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VideoTrackSelection
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VideoTrackSelection

[Experimental]

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is an option that specifies the video tracks of interest.

Details

  • Typical settings include:
  • nonly process n^(th) track, remove other tracks
    {n1,n2,…}process the specified ni tracks, remove others
    Allprocess all tracks
    Automaticautomatically decide what tracks to process

Examples

open allclose all

Basic Examples  (1)Summary of the most common use cases

Export a Video object to an Ogg file without any video tracks:

In[1]:=1
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https://wolfram.com/xid/0v59uvvxm8exe-rs7nce
Out[2]=2

Check the number of exported video tracks:

In[3]:=3
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https://wolfram.com/xid/0v59uvvxm8exe-lstvsp
Out[3]=3

Scope  (2)Survey of the scope of standard use cases

Create a Video object with multiple video tracks:

In[7]:=7
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https://wolfram.com/xid/0v59uvvxm8exe-gzc2yt
Out[8]=8

Create a new video by selecting only a single track:

In[9]:=9
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https://wolfram.com/xid/0v59uvvxm8exe-1as7wy
Out[10]=10

Create a new video by selecting multiple tracks:

In[17]:=17
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https://wolfram.com/xid/0v59uvvxm8exe-m74cdz
Out[18]=18

Create a new video by selecting all tracks:

In[19]:=19
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https://wolfram.com/xid/0v59uvvxm8exe-rb25jy
Out[20]=20

Video objects need to have at least one video track:

In[21]:=21
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https://wolfram.com/xid/0v59uvvxm8exe-ipbswf

Create a Video object with multiple video tracks:

In[1]:=1
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https://wolfram.com/xid/0v59uvvxm8exe-r02h9i
Out[1]=1

Select two tracks out of the three present in the original video:

In[2]:=2
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https://wolfram.com/xid/0v59uvvxm8exe-6y5o48
Out[2]=2

Select one track from the two-track video. Notice that the selection is done in a relative manner. By selecting the first track, the third track of the original video is actually retrieved:

In[3]:=3
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https://wolfram.com/xid/0v59uvvxm8exe-d8c4t3
Out[3]=3

The track selection in the new video is limited to two:

In[4]:=4
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https://wolfram.com/xid/0v59uvvxm8exe-dv9tfc

Applications  (1)Sample problems that can be solved with this function

Create a Video object with multiple video tracks:

In[1]:=1
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https://wolfram.com/xid/0v59uvvxm8exe-p59722

All the Video functions will act on the first track of the input:

In[2]:=2
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https://wolfram.com/xid/0v59uvvxm8exe-ijcxji
Out[2]=2

To operate on a different track, use the VideoTrackSelection option:

In[4]:=4
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https://wolfram.com/xid/0v59uvvxm8exe-j24r1h
Out[4]=4
Wolfram Research (2020), VideoTrackSelection, Wolfram Language function, https://reference.wolfram.com/language/ref/VideoTrackSelection.html.
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Wolfram Research (2020), VideoTrackSelection, Wolfram Language function, https://reference.wolfram.com/language/ref/VideoTrackSelection.html.

Text

Wolfram Research (2020), VideoTrackSelection, Wolfram Language function, https://reference.wolfram.com/language/ref/VideoTrackSelection.html.

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Wolfram Research (2020), VideoTrackSelection, Wolfram Language function, https://reference.wolfram.com/language/ref/VideoTrackSelection.html.

CMS

Wolfram Language. 2020. "VideoTrackSelection." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/VideoTrackSelection.html.

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Wolfram Language. 2020. "VideoTrackSelection." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/VideoTrackSelection.html.

APA

Wolfram Language. (2020). VideoTrackSelection. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/VideoTrackSelection.html

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Wolfram Language. (2020). VideoTrackSelection. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/VideoTrackSelection.html

BibTeX

@misc{reference.wolfram_2025_videotrackselection, author="Wolfram Research", title="{VideoTrackSelection}", year="2020", howpublished="\url{https://reference.wolfram.com/language/ref/VideoTrackSelection.html}", note=[Accessed: 25-March-2025 ]}

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@misc{reference.wolfram_2025_videotrackselection, author="Wolfram Research", title="{VideoTrackSelection}", year="2020", howpublished="\url{https://reference.wolfram.com/language/ref/VideoTrackSelection.html}", note=[Accessed: 25-March-2025 ]}

BibLaTeX

@online{reference.wolfram_2025_videotrackselection, organization={Wolfram Research}, title={VideoTrackSelection}, year={2020}, url={https://reference.wolfram.com/language/ref/VideoTrackSelection.html}, note=[Accessed: 25-March-2025 ]}

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@online{reference.wolfram_2025_videotrackselection, organization={Wolfram Research}, title={VideoTrackSelection}, year={2020}, url={https://reference.wolfram.com/language/ref/VideoTrackSelection.html}, note=[Accessed: 25-March-2025 ]}