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  1. Member
    Join Date
    Sep 2020
    Location
    Germany
    Search Comp PM
    Hey guys,

    I'm new here so I hope this is the right place for my question:

    I have a .mp4 file of a movie

    Video Codec: h264, MPEG-4 AVC, 23.976024, 1920x804,
    Audio Codec: 5.1 MPEG AAC Audio (mp4a)

    which I want to burn to a BD25 disc. The file works fine. Tried creating a Blu-Ray ISO with tsMUXER like I always do but it said not all files could be found (and it only showed the video track). I thought the .mp4 format may be the problem. So I used MKVToolNix to turn the .mp4 to a .mkv but it still didn't show the audio track in tsMUXER. Out of stubborness I tried to burn it anyway, creating a Blu-Ray ISO with tsMUXER and writing the image to disc using IMGburn. The writing was sucessful and the verifying process as well. But when I put the disc into my Sony UPB-X700 UHD blu-ray player and chose the disc in the menu it goes to black for a short moment as it's trying to load the disc but then goes back into the menu without doing anything. It also didn't work when I tried to play it on my PC using Leawo Blu-ray Player.

    By doing some research I found out that tsMUXER has a problem with AAC audio. So next I used MKVToolNix to extract the AAC audio track from the previously created .mkv and convert it to AC3 using ffmpeg (ffmpeg -i "inputaudiofile.mka" -c:a ac3 -b:a 640k "outputaudiofile.ac3"). It worked without problems and afterwards I started up MKVToolNix again, added the video from the previously created .mkv, checked off the AAC audio, added the AC3 audio and muxed it to a new .mkv file.

    This time around tsMUXER didn't complain when I loaded up the new .mkv and it showed the audio track as well. Created the Blu-ray ISO and again burned it with IMGburn to a BD25 disc. But when I put the new disc in my player, it's the same thing. It tries to load but apparently fails and goes straight back to the menu.
    Other burned discs work without any problems. I don't want to end up wasting more and more blanks trying so I thought it might be best to ask for help.

    Sorry if this post is in the wrong category or if my problem could've been solved with more research. But I just don't know what to search for as I have no clue what might cause the problem.

    I hope I didn't leave out any necessary details. If I did, please ask. Thank you very much, any help would be appreciated!
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  2. I'm a Super Moderator johns0's Avatar
    Join Date
    Jun 2002
    Location
    canada
    Search Comp PM
    Use mediainfo and copy and paste the info here to see if there's an issue with the video.Also 1920x804 isn't blu-ray compliant so if you didn't re-encode it to 1920x1080 then that's your problem.
    I think,therefore i am a hamster.
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  3. Member
    Join Date
    Sep 2020
    Location
    Germany
    Search Comp PM
    Thank you very much for your reply! I now tried re-encoding the video using ffmpeg. I used

    ffmpeg -i input.mkv -vf "scale=1920:1080:force_original_aspect_ratio=decre ase,pad=1920:1080:(ow-iw)/2:(oh-ih)/2,setsar=1" output.mkv
    (the space in "decrease" isn't in the original command, don't know why I cant remove it in here)

    but everytime I did that (tried it two times) it reduced the file from about 13gb to about 2gb and apparently the quality with it. And I have absolutely no idea why. What I want is to fill up the remaining 276 pixels (138 above, 138 below) with black bars without any or only marginal quality loss to finally have a file that I can create an image of with tsMUXER and burn it to a functioning Blu-ray with IMGburn.

    Please note that I'm just getting into this whole thing and have very little experience with coding and ffmpeg. But I'm willing to learn and would be very thankful for any kind of help or advice. I'll post the info I got out of the 3 files (the original 1920x804 .mp4 with AAC audio, the 1920x804 .mkv with converted AC3 audio and the re-encoded 1920x1080 video only .mkv that got shrinked massively in the process) down below. Thank you very much!

    The original 1920x804 .mp4 with AAC audio:

    General
    CompleteName originalfile.mp4
    Format/String : MPEG-4
    Format_Profile : Base Media / Version 2
    CodecID/String : mp42 (mp42/isom)
    FileSize/String : 13.4 GiB
    Duration/String : 2h 12mn
    OverallBitRate_Mode/String : VBR
    OverallBitRate/String : 14.5 Mbps
    Encoded_Date : UTC 2019-10-16 10:55:08
    Tagged_Date : UTC 2019-10-16 10:55:08

    Video
    ID/String : 2
    Format/String : AVC
    Format/Info : Advanced Video Codec
    Format_Profile : High@L4
    Format_Settings : CABAC / 2 Ref Frames
    Format_Settings_CABAC/String : Yes
    Format_Settings_RefFrames/String : 2 frame
    Format_Settings_GOP : M=2, N=12
    CodecID : avc1
    CodecID/Info : Advanced Video Coding
    Duration/String : 2h 12mn
    BitRate_Mode/String : VBR
    BitRate/String : 14.0 Mbps
    BitRate_Maximum/String : 16.0 Mbps
    Width/String : 1920 pixel
    Height/String : 804 pixel
    DisplayAspectRatio/String : 2.40:1
    FrameRate_Mode/String : CFR
    FrameRate/String : 23.976 (24000/1001) fps
    ColorSpace : YUV
    ChromaSubsampling/String : 4:2:0
    BitDepth/String : 8 bit
    ScanType/String : Progressive
    Bits-(Pixel*Frame) : 0.377
    StreamSize/String : 12.9 GiB (96%)
    Language/String : en
    Encoded_Date : UTC 2019-10-16 10:55:08
    Tagged_Date : UTC 2019-10-16 10:55:08
    CodecConfigurationBox : avcC

    Audio
    ID/String : 1
    Format/String : AAC LC
    Format/Info : Advanced Audio Codec Low Complexity
    CodecID : mp4a-40-2
    Duration/String : 2h 12mn
    BitRate_Mode/String : CBR
    BitRate/String : 512 Kbps
    Channel(s)/String : 6 channel
    ChannelLayout : C L R Ls Rs LFE
    SamplingRate/String : 48.0 KHz
    FrameRate/String : 46.875 fps (1024 SPF)
    Compression_Mode/String : Lossy
    StreamSize/String : 485 MiB (4%)
    Language/String : en
    Encoded_Date : UTC 2019-10-16 10:55:08
    Tagged_Date : UTC 2019-10-16 10:55:08


    The 1920x804 .mkv with converted AC3 audio:

    General
    UniqueID/String : 313133381790551470391698819023621855123 (0xEB934BB03A35727893A575AB2BC01793)
    CompleteName : audioconvertedtoac3andremuxed.mkv
    Format/String : Matroska
    Format_Version : Version 4
    FileSize/String : 13.5 GiB
    Duration/String : 2h 12mn
    OverallBitRate_Mode/String : VBR
    OverallBitRate/String : 14.6 Mbps
    Encoded_Date : UTC 2020-09-06 12:50:17
    Encoded_Application/String : mkvmerge v49.0.0 ('Sick Of Losing Soulmates') 64-bit
    Encoded_Library/String : libebml v1.4.0 + libmatroska v1.6.1

    Video
    ID/String : 2
    Format/String : AVC
    Format/Info : Advanced Video Codec
    Format_Profile : High@L4
    Format_Settings : CABAC / 2 Ref Frames
    Format_Settings_CABAC/String : Yes
    Format_Settings_RefFrames/String : 2 frame
    Format_Settings_GOP : M=2, N=12
    CodecID : V_MPEG4/ISO/AVC
    Duration/String : 2h 12mn
    BitRate_Mode/String : VBR
    BitRate/String : 14.0 Mbps
    BitRate_Maximum/String : 16.0 Mbps
    Width/String : 1920 pixel
    Height/String : 804 pixel
    DisplayAspectRatio/String : 2.40:1
    FrameRate_Mode/String : CFR
    FrameRate/String : 23.976 (24000/1001) fps
    ColorSpace : YUV
    ChromaSubsampling/String : 4:2:0
    BitDepth/String : 8 bit
    ScanType/String : Progressive
    Bits-(Pixel*Frame) : 0.377
    StreamSize/String : 12.9 GiB (96%)
    Language/String : en
    Default/String : Yes
    Forced/String : No

    Audio
    ID/String : 1
    Format/String : AC-3
    Format/Info : Audio Coding 3
    Format_Commercial_IfAny : Dolby Digital
    CodecID : A_AC3
    Duration/String : 2h 12mn
    BitRate_Mode/String : CBR
    BitRate/String : 640 Kbps
    Channel(s)/String : 6 channel
    ChannelLayout : L R C LFE Ls Rs
    SamplingRate/String : 48.0 KHz
    FrameRate/String : 31.250 fps (1536 SPF)
    Compression_Mode/String : Lossy
    StreamSize/String : 606 MiB (4%)
    ServiceKind/String : Complete Main
    Default/String : Yes
    Forced/String : No

    The re-encoded 1920x1080 video only .mkv that got shrinked massively in the process:

    General
    UniqueID/String : 69022280309392703469828599991638719956 (0x33ED352867923CABEC3B3091F6187DD4)
    CompleteName : thereencoded1920x1080filevideoonly.mkv
    Format/String : Matroska
    Format_Version : Version 4
    FileSize/String : 2.08 GiB
    Duration/String : 2h 12mn
    OverallBitRate/String : 2245 Kbps
    Encoded_Application/String : Lavf58.35.102
    Encoded_Library/String : Lavf58.35.102
    ErrorDetectionType : Per level 1

    Video
    ID/String : 1
    Format/String : AVC
    Format/Info : Advanced Video Codec
    Format_Profile : High@L4
    Format_Settings : CABAC / 4 Ref Frames
    Format_Settings_CABAC/String : Yes
    Format_Settings_RefFrames/String : 4 frame
    CodecID : V_MPEG4/ISO/AVC
    Duration/String : 2h 12mn
    BitRate/String : 14.0 Mbps
    Width/String : 1920 pixel
    Height/String : 1080 pixel
    DisplayAspectRatio/String : 16:9
    FrameRate_Mode/String : CFR
    FrameRate/String : 23.976 (24000/1001) fps
    ColorSpace : YUV
    ChromaSubsampling/String : 4:2:0
    BitDepth/String : 8 bit
    ScanType/String : Progressive
    Bits-(Pixel*Frame) : 0.281
    StreamSize/String : 12.9 GiB
    Encoded_Library/String : x264 core 159
    Encoded_Library_Settings : cabac=1 / ref=3 / deblock=1:0:0 / analyse=0x3:0x113 / me=hex / subme=7 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=18 / lookahead_threads=3 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / 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=40 / rc=crf / mbtree=1 / crf=23.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00
    Language/String : en
    Default/String : Yes
    Forced/String : No
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  4. I'm a Super Moderator johns0's Avatar
    Join Date
    Jun 2002
    Location
    canada
    Search Comp PM
    Try using vidcoder and in encoding setting sizing set it to 1920x1080 and padding set it to height so you get the black bars to fill it to output 1920x1080 and in the video encoding tab set it to constant framerate and constant quality at 18 and in the audio encoding tab set it to codec ac3 bitrate at 640 and mixdown at 5.1 channels,save this profile and load the original mp4 and add to queue and click on encode.
    I think,therefore i am a hamster.
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  5. Member
    Join Date
    Sep 2020
    Location
    Germany
    Search Comp PM
    Thank you very very much for your help! I've set up the profile in VidCoder and I'm encoding the file right now. My schedule is pretty packed at the moment so don't know when I'll get around to burn the Blu-ray. But I'll definitely post my results when I do.
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