On 08/11/2025 08.20, Gerd Thissen via ffmpeg-user wrote: > Hi, > > I have question with respect to video compatibilty on Samsung tv. Videos > in hevc-format (H.265) are not accepted, so i transcoded them to H.264 > using "kdenvlive". This works fine. videos are accepted by Samsung tv. > But transcoding hevc-videos to H.264 using "ffmpeg" are refused by > Samsung. Some specific parameters must be missing. Comparing results of > "ffprobe" between videos produced by "kdenlive" and by "ffmpeg" don't > show significant changes. > > Extracts from "ffprobe -v info -show_entries > stream=codec_name,codec_type -of default=noprint_wrappers=1:nokey=1": > > a) Input file generated by ffmpeg: > Stream #0:0[0x1](eng): Video: h264 (High) (avc1 / 0x31637661), > yuv420p(tv, bt709, progressive), 1080x1920, 13290 kb/s, 29.92 fps, 29.92 > tbr, 11488 tbn (default) > > b) Input file generated by "kdenlive": > Stream #0:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), > yuv420p(tv, bt709, progressive), 1080x1920 [SAR 1:1 DAR 9:16], 15067 > kb/s, 29.97 fps, 29.97 tbr, 30k tbn (default) > > Do you have ideas which parameters should be applied to ffmpeg command > for transcoding?
Hi Gerd, You don't show the FFmpeg command you use to transcode H.265 to x264. Here's what I use for the encoding: -c:v libx264 -x264-params 8x8dct=1:analyse=0x3,0x133:aq-mode=1:aq-strength=1.0:b-adapt=2:b-bias=0:b-pyramid=2:bframes=5:bitrate=2850:bluray-compat=0:cabac=1:chroma-me=1:chroma-qp-offset=-2:constrained-intra=0:cplxblur=20.0:cqm=flat:deadzone-inter=21:deadzone-intra=11:deblock=1,-1,-1:direct=auto:fast-pskip=0:filler=0:interlaced=0:intra-refresh=0:ipratio=1.40:keyint-min=23:keyint=240:lookahead-threads=3:mbtree=1:me=umh:merange=30:nal-hrd=none:nr=0:open-gop=0:psy-rd=1.00,0.00:psy=1:qblur=0.5:qcomp=0.60:qpmax=69:qpmin=1:qpstep=4:ratetol=1.0:rc-lookahead=50:ref=5:scenecut=40:sliced-threads=0:slices=4:subme=7:threads=12:trellis=1:vbv-bufsize=78125:vbv-maxrate=62500:weightb=1:weightp=2 Try it and let me know the results with your Samsung TV, eh? _______________________________________________ ffmpeg-user mailing list -- [email protected] To unsubscribe send an email to [email protected]
