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godot/scene/audio/stream_player.cpp
Rémi Verschelde d8223ffa75 Welcome in 2017, dear changelog reader! 
That year should bring the long-awaited OpenGL ES 3.0 compatible renderer
with state-of-the-art rendering techniques tuned to work as low as middle
end handheld devices - without compromising with the possibilities given
for higher end desktop games of course. Great times ahead for the Godot
community and the gamers that will play our games!

(cherry picked from commit c7bc44d5ad)
2017-01-12 19:15:30 +01:00

425 lines
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/*************************************************************************/
/* stream_player.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "stream_player.h"
int StreamPlayer::InternalStream::get_channel_count() const {
return player->sp_get_channel_count();
}
void StreamPlayer::InternalStream::set_mix_rate(int p_rate){
return player->sp_set_mix_rate(p_rate);
}
bool StreamPlayer::InternalStream::mix(int32_t *p_buffer,int p_frames){
return player->sp_mix(p_buffer,p_frames);
}
void StreamPlayer::InternalStream::update(){
player->sp_update();
}
int StreamPlayer::sp_get_channel_count() const {
return playback->get_channels();
}
void StreamPlayer::sp_set_mix_rate(int p_rate){
server_mix_rate=p_rate;
}
bool StreamPlayer::sp_mix(int32_t *p_buffer,int p_frames) {
if (resampler.is_ready() && !paused) {
return resampler.mix(p_buffer,p_frames);
}
return false;
}
void StreamPlayer::sp_update() {
//_THREAD_SAFE_METHOD_
if (!paused && resampler.is_ready() && playback.is_valid()) {
if (!playback->is_playing()) {
//stream depleted data, but there's still audio in the ringbuffer
//check that all this audio has been flushed before stopping the stream
int to_mix = resampler.get_total() - resampler.get_todo();
if (to_mix==0) {
if (!stop_request) {
stop_request=true;
call_deferred("_do_stop");
}
return;
}
return;
}
int todo =resampler.get_todo();
int wrote = playback->mix(resampler.get_write_buffer(),todo);
resampler.write(wrote);
}
}
void StreamPlayer::_do_stop() {
stop();
emit_signal("finished");
}
void StreamPlayer::_notification(int p_what) {
switch(p_what) {
case NOTIFICATION_ENTER_TREE: {
//set_idle_process(false); //don't annoy
if (stream.is_valid() && !get_tree()->is_editor_hint()) {
if (resume_pos>=0) {
play(resume_pos);
resume_pos=-1;
} else if (autoplay) {
play();
autoplay = false; //this line fix autoplay issues
}
}
} break;
case NOTIFICATION_EXIT_TREE: {
if (is_playing()) {
resume_pos=get_pos();
}
stop(); //wathever it may be doing, stop
} break;
}
}
void StreamPlayer::set_stream(const Ref<AudioStream> &p_stream) {
stop();
stream=p_stream;
if (!stream.is_null()) {
playback=stream->instance_playback();
playback->set_loop(loops);
playback->set_loop_restart_time(loop_point);
AudioServer::get_singleton()->lock();
resampler.setup(playback->get_channels(),playback->get_mix_rate(),server_mix_rate,buffering_ms,playback->get_minimum_buffer_size());
AudioServer::get_singleton()->unlock();
} else {
AudioServer::get_singleton()->lock();
resampler.clear();
playback.unref();
AudioServer::get_singleton()->unlock();
}
}
Ref<AudioStream> StreamPlayer::get_stream() const {
return stream;
}
void StreamPlayer::play(float p_from_offset) {
ERR_FAIL_COND(!is_inside_tree());
if (playback.is_null())
return;
//if (is_playing())
stop();
//_THREAD_SAFE_METHOD_
playback->play(p_from_offset);
//feed the ringbuffer as long as no update callback is going on
sp_update();
AudioServer::get_singleton()->stream_set_active(stream_rid,true);
AudioServer::get_singleton()->stream_set_volume_scale(stream_rid,volume);
// if (stream->get_update_mode()!=AudioStream::UPDATE_NONE)
// set_idle_process(true);
}
void StreamPlayer::stop() {
if (!is_inside_tree())
return;
if (playback.is_null())
return;
//_THREAD_SAFE_METHOD_
AudioServer::get_singleton()->stream_set_active(stream_rid,false);
stop_request=false;
playback->stop();
resampler.flush();
//set_idle_process(false);
}
bool StreamPlayer::is_playing() const {
if (playback.is_null())
return false;
return playback->is_playing() || resampler.has_data();
}
void StreamPlayer::set_loop(bool p_enable) {
loops=p_enable;
if (playback.is_null())
return;
playback->set_loop(loops);
}
bool StreamPlayer::has_loop() const {
return loops;
}
void StreamPlayer::set_volume(float p_vol) {
volume=p_vol;
if (stream_rid.is_valid())
AudioServer::get_singleton()->stream_set_volume_scale(stream_rid,volume);
}
float StreamPlayer::get_volume() const {
return volume;
}
void StreamPlayer::set_loop_restart_time(float p_secs) {
loop_point=p_secs;
if (playback.is_valid())
playback->set_loop_restart_time(p_secs);
}
float StreamPlayer::get_loop_restart_time() const {
return loop_point;
}
void StreamPlayer::set_volume_db(float p_db) {
if (p_db<-79)
set_volume(0);
else
set_volume(Math::db2linear(p_db));
}
float StreamPlayer::get_volume_db() const {
if (volume==0)
return -80;
else
return Math::linear2db(volume);
}
String StreamPlayer::get_stream_name() const {
if (stream.is_null())
return "<No Stream>";
return stream->get_name();
}
int StreamPlayer::get_loop_count() const {
if (playback.is_null())
return 0;
return playback->get_loop_count();
}
float StreamPlayer::get_pos() const {
if (playback.is_null())
return 0;
return playback->get_pos();
}
float StreamPlayer::get_length() const {
if (playback.is_null())
return 0;
return playback->get_length();
}
void StreamPlayer::seek_pos(float p_time) {
if (playback.is_null())
return;
//works better...
stop();
playback->play(p_time);
}
void StreamPlayer::set_autoplay(bool p_enable) {
autoplay=p_enable;
}
bool StreamPlayer::has_autoplay() const {
return autoplay;
}
void StreamPlayer::set_paused(bool p_paused) {
paused=p_paused;
//if (stream.is_valid())
// stream->set_paused(p_paused);
}
bool StreamPlayer::is_paused() const {
return paused;
}
void StreamPlayer::_set_play(bool p_play) {
_play=p_play;
if (is_inside_tree()) {
if(_play)
play();
else
stop();
}
}
bool StreamPlayer::_get_play() const{
return _play;
}
void StreamPlayer::set_buffering_msec(int p_msec) {
buffering_ms=p_msec;
}
int StreamPlayer::get_buffering_msec() const{
return buffering_ms;
}
void StreamPlayer::_bind_methods() {
ObjectTypeDB::bind_method(_MD("set_stream","stream:AudioStream"),&StreamPlayer::set_stream);
ObjectTypeDB::bind_method(_MD("get_stream:AudioStream"),&StreamPlayer::get_stream);
ObjectTypeDB::bind_method(_MD("play","offset"),&StreamPlayer::play,DEFVAL(0));
ObjectTypeDB::bind_method(_MD("stop"),&StreamPlayer::stop);
ObjectTypeDB::bind_method(_MD("is_playing"),&StreamPlayer::is_playing);
ObjectTypeDB::bind_method(_MD("set_paused","paused"),&StreamPlayer::set_paused);
ObjectTypeDB::bind_method(_MD("is_paused"),&StreamPlayer::is_paused);
ObjectTypeDB::bind_method(_MD("set_loop","enabled"),&StreamPlayer::set_loop);
ObjectTypeDB::bind_method(_MD("has_loop"),&StreamPlayer::has_loop);
ObjectTypeDB::bind_method(_MD("set_volume","volume"),&StreamPlayer::set_volume);
ObjectTypeDB::bind_method(_MD("get_volume"),&StreamPlayer::get_volume);
ObjectTypeDB::bind_method(_MD("set_volume_db","db"),&StreamPlayer::set_volume_db);
ObjectTypeDB::bind_method(_MD("get_volume_db"),&StreamPlayer::get_volume_db);
ObjectTypeDB::bind_method(_MD("set_buffering_msec","msec"),&StreamPlayer::set_buffering_msec);
ObjectTypeDB::bind_method(_MD("get_buffering_msec"),&StreamPlayer::get_buffering_msec);
ObjectTypeDB::bind_method(_MD("set_loop_restart_time","secs"),&StreamPlayer::set_loop_restart_time);
ObjectTypeDB::bind_method(_MD("get_loop_restart_time"),&StreamPlayer::get_loop_restart_time);
ObjectTypeDB::bind_method(_MD("get_stream_name"),&StreamPlayer::get_stream_name);
ObjectTypeDB::bind_method(_MD("get_loop_count"),&StreamPlayer::get_loop_count);
ObjectTypeDB::bind_method(_MD("get_pos"),&StreamPlayer::get_pos);
ObjectTypeDB::bind_method(_MD("seek_pos","time"),&StreamPlayer::seek_pos);
ObjectTypeDB::bind_method(_MD("set_autoplay","enabled"),&StreamPlayer::set_autoplay);
ObjectTypeDB::bind_method(_MD("has_autoplay"),&StreamPlayer::has_autoplay);
ObjectTypeDB::bind_method(_MD("get_length"),&StreamPlayer::get_length);
ObjectTypeDB::bind_method(_MD("_set_play","play"),&StreamPlayer::_set_play);
ObjectTypeDB::bind_method(_MD("_get_play"),&StreamPlayer::_get_play);
ObjectTypeDB::bind_method(_MD("_do_stop"),&StreamPlayer::_do_stop);
ADD_PROPERTY( PropertyInfo(Variant::OBJECT, "stream/stream", PROPERTY_HINT_RESOURCE_TYPE,"AudioStream"), _SCS("set_stream"), _SCS("get_stream") );
ADD_PROPERTY( PropertyInfo(Variant::BOOL, "stream/play"), _SCS("_set_play"), _SCS("_get_play") );
ADD_PROPERTY( PropertyInfo(Variant::BOOL, "stream/loop"), _SCS("set_loop"), _SCS("has_loop") );
ADD_PROPERTY( PropertyInfo(Variant::REAL, "stream/volume_db", PROPERTY_HINT_RANGE,"-80,24,0.01"), _SCS("set_volume_db"), _SCS("get_volume_db") );
ADD_PROPERTY( PropertyInfo(Variant::BOOL, "stream/autoplay"), _SCS("set_autoplay"), _SCS("has_autoplay") );
ADD_PROPERTY( PropertyInfo(Variant::BOOL, "stream/paused"), _SCS("set_paused"), _SCS("is_paused") );
ADD_PROPERTY( PropertyInfo(Variant::REAL, "stream/loop_restart_time"), _SCS("set_loop_restart_time"), _SCS("get_loop_restart_time") );
ADD_PROPERTY( PropertyInfo(Variant::INT, "stream/buffering_ms"), _SCS("set_buffering_msec"), _SCS("get_buffering_msec") );
ADD_SIGNAL(MethodInfo("finished"));
}
StreamPlayer::StreamPlayer() {
volume=1;
loops=false;
paused=false;
autoplay=false;
_play=false;
server_mix_rate=1;
internal_stream.player=this;
stream_rid=AudioServer::get_singleton()->audio_stream_create(&internal_stream);
buffering_ms=500;
loop_point=0;
stop_request=false;
resume_pos=-1;
}
StreamPlayer::~StreamPlayer() {
AudioServer::get_singleton()->free(stream_rid);
resampler.clear();
}
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