c2a8eb2081
It appears that some time ago users were supposed to be able to include the playback of sound effects in their animations by placing keys on the "playing" property. Back then the key frame editor took the value of the checkbox in the property_editor.
Somewhere / Sometime this behaviour changed and the key frame editor is now reading the actual value from the object instead of relying on the property editor.
This commit introduces a fake active field that is returned when reading the playing property in the editor. While the actual active flag is changed when playback is finished the fake one will stay the same thus allowing the user to take their time with setting the key in the animation editor.
(cherry picked from commit bc1522e268)
371 lines
11 KiB
C++
371 lines
11 KiB
C++
/*************************************************************************/
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/* audio_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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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md) */
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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 "audio_player.h"
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#include "engine.h"
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void AudioStreamPlayer::_mix_internal(bool p_fadeout) {
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int bus_index = AudioServer::get_singleton()->thread_find_bus_index(bus);
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//get data
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AudioFrame *buffer = mix_buffer.ptrw();
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int buffer_size = mix_buffer.size();
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if (p_fadeout) {
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buffer_size = MIN(buffer_size, 16); //short fadeout ramp
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}
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//mix
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stream_playback->mix(buffer, pitch_scale, buffer_size);
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//multiply volume interpolating to avoid clicks if this changes
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float target_volume = p_fadeout ? -80.0 : volume_db;
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float vol = Math::db2linear(mix_volume_db);
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float vol_inc = (Math::db2linear(target_volume) - vol) / float(buffer_size);
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for (int i = 0; i < buffer_size; i++) {
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buffer[i] *= vol;
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vol += vol_inc;
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}
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//set volume for next mix
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mix_volume_db = target_volume;
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AudioFrame *targets[4] = { NULL, NULL, NULL, NULL };
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if (AudioServer::get_singleton()->get_speaker_mode() == AudioServer::SPEAKER_MODE_STEREO) {
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targets[0] = AudioServer::get_singleton()->thread_get_channel_mix_buffer(bus_index, 0);
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} else {
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switch (mix_target) {
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case MIX_TARGET_STEREO: {
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targets[0] = AudioServer::get_singleton()->thread_get_channel_mix_buffer(bus_index, 0);
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} break;
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case MIX_TARGET_SURROUND: {
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for (int i = 0; i < AudioServer::get_singleton()->get_channel_count(); i++) {
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targets[i] = AudioServer::get_singleton()->thread_get_channel_mix_buffer(bus_index, i);
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}
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} break;
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case MIX_TARGET_CENTER: {
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targets[0] = AudioServer::get_singleton()->thread_get_channel_mix_buffer(bus_index, 1);
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} break;
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}
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}
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for (int c = 0; c < 4; c++) {
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if (!targets[c])
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break;
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for (int i = 0; i < buffer_size; i++) {
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targets[c][i] += buffer[i];
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}
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}
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}
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void AudioStreamPlayer::_mix_audio() {
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if (!stream_playback.is_valid()) {
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return;
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}
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if (!active) {
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return;
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}
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if (setseek >= 0.0) {
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if (stream_playback->is_playing()) {
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//fade out to avoid pops
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_mix_internal(true);
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}
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stream_playback->start(setseek);
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setseek = -1.0; //reset seek
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mix_volume_db = volume_db; //reset ramp
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}
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_mix_internal(false);
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}
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void AudioStreamPlayer::_notification(int p_what) {
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if (p_what == NOTIFICATION_ENTER_TREE) {
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AudioServer::get_singleton()->add_callback(_mix_audios, this);
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if (autoplay && !Engine::get_singleton()->is_editor_hint()) {
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play();
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}
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}
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if (p_what == NOTIFICATION_INTERNAL_PROCESS) {
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if (!active || (setseek < 0 && !stream_playback->is_playing())) {
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active = false;
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set_process_internal(false);
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//_change_notify("playing"); //update property in editor
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emit_signal("finished");
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}
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}
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if (p_what == NOTIFICATION_EXIT_TREE) {
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AudioServer::get_singleton()->remove_callback(_mix_audios, this);
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}
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}
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void AudioStreamPlayer::set_stream(Ref<AudioStream> p_stream) {
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AudioServer::get_singleton()->lock();
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mix_buffer.resize(AudioServer::get_singleton()->thread_get_mix_buffer_size());
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if (stream_playback.is_valid()) {
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stream_playback.unref();
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stream.unref();
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active = false;
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setseek = -1;
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}
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if (p_stream.is_valid()) {
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stream = p_stream;
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stream_playback = p_stream->instance_playback();
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}
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AudioServer::get_singleton()->unlock();
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if (p_stream.is_valid() && stream_playback.is_null()) {
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stream.unref();
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ERR_FAIL_COND(stream_playback.is_null());
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}
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}
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Ref<AudioStream> AudioStreamPlayer::get_stream() const {
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return stream;
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}
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void AudioStreamPlayer::set_volume_db(float p_volume) {
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volume_db = p_volume;
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}
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float AudioStreamPlayer::get_volume_db() const {
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return volume_db;
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}
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void AudioStreamPlayer::set_pitch_scale(float p_pitch_scale) {
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pitch_scale = p_pitch_scale;
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}
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float AudioStreamPlayer::get_pitch_scale() const {
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return pitch_scale;
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}
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void AudioStreamPlayer::play(float p_from_pos) {
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if (stream_playback.is_valid()) {
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//mix_volume_db = volume_db; do not reset volume ramp here, can cause clicks
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setseek = p_from_pos;
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active = true;
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set_process_internal(true);
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}
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}
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void AudioStreamPlayer::seek(float p_seconds) {
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if (stream_playback.is_valid()) {
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setseek = p_seconds;
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}
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}
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void AudioStreamPlayer::stop() {
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if (stream_playback.is_valid()) {
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active = false;
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set_process_internal(false);
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}
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}
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bool AudioStreamPlayer::is_playing() const {
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#ifdef TOOLS_ENABLED
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if (Engine::get_singleton()->is_editor_hint())
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return fake_active;
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#endif
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if (stream_playback.is_valid()) {
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return active; // && stream_playback->is_playing();
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}
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return false;
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}
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float AudioStreamPlayer::get_playback_position() {
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if (stream_playback.is_valid()) {
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return stream_playback->get_playback_position();
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}
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return 0;
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}
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void AudioStreamPlayer::set_bus(const StringName &p_bus) {
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//if audio is active, must lock this
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AudioServer::get_singleton()->lock();
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bus = p_bus;
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AudioServer::get_singleton()->unlock();
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}
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StringName AudioStreamPlayer::get_bus() const {
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for (int i = 0; i < AudioServer::get_singleton()->get_bus_count(); i++) {
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if (AudioServer::get_singleton()->get_bus_name(i) == bus) {
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return bus;
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}
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}
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return "Master";
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}
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void AudioStreamPlayer::set_autoplay(bool p_enable) {
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autoplay = p_enable;
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}
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bool AudioStreamPlayer::is_autoplay_enabled() {
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return autoplay;
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}
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void AudioStreamPlayer::set_mix_target(MixTarget p_target) {
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mix_target = p_target;
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}
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AudioStreamPlayer::MixTarget AudioStreamPlayer::get_mix_target() const {
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return mix_target;
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}
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void AudioStreamPlayer::_set_playing(bool p_enable) {
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#ifdef TOOLS_ENABLED
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fake_active = p_enable;
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#endif
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if (p_enable)
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play();
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else
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stop();
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}
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bool AudioStreamPlayer::_is_active() const {
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return active;
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}
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void AudioStreamPlayer::_validate_property(PropertyInfo &property) const {
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if (property.name == "bus") {
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String options;
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for (int i = 0; i < AudioServer::get_singleton()->get_bus_count(); i++) {
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if (i > 0)
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options += ",";
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String name = AudioServer::get_singleton()->get_bus_name(i);
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options += name;
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}
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property.hint_string = options;
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}
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}
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void AudioStreamPlayer::_bus_layout_changed() {
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_change_notify();
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}
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void AudioStreamPlayer::_bind_methods() {
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ClassDB::bind_method(D_METHOD("set_stream", "stream"), &AudioStreamPlayer::set_stream);
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ClassDB::bind_method(D_METHOD("get_stream"), &AudioStreamPlayer::get_stream);
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ClassDB::bind_method(D_METHOD("set_volume_db", "volume_db"), &AudioStreamPlayer::set_volume_db);
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ClassDB::bind_method(D_METHOD("get_volume_db"), &AudioStreamPlayer::get_volume_db);
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ClassDB::bind_method(D_METHOD("set_pitch_scale", "pitch_scale"), &AudioStreamPlayer::set_pitch_scale);
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ClassDB::bind_method(D_METHOD("get_pitch_scale"), &AudioStreamPlayer::get_pitch_scale);
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ClassDB::bind_method(D_METHOD("play", "from_position"), &AudioStreamPlayer::play, DEFVAL(0.0));
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ClassDB::bind_method(D_METHOD("seek", "to_position"), &AudioStreamPlayer::seek);
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ClassDB::bind_method(D_METHOD("stop"), &AudioStreamPlayer::stop);
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ClassDB::bind_method(D_METHOD("is_playing"), &AudioStreamPlayer::is_playing);
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ClassDB::bind_method(D_METHOD("get_playback_position"), &AudioStreamPlayer::get_playback_position);
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ClassDB::bind_method(D_METHOD("set_bus", "bus"), &AudioStreamPlayer::set_bus);
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ClassDB::bind_method(D_METHOD("get_bus"), &AudioStreamPlayer::get_bus);
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ClassDB::bind_method(D_METHOD("set_autoplay", "enable"), &AudioStreamPlayer::set_autoplay);
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ClassDB::bind_method(D_METHOD("is_autoplay_enabled"), &AudioStreamPlayer::is_autoplay_enabled);
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ClassDB::bind_method(D_METHOD("set_mix_target", "mix_target"), &AudioStreamPlayer::set_mix_target);
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ClassDB::bind_method(D_METHOD("get_mix_target"), &AudioStreamPlayer::get_mix_target);
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ClassDB::bind_method(D_METHOD("_set_playing", "enable"), &AudioStreamPlayer::_set_playing);
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ClassDB::bind_method(D_METHOD("_is_active"), &AudioStreamPlayer::_is_active);
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ClassDB::bind_method(D_METHOD("_bus_layout_changed"), &AudioStreamPlayer::_bus_layout_changed);
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ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "stream", PROPERTY_HINT_RESOURCE_TYPE, "AudioStream"), "set_stream", "get_stream");
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ADD_PROPERTY(PropertyInfo(Variant::REAL, "volume_db", PROPERTY_HINT_RANGE, "-80,24"), "set_volume_db", "get_volume_db");
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ADD_PROPERTY(PropertyInfo(Variant::REAL, "pitch_scale", PROPERTY_HINT_RANGE, "0.01,32,0.01"), "set_pitch_scale", "get_pitch_scale");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "playing", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_EDITOR), "_set_playing", "is_playing");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "autoplay"), "set_autoplay", "is_autoplay_enabled");
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ADD_PROPERTY(PropertyInfo(Variant::INT, "mix_target", PROPERTY_HINT_ENUM, "Stereo,Surround,Center"), "set_mix_target", "get_mix_target");
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ADD_PROPERTY(PropertyInfo(Variant::STRING, "bus", PROPERTY_HINT_ENUM, ""), "set_bus", "get_bus");
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ADD_SIGNAL(MethodInfo("finished"));
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BIND_ENUM_CONSTANT(MIX_TARGET_STEREO);
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BIND_ENUM_CONSTANT(MIX_TARGET_SURROUND);
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BIND_ENUM_CONSTANT(MIX_TARGET_CENTER);
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}
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AudioStreamPlayer::AudioStreamPlayer() {
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mix_volume_db = 0;
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pitch_scale = 1.0;
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volume_db = 0;
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autoplay = false;
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setseek = -1;
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active = false;
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mix_target = MIX_TARGET_STEREO;
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AudioServer::get_singleton()->connect("bus_layout_changed", this, "_bus_layout_changed");
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}
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AudioStreamPlayer::~AudioStreamPlayer() {
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}
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