x264 mixed_ref=0 issue - Printable Version +- Selur's Little Message Board (https://forum.selur.net) +-- Forum: Hybrid - Support (https://forum.selur.net/forum-1.html) +--- Forum: Problems & Questions (https://forum.selur.net/forum-3.html) +--- Thread: x264 mixed_ref=0 issue (/thread-3946.html)

x264 mixed_ref=0 issue - Lipomo - 09.12.2024 The mixed ref box is checked by default but mixed_ref=0 on the encoding. I think that's a bug RE: x264 mixed_ref=0 issue - Selur - 09.12.2024 Mixed ref, should be on by default. There only is an option in the command line interface to disable it: --no-mixed-refs         Don't decide references on a per partition basis source: x264 --fullhelp Just tried to reproduce it using: x264 --pass 1 --bitrate 1500 --profile high --level 5.1 --ref 1 --keyint 250 --min-keyint 0 --scenecut 40 --bframes 3 --b-bias 0 --b-pyramid normal --direct auto --b-adapt 0 --sync-lookahead 11 --cplxblur 20.0 --qcomp 0.50 --qblur 0.50 --mbtree --rc-lookahead 40 --ipratio 1.40 --pbratio 1.30 --chroma-qp-offset 0 --qpmin 0 --qpmax 51 --qpstep 4 --partitions none --no-8x8dct --8x8dct --me dia --mvrange -1 --subme 2 --cabac --trellis 0 --weightp 1 --aq-mode 0 --nr 0 --deadzone-inter 21 --deadzone-intra 11 --cqm flat --threads auto --sar 1:1 --qpfile GENERATED_QP_FILE --deblock 0:0 --non-deterministic --range tv --stats "/Users/selur/tmp/test.stats" --demuxer raw --input-res 640x352 --input-csp i420 --input-range tv --input-depth 8 --fps 25/1 --output-csp i420 --output-depth 8 --output NUL - x264 --pass 2 --bitrate 1500 --profile high --level 5.1 --ref 3 --keyint 250 --min-keyint 0 --scenecut 40 --bframes 3 --b-bias 0 --b-pyramid normal --direct auto --b-adapt 0 --sync-lookahead 11 --cplxblur 20.0 --qcomp 0.50 --qblur 0.50 --mbtree --rc-lookahead 40 --ipratio 1.40 --pbratio 1.30 --chroma-qp-offset 0 --qpmin 0 --qpmax 51 --qpstep 4 --partitions i4x4,p8x8,b8x8 --8x8dct --no-fast-pskip --me hex --merange 16 --mvrange -1 --subme 5 --cabac --trellis 0 --weightp 1 --aq-mode 0 --vbv-maxrate 300000 --vbv-bufsize 300000 --nr 0 --deadzone-inter 21 --deadzone-intra 11 --cqm flat --threads auto --sar 1:1 --qpfile GENERATED_QP_FILE --deblock 0:0 --non-deterministic --range tv --colormatrix smpte170m --stats "/Users/selur/tmp/test.stats" --demuxer raw --input-res 640x352 --input-csp i420 --input-range tv --input-depth 8 --fps 25/1 --output-csp i420 --output-depth 8 --output "/Users/selur/tmp/test.264" - then looked with MediaInfo at the output: Encoding settings                        : cabac=1 / ref=3 / deblock=1:0:0 / analyse=0x3:0x111 / me=hex / subme=5 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=0 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=0 / chroma_qp_offset=0 / threads=11 / lookahead_threads=2 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=0 / b_bias=0 / direct=3 / weightb=1 / open_gop=0 / weightp=1 / keyint=250 / keyint_min=25 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=2pass / mbtree=1 / bitrate=1500 / ratetol=1.0 / qcomp=0.50 / qpmin=0 / qpmax=51 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / vbv_maxrate=300000 / vbv_bufsize=300000 / nal_hrd=none / filler=0 / ip_ratio=1.40 / aq=1:0.00 => Can't reproduce it, here 'mixed_ref=1' is properly set. I can look at it more (tomorrow evening) if you read the sticky and provide proper details. Cu Selur RE: x264 mixed_ref=0 issue - Lipomo - 09.12.2024 Wait a sec, before doing a full post I think I found the issue. -> When minimize command line is checked : mixed_ref = 0 -> When minimize command line is not checked : mixed_ref = 1 Can you try ? RE: x264 mixed_ref=0 issue - Selur - 09.12.2024 I can reproduce the problem. Strange. with minimize on: x264 --preset veryfast --pass 1 --bitrate 1500 --profile high --level 5.1 --direct auto --b-adapt 0 --sync-lookahead 11 --qcomp 0.50 --rc-lookahead 40 --qpmax 51 --partitions none --no-8x8dct --me dia --aq-mode 0 --sar 1:1 --qpfile GENERATED_QP_FILE --non-deterministic --range tv --stats "/Users/selur/tmp/test_new.stats" --demuxer raw --input-res 640x352 --input-csp i420 --input-range tv --input-depth 8 --fps 25/1 --output-depth 8 --output NUL - x264 --preset veryfast --pass 2 --bitrate 1500 --profile high --level 5.1 --ref 3 --direct auto --b-adapt 0 --sync-lookahead 11 --qcomp 0.50 --rc-lookahead 40 --qpmax 51 --partitions i4x4,p8x8,b8x8 --no-fast-pskip --subme 5 --aq-mode 0 --vbv-maxrate 300000 --vbv-bufsize 300000 --sar 1:1 --qpfile GENERATED_QP_FILE --non-deterministic --range tv --colormatrix smpte170m --stats "/Users/selur/tmp/test_new.stats" --demuxer raw --input-res 640x352 --input-csp i420 --input-range tv --input-depth 8 --fps 25/1 --output-depth 8 --output "/Users/selur/tmp/test_new.264" - with minimize off: x264 --pass 1 --bitrate 1500 --profile high --level 5.1 --ref 1 --keyint 250 --min-keyint 0 --scenecut 40 --bframes 3 --b-bias 0 --b-pyramid normal --direct auto --b-adapt 0 --sync-lookahead 11 --cplxblur 20.0 --qcomp 0.50 --qblur 0.50 --mbtree --rc-lookahead 40 --ipratio 1.40 --pbratio 1.30 --chroma-qp-offset 0 --qpmin 0 --qpmax 51 --qpstep 4 --partitions none --no-8x8dct --8x8dct --me dia --mvrange -1 --subme 2 --cabac --trellis 0 --weightp 1 --aq-mode 0 --nr 0 --deadzone-inter 21 --deadzone-intra 11 --cqm flat --threads auto --sar 1:1 --qpfile GENERATED_QP_FILE --deblock 0:0 --non-deterministic --range tv --stats "/Users/selur/tmp/test_new.stats" --demuxer raw --input-res 640x352 --input-csp i420 --input-range tv --input-depth 8 --fps 25/1 --output-csp i420 --output-depth 8 --output NUL - x264 --pass 2 --bitrate 1500 --profile high --level 5.1 --ref 3 --keyint 250 --min-keyint 0 --scenecut 40 --bframes 3 --b-bias 0 --b-pyramid normal --direct auto --b-adapt 0 --sync-lookahead 11 --cplxblur 20.0 --qcomp 0.50 --qblur 0.50 --mbtree --rc-lookahead 40 --ipratio 1.40 --pbratio 1.30 --chroma-qp-offset 0 --qpmin 0 --qpmax 51 --qpstep 4 --partitions i4x4,p8x8,b8x8 --8x8dct --no-fast-pskip --me hex --merange 16 --mvrange -1 --subme 5 --cabac --trellis 0 --weightp 1 --aq-mode 0 --vbv-maxrate 300000 --vbv-bufsize 300000 --nr 0 --deadzone-inter 21 --deadzone-intra 11 --cqm flat --threads auto --sar 1:1 --qpfile GENERATED_QP_FILE --deblock 0:0 --non-deterministic --range tv --colormatrix smpte170m --stats "/Users/selur/tmp/test_new.stats" --demuxer raw --input-res 640x352 --input-csp i420 --input-range tv --input-depth 8 --fps 25/1 --output-csp i420 --output-depth 8 --output "/Users/selur/tmp/test_new.264" - => I see the problem: 'veryfast': - veryfast:                                     --no-mixed-refs --rc-lookahead 10                                     --ref 1 --subme 2 --trellis 0 --weightp 1 disables, the mixed-refs, and there is no option to enable it which Hybrid could use. => will fix tomorrow evening. I will adjust Hybrid to not minimize to 'veryfast','superfast','ultrafast' unless '--no-mixed-refs' is enabled tomorrow. Cu Selur RE: x264 mixed_ref=0 issue - Lipomo - 09.12.2024 Cool, perfect RE: x264 mixed_ref=0 issue - Selur - 10.12.2024 Uploaded a new dev, which should fix the problem, before going to work. Cu Selur RE: x264 mixed_ref=0 issue - Lipomo - 12.12.2024 It's fixed, I can't reproduce the problem. Whether I encode with minimized command line or no, mixed_ref is enabled.