FF_REGET_BUFFER_FLAG_READONLY 1939 libavcodec/decode.c     if ((flags & FF_REGET_BUFFER_FLAG_READONLY) || av_frame_is_writable(frame))
FF_REGET_BUFFER_FLAG_READONLY  208 libavcodec/nuv.c         flags |= FF_REGET_BUFFER_FLAG_READONLY;
FF_REGET_BUFFER_FLAG_READONLY   61 libavcodec/wcmv.c         flags |= FF_REGET_BUFFER_FLAG_READONLY;