1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
|
// Copyright 2019 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.
#ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_WEBCODECS_VIDEO_DECODER_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_WEBCODECS_VIDEO_DECODER_H_
#include <stdint.h>
#include <memory>
#include "media/base/status.h"
#include "media/base/video_decoder.h"
#include "media/base/video_decoder_config.h"
#include "media/media_buildflags.h"
#include "third_party/blink/renderer/bindings/core/v8/script_promise.h"
#include "third_party/blink/renderer/bindings/core/v8/script_promise_resolver.h"
#include "third_party/blink/renderer/bindings/modules/v8/v8_video_frame_output_callback.h"
#include "third_party/blink/renderer/bindings/modules/v8/v8_web_codecs_error_callback.h"
#include "third_party/blink/renderer/modules/modules_export.h"
#include "third_party/blink/renderer/modules/webcodecs/codec_config_eval.h"
#include "third_party/blink/renderer/modules/webcodecs/decoder_template.h"
#include "third_party/blink/renderer/platform/bindings/script_wrappable.h"
#include "third_party/blink/renderer/platform/heap/garbage_collected.h"
#include "third_party/blink/renderer/platform/heap/heap.h"
#include "third_party/blink/renderer/platform/heap/heap_allocator.h"
#include "third_party/blink/renderer/platform/heap/member.h"
namespace media {
class VideoFrame;
class DecoderBuffer;
class MediaLog;
#if BUILDFLAG(USE_PROPRIETARY_CODECS)
class H264ToAnnexBBitstreamConverter;
namespace mp4 {
struct AVCDecoderConfigurationRecord;
}
#endif // BUILDFLAG(USE_PROPRIETARY_CODECS)
} // namespace media
namespace blink {
class EncodedVideoChunk;
class ExceptionState;
class VideoDecoderConfig;
class VideoDecoderInit;
class VideoFrame;
class V8VideoFrameOutputCallback;
class MODULES_EXPORT VideoDecoderTraits {
public:
using InitType = VideoDecoderInit;
using OutputType = VideoFrame;
using MediaOutputType = media::VideoFrame;
using MediaDecoderType = media::VideoDecoder;
using OutputCallbackType = V8VideoFrameOutputCallback;
using ConfigType = VideoDecoderConfig;
using MediaConfigType = media::VideoDecoderConfig;
using InputType = EncodedVideoChunk;
static constexpr bool kNeedsGpuFactories = true;
static std::unique_ptr<MediaDecoderType> CreateDecoder(
ExecutionContext& execution_context,
media::GpuVideoAcceleratorFactories* gpu_factories,
media::MediaLog* media_log);
static void InitializeDecoder(MediaDecoderType& decoder,
const MediaConfigType& media_config,
MediaDecoderType::InitCB init_cb,
MediaDecoderType::OutputCB output_cb);
static int GetMaxDecodeRequests(const MediaDecoderType& decoder);
static void UpdateDecoderLog(const MediaDecoderType& decoder,
const MediaConfigType& media_config,
media::MediaLog* media_log);
};
class MODULES_EXPORT VideoDecoder : public DecoderTemplate<VideoDecoderTraits> {
DEFINE_WRAPPERTYPEINFO();
public:
static VideoDecoder* Create(ScriptState*,
const VideoDecoderInit*,
ExceptionState&);
VideoDecoder(ScriptState*, const VideoDecoderInit*, ExceptionState&);
~VideoDecoder() override = default;
protected:
CodecConfigEval MakeMediaConfig(const ConfigType& config,
MediaConfigType* out_media_config,
String* out_console_message) override;
media::StatusOr<scoped_refptr<media::DecoderBuffer>> MakeDecoderBuffer(
const InputType& input) override;
#if BUILDFLAG(USE_PROPRIETARY_CODECS)
std::unique_ptr<media::H264ToAnnexBBitstreamConverter> h264_converter_;
std::unique_ptr<media::mp4::AVCDecoderConfigurationRecord> h264_avcc_;
#endif // BUILDFLAG(USE_PROPRIETARY_CODECS)
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_WEBCODECS_VIDEO_DECODER_H_
|
