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mirror of https://github.com/mpv-player/mpv synced 2024-12-29 02:22:19 +00:00
mpv/player/main.c
wm4 76e7e78ce9 audio: move to decoder wrapper
Use the decoder wrapper that was introduced for video. This removes all
code duplication the old audio decoder wrapper had with the video code.

(The audio wrapper was copy pasted from the video one over a decade ago,
and has been kept in sync ever since by the power of copy&paste. Since
the original copy&paste was possibly done by someone who did not answer
to the LGPL relicensing, this should also remove all doubts about
whether any of this code is left, since we now completely remove any
code that could possibly have been based on it.)

There is some complication with spdif handling, and a minor behavior
change (it will restrict the list of codecs to spdif if spdif is to be
used), but there should not be any difference in practice.
2018-01-30 03:10:27 -08:00

498 lines
14 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 "config.h"
#include "mpv_talloc.h"
#include "misc/dispatch.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 "stream/stream.h"
#include "sub/osd.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);
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
}
}
static void shutdown_clients(struct MPContext *mpctx)
{
mp_client_enter_shutdown(mpctx);
while (mp_clients_num(mpctx) || mpctx->outstanding_async) {
mp_client_broadcast_event(mpctx, MPV_EVENT_SHUTDOWN, NULL);
mp_wait_events(mpctx);
}
}
void mp_destroy(struct MPContext *mpctx)
{
shutdown_clients(mpctx);
mp_uninit_ipc(mpctx->ipc_ctx);
mpctx->ipc_ctx = NULL;
uninit_audio_out(mpctx);
uninit_video_out(mpctx);
#if HAVE_ENCODING
encode_lavc_finish(mpctx->encode_lavc_ctx);
encode_lavc_free(mpctx->encode_lavc_ctx);
#endif
mpctx->encode_lavc_ctx = NULL;
command_uninit(mpctx);
mp_clients_destroy(mpctx);
talloc_free(mpctx->gl_cb_ctx);
mpctx->gl_cb_ctx = NULL;
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);
if (mpctx->autodetach)
pthread_detach(pthread_self());
mp_msg_uninit(mpctx->global);
pthread_mutex_destroy(&mpctx->lock);
talloc_free(mpctx);
}
static int prepare_exit_cplayer(struct MPContext *mpctx, enum exit_reason how)
{
int rc = 0;
const char *reason = NULL;
if (how == EXIT_ERROR) {
reason = "Fatal error";
rc = 1;
} else if (how == EXIT_NORMAL) {
if (mpctx->stop_play == PT_QUIT) {
reason = "Quit";
rc = 0;
} else if (mpctx->files_played) {
if (mpctx->files_errored || mpctx->files_broken) {
reason = "Some errors happened";
rc = 3;
} else {
reason = "End of file";
rc = 0;
}
} 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";
rc = 0;
}
}
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;
}
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->audio_device && strcmp(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 HAVE_ENCODING
if (encode_lavc_showhelp(log, opts->encode_opts))
return true;
#endif
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;
}
static void abort_playback_cb(void *ctx)
{
struct MPContext *mpctx = ctx;
mp_abort_playback_async(mpctx);
}
struct MPContext *mp_create(void)
{
char *enable_talloc = getenv("MPV_LEAK_REPORT");
if (enable_talloc && 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),
};
pthread_mutex_init(&mpctx->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, sizeof(struct MPOpts),
&mp_default_opts, mp_opts);
mpctx->opts = mpctx->mconfig->optstruct;
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);
m_config_create_shadow(mpctx->mconfig);
mpctx->global->opts = mpctx->opts;
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
mp_input_set_cancel(mpctx->input, abort_playback_cb, mpctx);
char *verbose_env = getenv("MPV_VERBOSE");
if (verbose_env)
mpctx->opts->verbose = atoi(verbose_env);
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 error, 0 on success.
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, options);
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 ? -2 : -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_set_callback = mp_on_set_option;
mpctx->mconfig->option_set_callback_cb = mpctx;
mpctx->mconfig->option_change_callback = mp_option_change_callback;
mpctx->mconfig->option_change_callback_ctx = mpctx;
// Run all update handlers.
mp_option_change_callback(mpctx, NULL, UPDATE_OPTS_MASK);
if (handle_help_options(mpctx))
return -2;
if (!print_libav_versions(mp_null_log, 0)) {
// Using mismatched libraries can be legitimate, but even then it's
// a bad idea. We don't acknowledge its usefulness and stability.
print_libav_versions(mpctx->log, MSGL_FATAL);
MP_FATAL(mpctx, "\nmpv was compiled against a different 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\nmpv does not support this "
"configuration and will not run - rebuild mpv instead.\n");
return -1;
}
if (!mpctx->playlist->first && !opts->player_idle_mode)
return -3;
MP_STATS(mpctx, "start init");
#if HAVE_COCOA
mpv_handle *ctx = mp_new_client(mpctx->clients, "osx");
cocoa_set_mpv_handle(ctx);
#endif
#if HAVE_ENCODING
if (opts->encode_opts->file && opts->encode_opts->file[0]) {
mpctx->encode_lavc_ctx = encode_lavc_init(opts->encode_opts,
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);
}
#endif
#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();
char **options = argv && argv[0] ? argv + 1 : NULL; // skips program name
int r = mp_initialize(mpctx, options);
if (r == -2) // help
return prepare_exit_cplayer(mpctx, EXIT_NONE);
if (r == -3) { // nothing to play
mp_print_version(mpctx->log, true);
MP_INFO(mpctx, "%s", mp_help_text);
return prepare_exit_cplayer(mpctx, EXIT_NONE);
}
if (r < 0) // another error
return prepare_exit_cplayer(mpctx, EXIT_ERROR);
mp_play_files(mpctx);
return prepare_exit_cplayer(mpctx, EXIT_NORMAL);
}