Fix typos

This commit is contained in:
ruffson committed 2020-09-26 14:14:09 +02:00
1 parent cb900819d9
commit 53aefea6a4
1 file changed
+7 -8
+7 -8
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@@ -324,19 +324,18 @@ impl EndianReader for LZWReader {
pub(crate) struct JpegReader {
buffer: io::Cursor<Vec<u8>>,
byte_order: ByteOrder, // for jpeg image data always ...,
byte_order: ByteOrder,
}
// Only tested with qtables in jpegtables, but it contain both qtables and huffman tables or either
impl JpegReader {
/// Constructs new JpegReader wrapping a SmartReader.
/// Because Jpeg compression in TIFF allows to save quantization and/or huffman tables in one
/// Because JPEG compression in TIFF allows to save quantization and/or huffman tables in one
/// central loacation, the constructor accepts this data as `jpeg_tables` here containing either
/// both.
/// or both.
/// These `jpeg_tables` are simply prepended to the remaining jpeg image data.
/// Because these jpegtables start with a `SOI` (HEX: `0xFFD8`) or __start of image__ marker
/// which is also at the beginning of the remaining jpeg image data and would
/// confuse the jpeg renderer, one of these has to be taken off. In this case the first two
/// bytes of the remaining jpeg data is removed because this follows `jpeg_tables`.
/// Because these `jpeg_tables` start with a `SOI` (HEX: `0xFFD8`) or __start of image__ marker
/// which is also at the beginning of the remaining JPEG image data and would
/// confuse the JPEG renderer, one of these has to be taken off. In this case the first two
/// bytes of the remaining JPEG data is removed because it follows `jpeg_tables`.
/// Similary, `jpeg_tables` ends with a `EOI` (HEX: `0xFFD9`) or __end of image__ marker,
/// this has to be removed as well (last two bytes of `jpeg_tables`).