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-rw-r--r--src/encode.c17
-rw-r--r--src/libaec.h3
-rw-r--r--src/sz_compat.c6
3 files changed, 18 insertions, 8 deletions
diff --git a/src/encode.c b/src/encode.c
index 1c36008..b6b5e26 100644
--- a/src/encode.c
+++ b/src/encode.c
@@ -775,11 +775,18 @@ int aec_encode_init(struct aec_stream *strm)
if (strm->bits_per_sample > 32 || strm->bits_per_sample == 0)
return AEC_CONF_ERROR;
- if (strm->block_size != 8
- && strm->block_size != 16
- && strm->block_size != 32
- && strm->block_size != 64)
- return AEC_CONF_ERROR;
+ if (strm->flags & AEC_NOT_ENFORCE) {
+ /* All even block sizes are allowed. */
+ if (strm->block_size & 1)
+ return AEC_CONF_ERROR;
+ } else {
+ /* Only allow standard conforming block sizes */
+ if (strm->block_size != 8
+ && strm->block_size != 16
+ && strm->block_size != 32
+ && strm->block_size != 64)
+ return AEC_CONF_ERROR;
+ }
if (strm->rsi > 4096)
return AEC_CONF_ERROR;
diff --git a/src/libaec.h b/src/libaec.h
index dd90ba4..e1ba30c 100644
--- a/src/libaec.h
+++ b/src/libaec.h
@@ -120,6 +120,9 @@ struct aec_stream {
/* Pad RSI to byte boundary. Only for decoding CCSDS sample data. */
#define AEC_PAD_RSI 32
+/* Do not enforce standard regarding legal block sizes. */
+#define AEC_NOT_ENFORCE 64
+
/*************************************/
/* Return codes of library functions */
/*************************************/
diff --git a/src/sz_compat.c b/src/sz_compat.c
index 10f9232..0f7a4c7 100644
--- a/src/sz_compat.c
+++ b/src/sz_compat.c
@@ -70,8 +70,8 @@ static void deinterleave_buffer(void *dest, const void *src,
}
static void add_padding(void *dest, const void *src, size_t total,
- size_t line_size, size_t padding_size,
- int pixel_size, int pp)
+ size_t line_size, size_t padding_size,
+ int pixel_size, int pp)
{
size_t i, j, k, ls, ps;
const char *pixel;
@@ -127,7 +127,7 @@ int SZ_BufftoBuffCompress(void *dest, size_t *destLen,
strm.block_size = param->pixels_per_block;
strm.rsi = (param->pixels_per_scanline + param->pixels_per_block - 1)
/ param->pixels_per_block;
- strm.flags = convert_options(param->options_mask);
+ strm.flags = AEC_NOT_ENFORCE | convert_options(param->options_mask);
strm.avail_out = *destLen;
strm.next_out = dest;
buf = 0;