avcodec/jpeg2000dwt: assert that mod == 0 for encoding

[ffmpeg] / libavcodec / jpeg2000.h

diff --git a/libavcodec/jpeg2000.h b/libavcodec/jpeg2000.h
index 6ff0e9092380456faad25fe235231b3df36f164a..1054fe6333b917bba0325ec363325476094f0221 100644 (file)
--- a/libavcodec/jpeg2000.h
+++ b/libavcodec/jpeg2000.h
@@ -58,6 +58,9 @@ enum Jpeg2000Markers {
     JPEG2000_EOC = 0xffd9, // end of codestream
 };
 
+#define JPEG2000_SOP_FIXED_BYTES 0xFF910004
+#define JPEG2000_SOP_BYTE_LENGTH 6
+
 enum Jpeg2000Quantsty { // quantization style
     JPEG2000_QSTY_NONE, // no quantization
     JPEG2000_QSTY_SI,   // scalar derived