void
ChannelMediaDecoder::NotifyDownloadEnded(nsresult aStatus)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_DIAGNOSTIC_ASSERT(!IsShutdown());
AbstractThread::AutoEnter context(AbstractMainThread());
LOG("NotifyDownloadEnded, status=%" PRIx32, static_cast<uint32_t>(aStatus));
if (aStatus == NS_BINDING_ABORTED) {
// Download has been cancelled by user.
GetOwner()->LoadAborted();
return;
}
UpdatePlaybackRate();
if (NS_SUCCEEDED(aStatus)) {
// A final progress event will be fired by the MediaResource calling
// DownloadSuspended on the element.
// Also NotifySuspendedStatusChanged() will be called to update readyState
// if download ended with success.
} else if (aStatus != NS_BASE_STREAM_CLOSED) {
NetworkError();
}
}
void
ChannelMediaDecoder::DownloadProgressed()
{
MOZ_ASSERT(NS_IsMainThread());
AbstractThread::AutoEnter context(AbstractMainThread());
MediaDecoder::DownloadProgressed();
UpdatePlaybackRate();
mResource->ThrottleReadahead(ShouldThrottleDownload());
}
void
ChannelMediaDecoder::DurationChanged()
{
MOZ_ASSERT(NS_IsMainThread());
AbstractThread::AutoEnter context(AbstractMainThread());
MediaDecoder::DurationChanged();
// Duration has changed so we should recompute playback rate
UpdatePlaybackRate();
}
void
ChannelMediaDecoder::DurationChanged()
{
MOZ_ASSERT(NS_IsMainThread());
AbstractThread::AutoEnter context(AbstractMainThread());
MediaDecoder::DurationChanged();
// Duration has changed so we should recompute playback rate
nsCOMPtr<nsIRunnable> r =
NS_NewRunnableFunction("ChannelMediaDecoder::UpdatePlaybackRate", [
stats = mPlaybackStatistics,
res = RefPtr<BaseMediaResource>(mResource),
duration = mDuration
]() {
auto rate = ComputePlaybackRate(stats, res, duration);
UpdatePlaybackRate(rate, res);
});
nsresult rv = GetStateMachine()->OwnerThread()->Dispatch(r.forget());
MOZ_DIAGNOSTIC_ASSERT(NS_SUCCEEDED(rv));
Unused << rv;
}
void
ChannelMediaDecoder::NotifyDownloadEnded(nsresult aStatus)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_DIAGNOSTIC_ASSERT(!IsShutdown());
AbstractThread::AutoEnter context(AbstractMainThread());
LOG("NotifyDownloadEnded, status=%" PRIx32, static_cast<uint32_t>(aStatus));
if (NS_SUCCEEDED(aStatus)) {
// Download ends successfully. This is a stream with a finite length.
GetStateMachine()->DispatchIsLiveStream(false);
}
MediaDecoderOwner* owner = GetOwner();
if (NS_SUCCEEDED(aStatus) || aStatus == NS_BASE_STREAM_CLOSED) {
nsCOMPtr<nsIRunnable> r =
NS_NewRunnableFunction("ChannelMediaDecoder::UpdatePlaybackRate", [
stats = mPlaybackStatistics,
res = RefPtr<BaseMediaResource>(mResource),
duration = mDuration
]() {
auto rate = ComputePlaybackRate(stats, res, duration);
UpdatePlaybackRate(rate, res);
});
nsresult rv = GetStateMachine()->OwnerThread()->Dispatch(r.forget());
MOZ_DIAGNOSTIC_ASSERT(NS_SUCCEEDED(rv));
Unused << rv;
owner->DownloadSuspended();
// NotifySuspendedStatusChanged will tell the element that download
// has been suspended "by the cache", which is true since we never
// download anything. The element can then transition to HAVE_ENOUGH_DATA.
owner->NotifySuspendedByCache(true);
} else if (aStatus == NS_BINDING_ABORTED) {
// Download has been cancelled by user.
owner->LoadAborted();
} else {
NetworkError(MediaResult(aStatus, "Download aborted"));
}
}
void
ChannelMediaDecoder::DownloadProgressed()
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_DIAGNOSTIC_ASSERT(!IsShutdown());
GetOwner()->DownloadProgressed();
using StatsPromise = MozPromise<MediaStatistics, bool, true>;
InvokeAsync(GetStateMachine()->OwnerThread(),
__func__,
[
playbackStats = mPlaybackStatistics,
res = RefPtr<BaseMediaResource>(mResource),
duration = mDuration,
pos = mPlaybackPosition
]() {
auto rate = ComputePlaybackRate(playbackStats, res, duration);
UpdatePlaybackRate(rate, res);
MediaStatistics stats = GetStatistics(rate, res, pos);
return StatsPromise::CreateAndResolve(stats, __func__);
})
->Then(
mAbstractMainThread,
__func__,
[ =, self = RefPtr<ChannelMediaDecoder>(this) ](MediaStatistics aStats) {
if (IsShutdown()) {
return;
}
mCanPlayThrough = aStats.CanPlayThrough();
GetStateMachine()->DispatchCanPlayThrough(mCanPlayThrough);
mResource->ThrottleReadahead(ShouldThrottleDownload(aStats));
// Update readyState since mCanPlayThrough might have changed.
GetOwner()->UpdateReadyState();
},
[]() { MOZ_ASSERT_UNREACHABLE("Promise not resolved"); });
}
