gecko/dom/media/fmp4/MP4Decoder.cpp

380 lines
10 KiB
C++

/* -*- 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 "MP4Decoder.h"
#include "MP4Reader.h"
#include "MediaDecoderStateMachine.h"
#include "MediaFormatReader.h"
#include "MP4Demuxer.h"
#include "mozilla/Preferences.h"
#include "nsCharSeparatedTokenizer.h"
#ifdef MOZ_EME
#include "mozilla/CDMProxy.h"
#endif
#include "mozilla/Logging.h"
#ifdef XP_WIN
#include "mozilla/WindowsVersion.h"
#endif
#ifdef MOZ_WIDGET_ANDROID
#include "nsIGfxInfo.h"
#include "AndroidBridge.h"
#endif
#include "mozilla/layers/LayersTypes.h"
namespace mozilla {
MediaDecoderStateMachine* MP4Decoder::CreateStateMachine()
{
bool useFormatDecoder =
Preferences::GetBool("media.format-reader.mp4", true);
nsRefPtr<MediaDecoderReader> reader = useFormatDecoder ?
static_cast<MediaDecoderReader*>(new MediaFormatReader(this, new MP4Demuxer(GetResource()))) :
static_cast<MediaDecoderReader*>(new MP4Reader(this));
return new MediaDecoderStateMachine(this, reader);
}
#ifdef MOZ_EME
nsresult
MP4Decoder::SetCDMProxy(CDMProxy* aProxy)
{
nsresult rv = MediaDecoder::SetCDMProxy(aProxy);
NS_ENSURE_SUCCESS(rv, rv);
if (aProxy) {
// The MP4Reader can't decrypt EME content until it has a CDMProxy,
// and the CDMProxy knows the capabilities of the CDM. The MP4Reader
// remains in "waiting for resources" state until then.
CDMCaps::AutoLock caps(aProxy->Capabilites());
nsCOMPtr<nsIRunnable> task(
NS_NewRunnableMethod(this, &MediaDecoder::NotifyWaitingForResourcesStatusChanged));
caps.CallOnMainThreadWhenCapsAvailable(task);
}
return NS_OK;
}
#endif
static bool
IsSupportedAudioCodec(const nsAString& aCodec,
bool& aOutContainsAAC,
bool& aOutContainsMP3)
{
// AAC-LC or HE-AAC in M4A.
aOutContainsAAC = aCodec.EqualsASCII("mp4a.40.2") ||
aCodec.EqualsASCII("mp4a.40.5");
if (aOutContainsAAC) {
return true;
}
#ifndef MOZ_GONK_MEDIACODEC // B2G doesn't support MP3 in MP4 yet.
aOutContainsMP3 = aCodec.EqualsASCII("mp3");
if (aOutContainsMP3) {
return true;
}
#else
aOutContainsMP3 = false;
#endif
return false;
}
static bool
IsSupportedH264Codec(const nsAString& aCodec)
{
int16_t profile = 0, level = 0;
if (!ExtractH264CodecDetails(aCodec, profile, level)) {
return false;
}
#ifdef XP_WIN
// Disable 4k video on windows vista since it performs poorly.
if (!IsWin7OrLater() &&
level >= H264_LEVEL_5) {
return false;
}
#endif
// Just assume what we can play on all platforms the codecs/formats that
// WMF can play, since we don't have documentation about what other
// platforms can play... According to the WMF documentation:
// http://msdn.microsoft.com/en-us/library/windows/desktop/dd797815%28v=vs.85%29.aspx
// "The Media Foundation H.264 video decoder is a Media Foundation Transform
// that supports decoding of Baseline, Main, and High profiles, up to level
// 5.1.". We also report that we can play Extended profile, as there are
// bitstreams that are Extended compliant that are also Baseline compliant.
return level >= H264_LEVEL_1 &&
level <= H264_LEVEL_5_1 &&
(profile == H264_PROFILE_BASE ||
profile == H264_PROFILE_MAIN ||
profile == H264_PROFILE_EXTENDED ||
profile == H264_PROFILE_HIGH);
}
/* static */
bool
MP4Decoder::CanHandleMediaType(const nsACString& aType,
const nsAString& aCodecs,
bool& aOutContainsAAC,
bool& aOutContainsH264,
bool& aOutContainsMP3)
{
if (!IsEnabled()) {
return false;
}
if (aType.EqualsASCII("audio/mp4") || aType.EqualsASCII("audio/x-m4a")) {
return MP4Decoder::CanCreateAACDecoder() &&
(aCodecs.IsEmpty() ||
IsSupportedAudioCodec(aCodecs,
aOutContainsAAC,
aOutContainsMP3));
}
if (!aType.EqualsASCII("video/mp4") ||
!MP4Decoder::CanCreateH264Decoder()) {
return false;
}
// Verify that all the codecs specifed are ones that we expect that
// we can play.
nsCharSeparatedTokenizer tokenizer(aCodecs, ',');
bool expectMoreTokens = false;
while (tokenizer.hasMoreTokens()) {
const nsSubstring& token = tokenizer.nextToken();
expectMoreTokens = tokenizer.separatorAfterCurrentToken();
if (IsSupportedAudioCodec(token,
aOutContainsAAC,
aOutContainsMP3)) {
continue;
}
if (IsSupportedH264Codec(token)) {
aOutContainsH264 = true;
continue;
}
return false;
}
if (expectMoreTokens) {
// Last codec name was empty
return false;
}
return true;
}
static bool
IsFFmpegAvailable()
{
#ifndef MOZ_FFMPEG
return false;
#else
return Preferences::GetBool("media.fragmented-mp4.ffmpeg.enabled", false);
#endif
}
static bool
IsAppleAvailable()
{
#ifndef MOZ_APPLEMEDIA
// Not the right platform.
return false;
#else
return Preferences::GetBool("media.apple.mp4.enabled", false);
#endif
}
static bool
IsAndroidAvailable()
{
#ifndef MOZ_WIDGET_ANDROID
return false;
#else
// We need android.media.MediaCodec which exists in API level 16 and higher.
return AndroidBridge::Bridge()->GetAPIVersion() >= 16;
#endif
}
static bool
IsGonkMP4DecoderAvailable()
{
#ifndef MOZ_GONK_MEDIACODEC
return false;
#else
return Preferences::GetBool("media.fragmented-mp4.gonk.enabled", false);
#endif
}
static bool
IsGMPDecoderAvailable()
{
return Preferences::GetBool("media.fragmented-mp4.gmp.enabled", false);
}
static bool
HavePlatformMPEGDecoders()
{
return Preferences::GetBool("media.fragmented-mp4.use-blank-decoder") ||
#ifdef XP_WIN
// We have H.264/AAC platform decoders on Windows Vista and up.
IsVistaOrLater() ||
#endif
IsAndroidAvailable() ||
IsFFmpegAvailable() ||
IsAppleAvailable() ||
IsGonkMP4DecoderAvailable() ||
IsGMPDecoderAvailable() ||
// TODO: Other platforms...
false;
}
/* static */
bool
MP4Decoder::IsEnabled()
{
return Preferences::GetBool("media.fragmented-mp4.enabled") &&
HavePlatformMPEGDecoders();
}
static const uint8_t sTestH264ExtraData[] = {
0x01, 0x64, 0x00, 0x0a, 0xff, 0xe1, 0x00, 0x17, 0x67, 0x64,
0x00, 0x0a, 0xac, 0xd9, 0x44, 0x26, 0x84, 0x00, 0x00, 0x03,
0x00, 0x04, 0x00, 0x00, 0x03, 0x00, 0xc8, 0x3c, 0x48, 0x96,
0x58, 0x01, 0x00, 0x06, 0x68, 0xeb, 0xe3, 0xcb, 0x22, 0xc0
};
static already_AddRefed<MediaDataDecoder>
CreateTestH264Decoder(layers::LayersBackend aBackend,
VideoInfo& aConfig)
{
aConfig.mMimeType = "video/avc";
aConfig.mId = 1;
aConfig.mDuration = 40000;
aConfig.mMediaTime = 0;
aConfig.mDisplay = aConfig.mImage = nsIntSize(64, 64);
aConfig.mExtraData = new MediaByteBuffer();
aConfig.mExtraData->AppendElements(sTestH264ExtraData,
MOZ_ARRAY_LENGTH(sTestH264ExtraData));
PlatformDecoderModule::Init();
nsRefPtr<PlatformDecoderModule> platform = PlatformDecoderModule::Create();
if (!platform) {
return nullptr;
}
nsRefPtr<MediaDataDecoder> decoder(
platform->CreateDecoder(aConfig, nullptr, nullptr, aBackend, nullptr));
if (!decoder) {
return nullptr;
}
nsresult rv = decoder->Init();
NS_ENSURE_SUCCESS(rv, nullptr);
return decoder.forget();
}
/* static */ bool
MP4Decoder::IsVideoAccelerated(layers::LayersBackend aBackend)
{
VideoInfo config;
nsRefPtr<MediaDataDecoder> decoder(CreateTestH264Decoder(aBackend, config));
if (!decoder) {
return false;
}
bool result = decoder->IsHardwareAccelerated();
decoder->Shutdown();
return result;
}
/* static */ bool
MP4Decoder::CanCreateH264Decoder()
{
#ifdef XP_WIN
static bool haveCachedResult = false;
static bool result = false;
if (haveCachedResult) {
return result;
}
VideoInfo config;
nsRefPtr<MediaDataDecoder> decoder(
CreateTestH264Decoder(layers::LayersBackend::LAYERS_BASIC, config));
if (decoder) {
decoder->Shutdown();
result = true;
}
haveCachedResult = true;
return result;
#else
return IsEnabled();
#endif
}
#ifdef XP_WIN
static already_AddRefed<MediaDataDecoder>
CreateTestAACDecoder(AudioInfo& aConfig)
{
PlatformDecoderModule::Init();
nsRefPtr<PlatformDecoderModule> platform = PlatformDecoderModule::Create();
if (!platform) {
return nullptr;
}
nsRefPtr<MediaDataDecoder> decoder(
platform->CreateDecoder(aConfig, nullptr, nullptr));
if (!decoder) {
return nullptr;
}
nsresult rv = decoder->Init();
NS_ENSURE_SUCCESS(rv, nullptr);
return decoder.forget();
}
// bipbop.mp4's extradata/config...
static const uint8_t sTestAACExtraData[] = {
0x03, 0x80, 0x80, 0x80, 0x22, 0x00, 0x02, 0x00, 0x04, 0x80,
0x80, 0x80, 0x14, 0x40, 0x15, 0x00, 0x00, 0x00, 0x00, 0x00,
0x11, 0x51, 0x00, 0x00, 0x11, 0x51, 0x05, 0x80, 0x80, 0x80,
0x02, 0x13, 0x90, 0x06, 0x80, 0x80, 0x80, 0x01, 0x02
};
static const uint8_t sTestAACConfig[] = { 0x13, 0x90 };
#endif // XP_WIN
/* static */ bool
MP4Decoder::CanCreateAACDecoder()
{
#ifdef XP_WIN
static bool haveCachedResult = false;
static bool result = false;
if (haveCachedResult) {
return result;
}
AudioInfo config;
config.mMimeType = "audio/mp4a-latm";
config.mRate = 22050;
config.mChannels = 2;
config.mBitDepth = 16;
config.mProfile = 2;
config.mExtendedProfile = 2;
config.mCodecSpecificConfig->AppendElements(sTestAACConfig,
MOZ_ARRAY_LENGTH(sTestAACConfig));
config.mExtraData->AppendElements(sTestAACExtraData,
MOZ_ARRAY_LENGTH(sTestAACExtraData));
nsRefPtr<MediaDataDecoder> decoder(CreateTestAACDecoder(config));
if (decoder) {
decoder->Shutdown();
result = true;
}
haveCachedResult = true;
return result;
#else
return IsEnabled();
#endif
}
} // namespace mozilla