mpd/src/command/PlayerCommands.cxx
2015-08-13 12:48:31 +02:00

386 lines
10 KiB
C++

/*
* Copyright (C) 2003-2015 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include "PlayerCommands.hxx"
#include "Request.hxx"
#include "CommandError.hxx"
#include "queue/Playlist.hxx"
#include "PlaylistPrint.hxx"
#include "client/Client.hxx"
#include "client/Response.hxx"
#include "mixer/Volume.hxx"
#include "Partition.hxx"
#include "Instance.hxx"
#include "AudioFormat.hxx"
#include "ReplayGainConfig.hxx"
#include "util/ConstBuffer.hxx"
#ifdef ENABLE_DATABASE
#include "db/update/Service.hxx"
#endif
#define COMMAND_STATUS_STATE "state"
#define COMMAND_STATUS_REPEAT "repeat"
#define COMMAND_STATUS_SINGLE "single"
#define COMMAND_STATUS_CONSUME "consume"
#define COMMAND_STATUS_RANDOM "random"
#define COMMAND_STATUS_PLAYLIST "playlist"
#define COMMAND_STATUS_PLAYLIST_LENGTH "playlistlength"
#define COMMAND_STATUS_SONG "song"
#define COMMAND_STATUS_SONGID "songid"
#define COMMAND_STATUS_NEXTSONG "nextsong"
#define COMMAND_STATUS_NEXTSONGID "nextsongid"
#define COMMAND_STATUS_TIME "time"
#define COMMAND_STATUS_BITRATE "bitrate"
#define COMMAND_STATUS_ERROR "error"
#define COMMAND_STATUS_CROSSFADE "xfade"
#define COMMAND_STATUS_MIXRAMPDB "mixrampdb"
#define COMMAND_STATUS_MIXRAMPDELAY "mixrampdelay"
#define COMMAND_STATUS_AUDIO "audio"
#define COMMAND_STATUS_UPDATING_DB "updating_db"
CommandResult
handle_play(Client &client, Request args, Response &r)
{
int song = -1;
if (!args.ParseOptional(0, song, r))
return CommandResult::ERROR;
PlaylistResult result = client.partition.PlayPosition(song);
return print_playlist_result(r, result);
}
CommandResult
handle_playid(Client &client, Request args, Response &r)
{
int id = -1;
if (!args.ParseOptional(0, id, r))
return CommandResult::ERROR;
PlaylistResult result = client.partition.PlayId(id);
return print_playlist_result(r, result);
}
CommandResult
handle_stop(Client &client, gcc_unused Request args, gcc_unused Response &r)
{
client.partition.Stop();
return CommandResult::OK;
}
CommandResult
handle_currentsong(Client &client, gcc_unused Request args, Response &r)
{
playlist_print_current(r, client.partition, client.playlist);
return CommandResult::OK;
}
CommandResult
handle_pause(Client &client, Request args, Response &r)
{
if (!args.IsEmpty()) {
bool pause_flag;
if (!args.Parse(0, pause_flag, r))
return CommandResult::ERROR;
client.player_control.SetPause(pause_flag);
} else
client.player_control.Pause();
return CommandResult::OK;
}
CommandResult
handle_status(Client &client, gcc_unused Request args, Response &r)
{
const char *state = nullptr;
int song;
const auto player_status = client.player_control.GetStatus();
switch (player_status.state) {
case PlayerState::STOP:
state = "stop";
break;
case PlayerState::PAUSE:
state = "pause";
break;
case PlayerState::PLAY:
state = "play";
break;
}
const playlist &playlist = client.playlist;
r.Format("volume: %i\n"
COMMAND_STATUS_REPEAT ": %i\n"
COMMAND_STATUS_RANDOM ": %i\n"
COMMAND_STATUS_SINGLE ": %i\n"
COMMAND_STATUS_CONSUME ": %i\n"
COMMAND_STATUS_PLAYLIST ": %li\n"
COMMAND_STATUS_PLAYLIST_LENGTH ": %i\n"
COMMAND_STATUS_MIXRAMPDB ": %f\n"
COMMAND_STATUS_STATE ": %s\n",
volume_level_get(client.partition.outputs),
playlist.GetRepeat(),
playlist.GetRandom(),
playlist.GetSingle(),
playlist.GetConsume(),
(unsigned long)playlist.GetVersion(),
playlist.GetLength(),
client.player_control.GetMixRampDb(),
state);
if (client.player_control.GetCrossFade() > 0)
r.Format(COMMAND_STATUS_CROSSFADE ": %i\n",
int(client.player_control.GetCrossFade() + 0.5));
if (client.player_control.GetMixRampDelay() > 0)
r.Format(COMMAND_STATUS_MIXRAMPDELAY ": %f\n",
client.player_control.GetMixRampDelay());
song = playlist.GetCurrentPosition();
if (song >= 0) {
r.Format(COMMAND_STATUS_SONG ": %i\n"
COMMAND_STATUS_SONGID ": %u\n",
song, playlist.PositionToId(song));
}
if (player_status.state != PlayerState::STOP) {
r.Format(COMMAND_STATUS_TIME ": %i:%i\n"
"elapsed: %1.3f\n"
COMMAND_STATUS_BITRATE ": %u\n",
player_status.elapsed_time.RoundS(),
player_status.total_time.IsNegative()
? 0u
: unsigned(player_status.total_time.RoundS()),
player_status.elapsed_time.ToDoubleS(),
player_status.bit_rate);
if (!player_status.total_time.IsNegative())
r.Format("duration: %1.3f\n",
player_status.total_time.ToDoubleS());
if (player_status.audio_format.IsDefined()) {
struct audio_format_string af_string;
r.Format(COMMAND_STATUS_AUDIO ": %s\n",
audio_format_to_string(player_status.audio_format,
&af_string));
}
}
#ifdef ENABLE_DATABASE
const UpdateService *update_service = client.partition.instance.update;
unsigned updateJobId = update_service != nullptr
? update_service->GetId()
: 0;
if (updateJobId != 0) {
r.Format(COMMAND_STATUS_UPDATING_DB ": %i\n",
updateJobId);
}
#endif
Error error = client.player_control.LockGetError();
if (error.IsDefined())
r.Format(COMMAND_STATUS_ERROR ": %s\n",
error.GetMessage());
song = playlist.GetNextPosition();
if (song >= 0)
r.Format(COMMAND_STATUS_NEXTSONG ": %i\n"
COMMAND_STATUS_NEXTSONGID ": %u\n",
song, playlist.PositionToId(song));
return CommandResult::OK;
}
CommandResult
handle_next(Client &client, gcc_unused Request args, gcc_unused Response &r)
{
playlist &playlist = client.playlist;
/* single mode is not considered when this is user who
* wants to change song. */
const bool single = playlist.queue.single;
playlist.queue.single = false;
client.partition.PlayNext();
playlist.queue.single = single;
return CommandResult::OK;
}
CommandResult
handle_previous(Client &client, gcc_unused Request args,
gcc_unused Response &r)
{
client.partition.PlayPrevious();
return CommandResult::OK;
}
CommandResult
handle_repeat(Client &client, Request args, Response &r)
{
bool status;
if (!args.Parse(0, status, r))
return CommandResult::ERROR;
client.partition.SetRepeat(status);
return CommandResult::OK;
}
CommandResult
handle_single(Client &client, Request args, Response &r)
{
bool status;
if (!args.Parse(0, status, r))
return CommandResult::ERROR;
client.partition.SetSingle(status);
return CommandResult::OK;
}
CommandResult
handle_consume(Client &client, Request args, Response &r)
{
bool status;
if (!args.Parse(0, status, r))
return CommandResult::ERROR;
client.partition.SetConsume(status);
return CommandResult::OK;
}
CommandResult
handle_random(Client &client, Request args, Response &r)
{
bool status;
if (!args.Parse(0, status, r))
return CommandResult::ERROR;
client.partition.SetRandom(status);
client.partition.outputs.SetReplayGainMode(replay_gain_get_real_mode(client.partition.GetRandom()));
return CommandResult::OK;
}
CommandResult
handle_clearerror(Client &client, gcc_unused Request args,
gcc_unused Response &r)
{
client.player_control.ClearError();
return CommandResult::OK;
}
CommandResult
handle_seek(Client &client, Request args, Response &r)
{
unsigned song;
SongTime seek_time;
if (!args.Parse(0, song, r) || !args.Parse(1, seek_time, r))
return CommandResult::ERROR;
PlaylistResult result =
client.partition.SeekSongPosition(song, seek_time);
return print_playlist_result(r, result);
}
CommandResult
handle_seekid(Client &client, Request args, Response &r)
{
unsigned id;
SongTime seek_time;
if (!args.Parse(0, id, r))
return CommandResult::ERROR;
if (!args.Parse(1, seek_time, r))
return CommandResult::ERROR;
PlaylistResult result =
client.partition.SeekSongId(id, seek_time);
return print_playlist_result(r, result);
}
CommandResult
handle_seekcur(Client &client, Request args, Response &r)
{
const char *p = args.front();
bool relative = *p == '+' || *p == '-';
SignedSongTime seek_time;
if (!ParseCommandArg(r, seek_time, p))
return CommandResult::ERROR;
PlaylistResult result =
client.partition.SeekCurrent(seek_time, relative);
return print_playlist_result(r, result);
}
CommandResult
handle_crossfade(Client &client, Request args, Response &r)
{
unsigned xfade_time;
if (!args.Parse(0, xfade_time, r))
return CommandResult::ERROR;
client.player_control.SetCrossFade(xfade_time);
return CommandResult::OK;
}
CommandResult
handle_mixrampdb(Client &client, Request args, Response &r)
{
float db;
if (!args.Parse(0, db, r))
return CommandResult::ERROR;
client.player_control.SetMixRampDb(db);
return CommandResult::OK;
}
CommandResult
handle_mixrampdelay(Client &client, Request args, Response &r)
{
float delay_secs;
if (!args.Parse(0, delay_secs, r))
return CommandResult::ERROR;
client.player_control.SetMixRampDelay(delay_secs);
return CommandResult::OK;
}
CommandResult
handle_replay_gain_mode(Client &client, Request args, Response &r)
{
if (!replay_gain_set_mode_string(args.front())) {
r.Error(ACK_ERROR_ARG, "Unrecognized replay gain mode");
return CommandResult::ERROR;
}
client.partition.outputs.SetReplayGainMode(replay_gain_get_real_mode(client.playlist.queue.random));
return CommandResult::OK;
}
CommandResult
handle_replay_gain_status(gcc_unused Client &client, gcc_unused Request args,
Response &r)
{
r.Format("replay_gain_mode: %s\n", replay_gain_get_mode_string());
return CommandResult::OK;
}