chromecast/renderer/media/hole_frame_factory.cc - Issue 1873513003: Add video-rendering to mojo media pipeline.

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Issue 1873513003: Add video-rendering to mojo media pipeline. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: uses VideoOverlayFactory in CmaRenderer Created 4 years, 7 months ago

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1 // Copyright 2015 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 "chromecast/renderer/media/hole_frame_factory.h"

6

7 #include "base/bind.h"

8 #include "base/location.h"

9 #include "gpu/GLES2/gl2extchromium.h"

10 #include "gpu/command_buffer/client/gles2_interface.h"

11 #include "media/base/video_frame.h"

12 #include "media/renderers/gpu_video_accelerator_factories.h"

13

14 namespace chromecast {

15 namespace media {

16

17 HoleFrameFactory::HoleFrameFactory(

18 ::media::GpuVideoAcceleratorFactories* gpu_factories)

19 : gpu_factories_(gpu_factories), texture_(0), image_id_(0) {

20 if (gpu_factories_) {

21 std::unique_ptr<::media::GpuVideoAcceleratorFactories::ScopedGLContextLock>

22 lock(gpu_factories_->GetGLContextLock());

23 CHECK(lock);

24 gpu::gles2::GLES2Interface* gl = lock->ContextGL();

25

26 gl->GenTextures(1, &texture_);

27 gl->BindTexture(GL_TEXTURE_2D, texture_);

28 image_id_ = gl->CreateGpuMemoryBufferImageCHROMIUM(1, 1, GL_RGBA,

29 GL_READ_WRITE_CHROMIUM);

30 CHECK(image_id_);

31 gl->BindTexImage2DCHROMIUM(GL_TEXTURE_2D, image_id_);

32

33 gl->GenMailboxCHROMIUM(mailbox_.name);

34 gl->ProduceTextureDirectCHROMIUM(texture_, GL_TEXTURE_2D, mailbox_.name);

35

36 const GLuint64 fence_sync = gl->InsertFenceSyncCHROMIUM();

37 gl->ShallowFlushCHROMIUM();

38 gl->GenSyncTokenCHROMIUM(fence_sync, sync_token_.GetData());

39 }

40 }

41

42 HoleFrameFactory::~HoleFrameFactory() {

43 if (texture_) {

44 std::unique_ptr<::media::GpuVideoAcceleratorFactories::ScopedGLContextLock>

45 lock(gpu_factories_->GetGLContextLock());

46 CHECK(lock);

47 gpu::gles2::GLES2Interface* gl = lock->ContextGL();

48 gl->BindTexture(GL_TEXTURE_2D, texture_);

49 gl->ReleaseTexImage2DCHROMIUM(GL_TEXTURE_2D, image_id_);

50 gl->DeleteTextures(1, &texture_);

51 gl->DestroyImageCHROMIUM(image_id_);

52 }

53 }

54

55 scoped_refptr<::media::VideoFrame> HoleFrameFactory::CreateHoleFrame(

56 const gfx::Size& size) {

57 // No texture => audio device. size empty => video has one dimension = 0.

58 // Dimension 0 case triggers a DCHECK later on in TextureMailbox if we push

59 // through the overlay path.

60 if (!texture_ \|\| size.IsEmpty()) {

61 LOG(INFO) << "Create black frame " << size.width() << "x" << size.height();

62 return ::media::VideoFrame::CreateBlackFrame(gfx::Size(1, 1));

63 }

64

65 LOG(INFO) << "Create hole frame " << size.width() << "x" << size.height();

66 gpu::MailboxHolder holders[::media::VideoFrame::kMaxPlanes] = {

67 gpu::MailboxHolder(mailbox_, sync_token_, GL_TEXTURE_2D)};

68 scoped_refptr<::media::VideoFrame> frame =

69 ::media::VideoFrame::WrapNativeTextures(

70 ::media::PIXEL_FORMAT_XRGB, holders,

71 ::media::VideoFrame::ReleaseMailboxCB(),

72 size, // coded_size

73 gfx::Rect(size), // visible rect

74 size, // natural size

75 base::TimeDelta()); // timestamp

76 CHECK(frame);

77 frame->metadata()->SetBoolean(::media::VideoFrameMetadata::ALLOW_OVERLAY,

78 true);

79 return frame;

80 }

81

82 } // namespace media

83 } // namespace chromecast

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