Passing Native Texture backed Video Frame from Renderer to GPU process

content/common/gpu/gpu_messages.h

 // Copyright (c) 2012 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.
 
 // Multiply-included message file, hence no include guard here, but see below
 // for a much smaller-than-usual include guard section.
 
 #include <string>
 #include <vector>
 
 #include "base/memory/shared_memory.h"
 #include "content/common/content_export.h"
 #include "content/common/content_param_traits.h"
 #include "content/common/gpu/gpu_memory_uma_stats.h"
 #include "content/common/gpu/gpu_process_launch_causes.h"
 #include "content/common/gpu/gpu_result_codes.h"
 #include "content/public/common/common_param_traits.h"
 #include "content/public/common/gpu_memory_stats.h"
 #include "gpu/command_buffer/common/capabilities.h"
 #include "gpu/command_buffer/common/command_buffer.h"
 #include "gpu/command_buffer/common/constants.h"
 #include "gpu/command_buffer/common/gpu_memory_allocation.h"
 #include "gpu/command_buffer/common/mailbox.h"
+#include "gpu/command_buffer/common/mailbox_holder.h"
 #include "gpu/command_buffer/common/value_state.h"
 #include "gpu/config/gpu_info.h"
 #include "gpu/ipc/gpu_command_buffer_traits.h"
 #include "ipc/ipc_channel_handle.h"
 #include "ipc/ipc_message_macros.h"
 #include "media/base/video_frame.h"
 #include "media/video/video_decode_accelerator.h"
 #include "media/video/video_encode_accelerator.h"
 #include "ui/events/latency_info.h"
 #include "ui/gfx/geometry/size.h"
@@ skipping 663 matching lines @@
 IPC_MESSAGE_ROUTED0(AcceleratedVideoDecoderHostMsg_ResetDone)
 
 // Video decoder has encountered an error.
 IPC_MESSAGE_ROUTED1(AcceleratedVideoDecoderHostMsg_ErrorNotification,
                     uint32) /* Error ID */
 
 //------------------------------------------------------------------------------
 // Accelerated Video Encoder Messages
 // These messages are sent from the Renderer process to GPU process.
 
 // Queue a input buffer to the encoder to encode. |frame_id| will be returned by

[mcasas, 2015/06/04 15:20:55]

s/Queue a input buffer/Queue a shared memory/?

[emircan, 2015/06/04 22:04:40]

Done.

 // AcceleratedVideoEncoderHostMsg_NotifyInputDone.
-IPC_MESSAGE_ROUTED5(AcceleratedVideoEncoderMsg_Encode,
+IPC_MESSAGE_ROUTED5(AcceleratedVideoEncoderMsg_EncodeSharedMemory,
                     int32 /* frame_id */,
                     base::SharedMemoryHandle /* buffer_handle */,
                     uint32 /* buffer_offset */,
                     uint32 /* buffer_size */,
                     bool /* force_keyframe */)
 
+// Queue a native texture to the encoder to encode. |frame_id| will be returned
+// by AcceleratedVideoEncoderHostMsg_NotifyInputDone.
+IPC_MESSAGE_ROUTED3(AcceleratedVideoEncoderMsg_EncodeNativeTexture,
+                    int32 /* frame_id */,
+                    gpu::MailboxHolder /* mailbox_holder */,
+                    bool /* force_keyframe */)
+
 // Queue a buffer to the encoder for use in returning output.  |buffer_id| will
 // be returned by AcceleratedVideoEncoderHostMsg_BitstreamBufferReady.
 IPC_MESSAGE_ROUTED3(AcceleratedVideoEncoderMsg_UseOutputBitstreamBuffer,
                     int32 /* buffer_id */,
                     base::SharedMemoryHandle /* buffer_handle */,
                     uint32 /* buffer_size */)
 
 // Request a runtime encoding parameter change.
 IPC_MESSAGE_ROUTED2(AcceleratedVideoEncoderMsg_RequestEncodingParametersChange,
                     uint32 /* bitrate */,
@@ skipping 21 matching lines @@
                     int32 /* bitstream_buffer_id */,
                     uint32 /* payload_size */,
                     bool /* key_frame */)
 
 // Report error condition.
 IPC_MESSAGE_ROUTED1(AcceleratedVideoEncoderHostMsg_NotifyError,
                     media::VideoEncodeAccelerator::Error /* error */)
 
 // Send destroy request to the encoder.
 IPC_MESSAGE_ROUTED0(AcceleratedVideoEncoderMsg_Destroy)