I have encoded myu videos using ffmpeg with this command: ffmpeg -i input.mp4 -movflags faststart -c:v libx264 -x264opts 'keyint=100:min-keyint=25:no-scenecut:8x8dct:sliced-threads=0' -deblock 1:1 -flags +loop -b:v 850k -maxrate 850k -bufsize 2000k -nal-hrd cbr -vf "scale=-1280:720:flags=spline+full_chroma_inp+full_chroma_int+accurate_rnd+bitexact" -acodec libfdk_aac -b:a 320k -coder 1 -me_range 16 -bf 10 -q:v 1 -qmin 0 -qmax 69 -trellis 2 -mbtree 1 -mixed-refs 1 -preset veryslow output.mp4
videos mediainfo: Complete name : high.mp4 Format : MPEG-4 Format profile : Base Media Codec ID : isom File size : 555 MiB Duration : 1h 8mn Overall bit rate mode : Variable Overall bit rate : 1 127 Kbps Writing application : Lavf56.25.101 Video ID : 1 Format : AVC Format/Info : Advanced Video Codec Format profile : High@L3.1 Format settings, CABAC : Yes Format settings, ReFrames : 4 frames Codec ID : avc1 Codec ID/Info : Advanced Video Coding Duration : 1h 8mn Bit rate : 802 Kbps Nominal bit rate : 850 Kbps Width : 1 280 pixels Height : 720 pixels Display aspect ratio : 16:9 Frame rate mode : Constant Frame rate : 25.000 fps Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Progressive Bits/(Pixel*Frame) : 0.035 Stream size : 395 MiB (71%) Writing library : x264 core 142 r2495 6a301b6 Encoding settings : cabac=1 / ref=1 / deblock=1:1:1 / analyse=0x3:0x113 / me=hex / subme=2 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=0 / me_range=16 / chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=0 / threads=4 / lookahead_threads=1 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=10 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=1 / keyint=100 / keyint_min=51 / scenecut=0 / intra_refresh=0 / rc_lookahead=10 / rc=cbr / mbtree=1 / bitrate=850 / ratetol=1.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / vbv_maxrate=850 / vbv_bufsize=4000 / nal_hrd=none / filler=0 / ip_ratio=1.40 / aq=1:1.00 Language : English Audio ID : 2 Format : AAC Format/Info : Advanced Audio Codec Format profile : LC Codec ID : 40 Duration : 1h 8mn Bit rate mode : Variable Bit rate : 320 Kbps Maximum bit rate : 850 Kbps Channel count : 2 channels Channel positions : Front: L R Sampling rate : 48.0 KHz Compression mode : Lossy Delay relative to video : 80ms Stream size : 158 MiB (28%) Language : English I have created three bitrates. I am using MP4Box to make a dash video out of these three bitrates. so I have to use a fixed gop. the MP4box team advises to set keyint equal to min-key int. here when I try to do that (set both to 100), mediainfo on output video shows a min-keyint=51 this is my first issue that I need to fix. and the second is related to dash. this is my mp4box command: MP4Box -dash 4000 -rap -segment-name %s_ -bs-switching no -out Dash/manifest.mpd low.mp4#video med.mp4#video high.mp4#video low.mp4#audio med.mp4#audio high.mp4#audio the dash works fine on players, but when I seek in the video, after jumping to that segment, the video freezes for a few seconds and then starts to play. the delay in NOT before jumping there, it happens afer that. can anyone help me with it?? _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".