public static extern void openjpeg_openjp2_opj_cparameters_t_set_prog_order(IntPtr parameters, ProgressionOrder value);
public CodMarker(
bool usePrecincts,
bool useEph,
bool useSop,
Size codeblockSize,
Size[] precinctSizes,
ProgressionOrder progression,
ushort qualityLayers,
bool useMultiComponentTransform,
WaveletTransform waveletFilter,
byte decompositionLevels,
CodeblockStyle cblkStyle)
: base(MarkerType.COD)
{
_scod = CodingStyle.None;
_scod |=
usePrecincts ? CodingStyle.UsePrecincts : CodingStyle.None;
_scod |=
useSop ? CodingStyle.UseSopMarker : CodingStyle.None;
_scod |=
useEph ? CodingStyle.UseEphMarker: CodingStyle.None;
Progression = progression;
QualityLayers = qualityLayers;
DecompositionLevels = decompositionLevels;
UseMultipleComponentTransform = useMultiComponentTransform;
CBlkStyle = cblkStyle;
WaveletFilter = waveletFilter;
// width > max || height > max
if ((new List <int> {
codeblockSize.Width,
codeblockSize.Height,
MAX_CBLK_SIZE
}).Max() != MAX_CBLK_SIZE)
{
throw new ArgumentOutOfRangeException(
"Codeblock dimensions must be up to "
+ MAX_CBLK_SIZE + " samples on each side");
}
bool isCodeblockPow2 =
BitHacks.IsPowerOf2((uint)codeblockSize.Width) &&
BitHacks.IsPowerOf2((uint)codeblockSize.Height);
if (!isCodeblockPow2)
{
throw new ArgumentException(
"Codeblock size must be power of 2");
}
// codeblock size range is [4,64], and is a power of 2.
// to save space and fill it inside a byte,
// codestream specifies them using the 2-exponent in the range
// [0, 16]. The additional 2 is implicit.
_cblkExpnX = (byte)(BitHacks.LogFloor2((uint)codeblockSize.Width));
_cblkExpnX -= 2;
_cblkExpnY = (byte)(BitHacks.LogFloor2((uint)codeblockSize.Height));
_cblkExpnY -= 2;
if (UsePrecincts)
{
bool valid = precinctSizes.Any();
valid &= precinctSizes.Length <= (decompositionLevels + 1);
valid &= precinctSizes
.All(prc => BitHacks.IsPowerOf2((uint)prc.Width));
valid &= precinctSizes
.All(prc => BitHacks.IsPowerOf2((uint)prc.Height));
if (!valid)
{
throw new ArgumentException(
"precincts unspecified or not power of two");
}
_ppx = new byte[decompositionLevels + 1];
_ppx = new byte[decompositionLevels + 1];
int idx = 0;
foreach (var prc in precinctSizes)
{
_ppx[idx] = (byte)BitHacks.LogFloor2((uint)prc.Width);
_ppy[idx] = (byte)BitHacks.LogFloor2((uint)prc.Height);
idx++;
}
for (; idx <= decompositionLevels; idx++)
{
// there is at least one element in ppx/ppy
// because we checked that precSizes.Any()
_ppx[idx] = _ppx[idx - 1];
_ppy[idx] = _ppy[idx - 1];
}
}
else
{
// maximal precincts: size 2^15
_ppx = new byte[] { 0xF };
_ppy = new byte[] { 0xF };
}
_markerBody = GenerateMarkerBody();
_markerLength = (ushort)(_markerBody.Length + 2);
}
