static WebPMuxError DeleteFrameTileInternal(WebPMux* const mux, uint32_t nth, CHUNK_INDEX idx) { const WebPChunkId id = kChunks[idx].id; if (mux == NULL) return WEBP_MUX_INVALID_ARGUMENT; assert(idx == IDX_FRAME || idx == IDX_TILE); return MuxImageDeleteNth(&mux->images_, nth, id); }
WebPMuxError WebPMuxDeleteFrame(WebPMux* mux, uint32_t nth) { if (mux == NULL) return WEBP_MUX_INVALID_ARGUMENT; return MuxImageDeleteNth(&mux->images_, nth); }