141 lines
4.9 KiB
C++
141 lines
4.9 KiB
C++
/*************************************************************************/
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/* audio_stream_mpc.h */
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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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#ifndef AUDIO_STREAM_MPC_H
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#define AUDIO_STREAM_MPC_H
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#include "io/resource_loader.h"
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#include "os/file_access.h"
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#include "os/thread_safe.h"
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#include "scene/resources/audio_stream.h"
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#include <mpc/mpcdec.h>
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class AudioStreamPlaybackMPC : public AudioStreamPlayback {
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OBJ_TYPE(AudioStreamPlaybackMPC, AudioStreamPlayback);
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bool preload;
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FileAccess *f;
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String file;
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DVector<uint8_t> data;
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int data_ofs;
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int streamlen;
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bool active;
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bool paused;
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bool loop;
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int loops;
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// mpc
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mpc_reader reader;
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mpc_demux *demux;
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mpc_streaminfo si;
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MPC_SAMPLE_FORMAT sample_buffer[MPC_DECODER_BUFFER_LENGTH];
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static mpc_int32_t _mpc_read(mpc_reader *p_reader, void *p_dst, mpc_int32_t p_bytes);
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static mpc_bool_t _mpc_seek(mpc_reader *p_reader, mpc_int32_t p_offset);
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static mpc_int32_t _mpc_tell(mpc_reader *p_reader);
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static mpc_int32_t _mpc_get_size(mpc_reader *p_reader);
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static mpc_bool_t _mpc_canseek(mpc_reader *p_reader);
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int stream_min_size;
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int stream_rate;
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int stream_channels;
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protected:
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Error _open_file();
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void _close_file();
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int _read_file(void *p_dst, int p_bytes);
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bool _seek_file(int p_pos);
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int _tell_file() const;
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int _sizeof_file() const;
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bool _canseek_file() const;
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Error _reload();
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static void _bind_methods();
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public:
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void set_file(const String &p_file);
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String get_file() const;
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virtual void play(float p_offset = 0);
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virtual void stop();
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virtual bool is_playing() const;
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virtual void set_loop(bool p_enable);
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virtual bool has_loop() const;
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virtual float get_length() const;
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virtual String get_stream_name() const;
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virtual int get_loop_count() const;
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virtual float get_pos() const;
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virtual void seek_pos(float p_time);
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virtual int get_channels() const { return stream_channels; }
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virtual int get_mix_rate() const { return stream_rate; }
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virtual int get_minimum_buffer_size() const { return stream_min_size; }
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virtual int mix(int16_t *p_bufer, int p_frames);
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virtual void set_loop_restart_time(float p_time) {}
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AudioStreamPlaybackMPC();
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~AudioStreamPlaybackMPC();
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};
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class AudioStreamMPC : public AudioStream {
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OBJ_TYPE(AudioStreamMPC, AudioStream);
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String file;
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public:
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Ref<AudioStreamPlayback> instance_playback() {
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Ref<AudioStreamPlaybackMPC> pb = memnew(AudioStreamPlaybackMPC);
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pb->set_file(file);
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return pb;
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}
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void set_file(const String &p_file) { file = p_file; }
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};
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class ResourceFormatLoaderAudioStreamMPC : public ResourceFormatLoader {
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public:
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virtual RES load(const String &p_path, const String &p_original_path = "", Error *r_error = NULL);
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virtual void get_recognized_extensions(List<String> *p_extensions) const;
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virtual bool handles_type(const String &p_type) const;
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virtual String get_resource_type(const String &p_path) const;
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};
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#endif // AUDIO_STREAM_MPC_H
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