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Side by Side Diff: webkit/renderer/media/crypto/ppapi/fake_cdm_video_decoder.cc

Issue 22362007: Relocate last remnants of webkit/renderer/media code. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Make chromeos crypto dep explicit. Created 7 years, 4 months ago
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1 // Copyright 2013 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 "webkit/renderer/media/crypto/ppapi/fake_cdm_video_decoder.h"
6
7 #include "base/logging.h"
8 #include "webkit/renderer/media/crypto/ppapi/cdm/content_decryption_module.h"
9
10 namespace webkit_media {
11
12 FakeCdmVideoDecoder::FakeCdmVideoDecoder(cdm::Host* host)
13 : is_initialized_(false),
14 host_(host) {
15 }
16
17 FakeCdmVideoDecoder::~FakeCdmVideoDecoder() {
18 Deinitialize();
19 }
20
21 bool FakeCdmVideoDecoder::Initialize(const cdm::VideoDecoderConfig& config) {
22 DVLOG(1) << "Initialize()";
23
24 video_size_ = config.coded_size;
25 is_initialized_ = true;
26 return true;
27 }
28
29 void FakeCdmVideoDecoder::Deinitialize() {
30 DVLOG(1) << "Deinitialize()";
31 is_initialized_ = false;
32 }
33
34 void FakeCdmVideoDecoder::Reset() {
35 DVLOG(1) << "Reset()";
36 }
37
38 // Creates a YV12 video frame.
39 cdm::Status FakeCdmVideoDecoder::DecodeFrame(const uint8_t* compressed_frame,
40 int32_t compressed_frame_size,
41 int64_t timestamp,
42 cdm::VideoFrame* decoded_frame) {
43 DVLOG(1) << "DecodeFrame()";
44
45 // The fake decoder does not buffer any frames internally. So if the input is
46 // empty (EOS), just return kNeedMoreData.
47 if (!decoded_frame)
48 return cdm::kNeedMoreData;
49
50 // Choose non-zero alignment and padding on purpose for testing.
51 const int kAlignment = 8;
52 const int kPadding = 16;
53 const int kPlanePadding = 128;
54
55 int width = video_size_.width;
56 int height = video_size_.height;
57 DCHECK_EQ(width % 2, 0);
58 DCHECK_EQ(height % 2, 0);
59
60 int y_stride = (width + kAlignment - 1) / kAlignment * kAlignment + kPadding;
61 int uv_stride =
62 (width / 2 + kAlignment - 1) / kAlignment * kAlignment + kPadding;
63 int y_rows = height;
64 int uv_rows = height / 2;
65 int y_offset = 0;
66 int v_offset = y_stride * y_rows + kPlanePadding;
67 int u_offset = v_offset + uv_stride * uv_rows + kPlanePadding;
68 int frame_size = u_offset + uv_stride * uv_rows + kPlanePadding;
69
70 decoded_frame->SetFrameBuffer(host_->Allocate(frame_size));
71 decoded_frame->FrameBuffer()->SetSize(frame_size);
72
73 decoded_frame->SetFormat(cdm::kYv12);
74 decoded_frame->SetSize(video_size_);
75 decoded_frame->SetPlaneOffset(cdm::VideoFrame::kYPlane, y_offset);
76 decoded_frame->SetPlaneOffset(cdm::VideoFrame::kVPlane, v_offset);
77 decoded_frame->SetPlaneOffset(cdm::VideoFrame::kUPlane, u_offset);
78 decoded_frame->SetStride(cdm::VideoFrame::kYPlane, y_stride);
79 decoded_frame->SetStride(cdm::VideoFrame::kVPlane, uv_stride);
80 decoded_frame->SetStride(cdm::VideoFrame::kUPlane, uv_stride);
81 decoded_frame->SetTimestamp(timestamp);
82
83 static unsigned char color = 0;
84 color += 10;
85
86 memset(reinterpret_cast<void*>(decoded_frame->FrameBuffer()->Data()),
87 color, frame_size);
88
89 return cdm::kSuccess;
90 }
91
92 } // namespace webkit_media
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