mirror of
https://github.com/mpv-player/mpv
synced 2024-12-27 17:42:17 +00:00
31b78ad7fa
It seems a bit inappropriate to have dumped this into stream.c, even if it's roughly speaking its main user. At least it made its way somewhat unfortunately to other components not related to the stream or demuxer layer at all. I'm too greedy to give this weird helper its own file, so dump it into thread_tools.c. Probably a somewhat pointless change.
489 lines
15 KiB
C
489 lines
15 KiB
C
/*
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* This file is part of mpv.
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*
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* mpv is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* mpv is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdbool.h>
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#include <math.h>
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#include <assert.h>
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#include <string.h>
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#include <pthread.h>
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#include <locale.h>
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#include "config.h"
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#include "mpv_talloc.h"
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#include "misc/dispatch.h"
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#include "misc/thread_pool.h"
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#include "osdep/io.h"
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#include "osdep/terminal.h"
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#include "osdep/timer.h"
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#include "osdep/main-fn.h"
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#include "common/av_log.h"
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#include "common/codecs.h"
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#include "common/encode.h"
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#include "options/m_config.h"
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#include "options/m_option.h"
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#include "options/m_property.h"
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#include "common/common.h"
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#include "common/msg.h"
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#include "common/msg_control.h"
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#include "common/global.h"
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#include "filters/f_decoder_wrapper.h"
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#include "options/parse_configfile.h"
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#include "options/parse_commandline.h"
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#include "common/playlist.h"
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#include "options/options.h"
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#include "options/path.h"
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#include "input/input.h"
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#include "audio/out/ao.h"
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#include "demux/demux.h"
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#include "misc/thread_tools.h"
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#include "sub/osd.h"
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#include "video/out/vo.h"
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#include "core.h"
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#include "client.h"
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#include "command.h"
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#include "screenshot.h"
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static const char def_config[] =
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#include "player/builtin_conf.inc"
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;
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#if HAVE_COCOA
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#include "osdep/macosx_events.h"
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#endif
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#ifndef FULLCONFIG
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#define FULLCONFIG "(missing)\n"
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#endif
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#if !HAVE_STDATOMIC
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pthread_mutex_t mp_atomic_mutex = PTHREAD_MUTEX_INITIALIZER;
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#endif
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enum exit_reason {
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EXIT_NONE,
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EXIT_NORMAL,
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EXIT_ERROR,
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};
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const char mp_help_text[] =
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"Usage: mpv [options] [url|path/]filename\n"
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"\n"
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"Basic options:\n"
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" --start=<time> seek to given (percent, seconds, or hh:mm:ss) position\n"
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" --no-audio do not play sound\n"
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" --no-video do not play video\n"
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" --fs fullscreen playback\n"
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" --sub-file=<file> specify subtitle file to use\n"
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" --playlist=<file> specify playlist file\n"
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"\n"
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" --list-options list all mpv options\n"
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" --h=<string> print options which contain the given string in their name\n"
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"\n";
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static pthread_mutex_t terminal_owner_lock = PTHREAD_MUTEX_INITIALIZER;
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static struct MPContext *terminal_owner;
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static bool cas_terminal_owner(struct MPContext *old, struct MPContext *new)
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{
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pthread_mutex_lock(&terminal_owner_lock);
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bool r = terminal_owner == old;
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if (r)
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terminal_owner = new;
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pthread_mutex_unlock(&terminal_owner_lock);
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return r;
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}
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void mp_update_logging(struct MPContext *mpctx, bool preinit)
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{
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bool had_log_file = mp_msg_has_log_file(mpctx->global);
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mp_msg_update_msglevels(mpctx->global);
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bool enable = mpctx->opts->use_terminal;
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bool enabled = cas_terminal_owner(mpctx, mpctx);
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if (enable != enabled) {
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if (enable && cas_terminal_owner(NULL, mpctx)) {
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terminal_init();
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enabled = true;
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} else if (!enable) {
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terminal_uninit();
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cas_terminal_owner(mpctx, NULL);
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}
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}
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if (mp_msg_has_log_file(mpctx->global) && !had_log_file)
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mp_print_version(mpctx->log, false); // for log-file=... in config files
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if (enabled && !preinit && mpctx->opts->consolecontrols)
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terminal_setup_getch(mpctx->input);
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}
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void mp_print_version(struct mp_log *log, int always)
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{
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int v = always ? MSGL_INFO : MSGL_V;
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mp_msg(log, v, "%s %s\n built on %s\n",
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mpv_version, mpv_copyright, mpv_builddate);
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print_libav_versions(log, v);
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mp_msg(log, v, "\n");
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// Only in verbose mode.
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if (!always) {
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mp_msg(log, MSGL_V, "Configuration: " CONFIGURATION "\n");
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mp_msg(log, MSGL_V, "List of enabled features: %s\n", FULLCONFIG);
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#ifdef NDEBUG
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mp_msg(log, MSGL_V, "Built with NDEBUG.\n");
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#endif
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}
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}
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void mp_destroy(struct MPContext *mpctx)
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{
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mp_shutdown_clients(mpctx);
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mp_uninit_ipc(mpctx->ipc_ctx);
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mpctx->ipc_ctx = NULL;
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uninit_audio_out(mpctx);
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uninit_video_out(mpctx);
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// If it's still set here, it's an error.
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encode_lavc_free(mpctx->encode_lavc_ctx);
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mpctx->encode_lavc_ctx = NULL;
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command_uninit(mpctx);
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mp_clients_destroy(mpctx);
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osd_free(mpctx->osd);
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#if HAVE_COCOA
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cocoa_set_input_context(NULL);
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#endif
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if (cas_terminal_owner(mpctx, mpctx)) {
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terminal_uninit();
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cas_terminal_owner(mpctx, NULL);
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}
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mp_input_uninit(mpctx->input);
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uninit_libav(mpctx->global);
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mp_msg_uninit(mpctx->global);
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assert(!mpctx->num_abort_list);
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talloc_free(mpctx->abort_list);
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pthread_mutex_destroy(&mpctx->abort_lock);
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talloc_free(mpctx);
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}
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static bool handle_help_options(struct MPContext *mpctx)
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{
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struct MPOpts *opts = mpctx->opts;
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struct mp_log *log = mpctx->log;
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if (opts->audio_decoders && strcmp(opts->audio_decoders, "help") == 0) {
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struct mp_decoder_list *list = audio_decoder_list();
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mp_print_decoders(log, MSGL_INFO, "Audio decoders:", list);
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talloc_free(list);
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return true;
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}
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if (opts->audio_spdif && strcmp(opts->audio_spdif, "help") == 0) {
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MP_INFO(mpctx, "Choices: ac3,dts-hd,dts (and possibly more)\n");
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return true;
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}
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if (opts->video_decoders && strcmp(opts->video_decoders, "help") == 0) {
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struct mp_decoder_list *list = video_decoder_list();
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mp_print_decoders(log, MSGL_INFO, "Video decoders:", list);
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talloc_free(list);
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return true;
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}
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if ((opts->demuxer_name && strcmp(opts->demuxer_name, "help") == 0) ||
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(opts->audio_demuxer_name && strcmp(opts->audio_demuxer_name, "help") == 0) ||
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(opts->sub_demuxer_name && strcmp(opts->sub_demuxer_name, "help") == 0)) {
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demuxer_help(log);
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MP_INFO(mpctx, "\n");
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return true;
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}
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if (opts->audio_device && strcmp(opts->audio_device, "help") == 0) {
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ao_print_devices(mpctx->global, log);
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return true;
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}
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if (opts->property_print_help) {
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property_print_help(mpctx);
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return true;
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}
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if (encode_lavc_showhelp(log, opts->encode_opts))
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return true;
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return false;
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}
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static int cfg_include(void *ctx, char *filename, int flags)
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{
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struct MPContext *mpctx = ctx;
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char *fname = mp_get_user_path(NULL, mpctx->global, filename);
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int r = m_config_parse_config_file(mpctx->mconfig, fname, NULL, flags);
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talloc_free(fname);
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return r;
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}
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static void abort_playback_cb(void *ctx)
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{
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struct MPContext *mpctx = ctx;
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mp_abort_playback_async(mpctx);
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}
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// We mostly care about LC_NUMERIC, and how "." vs. "," is treated,
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// Other locale stuff might break too, but probably isn't too bad.
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static bool check_locale(void)
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{
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char *name = setlocale(LC_NUMERIC, NULL);
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return !name || strcmp(name, "C") == 0 || strcmp(name, "C.UTF-8") == 0;
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}
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struct MPContext *mp_create(void)
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{
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if (!check_locale()) {
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// Normally, we never print anything (except if the "terminal" option
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// is enabled), so this is an exception.
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fprintf(stderr, "Non-C locale detected. This is not supported.\n"
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"Call 'setlocale(LC_NUMERIC, \"C\");' in your code.\n");
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return NULL;
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}
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char *enable_talloc = getenv("MPV_LEAK_REPORT");
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if (enable_talloc && strcmp(enable_talloc, "1") == 0)
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talloc_enable_leak_report();
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mp_time_init();
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struct MPContext *mpctx = talloc(NULL, MPContext);
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*mpctx = (struct MPContext){
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.last_chapter = -2,
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.term_osd_contents = talloc_strdup(mpctx, ""),
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.osd_progbar = { .type = -1 },
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.playlist = talloc_struct(mpctx, struct playlist, {0}),
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.dispatch = mp_dispatch_create(mpctx),
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.playback_abort = mp_cancel_new(mpctx),
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.thread_pool = mp_thread_pool_create(mpctx, 0, 1, 30),
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};
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pthread_mutex_init(&mpctx->abort_lock, NULL);
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mpctx->global = talloc_zero(mpctx, struct mpv_global);
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// Nothing must call mp_msg*() and related before this
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mp_msg_init(mpctx->global);
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mpctx->log = mp_log_new(mpctx, mpctx->global->log, "!cplayer");
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mpctx->statusline = mp_log_new(mpctx, mpctx->log, "!statusline");
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// Create the config context and register the options
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mpctx->mconfig = m_config_new(mpctx, mpctx->log, sizeof(struct MPOpts),
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&mp_default_opts, mp_opts);
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mpctx->opts = mpctx->mconfig->optstruct;
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mpctx->mconfig->includefunc = cfg_include;
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mpctx->mconfig->includefunc_ctx = mpctx;
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mpctx->mconfig->use_profiles = true;
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mpctx->mconfig->is_toplevel = true;
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mpctx->mconfig->global = mpctx->global;
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m_config_parse(mpctx->mconfig, "", bstr0(def_config), NULL, 0);
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m_config_create_shadow(mpctx->mconfig);
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mpctx->global->opts = mpctx->opts;
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mpctx->input = mp_input_init(mpctx->global, mp_wakeup_core_cb, mpctx);
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screenshot_init(mpctx);
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command_init(mpctx);
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init_libav(mpctx->global);
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mp_clients_init(mpctx);
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mpctx->osd = osd_create(mpctx->global);
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#if HAVE_COCOA
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cocoa_set_input_context(mpctx->input);
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#endif
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mp_input_set_cancel(mpctx->input, abort_playback_cb, mpctx);
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char *verbose_env = getenv("MPV_VERBOSE");
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if (verbose_env)
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mpctx->opts->verbose = atoi(verbose_env);
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return mpctx;
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}
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// Finish mpctx initialization. This must be done after setting up all options.
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// Some of the initializations depend on the options, and can't be changed or
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// undone later.
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// If options is not NULL, apply them as command line player arguments.
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// Returns: 0 on success, -1 on error, 1 if exiting normally (e.g. help).
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int mp_initialize(struct MPContext *mpctx, char **options)
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{
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struct MPOpts *opts = mpctx->opts;
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assert(!mpctx->initialized);
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// Preparse the command line, so we can init the terminal early.
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if (options)
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m_config_preparse_command_line(mpctx->mconfig, mpctx->global, options);
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mp_update_logging(mpctx, true);
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if (options) {
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MP_VERBOSE(mpctx, "Command line options:");
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for (int i = 0; options[i]; i++)
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MP_VERBOSE(mpctx, " '%s'", options[i]);
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MP_VERBOSE(mpctx, "\n");
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}
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mp_print_version(mpctx->log, false);
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mp_parse_cfgfiles(mpctx);
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if (options) {
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int r = m_config_parse_mp_command_line(mpctx->mconfig, mpctx->playlist,
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mpctx->global, options);
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if (r < 0)
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return r == M_OPT_EXIT ? 1 : -1;
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}
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if (opts->operation_mode == 1) {
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m_config_set_profile(mpctx->mconfig, "builtin-pseudo-gui",
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M_SETOPT_NO_OVERWRITE);
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m_config_set_profile(mpctx->mconfig, "pseudo-gui", 0);
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}
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mp_get_resume_defaults(mpctx);
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mp_input_load_config(mpctx->input);
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// From this point on, all mpctx members are initialized.
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mpctx->initialized = true;
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mpctx->mconfig->option_set_callback = mp_on_set_option;
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mpctx->mconfig->option_set_callback_cb = mpctx;
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mpctx->mconfig->option_change_callback = mp_option_change_callback;
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mpctx->mconfig->option_change_callback_ctx = mpctx;
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// Run all update handlers.
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mp_option_change_callback(mpctx, NULL, UPDATE_OPTS_MASK);
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if (handle_help_options(mpctx))
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return 1; // help
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if (!print_libav_versions(mp_null_log, 0)) {
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// Using mismatched libraries can be legitimate, but even then it's
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// a bad idea. We don't acknowledge its usefulness and stability.
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// Distro maintainers who patch this out should be aware that mpv
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// intentionally ignores ABI in some places where it's not possible to
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// get by without violating it.
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print_libav_versions(mpctx->log, MSGL_FATAL);
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MP_FATAL(mpctx, "\nmpv was compiled against a different version of "
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"FFmpeg/Libav than the shared\nlibrary it is linked against. "
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"This is most likely a broken build and could\nresult in "
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"misbehavior and crashes.\n\nmpv does not support this "
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"configuration and will not run - rebuild mpv instead.\n");
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return -1;
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}
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if (!mpctx->playlist->first && !opts->player_idle_mode) {
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// nothing to play
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mp_print_version(mpctx->log, true);
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MP_INFO(mpctx, "%s", mp_help_text);
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return 1;
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}
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MP_STATS(mpctx, "start init");
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#if HAVE_COCOA
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mpv_handle *ctx = mp_new_client(mpctx->clients, "osx");
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cocoa_set_mpv_handle(ctx);
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#endif
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if (opts->encode_opts->file && opts->encode_opts->file[0]) {
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mpctx->encode_lavc_ctx = encode_lavc_init(mpctx->global);
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if(!mpctx->encode_lavc_ctx) {
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MP_INFO(mpctx, "Encoding initialization failed.\n");
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return -1;
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}
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m_config_set_profile(mpctx->mconfig, "encoding", 0);
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mp_input_enable_section(mpctx->input, "encode", MP_INPUT_EXCLUSIVE);
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}
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#if !HAVE_LIBASS
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MP_WARN(mpctx, "Compiled without libass.\n");
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MP_WARN(mpctx, "There will be no OSD and no text subtitles.\n");
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#endif
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mp_load_scripts(mpctx);
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if (opts->force_vo == 2 && handle_force_window(mpctx, false) < 0)
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return -1;
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MP_STATS(mpctx, "end init");
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return 0;
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}
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int mpv_main(int argc, char *argv[])
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{
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struct MPContext *mpctx = mp_create();
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if (!mpctx)
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return 1;
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mpctx->is_cli = true;
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char **options = argv && argv[0] ? argv + 1 : NULL; // skips program name
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int r = mp_initialize(mpctx, options);
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if (r == 0)
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mp_play_files(mpctx);
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int rc = 0;
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const char *reason = NULL;
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if (r < 0) {
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reason = "Fatal error";
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rc = 1;
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} else if (r > 0) {
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// nothing
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} else if (mpctx->stop_play == PT_QUIT) {
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reason = "Quit";
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} else if (mpctx->files_played) {
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if (mpctx->files_errored || mpctx->files_broken) {
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reason = "Some errors happened";
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rc = 3;
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} else {
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reason = "End of file";
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}
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} else if (mpctx->files_broken && !mpctx->files_errored) {
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reason = "Errors when loading file";
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rc = 2;
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} else if (mpctx->files_errored) {
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reason = "Interrupted by error";
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rc = 2;
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} else {
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reason = "No files played";
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}
|
|
|
|
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;
|
|
}
|