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1/*
2This file is part of Darling.
3
4Copyright (C) 2020 Lubos Dolezel
5
6Darling is free software: you can redistribute it and/or modify
7it under the terms of the GNU General Public License as published by
8the Free Software Foundation, either version 3 of the License, or
9(at your option) any later version.
10
11Darling is distributed in the hope that it will be useful,
12but WITHOUT ANY WARRANTY; without even the implied warranty of
13MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14GNU General Public License for more details.
15
16You should have received a copy of the GNU General Public License
17along with Darling. If not, see <http://www.gnu.org/licenses/>.
18*/
19#include "AVFormatFileObject.h"
20#include <sstream>
21#include "AudioFileFormatMP3.h"
22
23extern "C" {
24#include <libavformat/avformat.h>
25}
26
27#pragma GCC visibility push(default)
28AUDIOCOMPONENT_ENTRY(AudioFileComponentFactory, AVFormatFileObject);
29#pragma GCC visibility pop
30
31AVFormatFileObject::AVFormatFileObject(AudioComponentInstance inInstance)
32: AudioFileObjectComponentBase(inInstance)
33{
34
35}
36
37// Analyze mAudioFileObject and return an AudioFileFormat based on that
38AudioFileFormat* AVFormatFileObject::GetAudioFormat() const
39{
40 uint8_t buffer[1024 + AVPROBE_PADDING_SIZE];
41 AVProbeData probeData;
42
43 probeData.filename = "";
44 probeData.buf = buffer;
45 probeData.buf_size = 1024;
46
47 if (mAudioFileObject->ReadBytes(false, 0, (UInt32*)&probeData.buf_size, probeData.buf) != noErr)
48 return nullptr;
49
50 AVInputFormat* fmt = av_probe_input_format(&probeData, true);
51 if (!fmt)
52 return nullptr;
53
54 std::istringstream ss(fmt->name);
55 std::string formatName;
56
57 while (std::getline(ss, formatName, ','))
58 {
59 if (formatName == "aac") // Raw AAC
60 {
61
62 }
63 else if (formatName == "ac3")
64 {
65
66 }
67 else if (formatName == "aiff")
68 {
69
70 }
71 else if (formatName == "caff")
72 {
73
74 }
75 else if (formatName == "mp3")
76 {
77 return AudioFileFormatMP3::instance();
78 }
79 else if (formatName == "mov" || formatName == "mp4")
80 {
81
82 }
83 else if (formatName == "au")
84 {
85
86 }
87 else if (formatName == "wav")
88 {
89
90 }
91 }
92
93 return nullptr;
94}