Initializing zlib in the way we do here is threadsafe, see
https://www.zlib.net/zlib_faq.html#faq21
Signed-off-by: Andreas Rheinhardt <andreas.rheinha...@outlook.com>
---
libavcodec/pngenc.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/libavcodec/pngenc.c b/libavcodec/pngenc.c
index 831223be63..a398155100 100644
--- a/libavcodec/pngenc.c
+++ b/libavcodec/pngenc.c
@@ -1140,6 +1140,7 @@ const AVCodec ff_png_encoder = {
AV_PIX_FMT_MONOBLACK, AV_PIX_FMT_NONE
},
.priv_class = &pngenc_class,
+ .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE,
};
const AVCodec ff_apng_encoder = {
@@ -1161,4 +1162,5 @@ const AVCodec ff_apng_encoder = {
AV_PIX_FMT_NONE
},
.priv_class = &apngenc_class,
+ .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE,
};
--
2.27.0
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