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cleanup, optimizations

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This commit is contained in:
chudov
2009-08-17 20:16:56 +00:00
parent ea0afc6273
commit bc2aceebda
4 changed files with 394 additions and 250 deletions
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55
CUETools.Codecs.FLAKE/Flake.cs
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@@ -10,6 +10,15 @@ namespace CUETools.Codecs.FLAKE
public const int MAX_RICE_PARAM = 14;
public const int MAX_PARTITION_ORDER = 8;
public const int MAX_PARTITIONS = 1 << MAX_PARTITION_ORDER;
public static readonly int[] flac_samplerates = new int[16] {
0, 0, 0, 0,
8000, 16000, 22050, 24000, 32000, 44100, 48000, 96000,
0, 0, 0, 0
};
public static readonly int[] flac_blocksizes = new int[15] { 0, 192, 576, 1152, 2304, 4608, 0, 0, 256, 512, 1024, 2048, 4096, 8192, 16384 };
public static readonly int[] flac_bitdepths = new int[8] { 0, 8, 12, 0, 16, 20, 24, 0 };
public static int log2i(int v)
{
return log2i((uint)v);
@@ -97,17 +106,30 @@ namespace CUETools.Codecs.FLAKE
for (int i = n; i > 0; i--)
*(res++) = *(smp++);
}
unsafe public static void memcpy(byte* res, byte* smp, int n)
{
for (int i = n; i > 0; i--)
*(res++) = *(smp++);
}
unsafe public static void memset(int* res, int smp, int n)
{
for (int i = n; i > 0; i--)
*(res++) = smp;
}
unsafe public static void interlace(int* res, int* src1, int* src2, int n)
{
for (int i = n; i > 0; i--)
{
*(res++) = *(src1++);
*(res++) = *(src2++);
}
}
}
unsafe struct RiceContext
{
public int porder; /* partition order */
public fixed uint rparams[Flake.MAX_PARTITIONS]; /* Rice parameters */
public fixed int rparams[Flake.MAX_PARTITIONS]; /* Rice parameters */
public fixed int esc_bps[Flake.MAX_PARTITIONS]; /* bps if using escape code */
};
@@ -214,6 +236,13 @@ namespace CUETools.Codecs.FLAKE
Flattop = 8
}
public struct SeekPoint
{
public ulong number;
public ulong offset;
public uint framesize;
}
public enum MetadataType
{
@@ -227,22 +256,34 @@ namespace CUETools.Codecs.FLAKE
/// </summary>
FLAC__METADATA_TYPE_PADDING = 1,
/// <summary>
/// <A HREF="../format.html#metadata_block_application">APPLICATION</A> block
/// </summary>
FLAC__METADATA_TYPE_APPLICATION = 2,
/**< <A HREF="../format.html#metadata_block_application">APPLICATION</A> block */
/// <summary>
/// <A HREF="../format.html#metadata_block_seektable">SEEKTABLE</A> block
/// </summary>
FLAC__METADATA_TYPE_SEEKTABLE = 3,
/**< <A HREF="../format.html#metadata_block_seektable">SEEKTABLE</A> block */
/// <summary>
/// <A HREF="../format.html#metadata_block_vorbis_comment">VORBISCOMMENT</A> block (a.k.a. FLAC tags)
/// </summary>
FLAC__METADATA_TYPE_VORBIS_COMMENT = 4,
/**< <A HREF="../format.html#metadata_block_vorbis_comment">VORBISCOMMENT</A> block (a.k.a. FLAC tags) */
/// <summary>
/// <A HREF="../format.html#metadata_block_cuesheet">CUESHEET</A> block
/// </summary>
FLAC__METADATA_TYPE_CUESHEET = 5,
/**< <A HREF="../format.html#metadata_block_cuesheet">CUESHEET</A> block */
/// <summary>
/// <A HREF="../format.html#metadata_block_picture">PICTURE</A> block
/// </summary>
FLAC__METADATA_TYPE_PICTURE = 6,
/**< <A HREF="../format.html#metadata_block_picture">PICTURE</A> block */
/// <summary>
/// marker to denote beginning of undefined type range; this number will increase as new metadata types are added
/// </summary>
FLAC__METADATA_TYPE_UNDEFINED = 7
/**< marker to denote beginning of undefined type range; this number will increase as new metadata types are added */
};
}