design docs: document expected behaviour for ACCURATE and KEY_UNIT seek flags
design docs: document expected behaviour for ACCURATE and KEY_UNIT seek flags

ahmedammar/platform_external_gst_gstreamer,justinjoy/gstreamer,krichter722/gstreamer,krieger-od/gstreamer,ylatuya/gstreamer,surround-io/gstreamer,ylatuya/gstreamer,justinjoy/gstreamer,magcius/gstreamer,cablelabs/gstreamer,magcius/gstreamer,cablelabs/gstreamer,centricular/gstreamer,centricular/gstreamer,drothlis/gstreamer,lubosz/gstreamer,shelsonjava/gstreamer,drothlis/gstreamer,Lachann/gstreamer,justinjoy/gstreamer,StreamUtils/gstreamer,collects/gstreamer,jpxiong/gstreamer,krichter722/gstreamer,cfoch/gstreamer,Distrotech/gstreamer,lubosz/gstreamer,krieger-od/gstreamer,Distrotech/gstreamer,StreamUtils/gstreamer,krieger-od/gstreamer,ensonic/gstreamer,centricular/gstreamer,jpakkane/gstreamer,jpxiong/gstreamer,krichter722/gstreamer,ahmedammar/platform_external_gst_gstreamer,lovebug356/gstreamer,drothlis/gstreamer,mparis/gstreamer,cablelabs/gstreamer,surround-io/gstreamer,ensonic/gstreamer,ylatuya/gstreamer,jpakkane/gstreamer,krieger-od/gstreamer,cablelabs/gstreamer,lubosz/gstreamer,lubosz/gstreamer,shelsonjava/gstreamer,centricular/gstreamer,krieger-od/gstreamer,mparis/gstreamer,Lachann/gstreamer,ensonic/gstreamer,Distrotech/gstreamer,collects/gstreamer,StreamUtils/gstreamer,lubosz/gstreamer,ylatuya/gstreamer,lovebug356/gstreamer,Lachann/gstreamer,centricular/gstreamer,magcius/gstreamer,surround-io/gstreamer,cfoch/gstreamer,krichter722/gstreamer,drothlis/gstreamer,mparis/gstreamer,jpakkane/gstreamer,lovebug356/gstreamer,cfoch/gstreamer,ahmedammar/platform_external_gst_gstreamer,ahmedammar/platform_external_gst_gstreamer,Distrotech/gstreamer,ahmedammar/platform_external_gst_gstreamer,cablelabs/gstreamer,cfoch/gstreamer,jpakkane/gstreamer,lovebug356/gstreamer,surround-io/gstreamer,StreamUtils/gstreamer,Distrotech/gstreamer,surround-io/gstreamer,StreamUtils/gstreamer,ensonic/gstreamer,krichter722/gstreamer,cfoch/gstreamer,justinjoy/gstreamer,jpxiong/gstreamer,mparis/gstreamer,magcius/gstreamer,mparis/gstreamer,Lachann/gstreamer,ensonic/gstreamer,collects/gstreamer,jpakkane/gstreamer,magcius/gstreamer,shelsonjava/gstreamer,collects/gstreamer,ylatuya/gstreamer,drothlis/gstreamer,jpxiong/gstreamer,collects/gstreamer,justinjoy/gstreamer,Lachann/gstreamer,shelsonjava/gstreamer,lovebug356/gstreamer,jpxiong/gstreamer,shelsonjava/gstreamer