1036a76bc5
if the audio player is set to play again due to the order of calls in
_notification. First it emits the signal, and later it disable the internal
processing regardless what the callback did.
Changed to emit the signal at the end to ensure the changes done at callback
remains.
(cherry picked from commit d588fe2740)
348 lines
10 KiB
C++
348 lines
10 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, 1.0, 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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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::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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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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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("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::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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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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