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godot/scene/gui/video_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

432 lines
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/*************************************************************************/
/* video_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 "video_player.h"
#include "os/os.h"
int VideoPlayer::InternalStream::get_channel_count() const {
return player->sp_get_channel_count();
}
void VideoPlayer::InternalStream::set_mix_rate(int p_rate){
return player->sp_set_mix_rate(p_rate);
}
bool VideoPlayer::InternalStream::mix(int32_t *p_buffer,int p_frames){
return player->sp_mix(p_buffer,p_frames);
}
void VideoPlayer::InternalStream::update(){
player->sp_update();
}
int VideoPlayer::sp_get_channel_count() const {
return playback->get_channels();
}
void VideoPlayer::sp_set_mix_rate(int p_rate){
server_mix_rate=p_rate;
}
bool VideoPlayer::sp_mix(int32_t *p_buffer,int p_frames) {
if (resampler.is_ready()) {
return resampler.mix(p_buffer,p_frames);
}
return false;
}
void VideoPlayer::sp_update() {
#if 0
_THREAD_SAFE_METHOD_
//update is unused
if (!paused && 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) {
stop();
return;
}
return;
}
int todo =resampler.get_todo();
int wrote = playback->mix(resampler.get_write_buffer(),todo);
resampler.write(wrote);
}
#endif
}
int VideoPlayer::_audio_mix_callback(void* p_udata,const int16_t *p_data,int p_frames) {
VideoPlayer *vp=(VideoPlayer*)p_udata;
int todo=MIN(vp->resampler.get_todo(),p_frames);
int16_t *wb = vp->resampler.get_write_buffer();
int c = vp->resampler.get_channel_count();
for(int i=0;i<todo*c;i++) {
wb[i]=p_data[i];
}
vp->resampler.write(todo);
return todo;
}
void VideoPlayer::_notification(int p_notification) {
switch (p_notification) {
case NOTIFICATION_ENTER_TREE: {
if (stream.is_valid() && autoplay && !get_tree()->is_editor_hint()) {
play();
}
} break;
case NOTIFICATION_PROCESS: {
if (stream.is_null())
return;
if (paused)
return;
if (!playback->is_playing())
return;
double audio_time = USEC_TO_SEC(OS::get_singleton()->get_ticks_usec()); //AudioServer::get_singleton()->get_mix_time();
double delta = last_audio_time==0?0:audio_time-last_audio_time;
last_audio_time=audio_time;
if (delta==0)
return;
playback->update(delta);
} break;
case NOTIFICATION_DRAW: {
if (texture.is_null())
return;
if (texture->get_width() == 0)
return;
Size2 s=expand?get_size():texture->get_size();
draw_texture_rect(texture,Rect2(Point2(),s),false);
} break;
};
};
Size2 VideoPlayer::get_minimum_size() const {
if (!expand && !texture.is_null())
return texture->get_size();
else
return Size2();
}
void VideoPlayer::set_expand(bool p_expand) {
expand=p_expand;
update();
minimum_size_changed();
}
bool VideoPlayer::has_expand() const {
return expand;
}
void VideoPlayer::set_stream(const Ref<VideoStream> &p_stream) {
stop();
stream=p_stream;
if (stream.is_valid()) {
stream->set_audio_track(audio_track);
playback=stream->instance_playback();
} else {
playback=Ref<VideoStreamPlayback>();
}
if (!playback.is_null()) {
playback->set_loop(loops);
playback->set_paused(paused);
texture=playback->get_texture();
const int channels = playback->get_channels();
AudioServer::get_singleton()->lock();
if (channels > 0)
resampler.setup(channels,playback->get_mix_rate(),server_mix_rate,buffering_ms,0);
else
resampler.clear();
AudioServer::get_singleton()->unlock();
if (channels > 0)
playback->set_mix_callback(_audio_mix_callback,this);
} else {
texture.unref();
AudioServer::get_singleton()->lock();
resampler.clear();
AudioServer::get_singleton()->unlock();
}
update();
};
Ref<VideoStream> VideoPlayer::get_stream() const {
return stream;
};
void VideoPlayer::play() {
ERR_FAIL_COND(!is_inside_tree());
if (playback.is_null())
return;
playback->stop();
playback->play();
set_process(true);
AudioServer::get_singleton()->stream_set_active(stream_rid,true);
AudioServer::get_singleton()->stream_set_volume_scale(stream_rid,volume);
last_audio_time=0;
};
void VideoPlayer::stop() {
if (!is_inside_tree())
return;
if (playback.is_null())
return;
playback->stop();
AudioServer::get_singleton()->stream_set_active(stream_rid,false);
resampler.flush();
set_process(false);
last_audio_time=0;
};
bool VideoPlayer::is_playing() const {
if (playback.is_null())
return false;
return playback->is_playing();
};
void VideoPlayer::set_paused(bool p_paused) {
paused=p_paused;
if (playback.is_valid()) {
playback->set_paused(p_paused);
set_process(!p_paused);
};
last_audio_time = 0;
};
bool VideoPlayer::is_paused() const {
return paused;
}
void VideoPlayer::set_buffering_msec(int p_msec) {
buffering_ms=p_msec;
}
int VideoPlayer::get_buffering_msec() const{
return buffering_ms;
}
void VideoPlayer::set_audio_track(int p_track) {
audio_track=p_track;
}
int VideoPlayer::get_audio_track() const {
return audio_track;
}
void VideoPlayer::set_volume(float p_vol) {
volume=p_vol;
};
float VideoPlayer::get_volume() const {
return volume;
};
void VideoPlayer::set_volume_db(float p_db) {
if (p_db<-79)
set_volume(0);
else
set_volume(Math::db2linear(p_db));
};
float VideoPlayer::get_volume_db() const {
if (volume==0)
return -80;
else
return Math::linear2db(volume);
};
String VideoPlayer::get_stream_name() const {
if (stream.is_null())
return "<No Stream>";
return stream->get_name();
};
float VideoPlayer::get_stream_pos() const {
if (playback.is_null())
return 0;
return playback->get_pos();
};
Ref<Texture> VideoPlayer::get_video_texture() {
if (playback.is_valid())
return playback->get_texture();
return Ref<Texture> ();
}
void VideoPlayer::set_autoplay(bool p_enable) {
autoplay=p_enable;
};
bool VideoPlayer::has_autoplay() const {
return autoplay;
};
void VideoPlayer::_bind_methods() {
ObjectTypeDB::bind_method(_MD("set_stream","stream:VideoStream"),&VideoPlayer::set_stream);
ObjectTypeDB::bind_method(_MD("get_stream:VideoStream"),&VideoPlayer::get_stream);
ObjectTypeDB::bind_method(_MD("play"),&VideoPlayer::play);
ObjectTypeDB::bind_method(_MD("stop"),&VideoPlayer::stop);
ObjectTypeDB::bind_method(_MD("is_playing"),&VideoPlayer::is_playing);
ObjectTypeDB::bind_method(_MD("set_paused","paused"),&VideoPlayer::set_paused);
ObjectTypeDB::bind_method(_MD("is_paused"),&VideoPlayer::is_paused);
ObjectTypeDB::bind_method(_MD("set_volume","volume"),&VideoPlayer::set_volume);
ObjectTypeDB::bind_method(_MD("get_volume"),&VideoPlayer::get_volume);
ObjectTypeDB::bind_method(_MD("set_volume_db","db"),&VideoPlayer::set_volume_db);
ObjectTypeDB::bind_method(_MD("get_volume_db"),&VideoPlayer::get_volume_db);
ObjectTypeDB::bind_method(_MD("set_audio_track","track"),&VideoPlayer::set_audio_track);
ObjectTypeDB::bind_method(_MD("get_audio_track"),&VideoPlayer::get_audio_track);
ObjectTypeDB::bind_method(_MD("get_stream_name"),&VideoPlayer::get_stream_name);
ObjectTypeDB::bind_method(_MD("get_stream_pos"),&VideoPlayer::get_stream_pos);
ObjectTypeDB::bind_method(_MD("set_autoplay","enabled"),&VideoPlayer::set_autoplay);
ObjectTypeDB::bind_method(_MD("has_autoplay"),&VideoPlayer::has_autoplay);
ObjectTypeDB::bind_method(_MD("set_expand","enable"), &VideoPlayer::set_expand );
ObjectTypeDB::bind_method(_MD("has_expand"), &VideoPlayer::has_expand );
ObjectTypeDB::bind_method(_MD("set_buffering_msec","msec"),&VideoPlayer::set_buffering_msec);
ObjectTypeDB::bind_method(_MD("get_buffering_msec"),&VideoPlayer::get_buffering_msec);
ObjectTypeDB::bind_method(_MD("get_video_texture:Texture"), &VideoPlayer::get_video_texture );
ADD_PROPERTY( PropertyInfo(Variant::INT, "stream/audio_track",PROPERTY_HINT_RANGE,"0,128,1"), _SCS("set_audio_track"), _SCS("get_audio_track") );
ADD_PROPERTY( PropertyInfo(Variant::OBJECT, "stream/stream", PROPERTY_HINT_RESOURCE_TYPE,"VideoStream"), _SCS("set_stream"), _SCS("get_stream") );
// 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::BOOL, "expand" ), _SCS("set_expand"),_SCS("has_expand") );
}
VideoPlayer::VideoPlayer() {
volume=1;
loops = false;
paused = false;
autoplay = false;
expand = true;
loops = false;
audio_track=0;
buffering_ms=500;
server_mix_rate=44100;
internal_stream.player=this;
stream_rid=AudioServer::get_singleton()->audio_stream_create(&internal_stream);
last_audio_time=0;
};
VideoPlayer::~VideoPlayer() {
if (stream_rid.is_valid())
AudioServer::get_singleton()->free(stream_rid);
resampler.clear(); //Not necessary here, but make in consistent with other "stream_player" classes
};
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