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af_format: change license to LGPL

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This case is a bit weird, because MPlayer certainly also has a file
named af_format.c. Both appear to have the function of converting audio
data between sample formats.

However, mpv's af_format.c is a rewrite, and doesn't actually do
conversion by itself. It's similar to vf_format.c, and forces the
generic filter chain code to insert conversion filters, instead of doing
conversion explicitly.

mpv's current af_format.c started out as af_force.c in d9582ad0a4. It
was renamed to af_format.c in e60b8f181d, while the old af_format.c was
split into two new filters. In 943c785619 the filename was changed to
af_format.c as well.

The new af_format.c does not contain any libaf code, except for some
potentially copy & pasted skeleton and boilerplate code. (We don't
account for this in per-filter file licenses, as the old libaf code
has to be removed fully, at which point the filters will have to be
ported to another framework, which will removed that boilerplate code.)

The old filters based on af_format.c were progressively replaced and
removed. Support for non-native endian and formats with signedness
different from native FFmpeg was completely removed in 831d7c3c40.
The old 24 bit conversion code was removed in 552dc0d564 (made
unnecessary by 5a9f817bfd).

Also list hwdec_vaglx.c as GPL-only, which doesn't have anything to do
with this commit.
This commit is contained in:
wm4
2017-05-11 11:00:15 +02:00
parent 99cef59fc9
commit faefbbaaa5
2 changed files with 9 additions and 8 deletions
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@@ -62,7 +62,7 @@ LGPL relicensing status:
audio/filter/af_volume.c must be killed (main author disagreed)
audio/filter/equalizer.h must be killed (main author disagreed)
audio/filter/tools.c must be killed (main author disagreed)
audio/filter/af_format.c easy
audio/filter/af_format.c LGPL
audio/filter/af_lavc3enc.c LGPL
audio/filter/af_lavfi.c LGPL
audio/filter/af_scaletempo.c LGPL
@@ -303,6 +303,7 @@ LGPL relicensing status:
video/out/dither.* LGPL
video/out/drm_common.* LGPL
video/out/filter_kernels.* LGPL (BSD)
video/out/opengl/hwdec_vaglx.c GPL
video/out/opengl/* LGPL
video/out/vo.c LGPL
video/out/vo.h LGPL