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-rw-r--r--core/src/fxcodec/codec/fx_codec_jpx_opj.cpp13
1 files changed, 10 insertions, 3 deletions
diff --git a/core/src/fxcodec/codec/fx_codec_jpx_opj.cpp b/core/src/fxcodec/codec/fx_codec_jpx_opj.cpp
index c4a0f88201..164fd3e715 100644
--- a/core/src/fxcodec/codec/fx_codec_jpx_opj.cpp
+++ b/core/src/fxcodec/codec/fx_codec_jpx_opj.cpp
@@ -52,9 +52,13 @@ static OPJ_SIZE_T opj_write_from_memory (void * p_buffer, OPJ_SIZE_T p_nb_bytes,
static OPJ_OFF_T opj_skip_from_memory (OPJ_OFF_T p_nb_bytes, void* p_user_data)
{
DecodeData* srcData = static_cast<DecodeData*>(p_user_data);
- if (srcData == NULL || srcData->src_size == 0 || srcData->src_data == NULL || srcData->offset >= srcData->src_size) {
+ if (srcData == NULL || srcData->src_size == 0 || srcData->src_data == NULL) {
return -1;
}
+ if (srcData->offset >= srcData->src_size) {
+ srcData->offset = srcData->src_size;
+ return p_nb_bytes;
+ }
OPJ_SIZE_T bufferLength = srcData->src_size - srcData->offset;
OPJ_SIZE_T skipLength = p_nb_bytes < bufferLength ? p_nb_bytes : bufferLength;
srcData->offset += skipLength;
@@ -63,9 +67,12 @@ static OPJ_OFF_T opj_skip_from_memory (OPJ_OFF_T p_nb_bytes, void* p_user_data)
static OPJ_BOOL opj_seek_from_memory (OPJ_OFF_T p_nb_bytes, void* p_user_data)
{
DecodeData* srcData = static_cast<DecodeData*>(p_user_data);
- if (srcData == NULL || srcData->src_size == 0 || srcData->src_data == NULL || srcData->offset >= srcData->src_size) {
+ if (srcData == NULL || srcData->src_size == 0 || srcData->src_data == NULL) {
return OPJ_FALSE;
}
+ if (srcData->offset >= srcData->src_size) {
+ return OPJ_TRUE;
+ }
if (p_nb_bytes >= srcData->src_size) {
return OPJ_FALSE;
}
@@ -629,7 +636,7 @@ FX_BOOL CJPX_Decoder::Init(const unsigned char* src_data, int src_size)
image = NULL;
return FALSE;
}
- if (!(opj_decode(l_codec, l_stream, image) && opj_end_decompress(l_codec, l_stream))) {
+ if (!(opj_decode(l_codec, l_stream, image) && opj_end_decompress(l_codec, l_stream))) {
opj_image_destroy(image);
image = NULL;
return FALSE;