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avcodec/codec_internal: Use union for FFCodec decode/encode callbacks

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This is possible, because every given FFCodec has to implement
exactly one of these. Doing so decreases sizeof(FFCodec) and
therefore decreases the size of the binary.
Notice that in case of position-independent code the decrease
is in .data.rel.ro, so that this translates to decreased
memory consumption.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2022-03-30 23:28:24 +02:00
parent ce7dbd0481
commit 4243da4ff4
498 changed files with 760 additions and 675 deletions
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libavcodec/librav1e.c
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@ -620,7 +620,7 @@ const FFCodec ff_librav1e_encoder = {
.p.type = AVMEDIA_TYPE_VIDEO,
.p.id = AV_CODEC_ID_AV1,
.init = librav1e_encode_init,
.receive_packet = librav1e_receive_packet,
FF_CODEC_RECEIVE_PACKET_CB(librav1e_receive_packet),
.close = librav1e_encode_close,
.priv_data_size = sizeof(librav1eContext),
.p.priv_class = &class,