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authorAndri Yngvason <andri@yngvason.is>2024-08-22 21:26:59 +0000
committerAndri Yngvason <andri@yngvason.is>2024-08-22 21:27:04 +0000
commitc68714aee15f1e6c75d53c398ea9b9178f64fcfb (patch)
tree12159ca04905f8549defeb088707f729bc98de00 /common/rfb
parent28cc17e309fc6117370b38ec11d803dc36e8ef01 (diff)
downloadtigervnc-c68714aee15f1e6c75d53c398ea9b9178f64fcfb.tar.gz
tigervnc-c68714aee15f1e6c75d53c398ea9b9178f64fcfb.zip
H264Libav: Use nearest-neighbour sampling in scaler
sws_getCachedContext will set a default sampling method if 0 is passed to the flags argument. This means that when it is called again, the flags argument will not match the flags in the context, so a new one will be allocated every time. To get around this problem, we assign an explicit sampling method, one that also happens to be more efficient and just as good for this use-case as the default one, which is bicubic interpolation.
Diffstat (limited to 'common/rfb')
-rw-r--r--common/rfb/H264LibavDecoderContext.cxx2
1 files changed, 1 insertions, 1 deletions
diff --git a/common/rfb/H264LibavDecoderContext.cxx b/common/rfb/H264LibavDecoderContext.cxx
index c3153fd1..73bfb68c 100644
--- a/common/rfb/H264LibavDecoderContext.cxx
+++ b/common/rfb/H264LibavDecoderContext.cxx
@@ -215,7 +215,7 @@ void H264LibavDecoderContext::decode(const uint8_t* h264_in_buffer,
sws = sws_getCachedContext(sws, frame->width, frame->height, avctx->pix_fmt,
frame->width, frame->height, AV_PIX_FMT_RGB32,
- 0, nullptr, nullptr, nullptr);
+ SWS_POINT, nullptr, nullptr, nullptr);
int inFull, outFull, brightness, contrast, saturation;
const int* inTable;