SLICE_MAX_START_CODE   24 libavcodec/avs2_parser.c #define SLICE_MAX_START_CODE    0x000001af
SLICE_MAX_START_CODE   32 libavcodec/cavs.h #define SLICE_MAX_START_CODE    0x000001af
SLICE_MAX_START_CODE   72 libavcodec/mpegvideo.h #define SLICE_MAX_START_CODE    0x000001af