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Diffstat (limited to 'libtiff/tif_ojpeg.c')
-rw-r--r--libtiff/tif_ojpeg.c53
1 files changed, 23 insertions, 30 deletions
diff --git a/libtiff/tif_ojpeg.c b/libtiff/tif_ojpeg.c
index bf0d1a2a..d6f7d97e 100644
--- a/libtiff/tif_ojpeg.c
+++ b/libtiff/tif_ojpeg.c
@@ -837,36 +837,6 @@ OJPEGDecodeRaw(TIFF* tif, uint8* buf, tmsize_t cc)
{
if (sp->subsampling_convert_state==0)
{
- const jpeg_decompress_struct* cinfo = &sp->libjpeg_jpeg_decompress_struct;
- int width = 0;
- int last_col_width = 0;
- int jpeg_bytes;
- int expected_bytes;
- int i;
- if (cinfo->MCUs_per_row == 0)
- {
- sp->error_in_raw_data_decoding = 1;
- return 0;
- }
- for (i = 0; i < cinfo->comps_in_scan; ++i)
- {
- const jpeg_component_info* info = cinfo->cur_comp_info[i];
-#if JPEG_LIB_VERSION >= 70
- width += info->MCU_width * info->DCT_h_scaled_size;
- last_col_width += info->last_col_width * info->DCT_h_scaled_size;
-#else
- width += info->MCU_width * info->DCT_scaled_size;
- last_col_width += info->last_col_width * info->DCT_scaled_size;
-#endif
- }
- jpeg_bytes = (cinfo->MCUs_per_row - 1) * width + last_col_width;
- expected_bytes = sp->subsampling_convert_clinelenout * sp->subsampling_ver * sp->subsampling_hor;
- if (jpeg_bytes != expected_bytes)
- {
- TIFFErrorExt(tif->tif_clientdata,module,"Inconsistent number of MCU in codestream");
- sp->error_in_raw_data_decoding = 1;
- return(0);
- }
if (jpeg_read_raw_data_encap(sp,&(sp->libjpeg_jpeg_decompress_struct),sp->subsampling_convert_ycbcrimage,sp->subsampling_ver*8)==0)
{
sp->error_in_raw_data_decoding = 1;
@@ -1291,6 +1261,29 @@ OJPEGWriteHeaderInfo(TIFF* tif)
}
if (jpeg_start_decompress_encap(sp,&(sp->libjpeg_jpeg_decompress_struct))==0)
return(0);
+ if(sp->libjpeg_jpeg_decompress_struct.image_width != sp->strile_width ||
+ sp->libjpeg_jpeg_decompress_struct.image_height < sp->strile_length) {
+ TIFFErrorExt(tif->tif_clientdata,module,
+ "jpeg_start_decompress() returned image_width = %d "
+ "and image_height = %d, expected %d and %d",
+ sp->libjpeg_jpeg_decompress_struct.image_width,
+ sp->libjpeg_jpeg_decompress_struct.image_height,
+ sp->strile_width,
+ sp->strile_length);
+ return 0;
+ }
+ if(sp->libjpeg_jpeg_decompress_struct.max_h_samp_factor != sp->subsampling_hor ||
+ sp->libjpeg_jpeg_decompress_struct.max_v_samp_factor != sp->subsampling_ver) {
+ TIFFErrorExt(tif->tif_clientdata,module,
+ "jpeg_start_decompress() returned max_h_samp_factor = %d "
+ "and max_v_samp_factor = %d, expected %d and %d",
+ sp->libjpeg_jpeg_decompress_struct.max_h_samp_factor,
+ sp->libjpeg_jpeg_decompress_struct.max_v_samp_factor,
+ sp->subsampling_hor,
+ sp->subsampling_ver);
+ return 0;
+ }
+
sp->writeheader_done=1;
return(1);
}