539                       const WebPPicture* const curr_canvas, int is_key_frame,  in GetSubRect()  argument
544   if (!is_key_frame || is_first_frame) {  // Optimize frame rectangle.  in GetSubRect()
570                        const WebPPicture* const curr_canvas, int is_key_frame,  in GetSubRects()  argument
578   if (!GetSubRect(prev_canvas, curr_canvas, is_key_frame, is_first_frame,  in GetSubRects()
585   return GetSubRect(prev_canvas, curr_canvas, is_key_frame, is_first_frame,  in GetSubRects()
853     WebPMuxAnimDispose dispose_method, int is_lossless, int is_key_frame,  in GenerateCandidates()  argument
871       !is_key_frame &&  in GenerateCandidates()
874       !is_key_frame &&  in GenerateCandidates()
1012                               Candidate* const candidates, int is_key_frame,  in PickBestCandidate()  argument
1030         WebPMuxFrameInfo* const dst = is_key_frame  in PickBestCandidate()
1035         if (!is_key_frame) {  in PickBestCandidate()
1060                                   int is_key_frame,  in SetFrame()  argument
1090       !is_key_frame && !enc->prev_candidate_undecided_;  in SetFrame()
1111   if (!GetSubRects(prev_canvas, curr_canvas, is_key_frame, is_first_frame,  in SetFrame()
1133     if (!GetSubRects(prev_canvas_disposed, curr_canvas, is_key_frame,  in SetFrame()
1158         enc, candidates, WEBP_MUX_DISPOSE_NONE, is_lossless, is_key_frame,  in SetFrame()
1167         enc, candidates, WEBP_MUX_DISPOSE_BACKGROUND, is_lossless, is_key_frame,  in SetFrame()
1172   PickBestCandidate(enc, candidates, is_key_frame, encoded_frame);  in SetFrame()