src/content/common/gpu/media/gpu_video_decode_accelerator.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "content/common/gpu/media/gpu_video_decode_accelerator.h"
   6
   7 #include <vector>
   8
   9 #include "base/bind.h"
  10 #include "base/command_line.h"
  11 #include "base/logging.h"
  12 #include "base/message_loop/message_loop_proxy.h"
  13 #include "base/stl_util.h"
  14
  15 #include "content/common/gpu/gpu_channel.h"
  16 #include "content/common/gpu/gpu_messages.h"
  17 #include "content/public/common/content_switches.h"
  18 #include "gpu/command_buffer/common/command_buffer.h"
  19 #include "ipc/ipc_message_macros.h"
  20 #include "ipc/ipc_message_utils.h"
  21 #include "ipc/message_filter.h"
  22 #include "media/base/limits.h"
  23 #include "ui/gl/gl_context.h"
  24 #include "ui/gl/gl_surface_egl.h"
  25
  26 #if defined(OS_WIN)
  27 #include "base/win/windows_version.h"
  28 #include "content/common/gpu/media/dxva_video_decode_accelerator.h"
  29 #elif defined(OS_CHROMEOS) && defined(ARCH_CPU_ARMEL) && defined(USE_X11)
  30 #include "content/common/gpu/media/v4l2_video_decode_accelerator.h"
  31 #include "content/common/gpu/media/v4l2_video_device.h"
  32 #elif defined(ARCH_CPU_X86_FAMILY) && (defined(USE_X11) || defined(USE_OZONE))
  33 #include "content/common/gpu/media/vaapi_video_decode_accelerator.h"
  34 #if defined(USE_X11)
  35 #include "ui/gl/gl_context_glx.h"
  36 #include "ui/gl/gl_implementation.h"
  37 #endif
  38 #elif defined(OS_ANDROID)
  39 #include "content/common/gpu/media/android_video_decode_accelerator.h"
  40 #endif
  41
  42 #include "ui/gfx/size.h"
  43
  44 namespace content {
  45
  46 static bool MakeDecoderContextCurrent(
  47     const base::WeakPtr<GpuCommandBufferStub> stub) {
  48   if (!stub) {
  49     DLOG(ERROR) << "Stub is gone; won't MakeCurrent().";
  50     return false;
  51   }
  52
  53   if (!stub->decoder()->MakeCurrent()) {
  54     DLOG(ERROR) << "Failed to MakeCurrent()";
  55     return false;
  56   }
  57
  58   return true;
  59 }
  60
  61 // DebugAutoLock works like AutoLock but only acquires the lock when
  62 // DCHECK is on.
  63 #if DCHECK_IS_ON
  64 typedef base::AutoLock DebugAutoLock;
  65 #else
  66 class DebugAutoLock {
  67  public:
  68   explicit DebugAutoLock(base::Lock&) {}
  69 };
  70 #endif
  71
  72 class GpuVideoDecodeAccelerator::MessageFilter : public IPC::MessageFilter {
  73  public:
  74   MessageFilter(GpuVideoDecodeAccelerator* owner, int32 host_route_id)
  75       : owner_(owner), host_route_id_(host_route_id) {}
  76
  77   virtual void OnChannelError() OVERRIDE { channel_ = NULL; }
  78
  79   virtual void OnChannelClosing() OVERRIDE { channel_ = NULL; }
  80
  81   virtual void OnFilterAdded(IPC::Channel* channel) OVERRIDE {
  82     channel_ = channel;
  83   }
  84
  85   virtual void OnFilterRemoved() OVERRIDE {
  86     // This will delete |owner_| and |this|.
  87     owner_->OnFilterRemoved();
  88   }
  89
  90   virtual bool OnMessageReceived(const IPC::Message& msg) OVERRIDE {
  91     if (msg.routing_id() != host_route_id_)
  92       return false;
  93
  94     IPC_BEGIN_MESSAGE_MAP(MessageFilter, msg)
  95       IPC_MESSAGE_FORWARD(AcceleratedVideoDecoderMsg_Decode, owner_,
  96                           GpuVideoDecodeAccelerator::OnDecode)
  97       IPC_MESSAGE_UNHANDLED(return false;)
  98     IPC_END_MESSAGE_MAP()
  99     return true;
 100   }
 101
 102   bool SendOnIOThread(IPC::Message* message) {
 103     DCHECK(!message->is_sync());
 104     if (!channel_) {
 105       delete message;
 106       return false;
 107     }
 108     return channel_->Send(message);
 109   }
 110
 111  protected:
 112   virtual ~MessageFilter() {}
 113
 114  private:
 115   GpuVideoDecodeAccelerator* owner_;
 116   int32 host_route_id_;
 117   // The channel to which this filter was added.
 118   IPC::Channel* channel_;
 119 };
 120
 121 GpuVideoDecodeAccelerator::GpuVideoDecodeAccelerator(
 122     int32 host_route_id,
 123     GpuCommandBufferStub* stub,
 124     const scoped_refptr<base::MessageLoopProxy>& io_message_loop)
 125     : host_route_id_(host_route_id),
 126       stub_(stub),
 127       texture_target_(0),
 128       filter_removed_(true, false),
 129       io_message_loop_(io_message_loop),
 130       weak_factory_for_io_(this) {
 131   DCHECK(stub_);
 132   stub_->AddDestructionObserver(this);
 133   child_message_loop_ = base::MessageLoopProxy::current();
 134   make_context_current_ =
 135       base::Bind(&MakeDecoderContextCurrent, stub_->AsWeakPtr());
 136 }
 137
 138 GpuVideoDecodeAccelerator::~GpuVideoDecodeAccelerator() {
 139   // This class can only be self-deleted from OnWillDestroyStub(), which means
 140   // the VDA has already been destroyed in there.
 141   DCHECK(!video_decode_accelerator_);
 142 }
 143
 144 bool GpuVideoDecodeAccelerator::OnMessageReceived(const IPC::Message& msg) {
 145   if (!video_decode_accelerator_)
 146     return false;
 147
 148   bool handled = true;
 149   IPC_BEGIN_MESSAGE_MAP(GpuVideoDecodeAccelerator, msg)
 150     IPC_MESSAGE_HANDLER(AcceleratedVideoDecoderMsg_Decode, OnDecode)
 151     IPC_MESSAGE_HANDLER(AcceleratedVideoDecoderMsg_AssignPictureBuffers,
 152                         OnAssignPictureBuffers)
 153     IPC_MESSAGE_HANDLER(AcceleratedVideoDecoderMsg_ReusePictureBuffer,
 154                         OnReusePictureBuffer)
 155     IPC_MESSAGE_HANDLER(AcceleratedVideoDecoderMsg_Flush, OnFlush)
 156     IPC_MESSAGE_HANDLER(AcceleratedVideoDecoderMsg_Reset, OnReset)
 157     IPC_MESSAGE_HANDLER(AcceleratedVideoDecoderMsg_Destroy, OnDestroy)
 158     IPC_MESSAGE_UNHANDLED(handled = false)
 159   IPC_END_MESSAGE_MAP()
 160   return handled;
 161 }
 162
 163 void GpuVideoDecodeAccelerator::ProvidePictureBuffers(
 164     uint32 requested_num_of_buffers,
 165     const gfx::Size& dimensions,
 166     uint32 texture_target) {
 167   if (dimensions.width() > media::limits::kMaxDimension ||
 168       dimensions.height() > media::limits::kMaxDimension ||
 169       dimensions.GetArea() > media::limits::kMaxCanvas) {
 170     NotifyError(media::VideoDecodeAccelerator::PLATFORM_FAILURE);
 171     return;
 172   }
 173   if (!Send(new AcceleratedVideoDecoderHostMsg_ProvidePictureBuffers(
 174            host_route_id_,
 175            requested_num_of_buffers,
 176            dimensions,
 177            texture_target))) {
 178     DLOG(ERROR) << "Send(AcceleratedVideoDecoderHostMsg_ProvidePictureBuffers) "
 179                 << "failed";
 180   }
 181   texture_dimensions_ = dimensions;
 182   texture_target_ = texture_target;
 183 }
 184
 185 void GpuVideoDecodeAccelerator::DismissPictureBuffer(
 186     int32 picture_buffer_id) {
 187   // Notify client that picture buffer is now unused.
 188   if (!Send(new AcceleratedVideoDecoderHostMsg_DismissPictureBuffer(
 189           host_route_id_, picture_buffer_id))) {
 190     DLOG(ERROR) << "Send(AcceleratedVideoDecoderHostMsg_DismissPictureBuffer) "
 191                 << "failed";
 192   }
 193   DebugAutoLock auto_lock(debug_uncleared_textures_lock_);
 194   uncleared_textures_.erase(picture_buffer_id);
 195 }
 196
 197 void GpuVideoDecodeAccelerator::PictureReady(
 198     const media::Picture& picture) {
 199   // VDA may call PictureReady on IO thread. SetTextureCleared should run on
 200   // the child thread. VDA is responsible to call PictureReady on the child
 201   // thread when a picture buffer is delivered the first time.
 202   if (child_message_loop_->BelongsToCurrentThread()) {
 203     SetTextureCleared(picture);
 204   } else {
 205     DCHECK(io_message_loop_->BelongsToCurrentThread());
 206     DebugAutoLock auto_lock(debug_uncleared_textures_lock_);
 207     DCHECK_EQ(0u, uncleared_textures_.count(picture.picture_buffer_id()));
 208   }
 209
 210   if (!Send(new AcceleratedVideoDecoderHostMsg_PictureReady(
 211           host_route_id_,
 212           picture.picture_buffer_id(),
 213           picture.bitstream_buffer_id()))) {
 214     DLOG(ERROR) << "Send(AcceleratedVideoDecoderHostMsg_PictureReady) failed";
 215   }
 216 }
 217
 218 void GpuVideoDecodeAccelerator::NotifyError(
 219     media::VideoDecodeAccelerator::Error error) {
 220   if (!Send(new AcceleratedVideoDecoderHostMsg_ErrorNotification(
 221           host_route_id_, error))) {
 222     DLOG(ERROR) << "Send(AcceleratedVideoDecoderHostMsg_ErrorNotification) "
 223                 << "failed";
 224   }
 225 }
 226
 227 void GpuVideoDecodeAccelerator::Initialize(
 228     const media::VideoCodecProfile profile,
 229     IPC::Message* init_done_msg) {
 230   DCHECK(!video_decode_accelerator_.get());
 231
 232   if (!stub_->channel()->AddRoute(host_route_id_, this)) {
 233     DLOG(ERROR) << "GpuVideoDecodeAccelerator::Initialize(): "
 234                    "failed to add route";
 235     SendCreateDecoderReply(init_done_msg, false);
 236   }
 237
 238 #if !defined(OS_WIN)
 239   // Ensure we will be able to get a GL context at all before initializing
 240   // non-Windows VDAs.
 241   if (!make_context_current_.Run()) {
 242     SendCreateDecoderReply(init_done_msg, false);
 243     return;
 244   }
 245 #endif
 246
 247 #if defined(OS_WIN)
 248   if (base::win::GetVersion() < base::win::VERSION_WIN7) {
 249     NOTIMPLEMENTED() << "HW video decode acceleration not available.";
 250     SendCreateDecoderReply(init_done_msg, false);
 251     return;
 252   }
 253   DVLOG(0) << "Initializing DXVA HW decoder for windows.";
 254   video_decode_accelerator_.reset(
 255       new DXVAVideoDecodeAccelerator(make_context_current_));
 256 #elif defined(OS_CHROMEOS) && defined(ARCH_CPU_ARMEL) && defined(USE_X11)
 257   scoped_ptr<V4L2Device> device = V4L2Device::Create(V4L2Device::kDecoder);
 258   if (!device.get()) {
 259     SendCreateDecoderReply(init_done_msg, false);
 260     return;
 261   }
 262   video_decode_accelerator_.reset(new V4L2VideoDecodeAccelerator(
 263       gfx::GLSurfaceEGL::GetHardwareDisplay(),
 264       stub_->decoder()->GetGLContext()->GetHandle(),
 265       weak_factory_for_io_.GetWeakPtr(),
 266       make_context_current_,
 267       device.Pass(),
 268       io_message_loop_));
 269 #elif defined(ARCH_CPU_X86_FAMILY) && defined(USE_OZONE)
 270   video_decode_accelerator_.reset(new VaapiVideoDecodeAccelerator(
 271       make_context_current_));
 272 #elif defined(ARCH_CPU_X86_FAMILY) && defined(USE_X11)
 273   if (gfx::GetGLImplementation() != gfx::kGLImplementationDesktopGL) {
 274     VLOG(1) << "HW video decode acceleration not available without "
 275                "DesktopGL (GLX).";
 276     SendCreateDecoderReply(init_done_msg, false);
 277     return;
 278   }
 279   gfx::GLContextGLX* glx_context =
 280       static_cast<gfx::GLContextGLX*>(stub_->decoder()->GetGLContext());
 281   video_decode_accelerator_.reset(new VaapiVideoDecodeAccelerator(
 282       glx_context->display(), make_context_current_));
 283 #elif defined(OS_ANDROID)
 284   video_decode_accelerator_.reset(new AndroidVideoDecodeAccelerator(
 285       stub_->decoder()->AsWeakPtr(),
 286       make_context_current_));
 287 #else
 288   NOTIMPLEMENTED() << "HW video decode acceleration not available.";
 289   SendCreateDecoderReply(init_done_msg, false);
 290   return;
 291 #endif
 292
 293   if (video_decode_accelerator_->CanDecodeOnIOThread()) {
 294     filter_ = new MessageFilter(this, host_route_id_);
 295     stub_->channel()->AddFilter(filter_.get());
 296   }
 297
 298   if (!video_decode_accelerator_->Initialize(profile, this)) {
 299     SendCreateDecoderReply(init_done_msg, false);
 300     return;
 301   }
 302
 303   SendCreateDecoderReply(init_done_msg, true);
 304 }
 305
 306 // Runs on IO thread if video_decode_accelerator_->CanDecodeOnIOThread() is
 307 // true, otherwise on the main thread.
 308 void GpuVideoDecodeAccelerator::OnDecode(
 309     base::SharedMemoryHandle handle, int32 id, uint32 size) {
 310   DCHECK(video_decode_accelerator_.get());
 311   if (id < 0) {
 312     DLOG(ERROR) << "BitstreamBuffer id " << id << " out of range";
 313     if (child_message_loop_->BelongsToCurrentThread()) {
 314       NotifyError(media::VideoDecodeAccelerator::INVALID_ARGUMENT);
 315     } else {
 316       child_message_loop_->PostTask(
 317           FROM_HERE,
 318           base::Bind(&GpuVideoDecodeAccelerator::NotifyError,
 319                      base::Unretained(this),
 320                      media::VideoDecodeAccelerator::INVALID_ARGUMENT));
 321     }
 322     return;
 323   }
 324   video_decode_accelerator_->Decode(media::BitstreamBuffer(id, handle, size));
 325 }
 326
 327 void GpuVideoDecodeAccelerator::OnAssignPictureBuffers(
 328     const std::vector<int32>& buffer_ids,
 329     const std::vector<uint32>& texture_ids) {
 330   if (buffer_ids.size() != texture_ids.size()) {
 331     NotifyError(media::VideoDecodeAccelerator::INVALID_ARGUMENT);
 332     return;
 333   }
 334
 335   gpu::gles2::GLES2Decoder* command_decoder = stub_->decoder();
 336   gpu::gles2::TextureManager* texture_manager =
 337       command_decoder->GetContextGroup()->texture_manager();
 338
 339   std::vector<media::PictureBuffer> buffers;
 340   std::vector<scoped_refptr<gpu::gles2::TextureRef> > textures;
 341   for (uint32 i = 0; i < buffer_ids.size(); ++i) {
 342     if (buffer_ids[i] < 0) {
 343       DLOG(ERROR) << "Buffer id " << buffer_ids[i] << " out of range";
 344       NotifyError(media::VideoDecodeAccelerator::INVALID_ARGUMENT);
 345       return;
 346     }
 347     gpu::gles2::TextureRef* texture_ref = texture_manager->GetTexture(
 348         texture_ids[i]);
 349     if (!texture_ref) {
 350       DLOG(ERROR) << "Failed to find texture id " << texture_ids[i];
 351       NotifyError(media::VideoDecodeAccelerator::INVALID_ARGUMENT);
 352       return;
 353     }
 354     gpu::gles2::Texture* info = texture_ref->texture();
 355     if (info->target() != texture_target_) {
 356       DLOG(ERROR) << "Texture target mismatch for texture id "
 357                   << texture_ids[i];
 358       NotifyError(media::VideoDecodeAccelerator::INVALID_ARGUMENT);
 359       return;
 360     }
 361     if (texture_target_ == GL_TEXTURE_EXTERNAL_OES) {
 362       // GL_TEXTURE_EXTERNAL_OES textures have their dimensions defined by the
 363       // underlying EGLImage.  Use |texture_dimensions_| for this size.
 364       texture_manager->SetLevelInfo(texture_ref,
 365                                     GL_TEXTURE_EXTERNAL_OES,
 366                                     0,
 367                                     0,
 368                                     texture_dimensions_.width(),
 369                                     texture_dimensions_.height(),
 370                                     1,
 371                                     0,
 372                                     0,
 373                                     0,
 374                                     false);
 375     } else {
 376       // For other targets, texture dimensions should already be defined.
 377       GLsizei width = 0, height = 0;
 378       info->GetLevelSize(texture_target_, 0, &width, &height);
 379       if (width != texture_dimensions_.width() ||
 380           height != texture_dimensions_.height()) {
 381         DLOG(ERROR) << "Size mismatch for texture id " << texture_ids[i];
 382         NotifyError(media::VideoDecodeAccelerator::INVALID_ARGUMENT);
 383         return;
 384       }
 385     }
 386     uint32 service_texture_id;
 387     if (!command_decoder->GetServiceTextureId(
 388             texture_ids[i], &service_texture_id)) {
 389       DLOG(ERROR) << "Failed to translate texture!";
 390       NotifyError(media::VideoDecodeAccelerator::PLATFORM_FAILURE);
 391       return;
 392     }
 393     buffers.push_back(media::PictureBuffer(
 394         buffer_ids[i], texture_dimensions_, service_texture_id));
 395     textures.push_back(texture_ref);
 396   }
 397   video_decode_accelerator_->AssignPictureBuffers(buffers);
 398   DebugAutoLock auto_lock(debug_uncleared_textures_lock_);
 399   for (uint32 i = 0; i < buffer_ids.size(); ++i)
 400     uncleared_textures_[buffer_ids[i]] = textures[i];
 401 }
 402
 403 void GpuVideoDecodeAccelerator::OnReusePictureBuffer(
 404     int32 picture_buffer_id) {
 405   DCHECK(video_decode_accelerator_.get());
 406   video_decode_accelerator_->ReusePictureBuffer(picture_buffer_id);
 407 }
 408
 409 void GpuVideoDecodeAccelerator::OnFlush() {
 410   DCHECK(video_decode_accelerator_.get());
 411   video_decode_accelerator_->Flush();
 412 }
 413
 414 void GpuVideoDecodeAccelerator::OnReset() {
 415   DCHECK(video_decode_accelerator_.get());
 416   video_decode_accelerator_->Reset();
 417 }
 418
 419 void GpuVideoDecodeAccelerator::OnDestroy() {
 420   DCHECK(video_decode_accelerator_.get());
 421   OnWillDestroyStub();
 422 }
 423
 424 void GpuVideoDecodeAccelerator::OnFilterRemoved() {
 425   // We're destroying; cancel all callbacks.
 426   weak_factory_for_io_.InvalidateWeakPtrs();
 427   filter_removed_.Signal();
 428 }
 429
 430 void GpuVideoDecodeAccelerator::NotifyEndOfBitstreamBuffer(
 431     int32 bitstream_buffer_id) {
 432   if (!Send(new AcceleratedVideoDecoderHostMsg_BitstreamBufferProcessed(
 433           host_route_id_, bitstream_buffer_id))) {
 434     DLOG(ERROR)
 435         << "Send(AcceleratedVideoDecoderHostMsg_BitstreamBufferProcessed) "
 436         << "failed";
 437   }
 438 }
 439
 440 void GpuVideoDecodeAccelerator::NotifyFlushDone() {
 441   if (!Send(new AcceleratedVideoDecoderHostMsg_FlushDone(host_route_id_)))
 442     DLOG(ERROR) << "Send(AcceleratedVideoDecoderHostMsg_FlushDone) failed";
 443 }
 444
 445 void GpuVideoDecodeAccelerator::NotifyResetDone() {
 446   if (!Send(new AcceleratedVideoDecoderHostMsg_ResetDone(host_route_id_)))
 447     DLOG(ERROR) << "Send(AcceleratedVideoDecoderHostMsg_ResetDone) failed";
 448 }
 449
 450 void GpuVideoDecodeAccelerator::OnWillDestroyStub() {
 451   // The stub is going away, so we have to stop and destroy VDA here, before
 452   // returning, because the VDA may need the GL context to run and/or do its
 453   // cleanup. We cannot destroy the VDA before the IO thread message filter is
 454   // removed however, since we cannot service incoming messages with VDA gone.
 455   // We cannot simply check for existence of VDA on IO thread though, because
 456   // we don't want to synchronize the IO thread with the ChildThread.
 457   // So we have to wait for the RemoveFilter callback here instead and remove
 458   // the VDA after it arrives and before returning.
 459   if (filter_.get()) {
 460     stub_->channel()->RemoveFilter(filter_.get());
 461     filter_removed_.Wait();
 462   }
 463
 464   stub_->channel()->RemoveRoute(host_route_id_);
 465   stub_->RemoveDestructionObserver(this);
 466
 467   if (video_decode_accelerator_)
 468     video_decode_accelerator_.release()->Destroy();
 469
 470   delete this;
 471 }
 472
 473 void GpuVideoDecodeAccelerator::SetTextureCleared(
 474     const media::Picture& picture) {
 475   DCHECK(child_message_loop_->BelongsToCurrentThread());
 476   DebugAutoLock auto_lock(debug_uncleared_textures_lock_);
 477   std::map<int32, scoped_refptr<gpu::gles2::TextureRef> >::iterator it;
 478   it = uncleared_textures_.find(picture.picture_buffer_id());
 479   if (it == uncleared_textures_.end())
 480     return;  // the texture has been cleared
 481
 482   scoped_refptr<gpu::gles2::TextureRef> texture_ref = it->second;
 483   GLenum target = texture_ref->texture()->target();
 484   gpu::gles2::TextureManager* texture_manager =
 485       stub_->decoder()->GetContextGroup()->texture_manager();
 486   DCHECK(!texture_ref->texture()->IsLevelCleared(target, 0));
 487   texture_manager->SetLevelCleared(texture_ref, target, 0, true);
 488   uncleared_textures_.erase(it);
 489 }
 490
 491 bool GpuVideoDecodeAccelerator::Send(IPC::Message* message) {
 492   if (filter_.get() && io_message_loop_->BelongsToCurrentThread())
 493     return filter_->SendOnIOThread(message);
 494   DCHECK(child_message_loop_->BelongsToCurrentThread());
 495   return stub_->channel()->Send(message);
 496 }
 497
 498 void GpuVideoDecodeAccelerator::SendCreateDecoderReply(IPC::Message* message,
 499                                                        bool succeeded) {
 500   GpuCommandBufferMsg_CreateVideoDecoder::WriteReplyParams(message, succeeded);
 501   Send(message);
 502 }
 503
 504 }  // namespace content