431 lines
11 KiB
C++
431 lines
11 KiB
C++
/*************************************************************************/
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/* video_player.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* http://www.godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "video_player.h"
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#include "os/os.h"
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int VideoPlayer::InternalStream::get_channel_count() const {
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return player->sp_get_channel_count();
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}
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void VideoPlayer::InternalStream::set_mix_rate(int p_rate){
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return player->sp_set_mix_rate(p_rate);
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}
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bool VideoPlayer::InternalStream::mix(int32_t *p_buffer,int p_frames){
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return player->sp_mix(p_buffer,p_frames);
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}
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void VideoPlayer::InternalStream::update(){
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player->sp_update();
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}
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int VideoPlayer::sp_get_channel_count() const {
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return playback->get_channels();
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}
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void VideoPlayer::sp_set_mix_rate(int p_rate){
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server_mix_rate=p_rate;
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}
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bool VideoPlayer::sp_mix(int32_t *p_buffer,int p_frames) {
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if (resampler.is_ready()) {
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return resampler.mix(p_buffer,p_frames);
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}
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return false;
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}
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void VideoPlayer::sp_update() {
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#if 0
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_THREAD_SAFE_METHOD_
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//update is unused
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if (!paused && playback.is_valid()) {
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if (!playback->is_playing()) {
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//stream depleted data, but there's still audio in the ringbuffer
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//check that all this audio has been flushed before stopping the stream
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int to_mix = resampler.get_total() - resampler.get_todo();
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if (to_mix==0) {
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stop();
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return;
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}
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return;
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}
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int todo =resampler.get_todo();
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int wrote = playback->mix(resampler.get_write_buffer(),todo);
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resampler.write(wrote);
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}
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#endif
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}
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int VideoPlayer::_audio_mix_callback(void* p_udata,const int16_t *p_data,int p_frames) {
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VideoPlayer *vp=(VideoPlayer*)p_udata;
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int todo=MIN(vp->resampler.get_todo(),p_frames);
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int16_t *wb = vp->resampler.get_write_buffer();
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int c = vp->resampler.get_channel_count();
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for(int i=0;i<todo*c;i++) {
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wb[i]=p_data[i];
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}
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vp->resampler.write(todo);
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return todo;
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}
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void VideoPlayer::_notification(int p_notification) {
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switch (p_notification) {
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case NOTIFICATION_ENTER_TREE: {
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if (stream.is_valid() && autoplay && !get_tree()->is_editor_hint()) {
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play();
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}
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} break;
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case NOTIFICATION_PROCESS: {
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if (stream.is_null())
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return;
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if (paused)
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return;
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if (!playback->is_playing())
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return;
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double audio_time = USEC_TO_SEC(OS::get_singleton()->get_ticks_usec()); //AudioServer::get_singleton()->get_mix_time();
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double delta = last_audio_time==0?0:audio_time-last_audio_time;
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last_audio_time=audio_time;
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if (delta==0)
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return;
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playback->update(delta);
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} break;
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case NOTIFICATION_DRAW: {
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if (texture.is_null())
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return;
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if (texture->get_width() == 0)
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return;
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Size2 s=expand?get_size():texture->get_size();
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draw_texture_rect(texture,Rect2(Point2(),s),false);
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} break;
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};
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};
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Size2 VideoPlayer::get_minimum_size() const {
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if (!expand && !texture.is_null())
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return texture->get_size();
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else
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return Size2();
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}
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void VideoPlayer::set_expand(bool p_expand) {
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expand=p_expand;
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update();
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minimum_size_changed();
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}
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bool VideoPlayer::has_expand() const {
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return expand;
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}
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void VideoPlayer::set_stream(const Ref<VideoStream> &p_stream) {
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stop();
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stream=p_stream;
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if (stream.is_valid()) {
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stream->set_audio_track(audio_track);
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playback=stream->instance_playback();
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} else {
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playback=Ref<VideoStreamPlayback>();
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}
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if (!playback.is_null()) {
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playback->set_loop(loops);
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playback->set_paused(paused);
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texture=playback->get_texture();
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const int channels = playback->get_channels();
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AudioServer::get_singleton()->lock();
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if (channels > 0)
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resampler.setup(channels,playback->get_mix_rate(),server_mix_rate,buffering_ms,0);
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else
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resampler.clear();
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AudioServer::get_singleton()->unlock();
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if (channels > 0)
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playback->set_mix_callback(_audio_mix_callback,this);
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} else {
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texture.unref();
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AudioServer::get_singleton()->lock();
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resampler.clear();
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AudioServer::get_singleton()->unlock();
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}
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update();
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};
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Ref<VideoStream> VideoPlayer::get_stream() const {
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return stream;
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};
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void VideoPlayer::play() {
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ERR_FAIL_COND(!is_inside_tree());
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if (playback.is_null())
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return;
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playback->stop();
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playback->play();
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set_process(true);
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AudioServer::get_singleton()->stream_set_active(stream_rid,true);
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AudioServer::get_singleton()->stream_set_volume_scale(stream_rid,volume);
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last_audio_time=0;
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};
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void VideoPlayer::stop() {
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if (!is_inside_tree())
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return;
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if (playback.is_null())
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return;
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playback->stop();
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AudioServer::get_singleton()->stream_set_active(stream_rid,false);
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resampler.flush();
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set_process(false);
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last_audio_time=0;
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};
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bool VideoPlayer::is_playing() const {
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if (playback.is_null())
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return false;
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return playback->is_playing();
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};
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void VideoPlayer::set_paused(bool p_paused) {
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paused=p_paused;
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if (playback.is_valid()) {
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playback->set_paused(p_paused);
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set_process(!p_paused);
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};
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last_audio_time = 0;
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};
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bool VideoPlayer::is_paused() const {
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return paused;
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}
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void VideoPlayer::set_buffering_msec(int p_msec) {
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buffering_ms=p_msec;
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}
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int VideoPlayer::get_buffering_msec() const{
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return buffering_ms;
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}
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void VideoPlayer::set_audio_track(int p_track) {
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audio_track=p_track;
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}
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int VideoPlayer::get_audio_track() const {
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return audio_track;
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}
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void VideoPlayer::set_volume(float p_vol) {
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volume=p_vol;
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};
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float VideoPlayer::get_volume() const {
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return volume;
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};
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void VideoPlayer::set_volume_db(float p_db) {
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if (p_db<-79)
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set_volume(0);
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else
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set_volume(Math::db2linear(p_db));
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};
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float VideoPlayer::get_volume_db() const {
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if (volume==0)
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return -80;
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else
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return Math::linear2db(volume);
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};
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String VideoPlayer::get_stream_name() const {
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if (stream.is_null())
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return "<No Stream>";
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return stream->get_name();
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};
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float VideoPlayer::get_stream_pos() const {
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if (playback.is_null())
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return 0;
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return playback->get_pos();
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};
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Ref<Texture> VideoPlayer::get_video_texture() {
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if (playback.is_valid())
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return playback->get_texture();
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return Ref<Texture> ();
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}
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void VideoPlayer::set_autoplay(bool p_enable) {
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autoplay=p_enable;
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};
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bool VideoPlayer::has_autoplay() const {
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return autoplay;
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};
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void VideoPlayer::_bind_methods() {
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ClassDB::bind_method(_MD("set_stream","stream:VideoStream"),&VideoPlayer::set_stream);
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ClassDB::bind_method(_MD("get_stream:VideoStream"),&VideoPlayer::get_stream);
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ClassDB::bind_method(_MD("play"),&VideoPlayer::play);
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ClassDB::bind_method(_MD("stop"),&VideoPlayer::stop);
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ClassDB::bind_method(_MD("is_playing"),&VideoPlayer::is_playing);
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ClassDB::bind_method(_MD("set_paused","paused"),&VideoPlayer::set_paused);
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ClassDB::bind_method(_MD("is_paused"),&VideoPlayer::is_paused);
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ClassDB::bind_method(_MD("set_volume","volume"),&VideoPlayer::set_volume);
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ClassDB::bind_method(_MD("get_volume"),&VideoPlayer::get_volume);
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ClassDB::bind_method(_MD("set_volume_db","db"),&VideoPlayer::set_volume_db);
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ClassDB::bind_method(_MD("get_volume_db"),&VideoPlayer::get_volume_db);
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ClassDB::bind_method(_MD("set_audio_track","track"),&VideoPlayer::set_audio_track);
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ClassDB::bind_method(_MD("get_audio_track"),&VideoPlayer::get_audio_track);
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ClassDB::bind_method(_MD("get_stream_name"),&VideoPlayer::get_stream_name);
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ClassDB::bind_method(_MD("get_stream_pos"),&VideoPlayer::get_stream_pos);
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ClassDB::bind_method(_MD("set_autoplay","enabled"),&VideoPlayer::set_autoplay);
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ClassDB::bind_method(_MD("has_autoplay"),&VideoPlayer::has_autoplay);
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ClassDB::bind_method(_MD("set_expand","enable"), &VideoPlayer::set_expand );
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ClassDB::bind_method(_MD("has_expand"), &VideoPlayer::has_expand );
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ClassDB::bind_method(_MD("set_buffering_msec","msec"),&VideoPlayer::set_buffering_msec);
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ClassDB::bind_method(_MD("get_buffering_msec"),&VideoPlayer::get_buffering_msec);
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ClassDB::bind_method(_MD("get_video_texture:Texture"), &VideoPlayer::get_video_texture );
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ADD_PROPERTY( PropertyInfo(Variant::INT, "audio_track",PROPERTY_HINT_RANGE,"0,128,1"), _SCS("set_audio_track"), _SCS("get_audio_track") );
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ADD_PROPERTY( PropertyInfo(Variant::OBJECT, "stream", PROPERTY_HINT_RESOURCE_TYPE,"VideoStream"), _SCS("set_stream"), _SCS("get_stream") );
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// ADD_PROPERTY( PropertyInfo(Variant::BOOL, "stream/loop"), _SCS("set_loop"), _SCS("has_loop") );
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ADD_PROPERTY( PropertyInfo(Variant::REAL, "volume_db", PROPERTY_HINT_RANGE,"-80,24,0.01"), _SCS("set_volume_db"), _SCS("get_volume_db") );
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ADD_PROPERTY( PropertyInfo(Variant::BOOL, "autoplay"), _SCS("set_autoplay"), _SCS("has_autoplay") );
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ADD_PROPERTY( PropertyInfo(Variant::BOOL, "paused"), _SCS("set_paused"), _SCS("is_paused") );
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ADD_PROPERTY( PropertyInfo( Variant::BOOL, "expand" ), _SCS("set_expand"),_SCS("has_expand") );
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}
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VideoPlayer::VideoPlayer() {
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volume=1;
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loops = false;
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paused = false;
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autoplay = false;
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expand = true;
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loops = false;
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audio_track=0;
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buffering_ms=500;
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server_mix_rate=44100;
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internal_stream.player=this;
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stream_rid=AudioServer::get_singleton()->audio_stream_create(&internal_stream);
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last_audio_time=0;
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};
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VideoPlayer::~VideoPlayer() {
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if (stream_rid.is_valid())
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AudioServer::get_singleton()->free(stream_rid);
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resampler.clear(); //Not necessary here, but make in consistent with other "stream_player" classes
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};
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