1 /*
2  * Copyright 2003-2021 The Music Player Daemon Project
3  * http://www.musicpd.org
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
7  * the Free Software Foundation; either version 2 of the License, or
8  * (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License along
16  * with this program; if not, write to the Free Software Foundation, Inc.,
17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18  */
19 
20 #ifndef MPD_FLAC_PCM_HXX
21 #define MPD_FLAC_PCM_HXX
22 
23 #include "pcm/Buffer.hxx"
24 #include "pcm/AudioFormat.hxx"
25 
26 #include <FLAC/ordinals.h>
27 
28 template<typename T> struct ConstBuffer;
29 
30 /**
31  * This class imports libFLAC PCM data into a PCM format supported by
32  * MPD.
33  */
34 class FlacPcmImport {
35 	PcmBuffer buffer;
36 
37 	AudioFormat audio_format;
38 
39 public:
40 	/**
41 	 * Throws #std::runtime_error on error.
42 	 */
43 	void Open(unsigned sample_rate, unsigned bits_per_sample,
44 		  unsigned channels);
45 
GetAudioFormat() const46 	const AudioFormat &GetAudioFormat() const {
47 		return audio_format;
48 	}
49 
50 	ConstBuffer<void> Import(const FLAC__int32 *const src[],
51 				 size_t n_frames);
52 };
53 
54 #endif
55