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Fixed #1455 errors in JPEG - more SOI in the file

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Jindra Petřík
2022-11-05 20:13:53 +01:00
parent bd4fbe9248
commit 49f23c04b1
3 changed files with 37 additions and 32 deletions
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12
libsrc/ffdec_lib/src/com/jpexs/helpers/JpegFixer.java
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@@ -23,8 +23,10 @@ import java.io.OutputStream;
/**
* Fixes probles in some JPEGs to be readable by standard viewers.
*
* It removes EOI markers followed by SOI markers. It does it also on the
* beginning of the file.
* It removes:
* 1) EOI markers followed by SOI markers
* 2) EOI SOI on the beginning of the file
* 3) Second or more SOI markers in the file
*
* @author JPEXS
*/
@@ -34,8 +36,8 @@ public class JpegFixer {
public static final int EOI = 0xD9;
public void fixJpeg(InputStream is, OutputStream os) throws IOException {
boolean prevEoi = false;
boolean prevEoi = false;
int val = is.read();
if (val == -1) {
return;
@@ -119,6 +121,8 @@ public class JpegFixer {
if (val == SOI && prevEoi) {
//ignore, effectively removing EOI and SOI
} else if (val == SOI) {
//second or more SOI in the file, remove that too
} else if (prevEoi) {
os.write(0xFF);
os.write(EOI);