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libavformat/avio: Add avio_get_dyn_buf function

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This commit adds the avio_get_dyn_buf function which allows accessing
the
content of a DynBuffer without destroying it.

This is required in matroskaenc for preliminary writing (correct) mkv
headers.

Context for this change is fixing regression bug #5977.

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
softworkz
2017-01-05 01:33:26 +01:00
committed by Michael Niedermayer
parent 90ac9f4094
commit 9488032e10
4 changed files with 33 additions and 1 deletions
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doc/APIchanges
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@ -15,6 +15,9 @@ libavutil: 2015-08-28
API changes, most recent first:
2017-01-06 - xxxxxxx - lavf 57.62.100- avio.h
Add avio_get_dyn_buf()
2016-12-10 - xxxxxxx - lavu xx.xx.100- imgutils.h
Add av_image_check_size2()