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authorPedro Vicente Nunes <pvn@hdfgroup.org>2008-05-01 20:13:17 (GMT)
committerPedro Vicente Nunes <pvn@hdfgroup.org>2008-05-01 20:13:17 (GMT)
commit5b99eac51d8dbcbd10dd868d0f443eedad01c894 (patch)
tree6312f9927634bc9c67d2ecfd15afc1ba4fc454d0 /tools/h5repack
parentde00caed75f8cf543ace316e288d8afa7ed4a6d2 (diff)
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[svn-r14913] Introduced a compression ratio = uncompressed size / compressed size
in the printing of the compression with 3 digits of precision per hdf-forum NASA developers suggestion tested: windows, linux
Diffstat (limited to 'tools/h5repack')
-rw-r--r--tools/h5repack/h5repack_copy.c28
1 files changed, 15 insertions, 13 deletions
diff --git a/tools/h5repack/h5repack_copy.c b/tools/h5repack/h5repack_copy.c
index 01ccc21..ac2f770 100644
--- a/tools/h5repack/h5repack_copy.c
+++ b/tools/h5repack/h5repack_copy.c
@@ -323,6 +323,8 @@ out:
* H5Ocopy or not is if a change of filters or layout is requested by the user
* then use read/write else use H5Ocopy.
*
+ * May, 1, 2008: Add a printing of the compression ratio of old size / new size
+ *
*-------------------------------------------------------------------------
*/
@@ -364,7 +366,7 @@ int do_copy_objects(hid_t fidin,
if (options->verbose) {
printf("-----------------------------------------\n");
- printf(" Type Filter (%%Savings) Name\n");
+ printf(" Type Filter (Compression) Name\n");
printf("-----------------------------------------\n");
}
@@ -661,25 +663,25 @@ int do_copy_objects(hid_t fidin,
*/
if (options->verbose)
{
+ double ratio=0;
+
if (apply_s && apply_f)
{
- double per=0;
hssize_t a, b;
- /* get the storage size of the input dataset */
+ /* get the storage size of the output dataset */
dsize_out=H5Dget_storage_size(dset_out);
- a = dsize_in; b = dsize_out;
- if (a!=0)
- per = (double) (b-a)/a;
-
- per = -per;
- per *=100;
+ /* compression ratio = uncompressed size / compressed size */
- print_dataset_info(dcpl_out,travt->objs[i].name,per);
+ a = dsize_in; b = dsize_out;
+ if (b!=0)
+ ratio = (double) a / (double) b;
+
+ print_dataset_info(dcpl_out,travt->objs[i].name,ratio);
}
else
- print_dataset_info(dcpl_id,travt->objs[i].name,0.0);
+ print_dataset_info(dcpl_id,travt->objs[i].name,ratio);
/* print a message that the filter was not applied
(in case there was a filter)
@@ -1058,7 +1060,7 @@ error:
*/
static void print_dataset_info(hid_t dcpl_id,
char *objname,
- double per)
+ double ratio)
{
char strfilter[255];
#if defined (PRINT_DEBUG )
@@ -1146,7 +1148,7 @@ static void print_dataset_info(hid_t dcpl_id,
char str[255], temp[20];
strcpy(str,"dset ");
strcat(str,strfilter);
- sprintf(temp," (%.1f%%)",per);
+ sprintf(temp," (%.3f:1)",ratio);
strcat(str,temp);
printf(FORMAT_OBJ,str,objname);
}