diff options
Diffstat (limited to 'turbojpeg.c')
| -rw-r--r-- | turbojpeg.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/turbojpeg.c b/turbojpeg.c index c875fd9..4576a87 100644 --- a/turbojpeg.c +++ b/turbojpeg.c @@ -145,7 +145,7 @@ static int getPixelFormat(int pixelSize, int flags) } static int setCompDefaults(struct jpeg_compress_struct *cinfo, - int pixelFormat, int subsamp, int jpegQual) + int pixelFormat, int subsamp, int jpegQual, int flags) { int retval=0; @@ -191,7 +191,7 @@ static int setCompDefaults(struct jpeg_compress_struct *cinfo, if(jpegQual>=0) { jpeg_set_quality(cinfo, jpegQual, TRUE); - if(jpegQual>=96) cinfo->dct_method=JDCT_ISLOW; + if(jpegQual>=96 || flags&TJFLAG_ACCURATEDCT) cinfo->dct_method=JDCT_ISLOW; else cinfo->dct_method=JDCT_FASTEST; } if(subsamp==TJSAMP_GRAY) @@ -210,7 +210,7 @@ static int setCompDefaults(struct jpeg_compress_struct *cinfo, } static int setDecompDefaults(struct jpeg_decompress_struct *dinfo, - int pixelFormat) + int pixelFormat, int flags) { int retval=0; @@ -258,6 +258,8 @@ static int setDecompDefaults(struct jpeg_decompress_struct *dinfo, _throw("Unsupported pixel format"); } + if(flags&TJFLAG_FASTDCT) dinfo->dct_method=JDCT_FASTEST; + bailout: return retval; } @@ -618,7 +620,7 @@ DLLEXPORT int DLLCALL tjCompress2(tjhandle handle, unsigned char *srcBuf, alloc=0; *jpegSize=tjBufSize(width, height, jpegSubsamp); } jpeg_mem_dest_tj(cinfo, jpegBuf, jpegSize, alloc); - if(setCompDefaults(cinfo, pixelFormat, jpegSubsamp, jpegQual)==-1) + if(setCompDefaults(cinfo, pixelFormat, jpegSubsamp, jpegQual, flags)==-1) return -1; jpeg_start_compress(cinfo, TRUE); @@ -726,7 +728,7 @@ DLLEXPORT int DLLCALL tjEncodeYUV2(tjhandle handle, unsigned char *srcBuf, yuvsize=tjBufSizeYUV(width, height, subsamp); jpeg_mem_dest_tj(cinfo, &dstBuf, &yuvsize, 0); - if(setCompDefaults(cinfo, pixelFormat, subsamp, -1)==-1) return -1; + if(setCompDefaults(cinfo, pixelFormat, subsamp, -1, flags)==-1) return -1; jpeg_start_compress(cinfo, TRUE); pw=PAD(width, cinfo->max_h_samp_factor); @@ -955,7 +957,7 @@ DLLEXPORT int DLLCALL tjDecompress2(tjhandle handle, unsigned char *jpegBuf, jpeg_mem_src_tj(dinfo, jpegBuf, jpegSize); jpeg_read_header(dinfo, TRUE); - if(setDecompDefaults(dinfo, pixelFormat)==-1) + if(setDecompDefaults(dinfo, pixelFormat, flags)==-1) { retval=-1; goto bailout; } |