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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 "GMPVideoEncoderParent.h"
#include "GMPContentParent.h"
#include "GMPCrashHelper.h"
#include "GMPLog.h"
#include "GMPMessageUtils.h"
#include "GMPVideoEncodedFrameImpl.h"
#include "GMPVideoi420FrameImpl.h"
#include "mozilla/gmp/GMPTypes.h"
#include "mozilla/Unused.h"
#include "nsAutoRef.h"
#include "nsThread.h"
#include "nsThreadUtils.h"
#include "runnable_utils.h"
#include "GMPLog.h"
namespace mozilla::gmp {
#ifdef __CLASS__
# undef __CLASS__
#endif
#define __CLASS__ "GMPVideoEncoderParent"
// States:
// Initial: mIsOpen == false
// on InitDecode success -> Open
// on Shutdown -> Dead
// Open: mIsOpen == true
// on Close -> Dead
// on ActorDestroy -> Dead
// on Shutdown -> Dead
// Dead: mIsOpen == false
GMPVideoEncoderParent::GMPVideoEncoderParent(GMPContentParent* aPlugin)
: GMPSharedMemManager(aPlugin),
mIsOpen(false),
mShuttingDown(false),
mActorDestroyed(false),
mPlugin(aPlugin),
mCallback(nullptr),
mVideoHost(this),
mPluginId(aPlugin->GetPluginId()) {
MOZ_ASSERT(mPlugin);
}
GMPVideoHostImpl& GMPVideoEncoderParent::Host() { return mVideoHost; }
// Note: may be called via Terminated()
void GMPVideoEncoderParent::Close() {
GMP_LOG_DEBUG("%s::%s: %p", __CLASS__, __FUNCTION__, this);
MOZ_ASSERT(mPlugin->GMPEventTarget()->IsOnCurrentThread());
// Consumer is done with us; we can shut down. No more callbacks should
// be made to mCallback. Note: do this before Shutdown()!
mCallback = nullptr;
// Let Shutdown mark us as dead so it knows if we had been alive
// In case this is the last reference
RefPtr<GMPVideoEncoderParent> kungfudeathgrip(this);
Release();
Shutdown();
}
GMPErr GMPVideoEncoderParent::InitEncode(
const GMPVideoCodec& aCodecSettings,
const nsTArray<uint8_t>& aCodecSpecific,
GMPVideoEncoderCallbackProxy* aCallback, int32_t aNumberOfCores,
uint32_t aMaxPayloadSize) {
GMP_LOG_DEBUG("%s::%s: %p", __CLASS__, __FUNCTION__, this);
if (mIsOpen) {
NS_WARNING("Trying to re-init an in-use GMP video encoder!");
return GMPGenericErr;
;
}
MOZ_ASSERT(mPlugin->GMPEventTarget()->IsOnCurrentThread());
MOZ_ASSERT(!mCallback);
if (!aCallback) {
return GMPGenericErr;
}
mCallback = aCallback;
if (!SendInitEncode(aCodecSettings, aCodecSpecific, aNumberOfCores,
aMaxPayloadSize)) {
return GMPGenericErr;
}
mIsOpen = true;
// Async IPC, we don't have access to a return value.
return GMPNoErr;
}
GMPErr GMPVideoEncoderParent::Encode(
GMPUniquePtr<GMPVideoi420Frame> aInputFrame,
const nsTArray<uint8_t>& aCodecSpecificInfo,
const nsTArray<GMPVideoFrameType>& aFrameTypes) {
if (!mIsOpen) {
NS_WARNING("Trying to use an dead GMP video encoder");
return GMPGenericErr;
}
MOZ_ASSERT(mPlugin->GMPEventTarget()->IsOnCurrentThread());
GMPUniquePtr<GMPVideoi420FrameImpl> inputFrameImpl(
static_cast<GMPVideoi420FrameImpl*>(aInputFrame.release()));
// Very rough kill-switch if the plugin stops processing. If it's merely
// hung and continues, we'll come back to life eventually.
// 3* is because we're using 3 buffers per frame for i420 data for now.
if ((NumInUse(GMPSharedMem::kGMPFrameData) >
3 * GMPSharedMem::kGMPBufLimit) ||
(NumInUse(GMPSharedMem::kGMPEncodedData) > GMPSharedMem::kGMPBufLimit)) {
GMP_LOG_ERROR(
"%s::%s: Out of mem buffers. Frame Buffers:%lu Max:%lu, Encoded "
"Buffers: %lu Max: %lu",
__CLASS__, __FUNCTION__,
static_cast<unsigned long>(NumInUse(GMPSharedMem::kGMPFrameData)),
static_cast<unsigned long>(3 * GMPSharedMem::kGMPBufLimit),
static_cast<unsigned long>(NumInUse(GMPSharedMem::kGMPEncodedData)),
static_cast<unsigned long>(GMPSharedMem::kGMPBufLimit));
return GMPGenericErr;
}
GMPVideoi420FrameData frameData;
inputFrameImpl->InitFrameData(frameData);
if (!SendEncode(frameData, aCodecSpecificInfo, aFrameTypes)) {
GMP_LOG_ERROR("%s::%s: failed to send encode", __CLASS__, __FUNCTION__);
return GMPGenericErr;
}
// Async IPC, we don't have access to a return value.
return GMPNoErr;
}
GMPErr GMPVideoEncoderParent::SetChannelParameters(uint32_t aPacketLoss,
uint32_t aRTT) {
if (!mIsOpen) {
NS_WARNING("Trying to use an invalid GMP video encoder!");
return GMPGenericErr;
}
MOZ_ASSERT(mPlugin->GMPEventTarget()->IsOnCurrentThread());
if (!SendSetChannelParameters(aPacketLoss, aRTT)) {
return GMPGenericErr;
}
// Async IPC, we don't have access to a return value.
return GMPNoErr;
}
GMPErr GMPVideoEncoderParent::SetRates(uint32_t aNewBitRate,
uint32_t aFrameRate) {
if (!mIsOpen) {
NS_WARNING("Trying to use an dead GMP video decoder");
return GMPGenericErr;
}
MOZ_ASSERT(mPlugin->GMPEventTarget()->IsOnCurrentThread());
if (!SendSetRates(aNewBitRate, aFrameRate)) {
return GMPGenericErr;
}
// Async IPC, we don't have access to a return value.
return GMPNoErr;
}
GMPErr GMPVideoEncoderParent::SetPeriodicKeyFrames(bool aEnable) {
if (!mIsOpen) {
NS_WARNING("Trying to use an invalid GMP video encoder!");
return GMPGenericErr;
}
MOZ_ASSERT(mPlugin->GMPEventTarget()->IsOnCurrentThread());
if (!SendSetPeriodicKeyFrames(aEnable)) {
return GMPGenericErr;
}
// Async IPC, we don't have access to a return value.
return GMPNoErr;
}
// Note: Consider keeping ActorDestroy sync'd up when making changes here.
void GMPVideoEncoderParent::Shutdown() {
GMP_LOG_DEBUG("%s::%s: %p", __CLASS__, __FUNCTION__, this);
MOZ_ASSERT(mPlugin->GMPEventTarget()->IsOnCurrentThread());
if (mShuttingDown) {
return;
}
mShuttingDown = true;
// Notify client we're gone! Won't occur after Close()
if (mCallback) {
mCallback->Terminated();
mCallback = nullptr;
}
mIsOpen = false;
if (!mActorDestroyed) {
Unused << SendEncodingComplete();
}
}
// Note: Keep this sync'd up with Shutdown
void GMPVideoEncoderParent::ActorDestroy(ActorDestroyReason aWhy) {
GMP_LOG_DEBUG("%s::%s: %p (%d)", __CLASS__, __FUNCTION__, this, (int)aWhy);
mIsOpen = false;
mActorDestroyed = true;
if (mCallback) {
// May call Close() (and Shutdown()) immediately or with a delay
mCallback->Terminated();
mCallback = nullptr;
}
if (mPlugin) {
// Ignore any return code. It is OK for this to fail without killing the
// process.
mPlugin->VideoEncoderDestroyed(this);
mPlugin = nullptr;
}
mVideoHost.ActorDestroyed(); // same as DoneWithAPI
MaybeDisconnect(aWhy == AbnormalShutdown);
}
mozilla::ipc::IPCResult GMPVideoEncoderParent::RecvEncoded(
const GMPVideoEncodedFrameData& aEncodedFrame,
nsTArray<uint8_t>&& aCodecSpecificInfo) {
if (!mCallback) {
return IPC_FAIL_NO_REASON(this);
}
auto f = new GMPVideoEncodedFrameImpl(aEncodedFrame, &mVideoHost);
// Ignore any return code. It is OK for this to fail without killing the
// process. This can be called on any thread (or more than one)
mCallback->Encoded(f, aCodecSpecificInfo);
f->Destroy();
return IPC_OK();
}
mozilla::ipc::IPCResult GMPVideoEncoderParent::RecvError(const GMPErr& aError) {
if (!mCallback) {
return IPC_FAIL_NO_REASON(this);
}
// Ignore any return code. It is OK for this to fail without killing the
// process.
mCallback->Error(aError);
return IPC_OK();
}
mozilla::ipc::IPCResult GMPVideoEncoderParent::RecvShutdown() {
Shutdown();
return IPC_OK();
}
mozilla::ipc::IPCResult GMPVideoEncoderParent::RecvParentShmemForPool(
Shmem&& aFrameBuffer) {
if (aFrameBuffer.IsWritable()) {
// This test may be paranoia now that we don't shut down the VideoHost
// in ::Shutdown, but doesn't hurt
if (mVideoHost.SharedMemMgr()) {
mVideoHost.SharedMemMgr()->MgrDeallocShmem(GMPSharedMem::kGMPFrameData,
aFrameBuffer);
} else {
GMP_LOG_DEBUG(
"%s::%s: %p Called in shutdown, ignoring and freeing directly",
__CLASS__, __FUNCTION__, this);
DeallocShmem(aFrameBuffer);
}
}
return IPC_OK();
}
mozilla::ipc::IPCResult GMPVideoEncoderParent::AnswerNeedShmem(
const uint32_t& aEncodedBufferSize, Shmem* aMem) {
ipc::Shmem mem;
// This test may be paranoia now that we don't shut down the VideoHost
// in ::Shutdown, but doesn't hurt
if (!mVideoHost.SharedMemMgr() ||
!mVideoHost.SharedMemMgr()->MgrAllocShmem(
GMPSharedMem::kGMPEncodedData, aEncodedBufferSize,
ipc::SharedMemory::TYPE_BASIC, &mem)) {
GMP_LOG_ERROR(
"%s::%s: Failed to get a shared mem buffer for Child! size %u",
__CLASS__, __FUNCTION__, aEncodedBufferSize);
return IPC_FAIL_NO_REASON(this);
}
*aMem = mem;
mem = ipc::Shmem();
return IPC_OK();
}
mozilla::ipc::IPCResult GMPVideoEncoderParent::Recv__delete__() {
if (mPlugin) {
// Ignore any return code. It is OK for this to fail without killing the
// process.
mPlugin->VideoEncoderDestroyed(this);
mPlugin = nullptr;
}
return IPC_OK();
}
} // namespace mozilla::gmp
#undef __CLASS__