InitSegmentJob    466 third_party/libwebp/enc/analysis.c       InitSegmentJob(enc, &main_job, 0, split_row);
InitSegmentJob    467 third_party/libwebp/enc/analysis.c       InitSegmentJob(enc, &side_job, split_row, last_row);
InitSegmentJob    482 third_party/libwebp/enc/analysis.c       InitSegmentJob(enc, &main_job, 0, last_row);