mux: cosmetics

add a few missing consts and remove an unnecessary cast

Change-Id: I396571090ce379bbc7a173cbc90714a6b7b52a2a
This commit is contained in:
James Zern 2012-02-23 13:21:43 -08:00
parent cb5810dfbe
commit dc17abdcb6

View File

@ -165,7 +165,7 @@ WebPMux* WebPMuxCreate(const uint8_t* data, uint32_t size, int copy_data,
if (wpi->is_partial_) goto Err; // Encountered a non-image chunk before
// getting all chunks of an image.
chunk_list = GetChunkListFromId(mux, id); // List for adding this chunk.
if (chunk_list == NULL) chunk_list = (WebPChunk**)&mux->unknown_;
if (chunk_list == NULL) chunk_list = &mux->unknown_;
if (ChunkSetNth(&chunk, chunk_list, 0) != WEBP_MUX_OK) goto Err;
}
@ -356,9 +356,9 @@ WebPMuxError WebPMuxGetTile(const WebPMux* const mux, uint32_t nth,
// Count number of chunks matching 'tag' in the 'chunk_list'.
// If tag == NIL_TAG, any tag will be matched.
static int CountChunks(WebPChunk* const chunk_list, uint32_t tag) {
static int CountChunks(const WebPChunk* const chunk_list, uint32_t tag) {
int count = 0;
WebPChunk* current;
const WebPChunk* current;
for (current = chunk_list; current != NULL; current = current->next_) {
if (tag == NIL_TAG || current->tag_ == tag) {
count++; // Count chunks whose tags match.
@ -378,7 +378,7 @@ WebPMuxError WebPMuxNumNamedElements(const WebPMux* const mux, const char* tag,
if (IsWPI(id)) {
*num_elements = MuxImageCount(mux->images_, id);
} else {
WebPChunk** chunk_list = GetChunkListFromId(mux, id);
WebPChunk* const* chunk_list = GetChunkListFromId(mux, id);
if (chunk_list == NULL) {
*num_elements = 0;
} else {