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OBS-URL: https://build.opensuse.org/package/show/KDE:Frameworks/kpipewire6?expand=0&rev=19
This commit is contained in:
Christophe Marin 2024-07-16 17:34:19 +00:00 committed by Git OBS Bridge
parent 2108448519
commit d2046b49f6
8 changed files with 372 additions and 20 deletions
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107
0001-Simpler-yet-more-useful-handling-of-KPIPEWIRE_FORCE_.patch Normal file
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@ -0,0 +1,107 @@
From a50c28da704fbf8b9e71ec92054f325a33b9765f Mon Sep 17 00:00:00 2001
From: Fabian Vogt <fabian@ritter-vogt.de>
Date: Sat, 6 Jul 2024 16:27:28 +0200
Subject: [PATCH 1/2] Simpler yet more useful handling of
KPIPEWIRE_FORCE_ENCODER
Previously, it always overrode the encoder type and profile.
Now just force a specific encoder by inlining the encoder selection
in the switch cases.
This means it's no longer possible to force a different encoder type
than the application requested, but it's arguably not that useful to
e.g. force VP9 if the application expects H.264 packets.
(cherry picked from commit 0c3f8b4f9de7d4dcd24d952184dabdbda74b4c35)
---
src/pipewireproduce.cpp | 45 +++++++++--------------------------------
1 file changed, 9 insertions(+), 36 deletions(-)
diff --git a/src/pipewireproduce.cpp b/src/pipewireproduce.cpp
index 3452ce9..416bcd3 100644
--- a/src/pipewireproduce.cpp
+++ b/src/pipewireproduce.cpp
@@ -266,46 +266,19 @@ void PipeWireProduce::stateChanged(pw_stream_state state)
std::unique_ptr<Encoder> PipeWireProduce::makeEncoder()
{
- auto encoderType = m_encoderType;
- bool forceSoftware = false;
- bool forceHardware = false;
-
- if (qEnvironmentVariableIsSet("KPIPEWIRE_FORCE_ENCODER")) {
- auto forcedEncoder = qEnvironmentVariable("KPIPEWIRE_FORCE_ENCODER");
- if (forcedEncoder == u"libvpx") {
- qCWarning(PIPEWIRERECORD_LOGGING) << "Forcing VP8 Software encoding";
- encoderType = PipeWireBaseEncodedStream::VP8;
- forceSoftware = true;
- } else if (forcedEncoder == u"libvpx-vp9") {
- qCWarning(PIPEWIRERECORD_LOGGING) << "Forcing VP9 Software encoding";
- encoderType = PipeWireBaseEncodedStream::VP9;
- forceSoftware = true;
- } else if (forcedEncoder == u"libx264") {
- qCWarning(PIPEWIRERECORD_LOGGING) << "Forcing H264 Software encoding, main profile";
- encoderType = PipeWireBaseEncodedStream::H264Main;
- forceSoftware = true;
- } else if (forcedEncoder == u"h264_vaapi") {
- qCWarning(PIPEWIRERECORD_LOGGING) << "Forcing H264 Hardware encoding, main profile";
- encoderType = PipeWireBaseEncodedStream::H264Main;
- forceHardware = true;
- } else if (forcedEncoder == u"libx264_baseline") {
- qCWarning(PIPEWIRERECORD_LOGGING) << "Forcing H264 Software encoding, baseline profile";
- encoderType = PipeWireBaseEncodedStream::H264Baseline;
- forceSoftware = true;
- } else if (forcedEncoder == u"h264_vaapi_baseline") {
- qCWarning(PIPEWIRERECORD_LOGGING) << "Forcing H264 Hardware encoding, baseline profile";
- encoderType = PipeWireBaseEncodedStream::H264Baseline;
- forceHardware = true;
- }
+ auto forcedEncoder = qEnvironmentVariable("KPIPEWIRE_FORCE_ENCODER");
+ if (!forcedEncoder.isNull()) {
+ qCWarning(PIPEWIRERECORD_LOGGING) << "Forcing encoder to" << forcedEncoder;
}
auto size = m_stream->size();
- switch (encoderType) {
+ switch (m_encoderType) {
case PipeWireBaseEncodedStream::H264Baseline:
case PipeWireBaseEncodedStream::H264Main: {
auto profile = m_encoderType == PipeWireBaseEncodedStream::H264Baseline ? Encoder::H264Profile::Baseline : Encoder::H264Profile::Main;
- if (!forceSoftware) {
+
+ if (forcedEncoder.isNull() || forcedEncoder == u"h264_vaapi") {
auto hardwareEncoder = std::make_unique<H264VAAPIEncoder>(profile, this);
hardwareEncoder->setQuality(m_quality);
hardwareEncoder->setEncodingPreference(m_encodingPreference);
@@ -314,7 +287,7 @@ std::unique_ptr<Encoder> PipeWireProduce::makeEncoder()
}
}
- if (!forceHardware) {
+ if (forcedEncoder.isNull() || forcedEncoder == u"libx264") {
auto softwareEncoder = std::make_unique<LibX264Encoder>(profile, this);
softwareEncoder->setQuality(m_quality);
softwareEncoder->setEncodingPreference(m_encodingPreference);
@@ -325,7 +298,7 @@ std::unique_ptr<Encoder> PipeWireProduce::makeEncoder()
break;
}
case PipeWireBaseEncodedStream::VP8: {
- if (!forceHardware) {
+ if (forcedEncoder.isNull() || forcedEncoder == u"libvpx") {
auto encoder = std::make_unique<LibVpxEncoder>(this);
encoder->setQuality(m_quality);
if (encoder->initialize(size)) {
@@ -335,7 +308,7 @@ std::unique_ptr<Encoder> PipeWireProduce::makeEncoder()
break;
}
case PipeWireBaseEncodedStream::VP9: {
- if (!forceHardware) {
+ if (forcedEncoder.isNull() || forcedEncoder == u"libvpx-vp9") {
auto encoder = std::make_unique<LibVpxVp9Encoder>(this);
encoder->setQuality(m_quality);
if (encoder->initialize(size)) {
--
2.45.2

223
0002-Add-encoder-using-libopenh264.patch Normal file
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@ -0,0 +1,223 @@
From 43ab595c28e031f38bc92bea4cf475de64021958 Mon Sep 17 00:00:00 2001
From: Fabian Vogt <fabian@ritter-vogt.de>
Date: Sat, 6 Jul 2024 16:40:42 +0200
Subject: [PATCH 2/2] Add encoder using libopenh264
On some distributions, libopenh264 is the only encoder available OOTB.
Add support for it and use it as fallback.
BUG: 476187
(cherry picked from commit e17793a3b023f26411001093bb2d5934adf715c7)
---
src/CMakeLists.txt | 1 +
src/libopenh264encoder.cpp | 106 ++++++++++++++++++++++++++++++
src/libopenh264encoder_p.h | 28 ++++++++
src/pipewirebaseencodedstream.cpp | 2 +-
src/pipewireproduce.cpp | 11 ++++
5 files changed, 147 insertions(+), 1 deletion(-)
create mode 100644 src/libopenh264encoder.cpp
create mode 100644 src/libopenh264encoder_p.h
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index e96f52b..3126528 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -135,6 +135,7 @@ add_library(KPipeWireRecord ${kpipewirerecord_SRCS}
encoder.cpp
h264vaapiencoder.cpp
libx264encoder.cpp
+ libopenh264encoder.cpp
libvpxencoder.cpp
libvpxvp9encoder.cpp
)
diff --git a/src/libopenh264encoder.cpp b/src/libopenh264encoder.cpp
new file mode 100644
index 0000000..6d4c6a1
--- /dev/null
+++ b/src/libopenh264encoder.cpp
@@ -0,0 +1,106 @@
+/*
+ SPDX-FileCopyrightText: 2023 Aleix Pol Gonzalez <aleixpol@kde.org>
+ SPDX-FileCopyrightText: 2023 Marco Martin <mart@kde.org>
+ SPDX-FileCopyrightText: 2023 Arjen Hiemstra <ahiemstra@heimr.nl>
+ SPDX-FileCopyrightText: 2024 Fabian Vogt <fabian@ritter-vogt.de>
+
+ SPDX-License-Identifier: LGPL-2.1-only OR LGPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL
+*/
+
+#include "libopenh264encoder_p.h"
+
+#include <QSize>
+#include <QThread>
+
+extern "C" {
+#include <libavcodec/avcodec.h>
+#include <libavfilter/buffersink.h>
+#include <libavfilter/buffersrc.h>
+#include <libavutil/pixfmt.h>
+}
+
+#include "logging_record.h"
+
+LibOpenH264Encoder::LibOpenH264Encoder(H264Profile profile, PipeWireProduce *produce)
+ : SoftwareEncoder(produce)
+ , m_profile(profile)
+{
+}
+
+bool LibOpenH264Encoder::initialize(const QSize &size)
+{
+ createFilterGraph(size);
+
+ auto codec = avcodec_find_encoder_by_name("libopenh264");
+ if (!codec) {
+ qCWarning(PIPEWIRERECORD_LOGGING) << "libopenh264 codec not found";
+ return false;
+ }
+
+ m_avCodecContext = avcodec_alloc_context3(codec);
+ if (!m_avCodecContext) {
+ qCWarning(PIPEWIRERECORD_LOGGING) << "Could not allocate video codec context";
+ return false;
+ }
+
+ Q_ASSERT(!size.isEmpty());
+ m_avCodecContext->width = size.width();
+ m_avCodecContext->height = size.height();
+ m_avCodecContext->max_b_frames = 0;
+ m_avCodecContext->gop_size = 100;
+ m_avCodecContext->pix_fmt = AV_PIX_FMT_YUV420P;
+ m_avCodecContext->time_base = AVRational{1, 1000};
+
+ if (m_quality) {
+ // "q" here stands for "quantization", but that effectively impacts quality.
+ m_avCodecContext->qmin = m_avCodecContext->qmax = percentageToAbsoluteQuality(m_quality);
+ }
+
+ switch (m_profile) {
+ case H264Profile::Baseline:
+ // libopenh264 only does constrained baseline.
+ // There's a bug in the ffmpeg -> openh264 interface though:
+ // ffmpeg expects CONSTRAINED_BASELINE from the application and
+ // passes that through, but libopenh264 only allows BASELINE.
+ // Until that bug is fixed there'll always be a warning that the
+ // profile is not supported (https://github.com/cisco/openh264/issues/3613)
+ m_avCodecContext->profile = FF_PROFILE_H264_CONSTRAINED_BASELINE;
+ break;
+ case H264Profile::Main:
+ m_avCodecContext->profile = FF_PROFILE_H264_MAIN;
+ break;
+ case H264Profile::High:
+ m_avCodecContext->profile = FF_PROFILE_H264_HIGH;
+ break;
+ }
+
+ AVDictionary *options = nullptr;
+ av_dict_set_int(&options, "threads", qMin(16, QThread::idealThreadCount()), 0);
+ applyEncodingPreference(options);
+
+ if (int result = avcodec_open2(m_avCodecContext, codec, &options); result < 0) {
+ qCWarning(PIPEWIRERECORD_LOGGING) << "Could not open codec" << av_err2str(result);
+ return false;
+ }
+
+ return true;
+}
+
+int LibOpenH264Encoder::percentageToAbsoluteQuality(const std::optional<quint8> &quality)
+{
+ if (!quality) {
+ return -1;
+ }
+
+ // 1-51 (incl.), lower is better
+ return 51 - (m_quality.value() / 100.0) * 50;
+}
+
+void LibOpenH264Encoder::applyEncodingPreference(AVDictionary *options)
+{
+ SoftwareEncoder::applyEncodingPreference(options);
+ // Disable motion estimation, not great while dragging windows but speeds up encoding by an order of magnitude
+ av_dict_set(&options, "flags", "+mv4", 0);
+ // Disable in-loop filtering
+ av_dict_set_int(&options, "loopfilter", 0, 0);
+}
diff --git a/src/libopenh264encoder_p.h b/src/libopenh264encoder_p.h
new file mode 100644
index 0000000..fdacf14
--- /dev/null
+++ b/src/libopenh264encoder_p.h
@@ -0,0 +1,28 @@
+/*
+ SPDX-FileCopyrightText: 2023 Aleix Pol Gonzalez <aleixpol@kde.org>
+ SPDX-FileCopyrightText: 2023 Marco Martin <mart@kde.org>
+ SPDX-FileCopyrightText: 2023 Arjen Hiemstra <ahiemstra@heimr.nl>
+ SPDX-FileCopyrightText: 2024 Fabian Vogt <fabian@ritter-vogt.de>
+
+ SPDX-License-Identifier: LGPL-2.1-only OR LGPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL
+*/
+
+#include "encoder_p.h"
+
+/**
+ * A software encoder that uses ffmpeg + libopenh264 to encode to H.264.
+ */
+class LibOpenH264Encoder : public SoftwareEncoder
+{
+public:
+ LibOpenH264Encoder(H264Profile profile, PipeWireProduce *produce);
+
+ bool initialize(const QSize &size) override;
+
+protected:
+ int percentageToAbsoluteQuality(const std::optional<quint8> &quality) override;
+ void applyEncodingPreference(AVDictionary *options) override;
+
+private:
+ H264Profile m_profile = H264Profile::Main;
+};
diff --git a/src/pipewirebaseencodedstream.cpp b/src/pipewirebaseencodedstream.cpp
index 553c334..814d8d9 100644
--- a/src/pipewirebaseencodedstream.cpp
+++ b/src/pipewirebaseencodedstream.cpp
@@ -225,7 +225,7 @@ QList<PipeWireBaseEncodedStream::Encoder> PipeWireBaseEncodedStream::suggestedEn
&& avcodec_find_encoder_by_name("h264_vaapi")) {
return false;
} else {
- return !avcodec_find_encoder_by_name("libx264");
+ return !(avcodec_find_encoder_by_name("libx264") || avcodec_find_encoder_by_name("libopenh264"));
}
default:
return true;
diff --git a/src/pipewireproduce.cpp b/src/pipewireproduce.cpp
index 416bcd3..52594e6 100644
--- a/src/pipewireproduce.cpp
+++ b/src/pipewireproduce.cpp
@@ -16,6 +16,7 @@
#include <qstringliteral.h>
#include "h264vaapiencoder_p.h"
+#include "libopenh264encoder_p.h"
#include "libvpxencoder_p.h"
#include "libvpxvp9encoder_p.h"
#include "libx264encoder_p.h"
@@ -295,6 +296,16 @@ std::unique_ptr<Encoder> PipeWireProduce::makeEncoder()
return softwareEncoder;
}
}
+
+ // Try libopenh264 last, it's slower and has less features.
+ if (forcedEncoder.isNull() || forcedEncoder == u"libopenh264") {
+ auto softwareEncoder = std::make_unique<LibOpenH264Encoder>(profile, this);
+ softwareEncoder->setQuality(m_quality);
+ softwareEncoder->setEncodingPreference(m_encodingPreference);
+ if (softwareEncoder->initialize(size)) {
+ return softwareEncoder;
+ }
+ }
break;
}
case PipeWireBaseEncodedStream::VP8: {
--
2.45.2

3
kpipewire-6.1.2.tar.xz
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@ -1,3 +0,0 @@
version https://git-lfs.github.com/spec/v1
oid sha256:250f505d723fb71fdfb5af5f89e4f878f632c534fb2b01ba0bbb3ac19170d571
size 148220

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kpipewire-6.1.2.tar.xz.sig
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19
kpipewire6.changes
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@ -1,3 +1,22 @@
-------------------------------------------------------------------
Tue Jul 16 13:35:56 UTC 2024 - Fabian Vogt <fabian@ritter-vogt.de>
- Add patches to support libopenh264 for encoding
(boo#1227461, kde#476187):
* 0001-Simpler-yet-more-useful-handling-of-KPIPEWIRE_FORCE_.patch
* 0002-Add-encoder-using-libopenh264.patch
-------------------------------------------------------------------
Tue Jul 16 13:23:41 UTC 2024 - Fabian Vogt <fabian@ritter-vogt.de>
- Update to 6.1.3:
* New bugfix release
* For more details see https://kde.org/announcements/plasma/6/6.1.3
- Changes since 6.1.2:
* produce: Properly cleanup on deactivate in all cases (kde#488687)
* produce: Destroy PipeWireSourceStream on the right thread (kde#489434)
* update version for new release
------------------------------------------------------------------- -------------------------------------------------------------------
Tue Jul 2 17:34:03 UTC 2024 - Fabian Vogt <fabian@ritter-vogt.de> Tue Jul 2 17:34:03 UTC 2024 - Fabian Vogt <fabian@ritter-vogt.de>

5
kpipewire6.spec
View File

@ -27,7 +27,7 @@
%{!?_plasma6_version: %define _plasma6_version %(echo %{_plasma6_bugfix} | awk -F. '{print $1"."$2}')} %{!?_plasma6_version: %define _plasma6_version %(echo %{_plasma6_bugfix} | awk -F. '{print $1"."$2}')}
%bcond_without released %bcond_without released
Name: kpipewire6 Name: kpipewire6
Version: 6.1.2 Version: 6.1.3
Release: 0 Release: 0
Summary: PipeWire integration for KDE Plasma Summary: PipeWire integration for KDE Plasma
License: LGPL-2.0-only AND LGPL-3.0-only License: LGPL-2.0-only AND LGPL-3.0-only
@ -37,6 +37,9 @@ Source: https://download.kde.org/stable/plasma/%{version}/%{rname}-%{ver
Source1: https://download.kde.org/stable/plasma/%{version}/%{rname}-%{version}.tar.xz.sig Source1: https://download.kde.org/stable/plasma/%{version}/%{rname}-%{version}.tar.xz.sig
Source2: plasma.keyring Source2: plasma.keyring
%endif %endif
# PATCH-FEATURE-UPSTREAM
Patch1: 0001-Simpler-yet-more-useful-handling-of-KPIPEWIRE_FORCE_.patch
Patch2: 0002-Add-encoder-using-libopenh264.patch
BuildRequires: kf6-extra-cmake-modules BuildRequires: kf6-extra-cmake-modules
BuildRequires: pkgconfig BuildRequires: pkgconfig
BuildRequires: qt6-gui-private-devel >= %{qt6_version} BuildRequires: qt6-gui-private-devel >= %{qt6_version}