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Bug 1123535 - Don't hold decoder monitor while calling PreReadMetadata. r=kentuckyfriedtakahe

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This commit is contained in:
Chris Pearce 2015-01-29 21:50:48 +13:00
parent 4d9dd5cfe9
commit 2e11d0c8f6
1 changed files with 17 additions and 17 deletions
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34
dom/media/MediaDecoderStateMachine.cpp
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@ -1578,9 +1578,9 @@ void MediaDecoderStateMachine::StartDecoding()
void MediaDecoderStateMachine::StartWaitForResources()
{
NS_ASSERTION(OnStateMachineThread() || OnDecodeThread(),
"Should be on state machine or decode thread.");
AssertCurrentThreadInMonitor();
ReentrantMonitorAutoEnter mon(mDecoder->GetReentrantMonitor());
NS_ASSERTION(OnDecodeThread(),
"Should be on decode thread.");
SetState(DECODER_STATE_WAIT_FOR_RESOURCES);
DECODER_LOG("StartWaitForResources");
}
@ -2179,28 +2179,28 @@ nsresult MediaDecoderStateMachine::DecodeMetadata()
MOZ_ASSERT(mState == DECODER_STATE_DECODING_METADATA);
DECODER_LOG("Decoding Media Headers");
mReader->PreReadMetadata();
if (mReader->IsWaitingMediaResources()) {
StartWaitForResources();
return NS_OK;
}
nsresult res;
MediaInfo info;
bool isAwaitingResources = false;
{
ReentrantMonitorAutoExit exitMon(mDecoder->GetReentrantMonitor());
res = mReader->ReadMetadata(&info, getter_Transfers(mMetadataTags));
}
mReader->PreReadMetadata();
if (NS_SUCCEEDED(res)) {
if (mState == DECODER_STATE_DECODING_METADATA &&
mReader->IsWaitingMediaResources()) {
// change state to DECODER_STATE_WAIT_FOR_RESOURCES
if (mReader->IsWaitingMediaResources()) {
StartWaitForResources();
// affect values only if ReadMetadata succeeds
return NS_OK;
}
res = mReader->ReadMetadata(&info, getter_Transfers(mMetadataTags));
isAwaitingResources = mReader->IsWaitingMediaResources();
}
if (NS_SUCCEEDED(res) &&
mState == DECODER_STATE_DECODING_METADATA &&
isAwaitingResources) {
// change state to DECODER_STATE_WAIT_FOR_RESOURCES
StartWaitForResources();
// affect values only if ReadMetadata succeeds
return NS_OK;
}
if (NS_SUCCEEDED(res)) {