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一个9:16的视频，A上传到sp.hydee.cn平台，所有用户看这个视频都发现，这个视频在预览和播放的时候被拉伸变形了。
A将这个视频发送到sp.hydee.cn的技术人员，技术人员上传到sp.hydee.cn的时候却都是正常的，技术人员说可能跟网速有关。
PS C:\Users\Telegramr> D:\ffmpeg\bin\ffmpeg.exe -i E:\a.mp4
ffmpeg version 2024-11-25-git-04ce01df0b-full_build-www.gyan.dev Copyright (c) 2000-2024 the FFmpeg developers
built with gcc 14.2.0 (Rev1, Built by MSYS2 project)
configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libaribb24 --enable-libaribcaption --enable-libdav1d --enable-libdavs2 --enable-libopenjpeg --enable-libquirc --enable-libuavs3d --enable-libxevd --enable-libzvbi --enable-libqrencode --enable-librav1e --enable-libsvtav1 --enable-libvvenc --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxeve --enable-libxvid --enable-libaom --enable-libjxl --enable-libvpx --enable-mediafoundation --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libharfbuzz --enable-liblensfun --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-dxva2 --enable-d3d11va --enable-d3d12va --enable-ffnvcodec --enable-libvpl --enable-nvdec --enable-nvenc --enable-vaapi --enable-libshaderc --enable-vulkan --enable-libplacebo --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libcodec2 --enable-libilbc --enable-libgsm --enable-liblc3 --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint
libavutil 59. 47.101 / 59. 47.101
libavcodec 61. 25.103 / 61. 25.103
libavformat 61. 9.100 / 61. 9.100
libavdevice 61. 4.100 / 61. 4.100
libavfilter 10. 6.101 / 10. 6.101
libswscale 8. 12.100 / 8. 12.100
libswresample 5. 4.100 / 5. 4.100
libpostproc 58. 4.100 / 58. 4.100
[mov,mp4,m4a,3gp,3g2,mj2 @ 000002213dca8380] Unknown cover type: 0x1.
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'E:\a.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
creation_time : 2022-09-30T21:54:22.000000Z
Hw : 1
:
bitRate : 6000000
:
maxrate : 6000000
:
te_is_reencode : 1
:
encoder : Lavf58.76.100
Duration: 00:05:48.88, start: 0.000000, bitrate: 4626 kb/s
Stream #0:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 1080x1920 [SAR 1:1 DAR 9:16], 4478 kb/s, 25 fps, 25 tbr, 1000k tbn (default)
Metadata:
creation_time : 2022-09-30T21:54:22.000000Z
handler_name : VideoHandler
vendor_id : [0][0][0][0]
Stream #0:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 145 kb/s (default)
Metadata:
creation_time : 2022-09-30T21:54:22.000000Z
handler_name : SoundHandler
vendor_id : [0][0][0][0]
根据DeepSeek的方法进行了检测，得出以下几点
1、视频元素据没有问题
2、网站平台没有进行编码转换
3、video标签参数是object-fit: contain; /* 保持比例，不拉伸 */
现在不知道问题出在哪里了，有这方面经验的大佬吗？指点一下，谢谢了。
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