mltframework / mltframework/mlt
affine filter cuts off the bottom 1px of the video
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- Dominant language
- C
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- 387
- Avg merge
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- Merged PRs (30d)
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Description
<?xml version="1.0" encoding="utf-8"?>
<mlt>
<profile description="" width="640" height="360"/>
<producer id="16da6066-6d38-76bd-75de-5394693db212">
<property name="resource">http://kb-oss-daily.oss-cn-zhangjiakou.aliyuncs.com/video/2019/08/06/67399a58-8788-474b-90d0-567383694ca8.mp4</property>
<filter>
<property name="mlt_service">affine</property>
<property name="transition.rect">0 0 640 360</property>
<property name="background">color:red</property>
</filter>
</producer>
<playlist id="main_timeline">
<entry producer="16da6066-6d38-76bd-75de-5394693db212"/>
</playlist>
<tractor id="default">
<track producer="main_timeline"/>
</tractor>
</mlt>
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First steps
- Read the whole issue, then the project's contributing guide.
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- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Reproduce the supplied MLT XML with the affine filter, its 640x360 profile, and transition.rect set to 0 0 640 360. Start by tracing the affine filter entry point and inspect how the output bounds are calculated; done means the rendered video no longer loses its bottom 1px.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- c
- Domain
- audio-video-rtc
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100