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  1. this is video for example:

    General
    Unique ID : 171663621017637616988851290556811523488 (0x812535F7830847AE80B33CE2435535A0)
    Complete name : F:\***** 200* 1080p BluRay DD5.1 2Audio x264-HDS.mkv
    Format : Matroska
    Format version : Version 4
    File size : 16.8 GiB
    Duration : 2 h 34 min
    Overall bit rate : 15.6 Mb/s
    Movie name : ******* 200*~lee911214 @ HDS
    Encoded date : UTC 2015-08-27 14:35:51
    Writing application : mkvmerge v8.1.0 ('Psychedelic Postcard') 64bit
    Writing library : libebml v1.3.1 + libmatroska v1.4.2

    Video
    ID : 1
    Format : AVC
    Format/Info : Advanced Video Codec
    Format profile : High@L4.1
    Format settings : 6 Ref Frames
    Format settings, CABAC : No
    Format settings, Reference : 6 frames
    Codec ID : V_MPEG4/ISO/AVC
    Duration : 2 h 34 min
    Bit rate : 14.0 Mb/s
    Width : 1 920 pixels
    Height : 792 pixels
    Display aspect ratio : 2.40:1
    Frame rate mode : Constant
    Frame rate : 23.976 (24000/1001) FPS
    Color space : YUV
    Chroma subsampling : 4:2:0
    Bit depth : 8 bits
    Scan type : Progressive
    Bits/(Pixel*Frame) : 0.385
    Stream size : 15.1 GiB (90%)
    Title : ******* 200* 1080p BluRay DD5.1 2Audio x264-HDS
    Writing library : x264 core 148 r2574+50 7a3757d [8-bit@all X86_64]
    Encoding settings : cabac=0 / ref=6 / deblock=1:-3:-3 / analyse=0x3:0x113 / me=umh / subme=10 / psy=1 / fade_compensate=0.00 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=12 / lookahead_threads=1 / sliced_threads=0 / nr=0 / decimate=0 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / fgo=0 / bframes=8 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=2 / keyint=250 / keyint_min=23 / scenecut=40 / intra_refresh=0 / rc_lookahead=50 / rc=crf / mbtree=1 / crf=15.7000 / qcomp=0.60 / qpmin=0:0:0 / qpmax=69:69:69 / qpstep=4 / ip_ratio=1.20 / aq=4:0.80 / aq-sensitivity=10.00 / aq-factor=1.00:1.00:1.00 / aq2=0 / aq3=0
    Language : English
    Default : Yes
    Forced : No

    Audio #1
    ID : 3
    Format : AC-3
    Format/Info : Audio Coding 3
    Commercial name : Dolby Digital
    Codec ID : A_AC3
    Duration : 2 h 34 min
    Bit rate mode : Constant
    Bit rate : 640 kb/s
    Channel(s) : 6 channels
    Channel layout : L R C LFE Ls Rs
    Sampling rate : 48.0 kHz
    Frame rate : 31.250 FPS (1536 SPF)
    Bit depth : 16 bits
    Compression mode : Lossy
    Stream size : 706 MiB (4%)
    Language : English
    Service kind : Complete Main
    Default : No
    Forced : No

    Audio #2
    ID : 4
    Format : AC-3
    Format/Info : Audio Coding 3
    Commercial name : Dolby Digital
    Codec ID : A_AC3
    Duration : 2 h 34 min
    Bit rate mode : Constant
    Bit rate : 640 kb/s
    Channel(s) : 6 channels
    Channel layout : L R C LFE Ls Rs
    Sampling rate : 48.0 kHz
    Frame rate : 31.250 FPS (1536 SPF)
    Bit depth : 16 bits
    Compression mode : Lossy
    Stream size : 706 MiB (4%)
    Language : Chinese
    Service kind : Complete Main
    Default : Yes
    Forced : No

    Text
    ID : 2
    Format : ASS
    Codec ID : S_TEXT/ASS
    Codec ID/Info : Advanced Sub Station Alpha
    Compression mode : Lossless
    Title : 中英双语
    Language : Chinese
    Default : Yes
    Forced : Yes
    I want to play this type of files in led tv via USB, without any Android Boxes or Laptop/Notebook

    Here in this video is:
    Format settings : 6 Ref Frames
    Format settings, Reference : 6 frames


    How to convert/change Ref 6 to 4 or 5
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  2. I am PLEABS
    Join Date
    Apr 2018
    Location
    Earth
    Search Comp PM
    not sure why you need or want to change it, but on ffmpeg re-encode its
    Code:
    -x264-params ref=4
    long encoding time though
    pretty sure that file should easily played by default
    Quote Quote  
  3. Originally Posted by Ant_G View Post
    not sure why you need or want to change it, but on ffmpeg re-encode its
    Code:
    -x264-params ref=4
    long encoding time though
    pretty sure that file should easily played by default
    reason is that i have heard, led tv has strict settings and they can not play ref 6, they can play ref 5 or below...

    i had tested, led tv can not play above 4.1, only play 4.1 or below...

    but not tested ref 6, i am downloading some content and want to play on led tv...

    thanks for your guidence
    Quote Quote  
  4. Originally Posted by Ant_G View Post
    not sure why you need or want to change it, but on ffmpeg re-encode its
    Code:
    -x264-params ref=4
    long encoding time though
    pretty sure that file should easily played by default
    sir, can you tell me how to load file and use this command ?

    i downloaded latest version of ffmpeg ,
    extracted zip/rar folder, and then rename the folder ffmpeg,
    moved all files from bin folder to ffmpeg

    i copied my video file 1.mkv in ffmpeg folder too

    Image
    [Attachment 50220 - Click to enlarge]


    then i opened cmd with administrator rights,

    then on cmd, i use these commands there

    c:
    c:\> {now i am in c drive}
    c:\> cd ffmpeg

    c:\>ffmpeg {now i am in ffmpeg folder}

    c:\>ffmpeg> ffmpeg.exe {i used this command to run ffmpeg.exe}


    cmd shows this to me

    Image
    [Attachment 50221 - Click to enlarge]


    if i am correctly using ffmpeg, please tell me with details, how to load my file, for example 1.mkv there and change reference from 6 to 4 or 5 ?
    how to use your command ?

    -x264-params ref=4
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  5. I am PLEABS
    Join Date
    Apr 2018
    Location
    Earth
    Search Comp PM
    Code:
    ffmpeg -i "your/input/path/file/1.mkv" -c:v libx264 -x264-params ref=4 "output/path/file/new 1.mkv"
    official documentation for this
    http://ffmpeg.org/ffmpeg-all.html

    guide
    https://trac.ffmpeg.org/wiki/Encode/H.264

    "how to batch"
    https://forum.videohelp.com/threads/356314-How-to-batch-convert-multiplex-any-files-with-ffmpeg
    Last edited by Ant_G; 19th Sep 2019 at 22:43. Reason: typos and link
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  6. thank you very much
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