chromecast/media/cma/ipc_streamer/video_decoder_config_marshaller.cc - Issue 2300993003: CmaRenderer is dead. Long live MojoRenderer.

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Issue 2300993003: CmaRenderer is dead. Long live MojoRenderer. (Closed)

Patch Set: Created 4 years, 3 months ago

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1 // Copyright 2014 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/media/cma/ipc_streamer/video_decoder_config_marshaller.h"

6

7 #include <stddef.h>

8 #include <stdint.h>

9

10 #include <vector>

11

12 #include "base/logging.h"

13 #include "chromecast/media/cma/ipc/media_message.h"

14 #include "chromecast/media/cma/ipc_streamer/encryption_scheme_marshaller.h"

15 #include "media/base/video_decoder_config.h"

16 #include "ui/gfx/geometry/rect.h"

17 #include "ui/gfx/geometry/size.h"

18

19 namespace chromecast {

20 namespace media {

21

22 namespace {

23 const size_t kMaxExtraDataSize = 16 * 1024;

24

25 class SizeMarshaller {

26 public:

27 static void Write(const gfx::Size& size, MediaMessage* msg) {

28 CHECK(msg->WritePod(size.width()));

29 CHECK(msg->WritePod(size.height()));

30 }

31

32 static gfx::Size Read(MediaMessage* msg) {

33 int w, h;

34 CHECK(msg->ReadPod(&w));

35 CHECK(msg->ReadPod(&h));

36 return gfx::Size(w, h);

37 }

38 };

39

40 class RectMarshaller {

41 public:

42 static void Write(const gfx::Rect& rect, MediaMessage* msg) {

43 CHECK(msg->WritePod(rect.x()));

44 CHECK(msg->WritePod(rect.y()));

45 CHECK(msg->WritePod(rect.width()));

46 CHECK(msg->WritePod(rect.height()));

47 }

48

49 static gfx::Rect Read(MediaMessage* msg) {

50 int x, y, w, h;

51 CHECK(msg->ReadPod(&x));

52 CHECK(msg->ReadPod(&y));

53 CHECK(msg->ReadPod(&w));

54 CHECK(msg->ReadPod(&h));

55 return gfx::Rect(x, y, w, h);

56 }

57 };

58

59 } // namespace

60

61 // static

62 void VideoDecoderConfigMarshaller::Write(

63 const ::media::VideoDecoderConfig& config, MediaMessage* msg) {

64 CHECK(msg->WritePod(config.codec()));

65 CHECK(msg->WritePod(config.profile()));

66 CHECK(msg->WritePod(config.format()));

67 CHECK(msg->WritePod(config.color_space()));

68 SizeMarshaller::Write(config.coded_size(), msg);

69 RectMarshaller::Write(config.visible_rect(), msg);

70 SizeMarshaller::Write(config.natural_size(), msg);

71 EncryptionSchemeMarshaller::Write(config.encryption_scheme(), msg);

72 CHECK(msg->WritePod(config.extra_data().size()));

73 if (!config.extra_data().empty())

74 CHECK(msg->WriteBuffer(&config.extra_data()[0],

75 config.extra_data().size()));

76 }

77

78 // static

79 ::media::VideoDecoderConfig VideoDecoderConfigMarshaller::Read(

80 MediaMessage* msg) {

81 ::media::VideoCodec codec;

82 ::media::VideoCodecProfile profile;

83 ::media::VideoPixelFormat format;

84 ::media::ColorSpace color_space;

85 gfx::Size coded_size;

86 gfx::Rect visible_rect;

87 gfx::Size natural_size;

88 size_t extra_data_size;

89 ::media::EncryptionScheme encryption_scheme;

90 std::vector<uint8_t> extra_data;

91

92 CHECK(msg->ReadPod(&codec));

93 CHECK(msg->ReadPod(&profile));

94 CHECK(msg->ReadPod(&format));

95 CHECK(msg->ReadPod(&color_space));

96 coded_size = SizeMarshaller::Read(msg);

97 visible_rect = RectMarshaller::Read(msg);

98 natural_size = SizeMarshaller::Read(msg);

99 encryption_scheme = EncryptionSchemeMarshaller::Read(msg);

100 CHECK(msg->ReadPod(&extra_data_size));

101

102 CHECK_GE(codec, ::media::kUnknownVideoCodec);

103 CHECK_LE(codec, ::media::kVideoCodecMax);

104 CHECK_GE(profile, ::media::VIDEO_CODEC_PROFILE_UNKNOWN);

105 CHECK_LE(profile, ::media::VIDEO_CODEC_PROFILE_MAX);

106 CHECK_GE(format, ::media::PIXEL_FORMAT_UNKNOWN);

107 CHECK_LE(format, ::media::PIXEL_FORMAT_MAX);

108 CHECK_GE(color_space, ::media::COLOR_SPACE_UNSPECIFIED);

109 CHECK_LE(color_space, ::media::COLOR_SPACE_MAX);

110 CHECK_LT(extra_data_size, kMaxExtraDataSize);

111 if (extra_data_size > 0) {

112 extra_data.resize(extra_data_size);

113 CHECK(msg->ReadBuffer(&extra_data[0], extra_data.size()));

114 }

115

116 return ::media::VideoDecoderConfig(

117 codec, profile, format, color_space,

118 coded_size, visible_rect, natural_size,

119 extra_data, encryption_scheme);

120 }

121

122 } // namespace media

123 } // namespace chromecast

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