remux to webm or mkv

[chpio]

What is the purpose of your issue?

• Bug report (encountered problems with youtube-dl)
• Site support request (request for adding support for a new site)
• Feature request (request for a new functionality)
• Question
• Other

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Description of your issue, suggested solution and other information

Is it possible to convert the output file to webm if possible (vp9/vp8+opus/vorbis) or else to mkv? Not working "alternatives":

• -f "webm/mkv" is just a filter for the input streams and
• --merge-output-format allows only one option.

[dstftw]

This is the default behavior, it outputs original container if possible or uses mkv otherwise.

[chpio]

it outputs original container

Yes, that's why im asking for this feature.

[joetex72]

You can try setting the output container to mkv or manually copying to mkv with ffmpeg.

[chpio]

manually copying to mkv with ffmpeg.

that's what im doing right now (using mkvtoolnix gui to convert it to mkv). that's kind of a workaround, but it's working. i just wondered if there is a more convenient way to do that.

[yan12125]

@chpio could you paste an example video for what's your expectation and the actual results?