
}
#if !HAVE_LIBASS
MP_WARN(mpctx, "Compiled without libass.\n");
MP_WARN(mpctx, "There will be no OSD and no text subtitles.\n");
#endif
mp_load_scripts(mpctx);
if (opts->force_vo == 2 && handle_force_window(mpctx, false) < 0)
return -1;
MP_STATS(mpctx, "end init");
return 0;
}
int mpv_main(int argc, char *argv[])
{
struct MPContext *mpctx = mp_create();
if (!mpctx)
return 1;
mpctx->is_cli = true;
char **options = argv && argv[0] ? argv + 1 : NULL; // skips program name
int r = mp_initialize(mpctx, options);
if (r == 0)
mp_play_files(mpctx);
int rc = 0;
const char *reason = NULL;
if (r < 0) {
reason = "Fatal error";
rc = 1;
} else if (r > 0) {
// nothing
} else if (mpctx->stop_play == PT_QUIT) {
reason = "Quit";
} else if (mpctx->files_played) {
if (mpctx->files_errored || mpctx->files_broken) {
reason = "Some errors happened";
rc = 3;
} else {
reason = "End of file";
}
} else if (mpctx->files_broken && !mpctx->files_errored) {
reason = "Errors when loading file";
rc = 2;
} else if (mpctx->files_errored) {
reason = "Interrupted by error";
rc = 2;
} else {
reason = "No files played";
}
if (reason)
MP_INFO(mpctx, "\nExiting... (%s)\n", reason);
if (mpctx->has_quit_custom_rc)
rc = mpctx->quit_custom_rc;
mp_destroy(mpctx);
return rc;
}