Avidemux: can't set output aspect ratio to 16:9 (output file is always 4:3)

9th May 2019 16:53 #1

Member

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