今天使用 yt-dlp 下载视频时，遇到一个报错
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[youtube] Extracting URL: https://youtu.be/_dLLIjKz9MY
[youtube] _dLLIjKz9MY: Downloading webpage
...........................................
[Merger] Merging formats into "Fear in Tech - Titus Winters - Keynote Meeting C++ 2024 [_dLLIjKz9MY].mp4"
ERROR: Postprocessing: Stream #1:0 -> #0:1 (copy)
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查找一遍，发现这个是因为 yt-dlp 与 ffmpeg 版本冲突导致的，导致yt-dlp --merge-output-format mp4 无法合成 mp4 格式。因此需要升级 ffmpeg。
升级 yasm
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## update yasm
wget https://www.tortall.net/projects/yasm/releases/yasm-1.3.0.tar.gz
tar -xvf yasm-1.3.0.tar.gz
cd yasm-1.3.0
./configure
make -j
make install
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升级 ffmpeg
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wget https://ffmpeg.org/releases/ffmpeg-7.0.1.tar.xz
tar -xvf ffmpeg-7.0.1.tar.xz
cd ffmpeg-7.0.1
./configure
make install
./ffmpeg --version
whereis ffmpeg
ll /usr/bin/ffmpeg
cp ffmpeg* ffprobe /usr/bin/
ffmpeg --version
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成功下载
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[youtube] Extracting URL: https://www.youtube.com/watch?v=nXcswVW0-Wk
[youtube] nXcswVW0-Wk: Downloading webpage
[youtube] nXcswVW0-Wk: Downloading ios player API JSON
[youtube] nXcswVW0-Wk: Downloading mweb player API JSON
[youtube] nXcswVW0-Wk: Downloading m3u8 information
[info] nXcswVW0-Wk: Downloading 1 format(s): 616+251
[hlsnative] Downloading m3u8 manifest
[hlsnative] Total fragments: 655
[download] Destination: Herb Sutter - Peering forward C++’s next decade [nXcswVW0-Wk].f616.mp4
[download] 100% of 441.60MiB in 00:04:40 at 1.57MiB/s
[download] Destination: Herb Sutter - Peering forward C++’s next decade [nXcswVW0-Wk].f251.webm
[download] 100% of 53.14MiB in 00:00:05 at 10.23MiB/s
[Merger] Merging formats into "Herb Sutter - Peering forward C++’s next decade [nXcswVW0-Wk].mp4"
Deleting original file Herb Sutter - Peering forward C++’s next decade [nXcswVW0-Wk].f616.mp4 (pass -k to keep)
Deleting original file Herb Sutter - Peering forward C++’s next decade [nXcswVW0-Wk].f251.webm (pass -k to keep)
[Metadata] Adding metadata to "Herb Sutter - Peering forward C++’s next decade [nXcswVW0-Wk].mp4"
[1] + done yt-dlp -f 'bv[height<=1080]+ba/b[height<=1080]' --embed-metadata mp4 --proxy
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