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https://github.com/kasmtech/KasmVNC.git
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Merge branch 'feature/KASM-7125-fixing-webp-encoding' into 'master'
Adding ability to override webp benchmark value Closes KASM-7125 See merge request kasm-technologies/internal/KasmVNC!174
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commit
8e9edb7d4e
@ -76,6 +76,9 @@ if [ ! -d unix/xserver/include ]; then
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patch -s -p0 < ../CVE-2022-2320-v1.19.patch
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;;
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esac
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else
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cd unix/xserver
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fi
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autoreconf -i
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# Configuring Xorg is long and has many distro-specific paths.
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@ -114,7 +117,7 @@ if [ ! -d unix/xserver/include ]; then
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# remove array bounds errors for new versions of GCC
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find . -name "Makefile" -exec sed -i 's/-Werror=array-bounds//g' {} \;
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fi
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make -j"$(nproc)"
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@ -360,7 +360,6 @@ void EncodeManager::doUpdate(bool allowLossy, const Region& changed_,
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int nRects;
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Region changed, cursorRegion;
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struct timeval start;
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unsigned screenArea;
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updates++;
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if (conn->cp.supportsUdp)
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@ -390,16 +389,7 @@ void EncodeManager::doUpdate(bool allowLossy, const Region& changed_,
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memset(&webpstats, 0, sizeof(codecstats_t));
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if (allowLossy && activeEncoders[encoderFullColour] == encoderTightWEBP) {
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const unsigned rate = 1024 * 1000 / rfb::Server::frameRate;
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screenArea = pb->getRect().width() * pb->getRect().height();
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screenArea *= 1024;
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screenArea /= 256 * 256;
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screenArea *= webpBenchResult;
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// Encoding the entire screen would take this many 1024*msecs, worst case
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// Calculate how many us we can send webp for, before switching to jpeg
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webpFallbackUs = rate * rate / screenArea;
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webpFallbackUs = (1000 * 1000 / rfb::Server::frameRate) * (static_cast<double>(Server::webpEncodingTime) / 100.0);
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}
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/*
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@ -883,7 +873,7 @@ void EncodeManager::findSolidRect(const Rect& rect, Region *changed,
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void EncodeManager::checkWebpFallback(const timeval *start) {
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// Have we taken too long for the frame? If so, drop from WEBP to JPEG
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if (start && activeEncoders[encoderFullColour] == encoderTightWEBP && !webpTookTooLong.load(std::memory_order_relaxed)) {
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const auto us = msSince(start) * 1024;
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const auto us = msSince(start) * 1000;
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if (us > webpFallbackUs)
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webpTookTooLong.store(true, std::memory_order_relaxed);
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}
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@ -287,3 +287,8 @@ rfb::PresetParameter rfb::Server::preferBandwidth
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("PreferBandwidth",
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"Set various options for lower bandwidth use. The default is off, aka to prefer quality.",
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false, bandwidthPreset);
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rfb::IntParameter rfb::Server::webpEncodingTime
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("webpEncodingTime",
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"Percentage of time allotted for encoding a frame, that can be used for encoding rects in webp.",
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30, 0, 100);
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@ -91,6 +91,7 @@ namespace rfb {
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static BoolParameter ignoreClientSettingsKasm;
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static BoolParameter selfBench;
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static PresetParameter preferBandwidth;
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static IntParameter webpEncodingTime;
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};
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};
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@ -259,13 +259,14 @@ void TightWEBPEncoder::writeRect(const PixelBuffer* pb, const Palette& palette)
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WebPMemoryWriterClear(&wrt);
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}
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// How many milliseconds would it take to encode a 256x256 block at quality 8
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// How many milliseconds would it take to encode a 256x256 block at quality 5
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rdr::U32 TightWEBPEncoder::benchmark() const
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{
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rdr::U8* buffer;
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struct timeval start;
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int stride, i;
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const uint8_t quality = 8, method = 2;
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// the minimum WebP quality settings used in KasmVNC
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const uint8_t quality = 5, method = 0;
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WebPConfig cfg;
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WebPPicture pic;
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WebPMemoryWriter wrt;
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@ -129,6 +129,7 @@ encoding:
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logging:
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level: off
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scaling_algorithm: progressive_bilinear
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webp_encoding_time: 30
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compare_framebuffer: auto
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zrle_zlib_level: auto
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@ -2068,6 +2068,15 @@ sub DefineConfigToCLIConversion {
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$value;
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}
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}),
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KasmVNC::CliOption->new({
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name => 'WebpEncodingTime',
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configKeys => [
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KasmVNC::ConfigKey->new({
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name => "encoding.video_encoding_mode.webp_encoding_time",
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type => KasmVNC::ConfigKey::INT
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})
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]
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}),
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KasmVNC::CliOption->new({
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name => 'CompareFB',
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configKeys => [
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