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Bug 1007223 - r=ehsan

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This commit is contained in:
Paul Adenot 2014-05-13 14:09:44 +02:00
parent 6b08a02243
commit c6262a6492
4 changed files with 18 additions and 19 deletions
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19
content/media/webaudio/AudioContext.cpp
View File

@ -430,22 +430,29 @@ AudioContext::DecodeAudioData(const ArrayBuffer& aBuffer,
DecodeSuccessCallback& aSuccessCallback,
const Optional<OwningNonNull<DecodeErrorCallback> >& aFailureCallback)
{
AutoJSAPI jsapi;
JSContext* cx = jsapi.cx();
JSAutoCompartment ac(cx, aBuffer.Obj());
// Neuter the array buffer
size_t length = aBuffer.Length();
JS::RootedObject obj(cx, aBuffer.Obj());
uint8_t* data = static_cast<uint8_t*>(JS_StealArrayBufferContents(cx, obj));
// Sniff the content of the media.
// Failed type sniffing will be handled by AsyncDecodeMedia.
nsAutoCString contentType;
NS_SniffContent(NS_DATA_SNIFFER_CATEGORY, nullptr,
aBuffer.Data(), aBuffer.Length(),
contentType);
NS_SniffContent(NS_DATA_SNIFFER_CATEGORY, nullptr, data, length, contentType);
nsRefPtr<DecodeErrorCallback> failureCallback;
if (aFailureCallback.WasPassed()) {
failureCallback = &aFailureCallback.Value();
}
nsRefPtr<WebAudioDecodeJob> job(
new WebAudioDecodeJob(contentType, this, aBuffer,
new WebAudioDecodeJob(contentType, this,
&aSuccessCallback, failureCallback));
mDecoder.AsyncDecodeMedia(contentType.get(),
aBuffer.Data(), aBuffer.Length(), *job);
mDecoder.AsyncDecodeMedia(contentType.get(), data, length, *job);
// Transfer the ownership to mDecodeJobs
mDecodeJobs.AppendElement(job);
}

11
content/media/webaudio/MediaBufferDecoder.cpp
View File

@ -30,7 +30,6 @@ NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(WebAudioDecodeJob)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mOutput)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mSuccessCallback)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mFailureCallback)
tmp->mArrayBuffer = nullptr;
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(WebAudioDecodeJob)
@ -42,9 +41,7 @@ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(WebAudioDecodeJob)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN(WebAudioDecodeJob)
NS_IMPL_CYCLE_COLLECTION_TRACE_JS_MEMBER_CALLBACK(mArrayBuffer)
NS_IMPL_CYCLE_COLLECTION_TRACE_END
NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(WebAudioDecodeJob, AddRef)
NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(WebAudioDecodeJob, Release)
@ -143,6 +140,7 @@ private:
// Destruct MediaDecoderReader first.
mDecoderReader = nullptr;
mBufferDecoder = nullptr;
JS_free(nullptr, mBuffer);
}
private:
@ -482,7 +480,6 @@ MediaBufferDecoder::EnsureThreadPoolInitialized()
WebAudioDecodeJob::WebAudioDecodeJob(const nsACString& aContentType,
AudioContext* aContext,
const ArrayBuffer& aBuffer,
DecodeSuccessCallback* aSuccessCallback,
DecodeErrorCallback* aFailureCallback)
: mContentType(aContentType)
@ -495,18 +492,12 @@ WebAudioDecodeJob::WebAudioDecodeJob(const nsACString& aContentType,
MOZ_ASSERT(aSuccessCallback);
MOZ_ASSERT(NS_IsMainThread());
MOZ_COUNT_CTOR(WebAudioDecodeJob);
mArrayBuffer = aBuffer.Obj();
mozilla::HoldJSObjects(this);
}
WebAudioDecodeJob::~WebAudioDecodeJob()
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_COUNT_DTOR(WebAudioDecodeJob);
mArrayBuffer = nullptr;
mozilla::DropJSObjects(this);
}
void

2
content/media/webaudio/MediaBufferDecoder.h
View File

@ -32,7 +32,6 @@ struct WebAudioDecodeJob MOZ_FINAL
// The callbacks are only necessary for asynchronous operation.
WebAudioDecodeJob(const nsACString& aContentType,
dom::AudioContext* aContext,
const dom::ArrayBuffer& aBuffer,
dom::DecodeSuccessCallback* aSuccessCallback = nullptr,
dom::DecodeErrorCallback* aFailureCallback = nullptr);
~WebAudioDecodeJob();
@ -59,7 +58,6 @@ struct WebAudioDecodeJob MOZ_FINAL
size_t SizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
JS::Heap<JSObject*> mArrayBuffer;
nsCString mContentType;
uint32_t mWriteIndex;
nsRefPtr<dom::AudioContext> mContext;

5
content/media/webaudio/test/test_mediaDecoding.html
View File

@ -311,6 +311,9 @@ function runResampling(test, response, callback) {
}
function runTest(test, response, callback) {
// We need to copy the array here, because decodeAudioData is going to neuter
// the array.
var compressedAudio = response.slice(0);
var expectCallback = false;
var cx = new OfflineAudioContext(test.numberOfChannels || 1,
test.frames || 1, test.sampleRate);
@ -322,7 +325,7 @@ function runTest(test, response, callback) {
test.expectedBuffer = asyncResult;
test.nativeContext = cx;
runResampling(test, response, callback);
runResampling(test, compressedAudio, callback);
}, function onFailure() {
ok(expectCallback, "Failure callback should fire asynchronously");
ok(!test.valid, "Did expect failure for test " + test.url);