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2016年3月29日 · @s4y youtube-dl will indeed transcode when it needs to (--audio-format option) but you are right here: it should not be the case with that line, because you are forcing youtube-dl to download two files (bestaudio[ext=mp4] and bestvideo[ext=m4a]) that have the same kind of container in common (mp4), so whatever their content, when remuxing it, they will be stacked in another mp4 without any ...
2015年9月18日 · # function that uses youtube-dl along with ffmpeg to capture a portion of a yt video # $1 - youtube URL # $2 - start position in hh:mm:ss.msms format (ms=miliseconds) # $3 - final position in hh:mm:ss.msms format (ms=miliseconds) # $4 - output file name
2020年8月19日 · Youtube's MP4 videos are encoded using the H.264/AVC codec. Youtube's WEBM videos are usually encoded using the VP9 codec which is a much more efficient and newer codec which allows to compress video better (which means a smaller file size) while providing a perceptually better image quality.
2019年7月4日 · How can I go back through and download just the info-json files for all the videos without re-downloading the videos themselves? I've been using the -a option to keep track of what videos I've already archived, and thus I can easily use that file as a list of all the videos I need to download the info-json file for.
2021年5月26日 · So, videos I download from YouTube are usually transcoded via ffmpeg (I’m not enough of a an A/V person to know if the video track itself is being converted, or just being muxed into a new container format, but I can say it takes a while) before ending up as MP4.
2019年2月18日 · Here I am using following options: -f 22 for video format. -c for resume download. -i for ignore errors. -o for output file name. -s 200000 for limit download speed to 200KB. However, instead of downloading the video at 200KB and saving it as "interview.mp4", it is giving following error: ERROR: fixed output name but more than one file to download.
A way to keep the separately downloaded audio and video files (which will be received by default since April 2015 and version 2015.04.26) is provided through the -k, --keep-video option, like. youtube-dl -k https://...your_url. However, this will still merge the files in the end leaving you with 3 files. If you want to avoid the merging and ...
2022年4月4日 · Or you should overlay the split video (newVideo.mp4) into a background video which should have a black background, 60 seconds duration, and a 9/16 ratio. This is ffmpeg command to do the magic ;) I used a full HD video and I overlaid the video in the center.
2014年10月9日 · I found this trick which allows video to be played in an xterm in the O'Reilly articled titled: Watch Videos in ASCII Art. $ xterm -fn 5x7 -geometry 250x80 -e "mplayer -vo aa:driver=curses j.mp4. The above results in a xterm window being opened where the video plays.
2023年8月4日 · If I download a video using youtube-downloader I can watch the part file while downloading (in my case using mpv). Suppose I cannot or don't want to select a format containing both video and audio then the audio in the part file is missing because it is downloaded and merged after the video download is complete.
