blob: dd1bfcd110283c45d095b235c3c43bc65e75a478 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
|
// Copyright (c) the JPEG XL Project Authors. All rights reserved.
//
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
#ifndef LIB_JPEGLI_DECODE_SCAN_H_
#define LIB_JPEGLI_DECODE_SCAN_H_
#include <stdint.h>
#include "lib/jpegli/common.h"
namespace jpegli {
// Reads the available input in the source manager's input buffer until the end
// of the next iMCU row.
// The corresponding fields of cinfo are updated with the processed input data.
// Upon return, the input buffer will be at the start of an MCU, or at the end
// of the scan.
// Return value is one of:
// * JPEG_SUSPENDED, if the input buffer ends before the end of an iMCU row;
// * JPEG_ROW_COMPLETED, if the next iMCU row (but not the scan) is reached;
// * JPEG_SCAN_COMPLETED, if the end of the scan is reached.
int ProcessScan(j_decompress_ptr cinfo, const uint8_t* data, size_t len,
size_t* pos, size_t* bit_pos);
void PrepareForiMCURow(j_decompress_ptr cinfo);
} // namespace jpegli
#endif // LIB_JPEGLI_DECODE_SCAN_H_
|
