OniSplit/Sound/SoundData.cs

using System;
using System.Collections.Generic;
using System.Text;

namespace Oni.Sound
{
    internal class SoundData
    {
        public bool IsIMA4;
        public int SampleRate;
        public int ChannelCount;
        public byte[] Data;

        public static SoundData Read(InstanceDescriptor sndd)
        {
            if (sndd.Template.Tag != TemplateTag.SNDD)
                throw new ArgumentException("descriptor");

            var sound = new SoundData();

            int dataSize;
            int dataOffset;

            using (var reader = sndd.OpenRead())
            {
                if (sndd.IsMacFile)
                {
                    sound.ChannelCount = (reader.ReadInt32() >> 1) + 1;
                    sound.SampleRate = 22050;
                    reader.Skip(4);
                    sound.IsIMA4 = true;
                }
                else
                {
                    reader.Skip(6); // ADPCM format identifiers (change to support PCM?)
                    sound.ChannelCount = reader.ReadInt16();
                    sound.SampleRate = reader.ReadInt32();
                    reader.Skip(44);
                    sound.IsIMA4 = false;
                }

                dataSize = reader.ReadInt32();
                dataOffset = reader.ReadInt32();
            }

            using (var rawReader = sndd.GetRawReader(dataOffset))
                sound.Data = rawReader.ReadBytes(dataSize);

            return sound;
        }
    }
}
Revision:	1130
Committed:	Thu May 28 21:28:44 2020 UTC (5 years, 4 months ago) by geyser
File size:	1543 byte(s)
Log Message:	Minor fixes and features in SNDD export: "transcoding" forbidden, standard-compliant MSADPCM (with padding and "fact" section), PCM export (with -extract:pcm).
#	Content
1	using System;
2	using System.Collections.Generic;
3	using System.Text;
4
5	namespace Oni.Sound
6	{
7	internal class SoundData
8	{
9	public bool IsIMA4;
10	public int SampleRate;
11	public int ChannelCount;
12	public byte[] Data;
13
14	public static SoundData Read(InstanceDescriptor sndd)
15	{
16	if (sndd.Template.Tag != TemplateTag.SNDD)
17	throw new ArgumentException("descriptor");
18
19	var sound = new SoundData();
20
21	int dataSize;
22	int dataOffset;
23
24	using (var reader = sndd.OpenRead())
25	{
26	if (sndd.IsMacFile)
27	{
28	sound.ChannelCount = (reader.ReadInt32() >> 1) + 1;
29	sound.SampleRate = 22050;
30	reader.Skip(4);
31	sound.IsIMA4 = true;
32	}
33	else
34	{
35	reader.Skip(6); // ADPCM format identifiers (change to support PCM?)
36	sound.ChannelCount = reader.ReadInt16();
37	sound.SampleRate = reader.ReadInt32();
38	reader.Skip(44);
39	sound.IsIMA4 = false;
40	}
41
42	dataSize = reader.ReadInt32();
43	dataOffset = reader.ReadInt32();
44	}
45
46	using (var rawReader = sndd.GetRawReader(dataOffset))
47	sound.Data = rawReader.ReadBytes(dataSize);
48
49	return sound;
50	}
51	}
52	}