[FFmpeg-user] DAR/SAR
Steve Zemlicka
stevezemlicka at gmail.com
Wed Mar 1 01:42:40 EET 2023
Sorry, I just saw that you already ran an ffprobe. If you run ffprobe
again and look for Stream #0:0, does yours report the DAR as 4:3? If so,
perhaps you were looking at Stream #0:2 when you were seeing the DAR
17:25. If not, then perhaps there's something else going on with your
build. If that's the case, let us know which version you're running
(usually reported at the top of ffprobe/ffmpeg output)
On Tue, Feb 28, 2023 at 5:34 PM Steve Zemlicka <stevezemlicka at gmail.com>
wrote:
> if you run ffprobe [filename], you'll notice that it does indicate 4:3 for
> stream#0:0
> Stream #0:0[0x1](eng): Video: h264 (High) (avc1 / 0x31637661),
> yuv420p(progressive), 640x480, 792 kb/s, SAR 1:1 DAR 4:3, 23.98 fps, 23.98
> tbr, 23981 tbn (default)
>
> When dealing with aspect ratios, it's always good to do a ffprobe to
> examine the details of how ffmpeg will interpret/recognize the files. The
> entire ffprobe for that file is as follows:
>
> ffprobe version n5.1.2 Copyright (c) 2007-2022 the FFmpeg developers
> built with gcc 12.2.0 (GCC)
> configuration: --prefix=/usr --disable-debug --disable-static
> --disable-stripping --enable-amf --enable-avisynth --enable-cuda-llvm
> --enable-lto --enable-fontconfig --enable-gmp --enable-gnutls --enable-gpl
> --enable-ladspa --enable-libaom --enable-libass --enable-libbluray
> --enable-libbs2b --enable-libdav1d --enable-libdrm --enable-libfreetype
> --enable-libfribidi --enable-libgsm --enable-libiec61883 --enable-libjack
> --enable-libmfx --enable-libmodplug --enable-libmp3lame
> --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libopenjpeg
> --enable-libopus --enable-libpulse --enable-librav1e --enable-librsvg
> --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh
> --enable-libsvtav1 --enable-libtheora --enable-libv4l2 --enable-libvidstab
> --enable-libvmaf --enable-libvorbis --enable-libvpx --enable-libwebp
> --enable-libx264 --enable-libx265 --enable-libxcb --enable-libxml2
> --enable-libxvid --enable-libzimg --enable-nvdec --enable-nvenc
> --enable-opencl --enable-opengl --enable-shared --enable-version3
> --enable-vulkan
> libavutil 57. 28.100 / 57. 28.100
> libavcodec 59. 37.100 / 59. 37.100
> libavformat 59. 27.100 / 59. 27.100
> libavdevice 59. 7.100 / 59. 7.100
> libavfilter 8. 44.100 / 8. 44.100
> libswscale 6. 7.100 / 6. 7.100
> libswresample 4. 7.100 / 4. 7.100
> libpostproc 56. 6.100 / 56. 6.100
> [mov,mp4,m4a,3gp,3g2,mj2 @ 0x557a198b11c0] stream 0, timescale not set
> Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Hallelujah (1929)._edit.mp4':
> Metadata:
> major_brand : isom
> minor_version : 512
> compatible_brands: isomiso2avc1mp41
> iTunEXTC : mpaa|NR|600|
> iTunMOVI : <?xml version="1.0" encoding="UTF-8"?>
> : <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN"
> "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
> : <plist version="1.0">
> : <dict>
> : <key>directors</key>
> : <array>
> : <dict>
> : <key>name</key>
> : <string>King Vidor</string>
> : </dict>
> : </array>
> : <key>producers</key>
> : <array>
> : <dict>
> : <key>name</key>
> : <string>Irving Thalberg</string>
> : </dict>
> : </array>
> : <key>screenwriters</key>
> : <array>
> : <dict>
> : <key>name</key>
> : <string>Wanda Tuchock</string>
> : </dict>
> : </array>
> : <key>studio</key>
> : <string>Metro-Goldwyn-Mayer</string>
> : </dict>
> : </plist>
> :
> title : Hallelujah
> artist : Victoria Spivey
> genre : Drama
> date : 1929-08-20
> description : Sharecroppers Zeke and Spunk Johnson sell their
> family's portion of the cotton crop for $100. They are promptly cheated out
> of the money by the shill Chick (Nina Mae McKinney), in collusion with her
> gambling-hustler boyfriend, Hot Shot. Spunk is murdered
> synopsis : Sharecroppers Zeke and Spunk Johnson sell their
> family's portion of the cotton crop for $100. They are promptly cheated out
> of the money by the shill Chick (Nina Mae McKinney), in collusion with her
> gambling-hustler boyfriend, Hot Shot. Spunk is murdered
> encoder : Lavf58.20.100
> hd_video : 0
> media_type : 9
> Duration: 01:39:51.41, start: 0.000000, bitrate: 869 kb/s
> Chapters:
> Chapter #0:0: start 0.000000, end 5991.000000
> Metadata:
> title : Chapter 1
> Stream #0:0[0x1](eng): Video: h264 (High) (avc1 / 0x31637661),
> yuv420p(progressive), 640x480, 792 kb/s, SAR 1:1 DAR 4:3, 23.98 fps, 23.98
> tbr, 23981 tbn (default)
> Metadata:
> handler_name : VideoHandler
> vendor_id : [0][0][0][0]
> Stream #0:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz,
> stereo, fltp, 65 kb/s (default)
> Metadata:
> handler_name : SoundHandler
> vendor_id : [0][0][0][0]
> Stream #0:2[0x0]: Video: mjpeg (Baseline), yuvj420p(pc,
> bt470bg/unknown/unknown), 680x1000 [SAR 1:1 DAR 17:25], 90k tbr, 90k tbn
> (attached pic)
> Stream #0:3[0x3](und): Data: bin_data (text / 0x74786574)
> Metadata:
> creation_time : 2023-02-18T02:49:07.000000Z
>
> On Tue, Feb 28, 2023 at 12:22 PM Jim Julian via ffmpeg-user <
> ffmpeg-user at ffmpeg.org> wrote:
>
>> I've just finished a dialogue with MediaInfo and there seems to be a
>> difference in the Linux and Windows versions. I also tried using WSL and
>> bash without success. The DAR/SAR are still reported incorrectly.
>> 680x1000 [SAR 1:1 DAR 17:25], where the movie is actually 640x480 and
>> DAR=4:3.
>>
>> For anyone interested in examing the movie (636Mb) , here's a dropbox
>> link to the movie:
>> https://www.dropbox.com/s/d66qlltgnpnru0d/Hallelujah%20%281929%29._edit.mp4?dl=0
>>
>>
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>
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