id summary reporter owner description type status priority milestone component version resolution keywords cc 81 Bit-stream switching causes encoder-decoder mismatches crhelmrich "observed with VTM 2.0 but likely to affect VTM 2.0.1 and BMS as well I took regular VTM 2.0 coded bit-steams at QP 32 and 37 (attached) and, with the VTM 2 encoder, created a bit-stream switching between the two. The command-line was ./\[vcgit.hhi.fraunhofer.de\]\[jvet\]\[VVCSoftware_BMS.git\]\[e617dff\]\[enc\] -c encoder_randomaccess_vtm2.cfg -q 32 -wdt 1920 -hgt 1080 -fr 50 -ip 48 -f 500 --InputBitDepth=8 -i BasketballDrive_1920x1080_50.yuv -o BasketballDrive_qpa32.5_sw_e.yuv -b BasketballDrive_qpa32.5_sw.bit --DecodeBitstream1=[RA][BasketballDrive][QP32].bit --DecodeBitstream2=[RA][BasketballDrive][QP37].bit --SwitchPOC=240 --SwitchDQP=5 The resulting BasketballDrive_qpa32.5_sw_e.yuv looks fine. Decoding the BasketballDrive_qpa32.5_sw.bit with the VTM 2 decoder, however, ./\[vcgit.hhi.fraunhofer.de\]\[jvet\]\[VVCSoftware_BMS.git\]\[e617dff\]\[dec\] -b BasketballDrive_qpa32.5_sw.bit -o ... causes visible errors e.g. in frame 4. Screenshots are attached. Christian" defect closed major VTM-3.0 BMS BMS-2.0.1 fixed Mismatch ksuehring XiangLi fbossen jvet@…