Most modern YouTube videos use VP9/AV1, so the old bestvideo[ext=mp4][vcodec^=avc1] filter always failed and fell through to format codes 22/18 (720p/360p). --merge-output-format mp4 handles the container; no need to restrict codec. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
24 KiB
24 KiB