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
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
|
/*
* Copyright (C) 2020 Igalia S.L
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* aint with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#pragma once
#if USE(GSTREAMER) && ENABLE(VIDEO)
#include "GStreamerCommon.h"
#include "ImageDecoder.h"
#include "MIMETypeRegistry.h"
#include "SampleMap.h"
#include "SharedBuffer.h"
#include <wtf/Condition.h>
#include <wtf/Forward.h>
#include <wtf/Lock.h>
#include <wtf/RunLoop.h>
#include <wtf/WeakPtr.h>
namespace WebCore {
class ContentType;
class ImageDecoderGStreamerSample;
class ImageDecoderGStreamer final : public ImageDecoder {
WTF_MAKE_FAST_ALLOCATED;
WTF_MAKE_NONCOPYABLE(ImageDecoderGStreamer);
public:
static RefPtr<ImageDecoderGStreamer> create(FragmentedSharedBuffer&, const String& mimeType, AlphaOption, GammaAndColorProfileOption);
ImageDecoderGStreamer(FragmentedSharedBuffer&, const String& mimeType, AlphaOption, GammaAndColorProfileOption);
virtual ~ImageDecoderGStreamer() = default;
static bool supportsMediaType(MediaType type) { return type == MediaType::Video; }
static bool supportsContainerType(const String&);
size_t bytesDecodedToDetermineProperties() const override { return 0; }
static bool canDecodeType(const String& mimeType);
void setEncodedDataStatusChangeCallback(Function<void(EncodedDataStatus)>&& callback) final { m_encodedDataStatusChangedCallback = WTFMove(callback); }
EncodedDataStatus encodedDataStatus() const final;
IntSize size() const final;
size_t frameCount() const final { return m_sampleData.size(); }
RepetitionCount repetitionCount() const final;
String uti() const final;
String filenameExtension() const final { return MIMETypeRegistry::preferredExtensionForMIMEType(m_mimeType); }
std::optional<IntPoint> hotSpot() const final { return std::nullopt; }
IntSize frameSizeAtIndex(size_t, SubsamplingLevel = SubsamplingLevel::Default) const final { return size(); }
bool frameIsCompleteAtIndex(size_t index) const final { return sampleAtIndex(index); }
ImageDecoder::FrameMetadata frameMetadataAtIndex(size_t) const final;
Seconds frameDurationAtIndex(size_t) const final;
bool frameHasAlphaAtIndex(size_t) const final;
bool frameAllowSubsamplingAtIndex(size_t index) const final { return index <= m_sampleData.size(); }
unsigned frameBytesAtIndex(size_t, SubsamplingLevel = SubsamplingLevel::Default) const final;
PlatformImagePtr createFrameImageAtIndex(size_t, SubsamplingLevel = SubsamplingLevel::Default, const DecodingOptions& = DecodingOptions(DecodingMode::Synchronous)) final;
void setExpectedContentSize(long long) final { }
void setData(const FragmentedSharedBuffer&, bool allDataReceived) final;
bool isAllDataReceived() const final { return m_eos; }
void clearFrameBufferCache(size_t) final;
void setHasEOS();
void notifySample(GRefPtr<GstSample>&&);
private:
class InnerDecoder : public ThreadSafeRefCounted<InnerDecoder>, public CanMakeWeakPtr<InnerDecoder> {
WTF_MAKE_FAST_ALLOCATED;
WTF_MAKE_NONCOPYABLE(InnerDecoder);
public:
static RefPtr<InnerDecoder> create(ImageDecoderGStreamer& decoder, const uint8_t* data, gssize size)
{
return adoptRef(*new InnerDecoder(decoder, data, size));
}
InnerDecoder(ImageDecoderGStreamer& decoder, const uint8_t* data, gssize size)
: m_decoder(decoder)
, m_runLoop(RunLoop::current())
{
m_memoryStream = adoptGRef(g_memory_input_stream_new_from_data(data, size, nullptr));
}
~InnerDecoder();
void run();
EncodedDataStatus encodedDataStatus() const;
private :
static void decodebinPadAddedCallback(ImageDecoderGStreamer::InnerDecoder*, GstPad*);
void handleMessage(GstMessage*);
void preparePipeline();
void connectDecoderPad(GstPad*);
ImageDecoderGStreamer& m_decoder;
GRefPtr<GstElement> m_pipeline;
GRefPtr<GInputStream> m_memoryStream;
GRefPtr<GstElement> m_decodebin;
RunLoop& m_runLoop;
Condition m_messageCondition;
Lock m_messageLock;
bool m_messageDispatched WTF_GUARDED_BY_LOCK(m_messageLock) { false };
};
void handleSample(GRefPtr<GstSample>&&);
void pushEncodedData(const FragmentedSharedBuffer&);
const ImageDecoderGStreamerSample* sampleAtIndex(size_t) const;
Function<void(EncodedDataStatus)> m_encodedDataStatusChangedCallback;
SampleMap m_sampleData;
DecodeOrderSampleMap::iterator m_cursor;
Lock m_sampleGeneratorLock;
bool m_eos { false };
std::optional<IntSize> m_size;
String m_mimeType;
RefPtr<ImageDecoderGStreamer::InnerDecoder> m_innerDecoder;
Condition m_sampleCondition;
Lock m_sampleLock;
GRefPtr<GstSample> m_sample WTF_GUARDED_BY_LOCK(m_sampleLock);
Condition m_handlerCondition;
Lock m_handlerLock;
};
}
#endif
|
