gecko/dom/media/fmp4/PlatformDecoderModule.cpp

171 lines
4.5 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 "PlatformDecoderModule.h"
#ifdef XP_WIN
#include "WMFDecoderModule.h"
#endif
#ifdef MOZ_FFMPEG
#include "FFmpegRuntimeLinker.h"
#endif
#ifdef MOZ_APPLEMEDIA
#include "AppleDecoderModule.h"
#endif
#ifdef MOZ_GONK_MEDIACODEC
#include "GonkDecoderModule.h"
#endif
#ifdef MOZ_WIDGET_ANDROID
#include "AndroidDecoderModule.h"
#endif
#include "mozilla/Preferences.h"
#ifdef MOZ_EME
#include "EMEDecoderModule.h"
#include "mozilla/CDMProxy.h"
#endif
#include "SharedThreadPool.h"
#include "MediaTaskQueue.h"
namespace mozilla {
extern PlatformDecoderModule* CreateBlankDecoderModule();
bool PlatformDecoderModule::sUseBlankDecoder = false;
bool PlatformDecoderModule::sFFmpegDecoderEnabled = false;
bool PlatformDecoderModule::sGonkDecoderEnabled = false;
bool PlatformDecoderModule::sAndroidMCDecoderEnabled = false;
bool PlatformDecoderModule::sAndroidMCDecoderPreferred = false;
/* static */
void
PlatformDecoderModule::Init()
{
MOZ_ASSERT(NS_IsMainThread());
static bool alreadyInitialized = false;
if (alreadyInitialized) {
return;
}
alreadyInitialized = true;
Preferences::AddBoolVarCache(&sUseBlankDecoder,
"media.fragmented-mp4.use-blank-decoder");
Preferences::AddBoolVarCache(&sFFmpegDecoderEnabled,
"media.fragmented-mp4.ffmpeg.enabled", false);
#ifdef MOZ_GONK_MEDIACODEC
Preferences::AddBoolVarCache(&sGonkDecoderEnabled,
"media.fragmented-mp4.gonk.enabled", false);
#endif
#ifdef MOZ_WIDGET_ANDROID
Preferences::AddBoolVarCache(&sAndroidMCDecoderEnabled,
"media.fragmented-mp4.android-media-codec.enabled", false);
Preferences::AddBoolVarCache(&sAndroidMCDecoderPreferred,
"media.fragmented-mp4.android-media-codec.preferred", false);
#endif
#ifdef XP_WIN
WMFDecoderModule::Init();
#endif
#ifdef MOZ_APPLEMEDIA
AppleDecoderModule::Init();
#endif
}
#ifdef MOZ_EME
/* static */
PlatformDecoderModule*
PlatformDecoderModule::CreateCDMWrapper(CDMProxy* aProxy,
bool aHasAudio,
bool aHasVideo,
MediaTaskQueue* aTaskQueue)
{
bool cdmDecodesAudio;
bool cdmDecodesVideo;
{
CDMCaps::AutoLock caps(aProxy->Capabilites());
cdmDecodesAudio = caps.CanDecryptAndDecodeAudio();
cdmDecodesVideo = caps.CanDecryptAndDecodeVideo();
}
nsAutoPtr<PlatformDecoderModule> pdm;
if ((!cdmDecodesAudio && aHasAudio) || (!cdmDecodesVideo && aHasVideo)) {
// The CDM itself can't decode. We need to wrap a PDM to decode the
// decrypted output of the CDM.
pdm = Create();
if (!pdm) {
return nullptr;
}
}
return new EMEDecoderModule(aProxy,
pdm.forget(),
cdmDecodesAudio,
cdmDecodesVideo);
}
#endif
/* static */
PlatformDecoderModule*
PlatformDecoderModule::Create()
{
// Note: This runs on the decode thread.
MOZ_ASSERT(!NS_IsMainThread());
#ifdef MOZ_WIDGET_ANDROID
if(sAndroidMCDecoderPreferred && sAndroidMCDecoderEnabled){
return new AndroidDecoderModule();
}
#endif
if (sUseBlankDecoder) {
return CreateBlankDecoderModule();
}
#ifdef XP_WIN
nsAutoPtr<WMFDecoderModule> m(new WMFDecoderModule());
if (NS_SUCCEEDED(m->Startup())) {
return m.forget();
}
#endif
#ifdef MOZ_FFMPEG
if (sFFmpegDecoderEnabled) {
nsAutoPtr<PlatformDecoderModule> m(FFmpegRuntimeLinker::CreateDecoderModule());
if (m) {
return m.forget();
}
}
#endif
#ifdef MOZ_APPLEMEDIA
nsAutoPtr<AppleDecoderModule> m(new AppleDecoderModule());
if (NS_SUCCEEDED(m->Startup())) {
return m.forget();
}
#endif
#ifdef MOZ_GONK_MEDIACODEC
if (sGonkDecoderEnabled) {
return new GonkDecoderModule();
}
#endif
#ifdef MOZ_WIDGET_ANDROID
if(sAndroidMCDecoderEnabled){
return new AndroidDecoderModule();
}
#endif
return nullptr;
}
bool
PlatformDecoderModule::SupportsAudioMimeType(const char* aMimeType)
{
return !strcmp(aMimeType, "audio/mp4a-latm");
}
bool
PlatformDecoderModule::SupportsVideoMimeType(const char* aMimeType)
{
return !strcmp(aMimeType, "video/mp4") || !strcmp(aMimeType, "video/avc");
}
} // namespace mozilla