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  1. Member
    Join Date
    Oct 2017
    Location
    Toronto, ON
    Search Comp PM
    MediaInfo shows my input file is 480x480 with a Display Aspect Ratio of 4:3. (It's converted from an old TiVo SD recording, back when networks had an SD channel and an HD channel. The PAR is obviously 4:3.)

    The show itself was shot in 16:9, so the 480x480 recording has black bars. My Avidemux, settings:
    • Video output: Mpeg4 AVC (x264)
    • Configuration > Output 1 > Predefined aspect ratio: 16:9
    • Filters: Crop 480x480 → 468x356
    • Output format: MP4 muxer

    The output file is cropped OK, but displays as 4:3 in VLC using default aspect ratio. (Although it displays correctly in Windows Media Player and Video ReDo.) Here's a test using only the first 17 seconds.

    How can I ensure the aspect ratio is correctly encoded by Avidemux?

    MediaInfo for source file:
    Code:
    General
    Complete name                            : D:\Charles\Downloads\Faites-moi confiance - 7371875 (Charles 1A - trimmed).mpg
    Format                                   : MPEG-PS
    File size                                : 173 MiB
    Duration                                 : 6 min 22 s
    Overall bit rate mode                    : Variable
    Overall bit rate                         : 3 779 kb/s
    
    Video
    ID                                       : 224 (0xE0)
    Format                                   : MPEG Video
    Format version                           : Version 2
    Format profile                           : Main@Main
    Format settings                          : CustomMatrix / BVOP
    Format settings, BVOP                    : Yes
    Format settings, Matrix                  : Custom
    Format settings, GOP                     : M=3, N=15
    Format settings, picture structure       : Frame
    Duration                                 : 6 min 22 s
    Bit rate mode                            : Variable
    Bit rate                                 : 3 512 kb/s
    Width                                    : 480 pixels
    Height                                   : 480 pixels
    Display aspect ratio                     : 4:3
    Frame rate                               : 29.970 (30000/1001) FPS
    Standard                                 : NTSC
    Color space                              : YUV
    Chroma subsampling                       : 4:2:0
    Bit depth                                : 8 bits
    Scan type                                : Interlaced
    Scan order                               : Bottom Field First
    Compression mode                         : Lossy
    Bits/(Pixel*Frame)                       : 0.509
    Time code of first frame                 : 00:00:00;00
    Time code source                         : Group of pictures header
    GOP, Open/Closed                         : Open
    GOP, Open/Closed of first frame          : Closed
    Stream size                              : 160 MiB (93%)
    Color primaries                          : BT.601 PAL
    Transfer characteristics                 : BT.470 System B/G
    Matrix coefficients                      : FCC 73.682
    
    Audio
    ID                                       : 192 (0xC0)
    Format                                   : MPEG Audio
    Format version                           : Version 1
    Format profile                           : Layer 2
    Duration                                 : 6 min 22 s
    Bit rate mode                            : Constant
    Bit rate                                 : 192 kb/s
    Channel(s)                               : 2 channels
    Sampling rate                            : 48.0 kHz
    Frame rate                               : 41.667 FPS (1152 SPF)
    Compression mode                         : Lossy
    Delay relative to video                  : 6 ms
    Stream size                              : 8.76 MiB (5%)
    MediaInfo for Avidemux output file:
    Code:
    General
    Complete name                            : D:\Charles\Downloads\Faites-moi confiance - 7371875 (S01E31 - 2014-02-10 - Charles 1A - final).mp4
    Format                                   : MPEG-4
    Format profile                           : Base Media
    Codec ID                                 : isom (isom/iso2/avc1/mp41)
    File size                                : 3.17 MiB
    Duration                                 : 17 s 184 ms
    Overall bit rate                         : 1 546 kb/s
    Writing application                      : Lavf58.20.100
    
    Video
    ID                                       : 1
    Format                                   : AVC
    Format/Info                              : Advanced Video Codec
    Format profile                           : High@L3
    Format settings                          : CABAC / 4 Ref Frames
    Format settings, CABAC                   : Yes
    Format settings, RefFrames               : 4 frames
    Codec ID                                 : avc1
    Codec ID/Info                            : Advanced Video Coding
    Duration                                 : 17 s 118 ms
    Bit rate                                 : 1 353 kb/s
    Width                                    : 468 pixels
    Height                                   : 356 pixels
    Display aspect ratio                     : 4:3
    Original display aspect ratio            : 16:10
    Frame rate mode                          : Constant
    Frame rate                               : 29.970 (30000/1001) FPS
    Color space                              : YUV
    Chroma subsampling                       : 4:2:0
    Bit depth                                : 8 bits
    Scan type                                : Progressive
    Bits/(Pixel*Frame)                       : 0.271
    Stream size                              : 2.76 MiB (87%)
    Writing library                          : x264 core 146 r2538 121396c
    Encoding settings                        : cabac=1 / ref=3 / deblock=1:0:0 / analyse=0x3:0x133 / 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=12 / 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=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=2 / keyint=250 / keyint_min=25 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=crf / mbtree=1 / crf=20.0 / qcomp=0.60 / qpmin=10 / qpmax=51 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00
    Codec configuration box                  : avcC
    
    Audio
    ID                                       : 2
    Format                                   : MPEG Audio
    Format version                           : Version 1
    Format profile                           : Layer 2
    Codec ID                                 : mp4a-6B
    Duration                                 : 17 s 184 ms
    Bit rate mode                            : Constant
    Bit rate                                 : 192 kb/s
    Channel(s)                               : 2 channels
    Sampling rate                            : 48.0 kHz
    Compression mode                         : Lossy
    Stream size                              : 402 KiB (12%)
    Default                                  : Yes
    Alternate group                          : 1
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  2. Member
    Join Date
    Mar 2008
    Location
    United States
    Search Comp PM
    Re-open it and set it up like this:
    Image Attached Thumbnails Click image for larger version

Name:	screen.jpg
Views:	20
Size:	107.3 KB
ID:	49031  

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  3. Member
    Join Date
    Oct 2017
    Location
    Toronto, ON
    Search Comp PM
    Worked like a charm! Thank you.
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