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lavc/container_fifo: move to lavu and make public

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This can be useful in other places, e.g. it can replace objpool in
fftools.

The API is modified in the following nontrivial ways:
* opaque pointers can be passed through to all user callbacks
* read and write were previously separate callbacks in order to
  accomodate the caller wishing to write a new reference to the FIFO and
  keep the original one; the two callbacks are now merged into one, and
  a flags argument is added that allows to request such behaviour on a
  per-call basis
* new peek and drain functions
This commit is contained in:
Anton Khirnov
2024-10-17 10:49:04 +02:00
parent 56ba57b672
commit 2e956d9c0f
9 changed files with 215 additions and 145 deletions
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doc/APIchanges
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@@ -2,10 +2,13 @@ The last version increases of all libraries were on 2024-03-07
API changes, most recent first:
2024-12-15 - xxxxxxxxxx - lavu 59.51.100 - refstruct.h
2024-12-15 - xxxxxxxxxx - lavu 59.51.100 - refstruct.h container_fifo.h
Add a new public header refstruct.h with new API for
reference-counted objects.
Add a new public header container_fifo.h with new API for
a FIFO of container objects (e.g. AVFrame or AVPacket).
2024-12-13 - xxxxxxxxxx - lavu 59.50.100 - channel_layout.h
Add AV_CH_LAYOUT_9POINT1POINT6 and AV_CHANNEL_LAYOUT_9POINT1POINT6.