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-rw-r--r--dom/media/gmp/GMPVideoEncodedFrameImpl.cpp226
1 files changed, 226 insertions, 0 deletions
diff --git a/dom/media/gmp/GMPVideoEncodedFrameImpl.cpp b/dom/media/gmp/GMPVideoEncodedFrameImpl.cpp
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--- /dev/null
+++ b/dom/media/gmp/GMPVideoEncodedFrameImpl.cpp
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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 "GMPVideoEncodedFrameImpl.h"
+#include "GMPVideoHost.h"
+#include "mozilla/gmp/GMPTypes.h"
+#include "GMPSharedMemManager.h"
+
+namespace mozilla::gmp {
+
+GMPVideoEncodedFrameImpl::GMPVideoEncodedFrameImpl(GMPVideoHostImpl* aHost)
+ : mEncodedWidth(0),
+ mEncodedHeight(0),
+ mTimeStamp(0ll),
+ mDuration(0ll),
+ mFrameType(kGMPDeltaFrame),
+ mSize(0),
+ mCompleteFrame(false),
+ mHost(aHost),
+ mBufferType(GMP_BufferSingle) {
+ MOZ_ASSERT(aHost);
+ aHost->EncodedFrameCreated(this);
+}
+
+GMPVideoEncodedFrameImpl::GMPVideoEncodedFrameImpl(
+ const GMPVideoEncodedFrameData& aFrameData, GMPVideoHostImpl* aHost)
+ : mEncodedWidth(aFrameData.mEncodedWidth()),
+ mEncodedHeight(aFrameData.mEncodedHeight()),
+ mTimeStamp(aFrameData.mTimestamp()),
+ mDuration(aFrameData.mDuration()),
+ mFrameType(static_cast<GMPVideoFrameType>(aFrameData.mFrameType())),
+ mSize(aFrameData.mSize()),
+ mCompleteFrame(aFrameData.mCompleteFrame()),
+ mHost(aHost),
+ mBuffer(aFrameData.mBuffer()),
+ mBufferType(aFrameData.mBufferType()) {
+ MOZ_ASSERT(aHost);
+ aHost->EncodedFrameCreated(this);
+}
+
+GMPVideoEncodedFrameImpl::~GMPVideoEncodedFrameImpl() {
+ DestroyBuffer();
+ if (mHost) {
+ mHost->EncodedFrameDestroyed(this);
+ }
+}
+
+GMPVideoFrameFormat GMPVideoEncodedFrameImpl::GetFrameFormat() {
+ return kGMPEncodedVideoFrame;
+}
+
+void GMPVideoEncodedFrameImpl::DoneWithAPI() {
+ DestroyBuffer();
+
+ // Do this after destroying the buffer because destruction
+ // involves deallocation, which requires a host.
+ mHost = nullptr;
+}
+
+void GMPVideoEncodedFrameImpl::ActorDestroyed() {
+ // Simply clear out Shmem reference, do not attempt to
+ // properly free it. It has already been freed.
+ mBuffer = ipc::Shmem();
+ // No more host.
+ mHost = nullptr;
+}
+
+bool GMPVideoEncodedFrameImpl::RelinquishFrameData(
+ GMPVideoEncodedFrameData& aFrameData) {
+ aFrameData.mEncodedWidth() = mEncodedWidth;
+ aFrameData.mEncodedHeight() = mEncodedHeight;
+ aFrameData.mTimestamp() = mTimeStamp;
+ aFrameData.mDuration() = mDuration;
+ aFrameData.mFrameType() = mFrameType;
+ aFrameData.mSize() = mSize;
+ aFrameData.mCompleteFrame() = mCompleteFrame;
+ aFrameData.mBuffer() = mBuffer;
+ aFrameData.mBufferType() = mBufferType;
+
+ // This method is called right before Shmem is sent to another process.
+ // We need to effectively zero out our member copy so that we don't
+ // try to delete Shmem we don't own later.
+ mBuffer = ipc::Shmem();
+
+ return true;
+}
+
+void GMPVideoEncodedFrameImpl::DestroyBuffer() {
+ if (mHost && mBuffer.IsWritable()) {
+ mHost->SharedMemMgr()->MgrDeallocShmem(GMPSharedMem::kGMPEncodedData,
+ mBuffer);
+ }
+ mBuffer = ipc::Shmem();
+}
+
+GMPErr GMPVideoEncodedFrameImpl::CreateEmptyFrame(uint32_t aSize) {
+ if (aSize == 0) {
+ DestroyBuffer();
+ } else if (aSize > AllocatedSize()) {
+ DestroyBuffer();
+ if (!mHost->SharedMemMgr()->MgrAllocShmem(GMPSharedMem::kGMPEncodedData,
+ aSize, &mBuffer) ||
+ !Buffer()) {
+ return GMPAllocErr;
+ }
+ }
+ mSize = aSize;
+
+ return GMPNoErr;
+}
+
+GMPErr GMPVideoEncodedFrameImpl::CopyFrame(const GMPVideoEncodedFrame& aFrame) {
+ auto& f = static_cast<const GMPVideoEncodedFrameImpl&>(aFrame);
+
+ if (f.mSize != 0) {
+ GMPErr err = CreateEmptyFrame(f.mSize);
+ if (err != GMPNoErr) {
+ return err;
+ }
+ memcpy(Buffer(), f.Buffer(), f.mSize);
+ }
+ mEncodedWidth = f.mEncodedWidth;
+ mEncodedHeight = f.mEncodedHeight;
+ mTimeStamp = f.mTimeStamp;
+ mDuration = f.mDuration;
+ mFrameType = f.mFrameType;
+ mSize = f.mSize; // already set...
+ mCompleteFrame = f.mCompleteFrame;
+ mBufferType = f.mBufferType;
+ // Don't copy host, that should have been set properly on object creation via
+ // host.
+
+ return GMPNoErr;
+}
+
+void GMPVideoEncodedFrameImpl::SetEncodedWidth(uint32_t aEncodedWidth) {
+ mEncodedWidth = aEncodedWidth;
+}
+
+uint32_t GMPVideoEncodedFrameImpl::EncodedWidth() { return mEncodedWidth; }
+
+void GMPVideoEncodedFrameImpl::SetEncodedHeight(uint32_t aEncodedHeight) {
+ mEncodedHeight = aEncodedHeight;
+}
+
+uint32_t GMPVideoEncodedFrameImpl::EncodedHeight() { return mEncodedHeight; }
+
+void GMPVideoEncodedFrameImpl::SetTimeStamp(uint64_t aTimeStamp) {
+ mTimeStamp = aTimeStamp;
+}
+
+uint64_t GMPVideoEncodedFrameImpl::TimeStamp() { return mTimeStamp; }
+
+void GMPVideoEncodedFrameImpl::SetDuration(uint64_t aDuration) {
+ mDuration = aDuration;
+}
+
+uint64_t GMPVideoEncodedFrameImpl::Duration() const { return mDuration; }
+
+void GMPVideoEncodedFrameImpl::SetFrameType(GMPVideoFrameType aFrameType) {
+ mFrameType = aFrameType;
+}
+
+GMPVideoFrameType GMPVideoEncodedFrameImpl::FrameType() { return mFrameType; }
+
+void GMPVideoEncodedFrameImpl::SetAllocatedSize(uint32_t aNewSize) {
+ if (aNewSize <= AllocatedSize()) {
+ return;
+ }
+
+ if (!mHost) {
+ return;
+ }
+
+ ipc::Shmem new_mem;
+ if (!mHost->SharedMemMgr()->MgrAllocShmem(GMPSharedMem::kGMPEncodedData,
+ aNewSize, &new_mem) ||
+ !new_mem.get<uint8_t>()) {
+ return;
+ }
+
+ if (mBuffer.IsReadable()) {
+ memcpy(new_mem.get<uint8_t>(), Buffer(), mSize);
+ }
+
+ DestroyBuffer();
+
+ mBuffer = new_mem;
+}
+
+uint32_t GMPVideoEncodedFrameImpl::AllocatedSize() {
+ if (mBuffer.IsWritable()) {
+ return mBuffer.Size<uint8_t>();
+ }
+ return 0;
+}
+
+void GMPVideoEncodedFrameImpl::SetSize(uint32_t aSize) { mSize = aSize; }
+
+uint32_t GMPVideoEncodedFrameImpl::Size() { return mSize; }
+
+void GMPVideoEncodedFrameImpl::SetCompleteFrame(bool aCompleteFrame) {
+ mCompleteFrame = aCompleteFrame;
+}
+
+bool GMPVideoEncodedFrameImpl::CompleteFrame() { return mCompleteFrame; }
+
+const uint8_t* GMPVideoEncodedFrameImpl::Buffer() const {
+ return mBuffer.get<uint8_t>();
+}
+
+uint8_t* GMPVideoEncodedFrameImpl::Buffer() { return mBuffer.get<uint8_t>(); }
+
+void GMPVideoEncodedFrameImpl::Destroy() { delete this; }
+
+GMPBufferType GMPVideoEncodedFrameImpl::BufferType() const {
+ return mBufferType;
+}
+
+void GMPVideoEncodedFrameImpl::SetBufferType(GMPBufferType aBufferType) {
+ mBufferType = aBufferType;
+}
+
+} // namespace mozilla::gmp