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// Copyright (c) 2011 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/gpu/gpu_video_decode_accelerator.h"
#include <vector>
#include "base/shared_memory.h"
#include "content/common/gpu/gpu_messages.h"
#include "ipc/ipc_message_macros.h"
#include "ipc/ipc_message_utils.h"
#include "media/video/picture.h"
#include "ui/gfx/size.h"
GpuVideoDecodeAccelerator::GpuVideoDecodeAccelerator(
IPC::Message::Sender* sender,
int32 host_route_id)
: sender_(sender),
route_id_(host_route_id),
cb_factory_(ALLOW_THIS_IN_INITIALIZER_LIST(this)) {
}
GpuVideoDecodeAccelerator::~GpuVideoDecodeAccelerator() {}
bool GpuVideoDecodeAccelerator::OnMessageReceived(const IPC::Message& msg) {
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(GpuVideoDecodeAccelerator, msg)
IPC_MESSAGE_HANDLER(AcceleratedVideoDecoderMsg_GetConfigs,
OnGetConfigs)
IPC_MESSAGE_HANDLER(AcceleratedVideoDecoderMsg_Decode,
OnDecode)
IPC_MESSAGE_HANDLER(AcceleratedVideoDecoderMsg_AssignPictureBuffer,
OnAssignPictureBuffer)
IPC_MESSAGE_HANDLER(AcceleratedVideoDecoderMsg_ReusePictureBuffer,
OnReusePictureBuffer)
IPC_MESSAGE_HANDLER(AcceleratedVideoDecoderMsg_Flush,
OnFlush)
IPC_MESSAGE_HANDLER(AcceleratedVideoDecoderMsg_Abort,
OnAbort)
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
void GpuVideoDecodeAccelerator::OnChannelConnected(int32 peer_pid) {
// TODO(vmr): Do we have to react on channel connections?
}
void GpuVideoDecodeAccelerator::OnChannelError() {
// TODO(vmr): Do we have to react on channel errors?
}
void GpuVideoDecodeAccelerator::ProvidePictureBuffers(
uint32 requested_num_of_buffers,
const std::vector<uint32>& buffer_properties) {
Send(new AcceleratedVideoDecoderHostMsg_ProvidePictureBuffers(
route_id_,
requested_num_of_buffers,
buffer_properties));
}
void GpuVideoDecodeAccelerator::DismissPictureBuffer(
media::VideoDecodeAccelerator::PictureBuffer* picture_buffer) {
DCHECK(picture_buffer);
// TODO(vmr): Unmap system memory here.
Send(new AcceleratedVideoDecoderHostMsg_DismissPictureBuffer(
route_id_,
picture_buffer->GetId()));
}
void GpuVideoDecodeAccelerator::PictureReady(
media::VideoDecodeAccelerator::Picture* picture) {
Send(new AcceleratedVideoDecoderHostMsg_PictureReady(
route_id_,
picture->picture_buffer()->GetId()));
}
void GpuVideoDecodeAccelerator::NotifyEndOfStream() {
Send(new AcceleratedVideoDecoderHostMsg_EndOfStream(route_id_));
}
void GpuVideoDecodeAccelerator::NotifyError(
media::VideoDecodeAccelerator::Error error) {
Send(new AcceleratedVideoDecoderHostMsg_ErrorNotification(route_id_,
error));
}
void GpuVideoDecodeAccelerator::OnGetConfigs(std::vector<uint32> config,
std::vector<uint32>* configs) {
DCHECK(configs);
*configs = video_decode_accelerator_->GetConfig(config);
}
void GpuVideoDecodeAccelerator::OnCreate(std::vector<uint32> config,
int32* decoder_id) {
}
void GpuVideoDecodeAccelerator::OnDecode(base::SharedMemoryHandle handle,
int32 offset,
int32 size) {
if (offset < 0 || size <= 0) {
NotifyError(media::VideoDecodeAccelerator::VIDEODECODERERROR_INVALIDINPUT);
return;
}
if (!base::SharedMemory::IsHandleValid(handle)) {
NotifyError(media::VideoDecodeAccelerator::VIDEODECODERERROR_MEMFAILURE);
return;
}
base::SharedMemory* shm = new base::SharedMemory(handle, true);
if (!shm || !shm->Map(offset + size)) {
NotifyError(media::VideoDecodeAccelerator::VIDEODECODERERROR_MEMFAILURE);
return;
}
// Set the freshly mapped memory address to the bitstream buffer.
uint8* mem_ptr = static_cast<uint8*>(shm->memory());
media::BitstreamBuffer bitstream(mem_ptr + offset, size, NULL);
// Store the SHM in our FIFO queue. We need to do this before Decode because
// it is legal to call BitstreamBufferProcessed callback from the Decode
// context.
shm_in_.push_back(shm);
video_decode_accelerator_->Decode(
&bitstream,
cb_factory_.NewCallback(
&GpuVideoDecodeAccelerator::OnBitstreamBufferProcessed));
}
void GpuVideoDecodeAccelerator::OnAssignPictureBuffer(
int32 picture_buffer_id,
base::SharedMemoryHandle handle,
std::vector<uint32> textures) {
// TODO(vmr): Get the right size for picture buffers from config.
gfx::Size size(320, 240);
uint32 bits_per_pixel = 32;
media::VideoDecodeAccelerator::PictureBuffer::MemoryType memory_type;
std::vector<media::VideoDecodeAccelerator::PictureBuffer::DataPlaneHandle>
planes;
if (handle == base::SharedMemory::NULLHandle()) {
// TODO(vmr): Handle GLES textures here.
memory_type = media::VideoDecodeAccelerator::PictureBuffer::
PICTUREBUFFER_MEMORYTYPE_GL_TEXTURE;
} else {
// Input buffer provided is in system memory in one plane.
memory_type = media::VideoDecodeAccelerator::PictureBuffer::
PICTUREBUFFER_MEMORYTYPE_SYSTEM;
if (!base::SharedMemory::IsHandleValid(handle)) {
NotifyError(media::VideoDecodeAccelerator::VIDEODECODERERROR_MEMFAILURE);
return;
}
base::SharedMemory* shm = new base::SharedMemory(handle, true);
if (!shm || !shm->Map(size.width() * size.height() * bits_per_pixel)) {
NotifyError(media::VideoDecodeAccelerator::VIDEODECODERERROR_MEMFAILURE);
return;
}
media::VideoDecodeAccelerator::PictureBuffer::DataPlaneHandle sysmem_plane;
sysmem_plane.sysmem = shm;
planes.push_back(sysmem_plane);
}
std::vector<media::VideoDecodeAccelerator::PictureBuffer*> bufs;
std::vector<uint32> color_format;
media::VideoDecodeAccelerator::PictureBuffer* picture_buffer =
new media::PictureBuffer(picture_buffer_id,
size,
color_format,
memory_type,
planes);
bufs.push_back(picture_buffer);
video_decode_accelerator_->AssignPictureBuffer(bufs);
}
void GpuVideoDecodeAccelerator::OnReusePictureBuffer(
int32 picture_buffer_id) {
// TODO(vmr): Get the picture buffer with the id.
media::VideoDecodeAccelerator::PictureBuffer* picture_buffer = NULL;
video_decode_accelerator_->ReusePictureBuffer(picture_buffer);
}
void GpuVideoDecodeAccelerator::OnFlush() {
if (!video_decode_accelerator_->Flush(cb_factory_.NewCallback(
&GpuVideoDecodeAccelerator::OnFlushDone))) {
NotifyError(
media::VideoDecodeAccelerator::VIDEODECODERERROR_UNEXPECTED_FLUSH);
}
}
void GpuVideoDecodeAccelerator::OnAbort() {
video_decode_accelerator_->Abort(cb_factory_.NewCallback(
&GpuVideoDecodeAccelerator::OnAbortDone));
}
void GpuVideoDecodeAccelerator::OnBitstreamBufferProcessed() {
base::SharedMemory* shm = shm_in_.front();
DCHECK(shm); // Shared memory should always be non-NULL.
Send(new AcceleratedVideoDecoderHostMsg_BitstreamBufferProcessed(
0, shm->handle()));
shm_in_.pop_front();
}
void GpuVideoDecodeAccelerator::OnFlushDone() {
Send(new AcceleratedVideoDecoderHostMsg_FlushDone(0));
}
void GpuVideoDecodeAccelerator::OnAbortDone() {
Send(new AcceleratedVideoDecoderHostMsg_AbortDone(0));
}
bool GpuVideoDecodeAccelerator::Send(IPC::Message* message) {
DCHECK(sender_);
return sender_->Send(message);
}
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