35 static WebPMuxError MuxGet(const WebPMux* const mux, CHUNK_INDEX idx,  in MuxGet()  argument
37   assert(mux != NULL);  in MuxGet()
41   SWITCH_ID_LIST(IDX_VP8X, mux->vp8x_);  in MuxGet()
42   SWITCH_ID_LIST(IDX_ICCP, mux->iccp_);  in MuxGet()
43   SWITCH_ID_LIST(IDX_ANIM, mux->anim_);  in MuxGet()
44   SWITCH_ID_LIST(IDX_EXIF, mux->exif_);  in MuxGet()
45   SWITCH_ID_LIST(IDX_XMP, mux->xmp_);  in MuxGet()
179   WebPMux* mux = NULL;  in WebPMuxCreateInternal()  local
205   mux = WebPMuxNew();  in WebPMuxCreateInternal()
206   if (mux == NULL) return NULL;  in WebPMuxCreateInternal()
258         if (MuxImagePush(wpi, &mux->images_) != WEBP_MUX_OK) goto Err;  in WebPMuxCreateInternal()
271               MuxGetChunkListFromId(mux, id);  // List to add this chunk.  in WebPMuxCreateInternal()
276           mux->canvas_width_ = GetLE24(data + 12) + 1;  in WebPMuxCreateInternal()
277           mux->canvas_height_ = GetLE24(data + 15) + 1;  in WebPMuxCreateInternal()
290   if (MuxValidate(mux) != WEBP_MUX_OK) goto Err;  in WebPMuxCreateInternal()
293   return mux;  // All OK;  in WebPMuxCreateInternal()
298   WebPMuxDelete(mux);  in WebPMuxCreateInternal()
306 static WebPMuxError ValidateForSingleImage(const WebPMux* const mux) {  in ValidateForSingleImage()  argument
307   const int num_images = MuxImageCount(mux->images_, WEBP_CHUNK_IMAGE);  in ValidateForSingleImage()
308   const int num_frames = MuxImageCount(mux->images_, WEBP_CHUNK_ANMF);  in ValidateForSingleImage()
324 static WebPMuxError MuxGetCanvasInfo(const WebPMux* const mux,  in MuxGetCanvasInfo()  argument
329   assert(mux != NULL);  in MuxGetCanvasInfo()
332   if (MuxGet(mux, IDX_VP8X, 1, &data) == WEBP_MUX_OK) {  in MuxGetCanvasInfo()
338     const WebPMuxImage* const wpi = mux->images_;  in MuxGetCanvasInfo()
340     w = mux->canvas_width_;  in MuxGetCanvasInfo()
341     h = mux->canvas_height_;  in MuxGetCanvasInfo()
342     if (w == 0 && h == 0 && ValidateForSingleImage(mux) == WEBP_MUX_OK) {  in MuxGetCanvasInfo()
360 WebPMuxError WebPMuxGetCanvasSize(const WebPMux* mux, int* width, int* height) {  in WebPMuxGetCanvasSize()  argument
361   if (mux == NULL || width == NULL || height == NULL) {  in WebPMuxGetCanvasSize()
364   return MuxGetCanvasInfo(mux, width, height, NULL);  in WebPMuxGetCanvasSize()
367 WebPMuxError WebPMuxGetFeatures(const WebPMux* mux, uint32_t* flags) {  in WebPMuxGetFeatures()  argument
368   if (mux == NULL || flags == NULL) return WEBP_MUX_INVALID_ARGUMENT;  in WebPMuxGetFeatures()
369   return MuxGetCanvasInfo(mux, NULL, NULL, flags);  in WebPMuxGetFeatures()
423 WebPMuxError WebPMuxGetChunk(const WebPMux* mux, const char fourcc[4],  in WebPMuxGetChunk()  argument
426   if (mux == NULL || fourcc == NULL || chunk_data == NULL) {  in WebPMuxGetChunk()
433     return MuxGet(mux, idx, 1, chunk_data);  in WebPMuxGetChunk()
436         ChunkSearchList(mux->unknown_, 1, ChunkGetTagFromFourCC(fourcc));  in WebPMuxGetChunk()
480     const WebPMux* mux, uint32_t nth, WebPMuxFrameInfo* frame) {  in WebPMuxGetFrame()  argument
485   if (mux == NULL || frame == NULL) {  in WebPMuxGetFrame()
490   err = MuxImageGetNth((const WebPMuxImage**)&mux->images_, nth, &wpi);  in WebPMuxGetFrame()
501 WebPMuxError WebPMuxGetAnimationParams(const WebPMux* mux,  in WebPMuxGetAnimationParams()  argument
506   if (mux == NULL || params == NULL) return WEBP_MUX_INVALID_ARGUMENT;  in WebPMuxGetAnimationParams()
508   err = MuxGet(mux, IDX_ANIM, 1, &anim);  in WebPMuxGetAnimationParams()
539 WebPMuxError WebPMuxNumChunks(const WebPMux* mux,  in WebPMuxNumChunks()  argument
541   if (mux == NULL || num_elements == NULL) {  in WebPMuxNumChunks()
546     *num_elements = MuxImageCount(mux->images_, id);  in WebPMuxNumChunks()
548     WebPChunk* const* chunk_list = MuxGetChunkListFromId(mux, id);  in WebPMuxNumChunks()