Allow user to force audio codec to be used instead of relying the default one

[Kazhuu]

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Overview

Regarding this issue of mine earlier. Would it be possible to expose field AvFormatContext::audio_codec_id for user to force specific audio codec?

Existing FFmpeg API

Documentation of the field here.

Expected PyAV API

Maybe add this to av.open() to be optional argument.

Example:

av.open('alsa-device', format='alsa', audio_codec='pcm_s32le')

I could also take this one and make contribution to this awesome library if this is considered something needed in general. Any thoughts?

[paulhobbel]

Any news on the implementation of this?

[Kazhuu]

Sorry but I have been busy with so many other things and haven't have time/interest for this one at the moment. Maybe someone else can give this a go instead. I tried to start implementing this but then soon realized that there are so many available codecs that left me wondering should all them be implemented or just selected few.

[paulhobbel]

I'm currently trying out your solution but am failing to build PyAV on my raspberry pi. Do you have any tips on how I can build PyAV?

[Kazhuu]

I don't remember the steps out of my head but I think I was needing this package for one of my projects. I cloned it to my project and installed the package from there to my python virtual environment using pipenv install -e ext/PyAV. Then I just modified the sources in place. Of course you need to install Cython and other required packages to build the package. From readme the requirements are installed with pip install --upgrade -r tests/requirements.txt. Hope these helps.

[Kazhuu]

@paulhobbel I made a PR of this here if you are still interested of this.

[github-actions[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[github-actions[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[Kazhuu]

I've a holiday coming weeks I could take a look at this.

[github-actions[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[Kazhuu]

ping

[github-actions[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[Kazhuu]

Is this still valid?