mirror of
https://github.com/classilla/tenfourfox.git
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260 lines
6.3 KiB
C++
260 lines
6.3 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "GMPAudioDecoder.h"
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#include "nsServiceManagerUtils.h"
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#include "MediaInfo.h"
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#include "GMPDecoderModule.h"
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namespace mozilla {
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#if defined(DEBUG)
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bool IsOnGMPThread()
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{
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nsCOMPtr<mozIGeckoMediaPluginService> mps = do_GetService("@mozilla.org/gecko-media-plugin-service;1");
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MOZ_ASSERT(mps);
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nsCOMPtr<nsIThread> gmpThread;
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nsresult rv = mps->GetThread(getter_AddRefs(gmpThread));
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MOZ_ASSERT(NS_SUCCEEDED(rv) && gmpThread);
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return NS_GetCurrentThread() == gmpThread;
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}
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#endif
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void
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AudioCallbackAdapter::Decoded(const nsTArray<int16_t>& aPCM, uint64_t aTimeStamp, uint32_t aChannels, uint32_t aRate)
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{
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MOZ_ASSERT(IsOnGMPThread());
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if (aRate == 0 || aChannels == 0) {
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NS_WARNING("Invalid rate or num channels returned on GMP audio samples");
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mCallback->Error();
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return;
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}
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size_t numFrames = aPCM.Length() / aChannels;
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MOZ_ASSERT((aPCM.Length() % aChannels) == 0);
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auto audioData = MakeUnique<AudioDataValue[]>(aPCM.Length());
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for (size_t i = 0; i < aPCM.Length(); ++i) {
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audioData[i] = AudioSampleToFloat(aPCM[i]);
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}
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if (mMustRecaptureAudioPosition) {
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mAudioFrameSum = 0;
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auto timestamp = UsecsToFrames(aTimeStamp, aRate);
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if (!timestamp.isValid()) {
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NS_WARNING("Invalid timestamp");
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mCallback->Error();
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return;
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}
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mAudioFrameOffset = timestamp.value();
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mMustRecaptureAudioPosition = false;
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}
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auto timestamp = FramesToUsecs(mAudioFrameOffset + mAudioFrameSum, aRate);
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if (!timestamp.isValid()) {
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NS_WARNING("Invalid timestamp on audio samples");
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mCallback->Error();
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return;
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}
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mAudioFrameSum += numFrames;
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auto duration = FramesToUsecs(numFrames, aRate);
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if (!duration.isValid()) {
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NS_WARNING("Invalid duration on audio samples");
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mCallback->Error();
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return;
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}
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RefPtr<AudioData> audio(new AudioData(mLastStreamOffset,
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timestamp.value(),
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duration.value(),
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numFrames,
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Move(audioData),
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aChannels,
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aRate));
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#ifdef LOG_SAMPLE_DECODE
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LOG("Decoded audio sample! timestamp=%lld duration=%lld currentLength=%u",
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timestamp, duration, currentLength);
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#endif
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mCallback->Output(audio);
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}
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void
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AudioCallbackAdapter::InputDataExhausted()
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{
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MOZ_ASSERT(IsOnGMPThread());
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mCallback->InputExhausted();
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}
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void
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AudioCallbackAdapter::DrainComplete()
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{
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MOZ_ASSERT(IsOnGMPThread());
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mCallback->DrainComplete();
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}
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void
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AudioCallbackAdapter::ResetComplete()
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{
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MOZ_ASSERT(IsOnGMPThread());
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mMustRecaptureAudioPosition = true;
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mCallback->FlushComplete();
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}
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void
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AudioCallbackAdapter::Error(GMPErr aErr)
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{
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MOZ_ASSERT(IsOnGMPThread());
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mCallback->Error();
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}
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void
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AudioCallbackAdapter::Terminated()
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{
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NS_WARNING("AAC GMP decoder terminated.");
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mCallback->Error();
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}
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void
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GMPAudioDecoder::InitTags(nsTArray<nsCString>& aTags)
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{
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aTags.AppendElement(NS_LITERAL_CSTRING("aac"));
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const Maybe<nsCString> gmp(
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GMPDecoderModule::PreferredGMP(NS_LITERAL_CSTRING("audio/mp4a-latm")));
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if (gmp.isSome()) {
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aTags.AppendElement(gmp.value());
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}
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}
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nsCString
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GMPAudioDecoder::GetNodeId()
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{
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return NS_LITERAL_CSTRING("");
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}
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void
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GMPAudioDecoder::GMPInitDone(GMPAudioDecoderProxy* aGMP)
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{
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MOZ_ASSERT(IsOnGMPThread());
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if (!aGMP) {
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mInitPromise.RejectIfExists(MediaDataDecoder::DecoderFailureReason::INIT_ERROR, __func__);
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return;
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}
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if (mInitPromise.IsEmpty()) {
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// GMP must have been shutdown while we were waiting for Init operation
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// to complete.
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aGMP->Close();
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return;
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}
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nsTArray<uint8_t> codecSpecific;
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codecSpecific.AppendElements(mConfig.mCodecSpecificConfig->Elements(),
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mConfig.mCodecSpecificConfig->Length());
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nsresult rv = aGMP->InitDecode(kGMPAudioCodecAAC,
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mConfig.mChannels,
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mConfig.mBitDepth,
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mConfig.mRate,
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codecSpecific,
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mAdapter);
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if (NS_FAILED(rv)) {
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aGMP->Close();
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mInitPromise.Reject(MediaDataDecoder::DecoderFailureReason::INIT_ERROR, __func__);
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return;
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}
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mGMP = aGMP;
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mInitPromise.Resolve(TrackInfo::kAudioTrack, __func__);
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}
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RefPtr<MediaDataDecoder::InitPromise>
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GMPAudioDecoder::Init()
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{
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MOZ_ASSERT(IsOnGMPThread());
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mMPS = do_GetService("@mozilla.org/gecko-media-plugin-service;1");
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MOZ_ASSERT(mMPS);
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RefPtr<InitPromise> promise(mInitPromise.Ensure(__func__));
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nsTArray<nsCString> tags;
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InitTags(tags);
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UniquePtr<GetGMPAudioDecoderCallback> callback(new GMPInitDoneCallback(this));
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if (NS_FAILED(mMPS->GetGMPAudioDecoder(&tags, GetNodeId(), Move(callback)))) {
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mInitPromise.Reject(MediaDataDecoder::DecoderFailureReason::INIT_ERROR, __func__);
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}
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return promise;
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}
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nsresult
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GMPAudioDecoder::Input(MediaRawData* aSample)
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{
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MOZ_ASSERT(IsOnGMPThread());
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RefPtr<MediaRawData> sample(aSample);
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if (!mGMP) {
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mCallback->Error();
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return NS_ERROR_FAILURE;
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}
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mAdapter->SetLastStreamOffset(sample->mOffset);
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gmp::GMPAudioSamplesImpl samples(sample, mConfig.mChannels, mConfig.mRate);
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nsresult rv = mGMP->Decode(samples);
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if (NS_FAILED(rv)) {
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mCallback->Error();
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return rv;
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}
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return NS_OK;
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}
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nsresult
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GMPAudioDecoder::Flush()
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{
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MOZ_ASSERT(IsOnGMPThread());
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if (!mGMP || NS_FAILED(mGMP->Reset())) {
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// Abort the flush.
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mCallback->FlushComplete();
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}
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return NS_OK;
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}
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nsresult
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GMPAudioDecoder::Drain()
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{
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MOZ_ASSERT(IsOnGMPThread());
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if (!mGMP || NS_FAILED(mGMP->Drain())) {
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mCallback->DrainComplete();
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}
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return NS_OK;
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}
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nsresult
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GMPAudioDecoder::Shutdown()
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{
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mInitPromise.RejectIfExists(MediaDataDecoder::DecoderFailureReason::CANCELED, __func__);
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if (!mGMP) {
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return NS_ERROR_FAILURE;
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}
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// Note this unblocks flush and drain operations waiting for callbacks.
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mGMP->Close();
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mGMP = nullptr;
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return NS_OK;
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}
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} // namespace mozilla
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