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diff --git a/content/posts/manually-fixing-malformed-aac-bitstreams.md b/content/posts/manually-fixing-malformed-aac-bitstreams.md new file mode 100644 index 0000000..120a1aa --- /dev/null +++ b/content/posts/manually-fixing-malformed-aac-bitstreams.md @@ -0,0 +1,16 @@ +--- +title: "Manually fixing malformed AAC bitstreams" +date: 2019-10-22T09:21:00 +tags: ["formats", "guides", "media", "snippets", "software", "windows"] +--- + +Recently while running `youtube-dl` on Windows, `ffmpeg` wasn't found in `%PATH%`, so it was unable to automatically fix the AAC bitstream. The file will play fine, but in the interest of completeness I still wanted this to be applied to my new files. + +Not wanting to alter my path variable for a one-off fix, I investigated the source code a little and found the `FFmpegFixupM3u8PP` [function here](https://github.com/ytdl-org/youtube-dl/blob/3089bc748c0fe72a0361bce3f5e2fbab25175236/youtube_dl/postprocessor/ffmpeg.py#L577). + +With that, you can now run: +``` +ffmpeg -i "input_file.mp4" -c copy -f mp4 -bsf:a aac_adtstoasc "output_file.mp4" +``` + +And you're done.
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