Add media::VideoEncodeAccelerator with WebRTC integration

content/common/gpu/client/gpu_video_encode_accelerator_host.cc

+// Copyright (c) 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "content/common/gpu/client/gpu_video_encode_accelerator_host.h"
+
+#include "base/logging.h"
+#include "content/common/gpu/client/gpu_channel_host.h"
+#include "content/common/gpu/gpu_messages.h"
+#include "content/common/gpu/media/gpu_video_encode_accelerator.h"

[Ami GONE FROM CHROMIUM, 2013/08/02 18:42:40]

I feel this is no more legit than simply hard-coding the set of profiles.
This is more future-proofing that isn't buying you anything.
Drop until it's done right?

On 2013/08/02 01:27:49, sheu wrote:

[sheu, 2013/08/03 01:31:03]

It's not any more legit, but I think it at least centralizes the non-legit-ness
in one place.  This is why I put GpuVEA::GetSupportedProfiles() and
GpuVEA::CreateEncoder() next to each other in gpu_video_encode_accelerator.cc
(and why I proxy over to that file in the first place): so when I add EVEA in
the next changelist, the "#if defined(OS_CHROMEOS) && defined(ARCH_ARM_EL)"
business stays in one place.

+
+namespace content {
+
+GpuVideoEncodeAcceleratorHost::GpuVideoEncodeAcceleratorHost(
+    media::VideoEncodeAccelerator::Client* client,
+    const scoped_refptr<GpuChannelHost>& gpu_channel_host,
+    int32 route_id)
+    : client_(client), channel_(gpu_channel_host), route_id_(route_id) {
+  channel_->AddRoute(route_id_, AsWeakPtr());
+}
+
+GpuVideoEncodeAcceleratorHost::~GpuVideoEncodeAcceleratorHost() {
+  if (channel_)
+    channel_->RemoveRoute(route_id_);
+}
+
+// static
+std::vector<media::VideoEncodeAccelerator::SupportedProfile>
+GpuVideoEncodeAcceleratorHost::GetSupportedProfiles() {
+  return GpuVideoEncodeAccelerator::GetSupportedProfiles();
+}
+
+bool GpuVideoEncodeAcceleratorHost::OnMessageReceived(
+    const IPC::Message& message) {
+  bool handled = true;
+  IPC_BEGIN_MESSAGE_MAP(GpuVideoEncodeAcceleratorHost, message)
+    IPC_MESSAGE_HANDLER(AcceleratedVideoEncoderHostMsg_NotifyInitializeDone,
+                        OnNotifyInitializeDone)
+    IPC_MESSAGE_HANDLER(AcceleratedVideoEncoderHostMsg_RequireBitstreamBuffers,
+                        OnRequireBitstreamBuffers)
+    IPC_MESSAGE_HANDLER(AcceleratedVideoEncoderHostMsg_NotifyInputDone,
+                        OnNotifyInputDone)
+    IPC_MESSAGE_HANDLER(AcceleratedVideoEncoderHostMsg_BitstreamBufferReady,
+                        OnBitstreamBufferReady)
+    IPC_MESSAGE_HANDLER(AcceleratedVideoEncoderHostMsg_NotifyError,
+                        OnNotifyError)
+    IPC_MESSAGE_UNHANDLED(handled = false)
+  IPC_END_MESSAGE_MAP()
+  DCHECK(handled);
+  return handled;
+}
+
+void GpuVideoEncodeAcceleratorHost::OnChannelError() {
+  DLOG(ERROR) << "GpuVideoEncodeAcceleratorHost::OnChannelError()";
+  OnNotifyError(kPlatformFailureError);
+  if (channel_) {
+    channel_->RemoveRoute(route_id_);
+    channel_ = NULL;
+  }
+}
+
+void GpuVideoEncodeAcceleratorHost::Initialize(
+    media::VideoFrame::Format input_format,
+    const gfx::Size& input_resolution,
+    media::VideoCodecProfile output_profile,
+    int32 initial_bitrate) {
+  if (!channel_)
+    return;
+  if (!Send(new AcceleratedVideoEncoderMsg_Initialize(route_id_,
+                                                      input_format,
+                                                      input_resolution,
+                                                      output_profile,
+                                                      initial_bitrate))) {
+    DLOG(ERROR) << "GpuVideoEncodeAcceleratorHost::Initialize(): Send() failed";
+  }
+}
+
+void GpuVideoEncodeAcceleratorHost::Encode(const media::BitstreamBuffer& buffer,
+                                           bool force_keyframe) {
+  if (!channel_)
+    return;
+  base::SharedMemoryHandle handle =
+      channel_->ShareToGpuProcess(buffer.handle());
+  if (!base::SharedMemory::IsHandleValid(handle)) {
+    DLOG(ERROR) << "GpuVideoEncodeAcceleratorHost::Encode(): failed to "
+                   "duplicate buffer handle for GPU process: buffer.id()="
+                << buffer.id();
+    OnNotifyError(kPlatformFailureError);
+    return;
+  }
+  if (!Send(new AcceleratedVideoEncoderMsg_Encode(
+          route_id_, buffer.id(), handle, buffer.size(), force_keyframe))) {
+    DLOG(ERROR) << "GpuVideoEncodeAcceleratorHost::Encode(): Send() failed: "
+                << "buffer.id()=" << buffer.id();
+  }
+}
+
+void GpuVideoEncodeAcceleratorHost::UseOutputBitstreamBuffer(
+    const media::BitstreamBuffer& buffer) {
+  if (!channel_)
+    return;
+  base::SharedMemoryHandle handle =
+      channel_->ShareToGpuProcess(buffer.handle());
+  if (!base::SharedMemory::IsHandleValid(handle)) {
+    DLOG(ERROR) << "GpuVideoEncodeAcceleratorHost::UseOutputBitstreamBuffer(): "
+                   "failed to duplicate buffer handle for GPU process: "
+                   "buffer.id()=" << buffer.id();
+    OnNotifyError(kPlatformFailureError);
+    return;
+  }
+  if (!Send(new AcceleratedVideoEncoderMsg_UseOutputBitstreamBuffer(
+          route_id_, buffer.id(), handle, buffer.size()))) {
+    DLOG(ERROR) << "GpuVideoEncodeAcceleratorHost::UseOutputBitstreamBuffer(): "
+                   "Send() failed: buffer.id()=" << buffer.id();
+  }
+}
+
+void GpuVideoEncodeAcceleratorHost::RequestEncodingParameterChange(
+    int32 bitrate) {
+  if (!channel_)
+    return;
+  if (!Send(new AcceleratedVideoEncoderMsg_RequestEncodingParameterChange(
+          route_id_, bitrate))) {
+    DLOG(ERROR)
+        << "GpuVideoEncodeAcceleratorHost::RequestEncodingParameterChange(): "
+           "Send() failed";
+  }
+}
+
+void GpuVideoEncodeAcceleratorHost::Destroy() {
+  if (channel_) {
+    if (!Send(new GpuChannelMsg_DestroyVideoEncoder(route_id_)))
+      DLOG(ERROR) << "GpuVideoEncodeAcceleratorHost::Destroy(): Send() failed";
+  }
+  delete this;
+}
+
+void GpuVideoEncodeAcceleratorHost::OnNotifyInitializeDone() {
+  DVLOG(2) << "GpuVideoEncodeAcceleratorHost::OnNotifyInitializeDone()";
+  if (client_)
+    client_->NotifyInitializeDone();
+}
+
+void GpuVideoEncodeAcceleratorHost::OnRequireBitstreamBuffers(
+    int input_count,
+    const gfx::Size& input_dimensions,
+    uint32 output_size) {
+  DVLOG(2) << "GpuVideoEncodeAcceleratorHost::OnRequireBitstreamBuffers(): "
+              "input_count=" << input_count
+           << ", input_dimensions=" << input_dimensions.ToString()
+           << ", output_size=" << output_size;
+  if (client_) {
+    client_->RequireBitstreamBuffers(
+        input_count, input_dimensions, output_size);
+  }
+}
+
+void GpuVideoEncodeAcceleratorHost::OnNotifyInputDone(
+    int32 bitstream_buffer_id) {
+  DVLOG(3) << "GpuVideoEncodeAcceleratorHost::OnNotifyInputDone(): "
+              "bitstream_buffer_id=" << bitstream_buffer_id;
+  if (client_)
+    client_->NotifyInputDone(bitstream_buffer_id);
+}
+
+void GpuVideoEncodeAcceleratorHost::OnBitstreamBufferReady(
+    int32 bitstream_buffer_id,
+    uint32 payload_size,
+    bool key_frame) {
+  DVLOG(3) << "GpuVideoEncodeAcceleratorHost::OnBitstreamBufferReady(): "
+              "bitstream_buffer_id=" << bitstream_buffer_id
+           << ", payload_size=" << payload_size
+           << ", key_frame=" << key_frame;
+  if (client_)
+    client_->BitstreamBufferReady(bitstream_buffer_id, payload_size, key_frame);
+}
+
+void GpuVideoEncodeAcceleratorHost::OnNotifyError(Error error) {
+  DVLOG(2) << "GpuVideoEncodeAcceleratorHost::OnNotifyError(): error=" << error;
+  if (client_) {
+    client_->NotifyError(error);
+    client_ = NULL;
+  }
+}
+
+bool GpuVideoEncodeAcceleratorHost::Send(IPC::Message* message) {
+  if (!channel_) {
+    DLOG(ERROR) << "GpuVideoEncodeAcceleratorHost::Send(): no channel";
+    delete message;
+    return false;
+    OnNotifyError(kPlatformFailureError);
+  } else if (!channel_->Send(message)) {
+    DLOG(ERROR) << "GpuVideoEncodeAcceleratorHost::Send(): sending failed";
+    OnNotifyError(kPlatformFailureError);
+    return false;
+  }
+  return true;
+}
+
+}  // namespace content