Export frames or subclip between two markers

[gp123456]

Hi!

I'm currently developing an extension using extendscript and i want to export frames or subclip between two markers.

I read the premiere scripting guide and didn't found any method that allows me to navigate the frames of a clip.

Is there any way that to get the next frame of a marker? Or the clip(s) between two markers?

[Bruce Bullis · Accepted solution]

You don't need to navigate frames of a clip, to transcode or sub clip a time range from source media.

transcode() and createSubclip() both take in and out point params, which you can get from your markers' start and end times.

[gp123456]

Thanks bbb_999 for the answer!

What's the specific projectItem where i should call the createSubclip() method?

I'm trying to call it on the first children of the rootItem but it says "undefined is not an object".

[Bruce Bullis]

What's the specific projectItem where i should call the createSubclip() method?

Re-reading above, I think you're talking about a range within a sequence, not footage. If that's the case, you'd want to create a sub-sequence, not a sub-clip. Here's how:

https://github.com/Adobe-CEP/Samples/blob/f7d41a21258d1b8a577183cd59216e7ca9abb74f/PProPanel/jsx/PPR...

To determine the range to export; find the start and end times of the appropriate sequence markers. Here's some sequence marker accessing code:

https://github.com/Adobe-CEP/Samples/blob/f7d41a21258d1b8a577183cd59216e7ca9abb74f/PProPanel/jsx/PPR...


So, if you set the sequence's in and out points to match the start/end time(s) of appropriate markers, you can call encodeSequence() telling it to respect the sequence in/outs.

https://github.com/Adobe-CEP/Samples/blob/f7d41a21258d1b8a577183cd59216e7ca9abb74f/PProPanel/jsx/PPR...

[gp123456]

I want to create a subclip from only one video track and one audio track.

Once i have this clip in a projectItem var how do i output it to mp4?

[Bruce Bullis]

I want to create a subclip from only one video track and one audio track.

By 'subclip', do you mean a new piece of self-contained media, or do you mean a PPro sub-clip (a reference to pre-existing media)?

Once i have this clip in a projectItem var how do i output it to mp4?

PProPanel shows how to transcode a projectItem.

https://github.com/Adobe-CEP/Samples/blob/f7d41a21258d1b8a577183cd59216e7ca9abb74f/PProPanel/jsx/PPR...

[gp123456]

By subclip i mean a new piece of self-contained media created from clips in the timeline.

When i call the encodeProjectItem method how do i specify the file type i want? in this case specific, mp4.

Thanks

[Bruce Bullis]

To create a subclip from a sequence, but with only one audio and video track enabled, your panel would

• Disable ('mute') the tracks you don't want
• Set the sequence's in and out points to identify the range you want
• Call encodeSequence(), specifying app.encoder.ENCODE_IN_TO_OUT as the range specifier
• Use importFiles() to bring the resultant media into the project

When i call the encodeProjectItem method how do i specify the file type i want?

By providing the path to an output preset (.epr file) associated with the correct file type.