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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include <array>
#include "MediaCodecsSupport.h"
#include "PlatformDecoderModule.h"
#include "mozilla/AppShutdown.h"
#include "mozilla/gfx/gfxVars.h"
#include "nsTHashMap.h"
using MediaCodecsSupport = mozilla::media::MediaCodecsSupport;
namespace mozilla::media {
static StaticAutoPtr<MCSInfo> sInstance;
static StaticMutex sInitMutex;
static StaticMutex sUpdateMutex;
#define CODEC_SUPPORT_LOG(msg, ...) \
MOZ_LOG(sPDMLog, LogLevel::Debug, ("MediaCodecsSupport, " msg, ##__VA_ARGS__))
void MCSInfo::AddSupport(const MediaCodecsSupported& aSupport) {
StaticMutexAutoLock lock(sUpdateMutex);
MCSInfo* instance = GetInstance();
if (!instance) {
CODEC_SUPPORT_LOG("Can't add codec support without a MCSInfo instance!");
return;
}
instance->mSupport += aSupport;
}
MediaCodecsSupported MCSInfo::GetSupport() {
StaticMutexAutoLock lock(sUpdateMutex);
MCSInfo* instance = GetInstance();
if (!instance) {
CODEC_SUPPORT_LOG("Can't get codec support without a MCSInfo instance!");
return MediaCodecsSupported{};
}
return instance->mSupport;
}
void MCSInfo::ResetSupport() {
StaticMutexAutoLock lock(sUpdateMutex);
MCSInfo* instance = GetInstance();
if (!instance) {
CODEC_SUPPORT_LOG("Can't reset codec support without a MCSInfo instance!");
return;
}
instance->mSupport.clear();
}
DecodeSupportSet MCSInfo::GetDecodeSupportSet(
const MediaCodec& aCodec, const MediaCodecsSupported& aSupported) {
DecodeSupportSet support;
const auto supportInfo = GetCodecDefinition(aCodec);
if (aSupported.contains(supportInfo.swDecodeSupport)) {
support += DecodeSupport::SoftwareDecode;
}
if (aSupported.contains(supportInfo.hwDecodeSupport)) {
support += DecodeSupport::HardwareDecode;
}
return support;
}
MediaCodecsSupported MCSInfo::GetDecodeMediaCodecsSupported(
const MediaCodec& aCodec, const DecodeSupportSet& aSupportSet) {
MediaCodecsSupported support;
const auto supportInfo = GetCodecDefinition(aCodec);
if (aSupportSet.contains(DecodeSupport::SoftwareDecode)) {
support += supportInfo.swDecodeSupport;
}
if (aSupportSet.contains(DecodeSupport::HardwareDecode)) {
support += supportInfo.hwDecodeSupport;
}
return support;
}
void MCSInfo::GetMediaCodecsSupportedString(
nsCString& aSupportString, const MediaCodecsSupported& aSupportedCodecs) {
CodecDefinition supportInfo;
aSupportString = ""_ns;
MCSInfo* instance = GetInstance();
if (!instance) {
CODEC_SUPPORT_LOG("Can't get codec support string w/o a MCSInfo instance!");
return;
}
for (const auto& it : aSupportedCodecs) {
if (!instance->mHashTableMCS->Get(it, &supportInfo)) {
CODEC_SUPPORT_LOG("Can't find string for MediaCodecsSupported enum: %d",
static_cast<int>(it));
aSupportString.Append("Unknown codec entry found!\n"_ns);
continue;
}
// Get codec name string and append SW/HW support info
aSupportString.Append(supportInfo.commonName);
if (it == supportInfo.swDecodeSupport) {
aSupportString.Append(" SW"_ns);
}
if (it == supportInfo.hwDecodeSupport) {
aSupportString.Append(" HW"_ns);
}
aSupportString.Append("\n"_ns);
}
// Remove any trailing newline characters
if (!aSupportString.IsEmpty()) {
aSupportString.Truncate(aSupportString.Length() - 1);
}
}
MCSInfo* MCSInfo::GetInstance() {
StaticMutexAutoLock lock(sInitMutex);
if (AppShutdown::IsInOrBeyond(ShutdownPhase::AppShutdownConfirmed)) {
CODEC_SUPPORT_LOG("In XPCOM shutdown - not returning MCSInfo instance!");
return nullptr;
}
if (!sInstance) {
sInstance = new MCSInfo();
}
return sInstance.get();
}
MCSInfo::MCSInfo() {
// Initialize hash tables
mHashTableMCS.reset(new nsTHashMap<MediaCodecsSupport, CodecDefinition>());
mHashTableCodec.reset(new nsTHashMap<MediaCodec, CodecDefinition>());
for (const auto& it : GetAllCodecDefinitions()) {
// Insert MediaCodecsSupport values as keys
mHashTableMCS->InsertOrUpdate(it.swDecodeSupport, it);
mHashTableMCS->InsertOrUpdate(it.hwDecodeSupport, it);
// Insert codec enum values as keys
mHashTableCodec->InsertOrUpdate(it.codec, it);
}
GetMainThreadSerialEventTarget()->Dispatch(
NS_NewRunnableFunction("MCSInfo::MCSInfo", [&] {
// Ensure hash tables freed on shutdown
RunOnShutdown(
[&] {
mHashTableMCS.reset();
mHashTableString.reset();
mHashTableCodec.reset();
sInstance = nullptr;
},
ShutdownPhase::XPCOMShutdown);
}));
}
CodecDefinition MCSInfo::GetCodecDefinition(const MediaCodec& aCodec) {
CodecDefinition info;
MCSInfo* instance = GetInstance();
if (!instance) {
CODEC_SUPPORT_LOG("Can't get codec definition without a MCSInfo instance!");
} else if (!instance->mHashTableCodec->Get(aCodec, &info)) {
CODEC_SUPPORT_LOG("Could not find codec definition for codec enum: %d!",
static_cast<int>(aCodec));
}
return info;
}
std::array<CodecDefinition, 12> MCSInfo::GetAllCodecDefinitions() {
static constexpr std::array<CodecDefinition, 12> codecDefinitions = {
{{MediaCodec::H264, "H264", "video/avc",
MediaCodecsSupport::H264SoftwareDecode,
MediaCodecsSupport::H264HardwareDecode},
{MediaCodec::VP9, "VP9", "video/vp9",
MediaCodecsSupport::VP9SoftwareDecode,
MediaCodecsSupport::VP9HardwareDecode},
{MediaCodec::VP8, "VP8", "video/vp8",
MediaCodecsSupport::VP8SoftwareDecode,
MediaCodecsSupport::VP8HardwareDecode},
{MediaCodec::AV1, "AV1", "video/av1",
MediaCodecsSupport::AV1SoftwareDecode,
MediaCodecsSupport::AV1HardwareDecode},
{MediaCodec::Theora, "Theora", "video/theora",
MediaCodecsSupport::TheoraSoftwareDecode,
MediaCodecsSupport::TheoraHardwareDecode},
{MediaCodec::AAC, "AAC", "audio/mp4a-latm",
MediaCodecsSupport::AACSoftwareDecode,
MediaCodecsSupport::AACHardwareDecode},
{MediaCodec::MP3, "MP3", "audio/mpeg",
MediaCodecsSupport::MP3SoftwareDecode,
MediaCodecsSupport::MP3HardwareDecode},
{MediaCodec::Opus, "Opus", "audio/opus",
MediaCodecsSupport::OpusSoftwareDecode,
MediaCodecsSupport::OpusHardwareDecode},
{MediaCodec::Vorbis, "Vorbis", "audio/vorbis",
MediaCodecsSupport::VorbisSoftwareDecode,
MediaCodecsSupport::VorbisHardwareDecode},
{MediaCodec::FLAC, "FLAC", "audio/flac",
MediaCodecsSupport::FLACSoftwareDecode,
MediaCodecsSupport::FLACHardwareDecode},
{MediaCodec::Wave, "Wave", "audio/x-wav",
MediaCodecsSupport::WaveSoftwareDecode,
MediaCodecsSupport::WaveHardwareDecode},
{MediaCodec::SENTINEL, "Undefined codec name",
"Undefined MIME type string", MediaCodecsSupport::SENTINEL,
MediaCodecsSupport::SENTINEL}}};
return codecDefinitions;
}
} // namespace mozilla::media
#undef CODEC_SUPPORT_LOG
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