Indigo on trusty: how to handle ffmpeg dependency

asked 2014-04-01 06:16:05 -0500

Fabien Spindler
126 ●5 ●8 ●10

My project depends on libavcodec-dev, libavformat-dev, libavutil-dev, libswscale-dev. To this end for groovy and hydro in package.xml I added a build and run dependency on ffmpeg that brings from rosdep the expected dependencies:

In https://github.com/ros/rosdistro/blob... there is:

ffmpeg:
  arch: [ffmpeg]
  debian: [ffmpeg, libavcodec-dev, libavformat-dev, libavutil-dev, libswscale-dev]
  fedora: [ffmpeg-devel]
  gentoo:
    portage:
      packages: [media-plugins/ffmpeg]
  macports: [ffmpeg]
  ubuntu: [ffmpeg, libavcodec-dev, libavformat-dev, libavutil-dev, libswscale-dev]

Now for indigo it seems that the ffmpeg debian package is not available for trusty.

We cannot change rosdep/base.yaml to the following (even if it shall work for trusty):

  debian: [libavcodec-dev, libavformat-dev, libavutil-dev, libswscale-dev]
  ubuntu: [libavcodec-dev, libavformat-dev, libavutil-dev, libswscale-dev]

Shall I introduce new entries for each debian package ?

libavcodec-dev:
  debian: [libavcodec-dev]
  ubuntu: [libavcodec-dev]

libavformat-dev:
  debian: [libavformat-dev]
  ubuntu: [libavformat-dev]

libavutil-dev:
  debian: [libavutil-dev]
  ubuntu: [libavutil-dev]

libswscale-dev:
  debian: [libswscale-dev]
  ubuntu: [libswscale-dev]

Any ideas ? Thanks

Fabien

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answered 2014-04-01 08:55:05 -0500

ahendrix

47576 ●179 ●367 ●662 http://namniart.com/

It looks like ffmpeg has been deprecated in Ubuntu for a while, and it's being replaced in 14.04 with lbav-tools according to http://askubuntu.com/questions/432542... .

You should probably either:

declare a new rosdep called avtools or similar, which contains most of the same things that ffmpeg contained. This may introduce extra maintenance for packages that will have to switch their API to depending on avtools.
update the existing ffmpeg dependency to silently depend on avtools on newer versions of Ubuntu. This will probably become very brittle as the avtools and ffmpeg command-line tools and APIs diverge in upcoming Ubuntu releases.

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answered 2014-04-01 08:12:23 -0500

tfoote

58457 ●128 ●550 ●526 http://www.ros.org/

updated 2014-04-01 08:44:28 -0500

ahendrix

47576 ●179 ●367 ●662 http://namniart.com/

No we shouldn't create separate rules for each package, but a different rule for different versions of ubuntu.

We'll need to add a updated rule for trusty and copies for all the older versions of ubuntu. Along these lines.

ffmpeg:
  ubuntu:
    precise: [ ffmpeg, libavcodec-dev, libavformat-dev, libavutil-dev, libswscale-dev]
    quantal: [ ffmpeg, libavcodec-dev, libavformat-dev, libavutil-dev, libswscale-dev]

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