The following files have MPC-HC specific custom code (compared to FFmpeg):

* config.asm
* config.h
* makefile

* libavcodec/aacdec.c
* libavcodec/aacsbr.c
* libavcodec/allcodecs.c
* libavcodec/avcodec.h
* libavcodec/h263dec.c
* libavcodec/h264.c
* libavcodec/h264.h
* libavcodec/mpeg12.c
* libavcodec/mpeg12.h
* libavcodec/mpegvideo.c
* libavcodec/pthread.c
* libavcodec/utils.c
* libavcodec/vc1dec.c

* libavutil/common.h
* libavutil/log.h
* libavutil/mem.c
* libavutil/mem.h
* libavutil/samplefmt.h


The following files are available only in MPC-HC (compared to FFmpeg):

* libavcodec/dxva.h
* libavcodec/h264_dxva.c
* libavcodec/h264_recov.c
* libavcodec/mpc_helper.c
* libavcodec/vc1_dxva.c
