veyepar: Call C code quickly and compatibly with CFFI

Author(s):	Zack Voase
Location	Mystic Theatre
Date	dec Sun 03	Days Raw Files
Start	11:24	First Raw Start	10:59
Duration	0:30:0	Offset	0:24:05
End	11:54	Last Raw End	11:59
Chapters	00:00 0:05:42
Total cuts_time	27 min.

https://2017.northbaypython.org/schedule/presentation/17/
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Description:	Have you ever wanted to speed up a slow part of your Python program by rewriting part of it in C? Maybe you needed to use a C/C++ library, but couldn’t find a Python binding? This talk will get you started with CFFI, a modern approach to calling into C code from Python. CFFI (FFI stands for ‘foreign function interface’) produces modules that work across interpreters and language versions. You won't need to write wrappers in a third language like SWIG or Cython, and you'll get better performance than with ctypes. I'll walk through the creation of a library which wraps a C data structure, showing tips and tricks for rapid development, and how to avoid potential pitfalls. I'll also touch on how to interface with system libraries from Python, using CFFI to generate safe and fast bindings. markdown
Comment:	production notes

2017-12-03/10_59_55.ts Apply: 10:59:55 - 11:18:19 ( 00:18:24 ) S: 10:59:55 - E: 11:29:54 D: 00:29:59 (End: 1104.0) show more...

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	10:59:55		seconds: 0.0 Wall: 10:59:55
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	11:29:54		seconds: 1104.0 Wall: 11:18:19
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2017-12-03/10_59_55.ts Apply: 11:18:19 - 11:18:50 ( 00:00:31 ) S: 10:59:55 - E: 11:29:54 D: 00:29:59 (Start: 1104.0) (End: 1135.0) show more...

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	10:59:55		seconds: 1104.0 Wall: 11:18:19
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	11:29:54		seconds: 1135.0 Wall: 11:18:50
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2017-12-03/10_59_55.ts Apply: 11:18:50 - 11:24:12 ( 00:05:22 ) S: 10:59:55 - E: 11:29:54 D: 00:29:59 (Start: 1135.0) (End: 1457.0) show more...

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	10:59:55		seconds: 1135.0 Wall: 11:18:50
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	11:29:54		seconds: 1457.0 Wall: 11:24:12
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mp4 mp4.m3u	dv.m3u	Split: Sequence:: delete

2017-12-03/10_59_55.ts Apply: 11:24:12 - 11:29:54 ( 00:05:42 ) S: 10:59:55 - E: 11:29:54 D: 00:29:59 (Start: 1457.0) show more...

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	10:59:55		seconds: 1457.0 Wall: 11:24:12
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	11:29:54		seconds: 0.0 Wall: 10:59:55
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mp4 mp4.m3u	dv.m3u	Split: Sequence:: delete

2017-12-03/11_29_55.ts Apply: 11:29:55 - 11:51:34 ( 00:21:39 ) S: 11:29:55 - E: 11:59:55 D: 00:30:00 (End: 1299.0) show more...

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	11:29:55		seconds: 0.0 Wall: 11:29:55
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2017-12-03/11_29_55.ts Apply: 11:51:34 - 11:58:54 ( 00:07:20 ) S: 11:29:55 - E: 11:59:55 D: 00:30:00 (Start: 1299.0) (End: 1739.0) show more...

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	11:29:55		seconds: 1299.0 Wall: 11:51:34
Duration	00:30:00
	11:59:55		seconds: 1739.0 Wall: 11:58:54
Comments:
mp4 mp4.m3u	dv.m3u	Split: Sequence:: delete

2017-12-03/11_29_55.ts Apply: 11:58:54 - 11:59:55 ( 00:01:01 ) S: 11:29:55 - E: 11:59:55 D: 00:30:00 (Start: 1739.0) show more...

vlc ~/Videos/veyepar/nbpy/nbpy17/dv/mystic/2017-12-03/11_29_55.ts :start-time=01739.0 --audio-desync=0

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	11:29:55		seconds: 1739.0 Wall: 11:58:54
Duration	00:30:00
	11:59:55		seconds: 0.0 Wall: 11:29:55
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Rf filename:	root is .../show/dv/location/, example: 2013-03-13/13:13:30.dv
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