]> Raphaël G. Git Repositories - youtubedl/blob - debian/NEWS
Update changelog.
[youtubedl] / debian / NEWS
1 youtube-dl (2013.10.23-1) unstable; urgency=low
2
3 From http://cynic.cc/blog/posts/2013-10-23-assorted_news/:
4
5 [13]Some people may have noticed, others may not, but when downloading
6 videos from Youtube, they apparently are getting more aggressive with
7 the use of [14]Dynamic Adaptive Streaming over HTTP (also called DASH)
8 and, as a result, some (perhaps going to be all in the near future?) of
9 the videos may not be available in the resolution/formats that you used
10 to like (like me, with format number 35).
11
12 By the way, one thing that is interesting with youtube videos provided
13 via DASH is that they are available in different streams: one for the
14 video and another for the audio.
15
16 What does this mean in practical terms for users of youtube-dl? Well,
17 if you wanted to download videos in resolutions like the 480p (format
18 35) that I mentioned, then you will probably have to change your way of
19 doing things, until a more automated solution is in place.
20
21 You will have to download both the audio and the video and, then,
22 "combine" them (that is, multiplex them) to create one "normal" video
23 file with both the audio and the video. I usually do this via:
24
25 ffmpeg -i audio.m4a -i video.mp4 -vcodec copy -acodec copy combined.mp4
26
27 If you prefer having a Matroska container instead of an mp4 container
28 (which, BTW, results in smaller muxing overhead), then you can use the
29 command line:
30
31 mkvmerge -o combined.mkv audio.m4a video.mp4
32
33 Oh, those m4a and mp4 extensions are a new addition that [15]I just
34 sent upstream (in the past, both would have been named with an
35 extension of mp4).
36
37 As, an aside, I like formats 135 for video and 140 for audio, for the
38 reasons that I mentioned in a comments to issue 1612:
39
40 Otherwise, to download 480p videos (which I do for lectures and so
41 on with other projects of mine, like edx-dl) I have to call
42 youtube-dl twice: once for format 135 and another for format 140,
43 since the old (?) format 35 files are much smaller than the lower
44 resolution 360p files (due to the former being encoded in High
45 profile vs. the latter being encoded in Constrained Baseline
46 profile).
47
48 While this is unfortunate for some, this is a good thing for others: I
49 once had a blind user of youtube-dl asking me if he could avoid
50 downloading the whole video just to extract the audio, so that he save
51 on bandwidth. Well, now this is possible.
52
53
54 13. https://github.com/rg3/youtube-dl/issues/1612
55 14. https://en.wikipedia.org/wiki/Dynamic%20Adaptive%20Streaming%20over%20HTTP
56 15. https://github.com/rg3/youtube-dl/pull/1622
57
58 -- Rogério Brito <rbrito@ime.usp.br> Fri, 25 Oct 2013 01:25:41 -0200
59
60 youtube-dl (2010.07.22-1) unstable; urgency=medium
61
62 The upstream author has removed support for the -b ("best format") and
63 the -d ("high def") command line options.
64
65 The behavior now is to download the best quality for each video.
66 If you experience a problem with youtube-dl downloading videos that are
67 too large, you should consider using the --max-quality option to limit
68 which format to use.
69
70 The list of formats (in decreasing quality) can be found with:
71
72 grep "available_formats =" /usr/bin/youtube-dl
73
74 -- Rogério Brito <rbrito@ime.usp.br> Thu, 22 Jul 2010 19:07:03 -0300
75