On Mon, 16 Aug 2021 23:29:22 +0200, "Carlos E. R." <robin.lis...@telefonica.net> wrote:
>Google: download youtube video cut with ffmpeg > ><https://ostechnix.com/download-a-portion-of-youtube-video-with-youtube-dl-and-ffmpeg/> > >$ youtube-dl --external-downloader ffmpeg --external-downloader-args >"-ss 00:01:00.00 -to 00:02:00.00" -f best >"https://www.youtube.com/watch?v=dc7I-i7sPrg"; > >or > >$ ffmpeg -ss 00:01:00 -to 00:02:00 -i "$(youtube-dl -f best --get-url >'https://www.youtube.com/watch?v=dc7I-i7sPrg')" -c:v copy -c:a copy >kiosk.mp4 > Thanks for your suggestions! First I tried the second one as follows: ffmpeg -ss 06:06:00 -to 06:10:00 -i "$(youtube-dl -f 93 --get-url 'https://www.youtube.com/watch?v=DM-I6UugaFs')" -c:v copy -c:a copy testpastvideo.mp4 I assumed that it would start recording 6h 6m from the start of the stream (which is 12 hours long) and last until 6h 10m into the stream (duration 4 minutes). But in fact it recorded from current time and did not stop after the 4 minutes so I had to manually stop it using the keyboard q key. So this attempt did not go into the past as requested. Then I tried this: youtube-dl --external-downloader ffmpeg --external-downloader-args "-ss 06:06:00.00 -to 06:10:00.00" -f 93 "https://www.youtube.com/watch?v=DM-I6UugaFs"; -o testpastvideo3.mp4 Again the recording did not stop after 4 minutes but had to be manually stopped, this time using Ctrl-C (since youtube-dl was the main program). This also recorded from current time rather than from the beginning of the stream plus the 6 hour offset So both commands failed to start in the past of the stream and did not stop after the requested duration. Did I misunderstand the arguments to use to record starting at an earlier time? It is my understanding that youtube-dl is unable to start downloading from an earlier than current time. Streamlink used to be able to do this but that stopped working some time ago (maybe spring 2020). It is unfortunate since both FireFox and Chrome are able to view the streams at earlier times, whereas download seems impossible. That is why I asked here if maybe ffmpeg itself would be able to... -- Bo Berglund Developer in Sweden _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
