Raphaël G. Git Repositories - youtubedl/blob - debian/NEWS

   1 youtube-dl (2014.02.17-1~0.gbp848723) UNRELEASED; urgency=medium
   2
   3   There are too many goodies that this new release brings us,
   4   including that it is possible to combine/merge/multiplex audio and
   5   video formats that Youtube now offers separately (See the previous
   6   notes about Youtube using DASH for video and audio).
   7
   8   Now, if you want a 480p video in H.264 format, High profile, with
   9   128kbps AAC audio (this used to be Youtube's format 35), you can
  10   specify format `-f 135+140` on the command-line, and so on. Only your
  11   imagination is the limit.
  12
  13  -- Rogério Brito <rbrito@ime.usp.br>  Mon, 17 Feb 2014 18:24:20 -0300
  14
  15 youtube-dl (2013.10.23-1) unstable; urgency=low
  16
  17   From http://cynic.cc/blog/posts/2013-10-23-assorted_news/:
  18
  19    [13]Some people may have noticed, others may not, but when downloading
  20    videos from Youtube, they apparently are getting more aggressive with
  21    the use of [14]Dynamic Adaptive Streaming over HTTP (also called DASH)
  22    and, as a result, some (perhaps going to be all in the near future?) of
  23    the videos may not be available in the resolution/formats that you used
  24    to like (like me, with format number 35).
  25
  26    By the way, one thing that is interesting with youtube videos provided
  27    via DASH is that they are available in different streams: one for the
  28    video and another for the audio.
  29
  30    What does this mean in practical terms for users of youtube-dl? Well,
  31    if you wanted to download videos in resolutions like the 480p (format
  32    35) that I mentioned, then you will probably have to change your way of
  33    doing things, until a more automated solution is in place.
  34
  35    You will have to download both the audio and the video and, then,
  36    "combine" them (that is, multiplex them) to create one "normal" video
  37    file with both the audio and the video. I usually do this via:
  38
  39    ffmpeg -i audio.m4a -i video.mp4 -vcodec copy -acodec copy combined.mp4
  40
  41    If you prefer having a Matroska container instead of an mp4 container
  42    (which, BTW, results in smaller muxing overhead), then you can use the
  43    command line:
  44
  45    mkvmerge -o combined.mkv audio.m4a video.mp4
  46
  47    Oh, those m4a and mp4 extensions are a new addition that [15]I just
  48    sent upstream (in the past, both would have been named with an
  49    extension of mp4).
  50
  51    As, an aside, I like formats 135 for video and 140 for audio, for the
  52    reasons that I mentioned in a comments to issue 1612:
  53
  54      Otherwise, to download 480p videos (which I do for lectures and so
  55      on with other projects of mine, like edx-dl) I have to call
  56      youtube-dl twice: once for format 135 and another for format 140,
  57      since the old (?) format 35 files are much smaller than the lower
  58      resolution 360p files (due to the former being encoded in High
  59      profile vs. the latter being encoded in Constrained Baseline
  60      profile).
  61
  62    While this is unfortunate for some, this is a good thing for others: I
  63    once had a blind user of youtube-dl asking me if he could avoid
  64    downloading the whole video just to extract the audio, so that he save
  65    on bandwidth. Well, now this is possible.
  66
  67
  68   13. https://github.com/rg3/youtube-dl/issues/1612
  69   14. https://en.wikipedia.org/wiki/Dynamic%20Adaptive%20Streaming%20over%20HTTP
  70   15. https://github.com/rg3/youtube-dl/pull/1622
  71
  72  -- Rogério Brito <rbrito@ime.usp.br>  Fri, 25 Oct 2013 01:25:41 -0200
  73
  74 youtube-dl (2010.07.22-1) unstable; urgency=medium
  75
  76   The upstream author has removed support for the -b ("best format") and
  77   the -d ("high def") command line options.
  78
  79   The behavior now is to download the best quality for each video.
  80   If you experience a problem with youtube-dl downloading videos that are
  81   too large, you should consider using the --max-quality option to limit
  82   which format to use.
  83
  84   The list of formats (in decreasing quality) can be found with:
  85
  86       grep "available_formats =" /usr/bin/youtube-dl
  87
  88  -- Rogério Brito <rbrito@ime.usp.br>  Thu, 22 Jul 2010 19:07:03 -0300
  89