mirror of
https://github.com/mpv-player/mpv.git
synced 2024-09-20 03:52:22 +02:00
fd3caa264e
Add an infrastructure for collecting performance-related data, use it in some places. Add rendering of them to stats.lua. There were two main goals: minimal impact on the normal code and normal playback. So all these stats_* function calls either happen only during initialization, or return immediately if no stats collection is going on. That's why it does this lazily adding of stats entries etc. (a first iteration made each stats entry an API thing, instead of just a single stats_ctx, but I thought that was getting too intrusive in the "normal" code, even if everything gets worse inside of stats.c). You could get most of this information from various profilers (including the extremely primitive --dump-stats thing in mpv), but this makes it easier to see the most important information at once (at least in theory), partially because we know best about the context of various things. Not very happy with this. It's all pretty primitive and dumb. At this point I just wanted to get over with it, without necessarily having to revisit it later, but with having my stupid statistics. Somehow the code feels terrible. There are a lot of meh decisions in there that could be better or worse (but mostly could be better), and it just sucks but it's also trivial and uninteresting and does the job. I guess I hate programming. It's so tedious and the result is always shit. Anyway, enjoy.
469 lines
14 KiB
C
469 lines
14 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/stats.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 "test/tests.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, mpctx->opts);
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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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check_library_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->mconfig); // destroy before dispatch
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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->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->ao_opts->audio_device &&
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strcmp(opts->ao_opts->audio_device, "help") == 0)
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{
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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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// 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)
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enable_talloc = HAVE_TA_LEAK_REPORT ? "1" : "0";
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if (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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.stop_play = PT_NEXT_ENTRY,
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.play_dir = 1,
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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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stats_global_init(mpctx->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, &mp_opt_root);
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mpctx->opts = mpctx->mconfig->optstruct;
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mpctx->global->config = mpctx->mconfig->shadow;
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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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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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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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mp_cancel_trigger(mpctx->playback_abort);
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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,
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&opts->verbose, options);
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}
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mp_init_paths(mpctx->global, opts);
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mp_msg_set_early_logging(mpctx->global, true);
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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_change_callback = mp_option_change_callback;
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mpctx->mconfig->option_change_callback_ctx = mpctx;
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m_config_set_update_dispatch_queue(mpctx->mconfig, mpctx->dispatch);
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// Run all update handlers.
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mp_option_change_callback(mpctx, NULL, UPDATE_OPTS_MASK, false);
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if (handle_help_options(mpctx))
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return 1; // help
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check_library_versions(mp_null_log, 0);
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#if HAVE_TESTS
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if (opts->test_mode && opts->test_mode[0])
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return run_tests(mpctx) ? 1 : -1;
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#endif
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if (!mpctx->playlist->num_entries && !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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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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// Needed to properly enter _initial_ idle mode if playlist empty.
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if (mpctx->opts->player_idle_mode && !mpctx->playlist->num_entries)
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mpctx->stop_play = PT_STOP;
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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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}
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if (reason)
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MP_INFO(mpctx, "Exiting... (%s)\n", reason);
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if (mpctx->has_quit_custom_rc)
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rc = mpctx->quit_custom_rc;
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mp_destroy(mpctx);
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return rc;
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}
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