x264 upgrade has broken ffmpeg

[inducer]

If you currently install ffmpeg=4.0, the resulting binary (on Linux) gives:

ffmpeg: error while loading shared libraries: libx264.so.138: cannot open shared object file: No such file or directory

It seems that the packages insufficiently version the x264 dependency.

[sdvillal]

This should be solved once #48 is merged, at least for 4.0. Until then, a workaround is to downgrade x264 in your environment.

[sdvillal]

#48 is merged now.

[victorhcm]

In case you had the same issue, here's the clean command:

# ffmpeg 3.4.1
conda install ffmpeg x264=20131218 -c conda-forge

# ffmpeg 4
conda install x264=='1!152.20180717' ffmpeg=4.0.2 -c conda-forge

[sdvillal]

@victorhcm x264=='1!152.*' should also work with the latest build of ffmpeg 3.4.1, we worked hard to ensure that is the case. Try this:

$ conda create -n testfff conda-forge::ffmpeg=3.4.1
$ conda activate testfff

$ conda list | grep -E "ffm|x26"
# ffmpeg                    3.4.1                hf82bc7d_4    conda-forge
# x264                      1!152.20180717       h470a237_0    conda-forge

$ ffmpeg 
# works!

I actually would discourage installing x264=20131218

[Flamefire]

@sdvillal I cannot confirm this:

$ conda list | grep -E "ffm|x26"
ffmpeg                    3.4.1                         0    conda-forge
x264                      1!152.20180806       h14c3975_0    conda-forge

$ ffmpeg 
ffmpeg: error while loading shared libraries: libx264.so.138: cannot open shared object file: No such file or directory

[zhongyi-zhou]

@victorhcm
I have tried your code for two conda envs.
One works but the other does not.

The code continuously stuck here, at least for half an hour:

[zhongyi-zhou]

@victorhcm
I have tried your code for two conda envs.
One works but the other does not.

The code continuously stuck here, at least for half an hour:

Problem solved by

conda update ffmpeg

[Maltimore]

I just had a similar problem to the one stated in the first item in this thread.
It turned out that my ffmpeg was actually installed from the pytorch channel, not conda-forge. After installing from conda-forge with
conda install -c conda-forge ffmpeg
it worked. Just leaving this here in case someone else finds it useful.

[vincentfpgarcia]

Using latest package versions works fine too:

conda install -c conda-forge x264=='1!161.3030' ffmpeg=4.3.2