ADAPT_LEVEL       315 libavcodec/sonic.c             step += step / ADAPT_LEVEL;
ADAPT_LEVEL       328 libavcodec/sonic.c             step -= step / ADAPT_LEVEL;
ADAPT_LEVEL       382 libavcodec/sonic.c             step += step / ADAPT_LEVEL;
ADAPT_LEVEL       400 libavcodec/sonic.c             step -= step / ADAPT_LEVEL;