Add API for jhead to use a JPEG buffer

Previously, jhead API only supports reading and saving a JPEG
from/to a file. This patch adds functionality to use the jhead
library with a JPEG buffer from memory.
Signed-off-by: Tyler Luu <tluu@ti.com>

Change-Id: I18be11c8255fcdcc38f49167853c5b9690448557
Signed-off-by: Iliyan Malchev <malchev@google.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/jhead.h b/jhead.h
index 59130cf..6a71745 100644
--- a/jhead.h
+++ b/jhead.h
@@ -237,6 +237,8 @@ int WriteJpegFile(const char * FileName);
 Section_t * FindSection(int SectionType);
 Section_t * CreateSection(int SectionType, unsigned char * Data, int size);
 void ResetJpgfile(void);
+int ReadJpegSectionsFromBuffer (unsigned char* buffer, unsigned int buffer_size, ReadMode_t ReadMode);
+int WriteJpegToBuffer(unsigned char* buffer, unsigned int buffer_size);
 
 // Variables from jhead.c used by exif.c
 extern ImageInfo_t ImageInfo;