| /* |
| * Copyright (C) 2019 Igalia S.L |
| * |
| * 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" |
| #include "GStreamerRegistryScanner.h" |
| |
| #if USE(GSTREAMER) |
| #include "ContentType.h" |
| #include "GStreamerCommon.h" |
| #include <fnmatch.h> |
| #include <gst/pbutils/codec-utils.h> |
| #include <wtf/PrintStream.h> |
| |
| namespace WebCore { |
| |
| GST_DEBUG_CATEGORY_STATIC(webkit_media_gst_registry_scanner_debug); |
| #define GST_CAT_DEFAULT webkit_media_gst_registry_scanner_debug |
| |
| GStreamerRegistryScanner& GStreamerRegistryScanner::singleton() |
| { |
| static NeverDestroyed<GStreamerRegistryScanner> sharedInstance; |
| return sharedInstance; |
| } |
| |
| GStreamerRegistryScanner::GStreamerRegistryScanner(bool isMediaSource) |
| : m_isMediaSource(isMediaSource) |
| { |
| GST_DEBUG_CATEGORY_INIT(webkit_media_gst_registry_scanner_debug, "webkitregistryscanner", 0, "WebKit GStreamer registry scanner"); |
| m_audioDecoderFactories = gst_element_factory_list_get_elements(GST_ELEMENT_FACTORY_TYPE_DECODER | GST_ELEMENT_FACTORY_TYPE_MEDIA_AUDIO, GST_RANK_MARGINAL); |
| m_audioParserFactories = gst_element_factory_list_get_elements(GST_ELEMENT_FACTORY_TYPE_PARSER | GST_ELEMENT_FACTORY_TYPE_MEDIA_AUDIO, GST_RANK_NONE); |
| m_videoDecoderFactories = gst_element_factory_list_get_elements(GST_ELEMENT_FACTORY_TYPE_DECODER | GST_ELEMENT_FACTORY_TYPE_MEDIA_VIDEO, GST_RANK_MARGINAL); |
| m_videoParserFactories = gst_element_factory_list_get_elements(GST_ELEMENT_FACTORY_TYPE_PARSER | GST_ELEMENT_FACTORY_TYPE_MEDIA_VIDEO, GST_RANK_MARGINAL); |
| m_demuxerFactories = gst_element_factory_list_get_elements(GST_ELEMENT_FACTORY_TYPE_DEMUXER, GST_RANK_MARGINAL); |
| |
| initialize(); |
| #ifndef GST_DISABLE_GST_DEBUG |
| GST_DEBUG("%s registry scanner initialized", m_isMediaSource ? "MSE" : "Regular playback"); |
| for (auto& mimeType : m_mimeTypeSet) |
| GST_DEBUG("Mime-type registered: %s", mimeType.utf8().data()); |
| for (auto& item : m_codecMap) |
| GST_DEBUG("%s codec pattern registered: %s", item.value ? "Hardware" : "Software", item.key.string().utf8().data()); |
| #endif |
| } |
| |
| GStreamerRegistryScanner::~GStreamerRegistryScanner() |
| { |
| gst_plugin_feature_list_free(m_audioDecoderFactories); |
| gst_plugin_feature_list_free(m_audioParserFactories); |
| gst_plugin_feature_list_free(m_videoDecoderFactories); |
| gst_plugin_feature_list_free(m_videoParserFactories); |
| gst_plugin_feature_list_free(m_demuxerFactories); |
| } |
| |
| GStreamerRegistryScanner::RegistryLookupResult GStreamerRegistryScanner::hasElementForMediaType(GList* elementFactories, const char* capsString, bool shouldCheckHardwareClassifier, Optional<Vector<String>> blackList) const |
| { |
| GRefPtr<GstCaps> caps = adoptGRef(gst_caps_from_string(capsString)); |
| GList* candidates = gst_element_factory_list_filter(elementFactories, caps.get(), GST_PAD_SINK, false); |
| bool isSupported = candidates; |
| bool isUsingHardware = false; |
| |
| if (blackList.hasValue() && !blackList->isEmpty()) { |
| bool hasValidCandidate = false; |
| for (GList* factories = candidates; factories; factories = g_list_next(factories)) { |
| String name(gst_plugin_feature_get_name(GST_PLUGIN_FEATURE_CAST(factories->data))); |
| if (blackList->contains(name)) |
| continue; |
| hasValidCandidate = true; |
| break; |
| } |
| if (!hasValidCandidate) { |
| GST_WARNING("All elements for caps %" GST_PTR_FORMAT " are blacklisted", caps.get()); |
| isSupported = false; |
| shouldCheckHardwareClassifier = false; |
| } |
| } |
| |
| if (shouldCheckHardwareClassifier) { |
| for (GList* factories = candidates; factories; factories = g_list_next(factories)) { |
| auto* factory = reinterpret_cast<GstElementFactory*>(factories->data); |
| String metadata = gst_element_factory_get_metadata(factory, GST_ELEMENT_METADATA_KLASS); |
| auto components = metadata.split('/'); |
| if (components.contains("Hardware")) { |
| isUsingHardware = true; |
| break; |
| } |
| } |
| } |
| |
| gst_plugin_feature_list_free(candidates); |
| #ifndef GST_DISABLE_GST_DEBUG |
| const char* elementType = ""; |
| if (elementFactories == m_audioParserFactories) |
| elementType = "Audio parser"; |
| else if (elementFactories == m_audioDecoderFactories) |
| elementType = "Audio decoder"; |
| else if (elementFactories == m_videoParserFactories) |
| elementType = "Video parser"; |
| else if (elementFactories == m_videoDecoderFactories) |
| elementType = "Video decoder"; |
| else if (elementFactories == m_demuxerFactories) |
| elementType = "Demuxer"; |
| else |
| ASSERT_NOT_REACHED(); |
| GST_LOG("%s lookup result for caps %" GST_PTR_FORMAT " : isSupported=%s, isUsingHardware=%s", elementType, caps.get(), boolForPrinting(isSupported), boolForPrinting(isUsingHardware)); |
| #endif |
| return GStreamerRegistryScanner::RegistryLookupResult { isSupported, isUsingHardware }; |
| } |
| |
| void GStreamerRegistryScanner::fillMimeTypeSetFromCapsMapping(Vector<GstCapsWebKitMapping>& mapping) |
| { |
| for (auto& current : mapping) { |
| GList* factories; |
| switch (current.elementType) { |
| case Demuxer: |
| factories = m_demuxerFactories; |
| break; |
| case AudioDecoder: |
| factories = m_audioDecoderFactories; |
| break; |
| case VideoDecoder: |
| factories = m_videoDecoderFactories; |
| break; |
| } |
| |
| if (hasElementForMediaType(factories, current.capsString)) { |
| if (!current.webkitCodecPatterns.isEmpty()) { |
| for (const auto& pattern : current.webkitCodecPatterns) |
| m_codecMap.add(pattern, false); |
| } |
| if (!current.webkitMimeTypes.isEmpty()) { |
| for (const auto& mimeType : current.webkitMimeTypes) |
| m_mimeTypeSet.add(mimeType); |
| } else |
| m_mimeTypeSet.add(AtomString(current.capsString)); |
| } |
| } |
| } |
| |
| void GStreamerRegistryScanner::initialize() |
| { |
| if (hasElementForMediaType(m_audioDecoderFactories, "audio/mpeg, mpegversion=(int)4")) { |
| m_mimeTypeSet.add(AtomString("audio/aac")); |
| m_mimeTypeSet.add(AtomString("audio/mp4")); |
| m_mimeTypeSet.add(AtomString("audio/x-m4a")); |
| m_codecMap.add(AtomString("mpeg"), false); |
| m_codecMap.add(AtomString("mp4a*"), false); |
| } |
| |
| auto opusSupported = hasElementForMediaType(m_audioDecoderFactories, "audio/x-opus"); |
| if (opusSupported && (!m_isMediaSource || hasElementForMediaType(m_audioParserFactories, "audio/x-opus"))) { |
| m_mimeTypeSet.add(AtomString("audio/opus")); |
| m_codecMap.add(AtomString("opus"), false); |
| m_codecMap.add(AtomString("x-opus"), false); |
| } |
| |
| auto vorbisSupported = hasElementForMediaType(m_audioDecoderFactories, "audio/x-vorbis"); |
| if (vorbisSupported && (!m_isMediaSource || hasElementForMediaType(m_audioParserFactories, "audio/x-vorbis"))) { |
| m_codecMap.add(AtomString("vorbis"), false); |
| m_codecMap.add(AtomString("x-vorbis"), false); |
| } |
| |
| bool matroskaSupported = hasElementForMediaType(m_demuxerFactories, "video/x-matroska"); |
| if (matroskaSupported) { |
| auto vp8DecoderAvailable = hasElementForMediaType(m_videoDecoderFactories, "video/x-vp8", true); |
| auto vp9DecoderAvailable = hasElementForMediaType(m_videoDecoderFactories, "video/x-vp9", true); |
| |
| if (vp8DecoderAvailable || vp9DecoderAvailable) |
| m_mimeTypeSet.add(AtomString("video/webm")); |
| |
| if (vp8DecoderAvailable) { |
| m_codecMap.add(AtomString("vp8"), vp8DecoderAvailable.isUsingHardware); |
| m_codecMap.add(AtomString("x-vp8"), vp8DecoderAvailable.isUsingHardware); |
| m_codecMap.add(AtomString("vp8.0"), vp8DecoderAvailable.isUsingHardware); |
| } |
| if (vp9DecoderAvailable) { |
| m_codecMap.add(AtomString("vp9"), vp9DecoderAvailable.isUsingHardware); |
| m_codecMap.add(AtomString("x-vp9"), vp9DecoderAvailable.isUsingHardware); |
| m_codecMap.add(AtomString("vp9.0"), vp9DecoderAvailable.isUsingHardware); |
| m_codecMap.add(AtomString("vp09*"), vp9DecoderAvailable.isUsingHardware); |
| } |
| if (opusSupported) |
| m_mimeTypeSet.add(AtomString("audio/webm")); |
| } |
| |
| auto h264DecoderAvailable = hasElementForMediaType(m_videoDecoderFactories, "video/x-h264, profile=(string){ constrained-baseline, baseline, high }", true); |
| if (h264DecoderAvailable && (!m_isMediaSource || hasElementForMediaType(m_videoParserFactories, "video/x-h264"))) { |
| m_mimeTypeSet.add(AtomString("video/mp4")); |
| m_mimeTypeSet.add(AtomString("video/x-m4v")); |
| m_codecMap.add(AtomString("x-h264"), h264DecoderAvailable.isUsingHardware); |
| m_codecMap.add(AtomString("avc*"), h264DecoderAvailable.isUsingHardware); |
| m_codecMap.add(AtomString("mp4v*"), h264DecoderAvailable.isUsingHardware); |
| } |
| |
| Vector<String> av1DecodersBlacklist { "av1dec"_s }; |
| if ((matroskaSupported || isContainerTypeSupported("video/mp4")) && hasElementForMediaType(m_videoDecoderFactories, "video/x-av1", false, makeOptional(WTFMove(av1DecodersBlacklist)))) { |
| m_codecMap.add(AtomString("av01*"), false); |
| m_codecMap.add(AtomString("x-av1"), false); |
| } |
| |
| if (m_isMediaSource) |
| return; |
| |
| // The mime-types initialized below are not supported by the MSE backend. |
| |
| Vector<GstCapsWebKitMapping> mapping = { |
| {AudioDecoder, "audio/midi", {"audio/midi", "audio/riff-midi"}, { }}, |
| {AudioDecoder, "audio/x-ac3", { }, { }}, |
| {AudioDecoder, "audio/x-dts", { }, { }}, |
| {AudioDecoder, "audio/x-eac3", {"audio/x-ac3"}, { }}, |
| {AudioDecoder, "audio/x-flac", {"audio/x-flac", "audio/flac"}, { }}, |
| {AudioDecoder, "audio/x-sbc", { }, { }}, |
| {AudioDecoder, "audio/x-sid", { }, { }}, |
| {AudioDecoder, "audio/x-speex", {"audio/speex", "audio/x-speex"}, { }}, |
| {AudioDecoder, "audio/x-wavpack", {"audio/x-wavpack"}, { }}, |
| {VideoDecoder, "video/mpeg, mpegversion=(int){1,2}, systemstream=(boolean)false", {"video/mpeg"}, {"mpeg"}}, |
| {VideoDecoder, "video/mpegts", { }, { }}, |
| {VideoDecoder, "video/x-dirac", { }, { }}, |
| {VideoDecoder, "video/x-flash-video", {"video/flv", "video/x-flv"}, { }}, |
| {VideoDecoder, "video/x-h263", { }, { }}, |
| {VideoDecoder, "video/x-msvideocodec", {"video/x-msvideo"}, { }}, |
| {Demuxer, "application/vnd.rn-realmedia", { }, { }}, |
| {Demuxer, "application/x-3gp", { }, { }}, |
| {Demuxer, "application/x-hls", {"application/vnd.apple.mpegurl", "application/x-mpegurl"}, { }}, |
| {Demuxer, "application/x-pn-realaudio", { }, { }}, |
| {Demuxer, "audio/x-aiff", { }, { }}, |
| {Demuxer, "audio/x-wav", {"audio/x-wav", "audio/wav", "audio/vnd.wave"}, {"1"}}, |
| {Demuxer, "video/quicktime", { }, { }}, |
| {Demuxer, "video/quicktime, variant=(string)3gpp", {"video/3gpp"}, { }}, |
| {Demuxer, "video/x-ms-asf", { }, { }}, |
| }; |
| fillMimeTypeSetFromCapsMapping(mapping); |
| |
| if (hasElementForMediaType(m_demuxerFactories, "application/ogg")) { |
| m_mimeTypeSet.add(AtomString("application/ogg")); |
| |
| if (vorbisSupported) { |
| m_mimeTypeSet.add(AtomString("audio/ogg")); |
| m_mimeTypeSet.add(AtomString("audio/x-vorbis+ogg")); |
| } |
| |
| if (hasElementForMediaType(m_audioDecoderFactories, "audio/x-speex")) { |
| m_mimeTypeSet.add(AtomString("audio/ogg")); |
| m_codecMap.add(AtomString("speex"), false); |
| } |
| |
| if (hasElementForMediaType(m_videoDecoderFactories, "video/x-theora")) { |
| m_mimeTypeSet.add(AtomString("video/ogg")); |
| m_codecMap.add(AtomString("theora"), false); |
| } |
| } |
| |
| bool audioMpegSupported = false; |
| if (hasElementForMediaType(m_audioDecoderFactories, "audio/mpeg, mpegversion=(int)1, layer=(int)[1, 3]")) { |
| audioMpegSupported = true; |
| m_mimeTypeSet.add(AtomString("audio/mp1")); |
| m_mimeTypeSet.add(AtomString("audio/mp3")); |
| m_mimeTypeSet.add(AtomString("audio/x-mp3")); |
| m_codecMap.add(AtomString("audio/mp3"), false); |
| m_codecMap.add(AtomString("mp3"), false); |
| } |
| |
| if (hasElementForMediaType(m_audioDecoderFactories, "audio/mpeg, mpegversion=(int)2")) { |
| audioMpegSupported = true; |
| m_mimeTypeSet.add(AtomString("audio/mp2")); |
| } |
| |
| audioMpegSupported |= isContainerTypeSupported("audio/mp4"); |
| if (audioMpegSupported) { |
| m_mimeTypeSet.add(AtomString("audio/mpeg")); |
| m_mimeTypeSet.add(AtomString("audio/x-mpeg")); |
| } |
| |
| if (matroskaSupported) { |
| m_mimeTypeSet.add(AtomString("video/x-matroska")); |
| |
| if (hasElementForMediaType(m_videoDecoderFactories, "video/x-vp10")) |
| m_mimeTypeSet.add(AtomString("video/webm")); |
| } |
| } |
| |
| bool GStreamerRegistryScanner::isCodecSupported(String codec, bool shouldCheckForHardwareUse) const |
| { |
| // If the codec is named like a mimetype (eg: video/avc) remove the "video/" part. |
| size_t slashIndex = codec.find('/'); |
| if (slashIndex != WTF::notFound) |
| codec = codec.substring(slashIndex + 1); |
| |
| bool supported = false; |
| if (codec.startsWith("avc1")) |
| supported = isAVC1CodecSupported(codec, shouldCheckForHardwareUse); |
| else { |
| for (const auto& item : m_codecMap) { |
| if (!fnmatch(item.key.string().utf8().data(), codec.utf8().data(), 0)) { |
| supported = shouldCheckForHardwareUse ? item.value : true; |
| if (supported) |
| break; |
| } |
| } |
| } |
| |
| GST_LOG("Checked %s codec \"%s\" supported %s", shouldCheckForHardwareUse ? "hardware" : "software", codec.utf8().data(), boolForPrinting(supported)); |
| return supported; |
| } |
| |
| MediaPlayerEnums::SupportsType GStreamerRegistryScanner::isContentTypeSupported(const ContentType& contentType, const Vector<ContentType>& contentTypesRequiringHardwareSupport) const |
| { |
| using SupportsType = MediaPlayerEnums::SupportsType; |
| |
| const auto& containerType = contentType.containerType(); |
| if (!isContainerTypeSupported(containerType)) |
| return SupportsType::IsNotSupported; |
| |
| const auto& codecs = contentType.codecs(); |
| |
| // Spec says we should not return "probably" if the codecs string is empty. |
| if (codecs.isEmpty()) |
| return SupportsType::MayBeSupported; |
| |
| for (const auto& codec : codecs) { |
| bool requiresHardwareSupport = contentTypesRequiringHardwareSupport |
| .findMatching([containerType, codec](auto& hardwareContentType) -> bool { |
| auto hardwareContainer = hardwareContentType.containerType(); |
| if (!hardwareContainer.isEmpty() |
| && fnmatch(hardwareContainer.utf8().data(), containerType.utf8().data(), 0)) |
| return false; |
| auto hardwareCodecs = hardwareContentType.codecs(); |
| return hardwareCodecs.isEmpty() |
| || hardwareCodecs.findMatching([codec](auto& hardwareCodec) -> bool { |
| return !fnmatch(hardwareCodec.utf8().data(), codec.utf8().data(), 0); |
| }) != notFound; |
| }) != notFound; |
| if (!isCodecSupported(codec, requiresHardwareSupport)) |
| return SupportsType::IsNotSupported; |
| } |
| return SupportsType::IsSupported; |
| } |
| |
| bool GStreamerRegistryScanner::areAllCodecsSupported(const Vector<String>& codecs, bool shouldCheckForHardwareUse) const |
| { |
| for (String codec : codecs) { |
| if (!isCodecSupported(codec, shouldCheckForHardwareUse)) |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool GStreamerRegistryScanner::isAVC1CodecSupported(const String& codec, bool shouldCheckForHardwareUse) const |
| { |
| auto components = codec.split('.'); |
| long int spsAsInteger = strtol(components[1].utf8().data(), nullptr, 16); |
| uint8_t sps[3]; |
| sps[0] = spsAsInteger >> 16; |
| sps[1] = spsAsInteger >> 8; |
| sps[2] = spsAsInteger; |
| |
| const char* profile = gst_codec_utils_h264_get_profile(sps, 3); |
| const char* level = gst_codec_utils_h264_get_level(sps, 3); |
| |
| // To avoid going through a class hierarchy for such a simple |
| // string conversion, we use a little trick here: See |
| // https://bugs.webkit.org/show_bug.cgi?id=201870. |
| char levelAsStringFallback[2] = { '\0', '\0' }; |
| if (!level && sps[2] > 0 && sps[2] <= 5) { |
| levelAsStringFallback[0] = static_cast<char>('0' + sps[2]); |
| level = levelAsStringFallback; |
| } |
| |
| if (!profile || !level) { |
| GST_ERROR("H.264 profile / level was not recognised in codec %s", codec.utf8().data()); |
| return false; |
| } |
| |
| GST_DEBUG("Codec %s translates to H.264 profile %s and level %s", codec.utf8().data(), profile, level); |
| |
| auto checkH264Caps = [&](const char* capsString) { |
| bool supported = false; |
| auto lookupResult = hasElementForMediaType(m_videoDecoderFactories, capsString, true); |
| supported = lookupResult; |
| if (shouldCheckForHardwareUse) |
| supported = lookupResult.isUsingHardware; |
| GST_DEBUG("%s decoding supported for codec %s: %s", shouldCheckForHardwareUse ? "Hardware" : "Software", codec.utf8().data(), boolForPrinting(supported)); |
| return supported; |
| }; |
| |
| if (const char* maxVideoResolution = g_getenv("WEBKIT_GST_MAX_AVC1_RESOLUTION")) { |
| uint8_t levelAsInteger = gst_codec_utils_h264_get_level_idc(level); |
| GST_DEBUG("Maximum video resolution requested: %s, supplied codec level IDC: %u", maxVideoResolution, levelAsInteger); |
| uint8_t maxLevel = 0; |
| const char* maxLevelString = ""; |
| if (!g_strcmp0(maxVideoResolution, "1080P")) { |
| maxLevel = 40; |
| maxLevelString = "4"; |
| } else if (!g_strcmp0(maxVideoResolution, "720P")) { |
| maxLevel = 31; |
| maxLevelString = "3.1"; |
| } else if (!g_strcmp0(maxVideoResolution, "480P")) { |
| maxLevel = 30; |
| maxLevelString = "3"; |
| } else { |
| g_warning("Invalid value for WEBKIT_GST_MAX_AVC1_RESOLUTION. Currently supported, 1080P, 720P and 480P."); |
| return false; |
| } |
| if (levelAsInteger > maxLevel) |
| return false; |
| return checkH264Caps(makeString("video/x-h264, level=(string)", maxLevelString).utf8().data()); |
| } |
| |
| if (webkitGstCheckVersion(1, 18, 0)) { |
| GST_DEBUG("Checking video decoders for constrained caps"); |
| return checkH264Caps(makeString("video/x-h264, level=(string)", level, ", profile=(string)", profile).utf8().data()); |
| } |
| |
| GST_DEBUG("Falling back to unconstrained caps"); |
| return checkH264Caps("video/x-h264"); |
| } |
| |
| GStreamerRegistryScanner::RegistryLookupResult GStreamerRegistryScanner::isDecodingSupported(MediaConfiguration& configuration) const |
| { |
| bool isSupported = false; |
| bool isUsingHardware = false; |
| |
| if (configuration.video) { |
| auto& videoConfiguration = configuration.video.value(); |
| GST_DEBUG("Checking support for video configuration: \"%s\" size: %ux%u bitrate: %" G_GUINT64_FORMAT " framerate: %f", |
| videoConfiguration.contentType.utf8().data(), |
| videoConfiguration.width, videoConfiguration.height, |
| videoConfiguration.bitrate, videoConfiguration.framerate); |
| |
| auto contentType = ContentType(videoConfiguration.contentType); |
| isSupported = isContainerTypeSupported(contentType.containerType()); |
| auto codecs = contentType.codecs(); |
| if (!codecs.isEmpty()) |
| isUsingHardware = areAllCodecsSupported(codecs, true); |
| } |
| |
| if (configuration.audio) { |
| auto& audioConfiguration = configuration.audio.value(); |
| GST_DEBUG("Checking support for audio configuration: \"%s\" %s channels, bitrate: %" G_GUINT64_FORMAT " samplerate: %u", |
| audioConfiguration.contentType.utf8().data(), audioConfiguration.channels.utf8().data(), |
| audioConfiguration.bitrate, audioConfiguration.samplerate); |
| auto contentType = ContentType(audioConfiguration.contentType); |
| isSupported = isContainerTypeSupported(contentType.containerType()); |
| } |
| |
| return GStreamerRegistryScanner::RegistryLookupResult { isSupported, isUsingHardware }; |
| } |
| |
| } |
| #endif |
