Mirror of roytam1's UXP fork just in case Moonchild and Tobin decide to go after him
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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 "mozilla/Preferences.h"
#include "MediaResource.h"
#include "mozilla/dom/HTMLMediaElement.h"
#include "mozilla/Services.h"
#include "AndroidMediaPluginHost.h"
#include "nsAutoPtr.h"
#include "nsXPCOMStrings.h"
#include "nsISeekableStream.h"
#include "nsIGfxInfo.h"
#include "gfxCrashReporterUtils.h"
#include "prmem.h"
#include "prlink.h"
#include "AndroidMediaResourceServer.h"
#include "nsServiceManagerUtils.h"
#include "MPAPI.h"
#include "nsIPropertyBag2.h"
#if defined(ANDROID)
#include "android/log.h"
#define ALOG(args...) __android_log_print(ANDROID_LOG_INFO, "AndroidMediaPluginHost" , ## args)
#else
#define ALOG(args...) /* do nothing */
#endif
using namespace MPAPI;
Decoder::Decoder() :
mResource(nullptr), mPrivate(nullptr)
{
}
namespace mozilla {
static char* GetResource(Decoder *aDecoder)
{
return static_cast<char*>(aDecoder->mResource);
}
class GetIntPrefEvent : public Runnable {
public:
GetIntPrefEvent(const char* aPref, int32_t* aResult)
: mPref(aPref), mResult(aResult) {}
NS_IMETHOD Run() override {
return Preferences::GetInt(mPref, mResult);
}
private:
const char* mPref;
int32_t* mResult;
};
static bool GetIntPref(const char* aPref, int32_t* aResult)
{
// GetIntPref() is called on the decoder thread, but the Preferences API
// can only be called on the main thread. Post a runnable and wait.
NS_ENSURE_TRUE(aPref, false);
NS_ENSURE_TRUE(aResult, false);
nsCOMPtr<nsIRunnable> event = new GetIntPrefEvent(aPref, aResult);
return NS_SUCCEEDED(NS_DispatchToMainThread(event, NS_DISPATCH_SYNC));
}
static bool
GetSystemInfoString(const char *aKey, char *aResult, size_t aResultLength)
{
NS_ENSURE_TRUE(aKey, false);
NS_ENSURE_TRUE(aResult, false);
nsCOMPtr<nsIPropertyBag2> infoService = do_GetService("@mozilla.org/system-info;1");
NS_ASSERTION(infoService, "Could not find a system info service");
nsAutoCString key(aKey);
nsAutoCString info;
nsresult rv = infoService->GetPropertyAsACString(NS_ConvertUTF8toUTF16(key),
info);
NS_ENSURE_SUCCESS(rv, false);
strncpy(aResult, info.get(), aResultLength);
return true;
}
static PluginHost sPluginHost = {
nullptr,
nullptr,
nullptr,
nullptr,
GetIntPref,
GetSystemInfoString
};
// Return true if Omx decoding is supported on the device. This checks the
// built in whitelist/blacklist and preferences to see if that is overridden.
static bool IsOmxSupported()
{
bool forceEnabled =
Preferences::GetBool("stagefright.force-enabled", false);
bool disabled =
Preferences::GetBool("stagefright.disabled", false);
if (disabled) {
NS_WARNING("XXX stagefright disabled\n");
return false;
}
ScopedGfxFeatureReporter reporter("Stagefright", forceEnabled);
if (!forceEnabled) {
nsCOMPtr<nsIGfxInfo> gfxInfo = services::GetGfxInfo();
if (gfxInfo) {
int32_t status;
nsCString discardFailure;
if (NS_SUCCEEDED(gfxInfo->GetFeatureStatus(nsIGfxInfo::FEATURE_STAGEFRIGHT, discardFailure, &status))) {
if (status != nsIGfxInfo::FEATURE_STATUS_OK) {
NS_WARNING("XXX stagefright blacklisted\n");
return false;
}
}
}
}
reporter.SetSuccessful();
return true;
}
// Return the name of the shared library that implements Omx based decoding. This varies
// depending on libstagefright version installed on the device and whether it is B2G vs Android.
// nullptr is returned if Omx decoding is not supported on the device,
static const char* GetOmxLibraryName()
{
#if defined(ANDROID)
nsCOMPtr<nsIPropertyBag2> infoService = do_GetService("@mozilla.org/system-info;1");
NS_ASSERTION(infoService, "Could not find a system info service");
int32_t version;
nsresult rv = infoService->GetPropertyAsInt32(NS_LITERAL_STRING("version"), &version);
if (NS_SUCCEEDED(rv)) {
ALOG("Android Version is: %d", version);
}
nsAutoString release_version;
rv = infoService->GetPropertyAsAString(NS_LITERAL_STRING("release_version"), release_version);
if (NS_SUCCEEDED(rv)) {
ALOG("Android Release Version is: %s", NS_LossyConvertUTF16toASCII(release_version).get());
}
nsAutoString device;
rv = infoService->GetPropertyAsAString(NS_LITERAL_STRING("device"), device);
if (NS_SUCCEEDED(rv)) {
ALOG("Android Device is: %s", NS_LossyConvertUTF16toASCII(device).get());
}
nsAutoString manufacturer;
rv = infoService->GetPropertyAsAString(NS_LITERAL_STRING("manufacturer"), manufacturer);
if (NS_SUCCEEDED(rv)) {
ALOG("Android Manufacturer is: %s", NS_LossyConvertUTF16toASCII(manufacturer).get());
}
nsAutoString hardware;
rv = infoService->GetPropertyAsAString(NS_LITERAL_STRING("hardware"), hardware);
if (NS_SUCCEEDED(rv)) {
ALOG("Android Hardware is: %s", NS_LossyConvertUTF16toASCII(hardware).get());
}
#endif
if (!IsOmxSupported())
return nullptr;
#if defined(ANDROID)
if (version >= 17) {
return "libomxpluginkk.so";
}
// Ice Cream Sandwich and Jellybean
return "libomxplugin.so";
#else
return nullptr;
#endif
}
AndroidMediaPluginHost::AndroidMediaPluginHost() {
MOZ_COUNT_CTOR(AndroidMediaPluginHost);
MOZ_ASSERT(NS_IsMainThread());
mResourceServer = AndroidMediaResourceServer::Start();
const char* name = GetOmxLibraryName();
ALOG("Loading OMX Plugin: %s", name ? name : "nullptr");
if (name) {
char *path = PR_GetLibraryFilePathname("libxul.so", (PRFuncPtr) GetOmxLibraryName);
PRLibrary *lib = nullptr;
if (path) {
nsAutoCString libpath(path);
PR_Free(path);
int32_t slash = libpath.RFindChar('/');
if (slash != kNotFound) {
libpath.Truncate(slash + 1);
libpath.Append(name);
lib = PR_LoadLibrary(libpath.get());
}
}
if (!lib)
lib = PR_LoadLibrary(name);
if (lib) {
Manifest *manifest = static_cast<Manifest *>(PR_FindSymbol(lib, "MPAPI_MANIFEST"));
if (manifest) {
mPlugins.AppendElement(manifest);
ALOG("OMX plugin successfully loaded");
}
}
}
}
AndroidMediaPluginHost::~AndroidMediaPluginHost() {
mResourceServer->Stop();
MOZ_COUNT_DTOR(AndroidMediaPluginHost);
}
bool AndroidMediaPluginHost::FindDecoder(const nsACString& aMimeType, const char* const** aCodecs)
{
const char *chars;
size_t len = NS_CStringGetData(aMimeType, &chars, nullptr);
for (size_t n = 0; n < mPlugins.Length(); ++n) {
Manifest *plugin = mPlugins[n];
const char* const *codecs;
if (plugin->CanDecode(chars, len, &codecs)) {
if (aCodecs)
*aCodecs = codecs;
return true;
}
}
return false;
}
MPAPI::Decoder *AndroidMediaPluginHost::CreateDecoder(MediaResource *aResource, const nsACString& aMimeType)
{
NS_ENSURE_TRUE(aResource, nullptr);
nsAutoPtr<Decoder> decoder(new Decoder());
if (!decoder) {
return nullptr;
}
const char *chars;
size_t len = NS_CStringGetData(aMimeType, &chars, nullptr);
for (size_t n = 0; n < mPlugins.Length(); ++n) {
Manifest *plugin = mPlugins[n];
const char* const *codecs;
if (!plugin->CanDecode(chars, len, &codecs)) {
continue;
}
nsCString url;
nsresult rv = mResourceServer->AddResource(aResource, url);
if (NS_FAILED (rv)) continue;
decoder->mResource = strdup(url.get());
if (plugin->CreateDecoder(&sPluginHost, decoder, chars, len)) {
return decoder.forget();
}
}
return nullptr;
}
void AndroidMediaPluginHost::DestroyDecoder(Decoder *aDecoder)
{
aDecoder->DestroyDecoder(aDecoder);
char* resource = GetResource(aDecoder);
if (resource) {
// resource *shouldn't* be null, but check anyway just in case the plugin
// decoder does something stupid.
mResourceServer->RemoveResource(nsCString(resource));
free(resource);
}
delete aDecoder;
}
AndroidMediaPluginHost *sAndroidMediaPluginHost = nullptr;
AndroidMediaPluginHost *EnsureAndroidMediaPluginHost()
{
MOZ_DIAGNOSTIC_ASSERT(NS_IsMainThread());
if (!sAndroidMediaPluginHost) {
sAndroidMediaPluginHost = new AndroidMediaPluginHost();
}
return sAndroidMediaPluginHost;
}
AndroidMediaPluginHost *GetAndroidMediaPluginHost()
{
MOZ_ASSERT(sAndroidMediaPluginHost);
return sAndroidMediaPluginHost;
}
void AndroidMediaPluginHost::Shutdown()
{
delete sAndroidMediaPluginHost;
sAndroidMediaPluginHost = nullptr;
}
} // namespace mozilla