Time stretching

[Olivier Aubert]

You can use the scaletempo module to preserve the pitch of the audio
track. The video will be synchronized, since you will specify the whole
pipeline playback rate with the first parameter of gst_event_new_seek.

In other words, it is not the audio component that imposes its rate to
the pipeline. Instead, the scaletempo element will adjust the pitch
according to the playback rate of the pipeline.

Olivier

On Fri, 2012-05-11 at 15:10 -0400, Dave Mateer wrote:
> Anyone? Is there no such plugin?
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> <bump />
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> From: gstreamer-devel-bounces
> +dave_mateer=ntm.org at lists.freedesktop.org
> [mailto:gstreamer-devel-bounces
> +dave_mateer=ntm.org at lists.freedesktop.org] On Behalf Of Dave Mateer
> Sent: Wednesday, May 02, 2012 3:16 PM
> To: gstreamer-devel at lists.freedesktop.org
> Subject: Time stretching
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> Can someone point out to me what plug-in I need to do a time stretch?
> (Change the playback rate without changing pitch.)
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> Also, will this keep the clock synchronized across all media? That is,
> if the audio is playing back at 50% speed, then the associated video
> should also be played at half-speed.
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> Thanks,
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> Dave
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