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/*
* Copyright (C) 2022 Metrological Group B.V.
* Author: Philippe Normand <philn@igalia.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* aint with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "config.h"
#if USE(GSTREAMER_WEBRTC)
#include "GStreamerWebRTCProvider.h"
#include "ContentType.h"
#include "GStreamerRegistryScanner.h"
#include "MediaCapabilitiesDecodingInfo.h"
#include "MediaCapabilitiesEncodingInfo.h"
#include "MediaDecodingConfiguration.h"
#include "MediaEncodingConfiguration.h"
#include "NotImplemented.h"
namespace WebCore {
void WebRTCProvider::setH264HardwareEncoderAllowed(bool)
{
// TODO: Hook this into GStreamerRegistryScanner.
notImplemented();
}
UniqueRef<WebRTCProvider> WebRTCProvider::create()
{
return makeUniqueRef<GStreamerWebRTCProvider>();
}
bool WebRTCProvider::webRTCAvailable()
{
return true;
}
void WebRTCProvider::setActive(bool)
{
notImplemented();
}
std::optional<RTCRtpCapabilities> GStreamerWebRTCProvider::receiverCapabilities(const String& kind)
{
if (kind == "audio"_s)
return audioDecodingCapabilities();
if (kind == "video"_s)
return videoDecodingCapabilities();
return { };
}
std::optional<RTCRtpCapabilities> GStreamerWebRTCProvider::senderCapabilities(const String& kind)
{
if (kind == "audio"_s)
return audioEncodingCapabilities();
if (kind == "video"_s)
return videoEncodingCapabilities();
return { };
}
void GStreamerWebRTCProvider::initializeAudioEncodingCapabilities()
{
m_audioEncodingCapabilities = GStreamerRegistryScanner::singleton().audioRtpCapabilities(GStreamerRegistryScanner::Configuration::Encoding);
}
void GStreamerWebRTCProvider::initializeVideoEncodingCapabilities()
{
ensureGStreamerInitialized();
registerWebKitGStreamerVideoEncoder();
m_videoEncodingCapabilities = GStreamerRegistryScanner::singleton().videoRtpCapabilities(GStreamerRegistryScanner::Configuration::Encoding);
m_videoEncodingCapabilities->codecs.removeAllMatching([isSupportingVP9Profile0 = isSupportingVP9Profile0(), isSupportingVP9Profile2 = isSupportingVP9Profile2(), isSupportingH265 = isSupportingH265()](const auto& codec) {
if (!isSupportingVP9Profile0 && codec.sdpFmtpLine == "profile-id=0"_s)
return true;
if (!isSupportingVP9Profile2 && codec.sdpFmtpLine == "profile-id=2"_s)
return true;
if (!isSupportingH265 && codec.mimeType == "video/H265"_s)
return true;
return false;
});
}
void GStreamerWebRTCProvider::initializeAudioDecodingCapabilities()
{
m_audioDecodingCapabilities = GStreamerRegistryScanner::singleton().audioRtpCapabilities(GStreamerRegistryScanner::Configuration::Decoding);
}
void GStreamerWebRTCProvider::initializeVideoDecodingCapabilities()
{
m_videoDecodingCapabilities = GStreamerRegistryScanner::singleton().videoRtpCapabilities(GStreamerRegistryScanner::Configuration::Decoding);
m_videoDecodingCapabilities->codecs.removeAllMatching([isSupportingVP9Profile0 = isSupportingVP9Profile0(), isSupportingVP9Profile2 = isSupportingVP9Profile2(), isSupportingH265 = isSupportingH265()](const auto& codec) {
if (!isSupportingVP9Profile0 && codec.sdpFmtpLine == "profile-id=0"_s)
return true;
if (!isSupportingVP9Profile2 && codec.sdpFmtpLine == "profile-id=2"_s)
return true;
if (!isSupportingH265 && codec.mimeType == "video/H265"_s)
return true;
return false;
});
}
std::optional<MediaCapabilitiesDecodingInfo> GStreamerWebRTCProvider::videoDecodingCapabilitiesOverride(const VideoConfiguration& configuration)
{
MediaCapabilitiesDecodingInfo info;
ContentType contentType { configuration.contentType };
auto containerType = contentType.containerType();
if (equalLettersIgnoringASCIICase(containerType, "video/vp8"_s)) {
info.powerEfficient = false;
info.smooth = isVPSoftwareDecoderSmooth(configuration);
} else if (equalLettersIgnoringASCIICase(containerType, "video/vp9"_s)) {
auto decodingInfo = computeVPParameters(configuration);
info.powerEfficient = decodingInfo ? decodingInfo->powerEfficient : true;
info.smooth = decodingInfo ? decodingInfo->smooth : isVPSoftwareDecoderSmooth(configuration);
} else {
// FIXME: Provide more granular H.264 decoder information.
info.powerEfficient = true;
info.smooth = true;
}
info.supported = true;
return { info };
}
} // namespace WebCore
#endif // USE(GSTREAMER_WEBRTC)
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