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
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
|
/*
* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "webrtc/modules/video_coding/main/interface/video_coding.h"
#include "webrtc/modules/video_coding/main/source/generic_decoder.h"
#include "webrtc/modules/video_coding/main/source/internal_defines.h"
#include "webrtc/system_wrappers/include/clock.h"
#include "webrtc/system_wrappers/include/logging.h"
namespace webrtc {
VCMDecodedFrameCallback::VCMDecodedFrameCallback(VCMTiming& timing,
Clock* clock)
:
_critSect(CriticalSectionWrapper::CreateCriticalSection()),
_clock(clock),
_receiveCallback(NULL),
_timing(timing),
_timestampMap(kDecoderFrameMemoryLength),
_lastReceivedPictureID(0)
{
}
VCMDecodedFrameCallback::~VCMDecodedFrameCallback()
{
delete _critSect;
}
void VCMDecodedFrameCallback::SetUserReceiveCallback(
VCMReceiveCallback* receiveCallback)
{
CriticalSectionScoped cs(_critSect);
_receiveCallback = receiveCallback;
}
VCMReceiveCallback* VCMDecodedFrameCallback::UserReceiveCallback()
{
CriticalSectionScoped cs(_critSect);
return _receiveCallback;
}
int32_t VCMDecodedFrameCallback::Decoded(VideoFrame& decodedImage) {
// TODO(holmer): We should improve this so that we can handle multiple
// callbacks from one call to Decode().
VCMFrameInformation* frameInfo;
VCMReceiveCallback* callback;
{
CriticalSectionScoped cs(_critSect);
frameInfo = _timestampMap.Pop(decodedImage.timestamp());
callback = _receiveCallback;
}
if (frameInfo == NULL) {
LOG(LS_WARNING) << "Too many frames backed up in the decoder, dropping "
"this one.";
return WEBRTC_VIDEO_CODEC_OK;
}
_timing.StopDecodeTimer(
decodedImage.timestamp(),
frameInfo->decodeStartTimeMs,
_clock->TimeInMilliseconds(),
frameInfo->renderTimeMs);
if (callback != NULL)
{
decodedImage.set_render_time_ms(frameInfo->renderTimeMs);
decodedImage.set_rotation(frameInfo->rotation);
callback->FrameToRender(decodedImage);
}
return WEBRTC_VIDEO_CODEC_OK;
}
int32_t
VCMDecodedFrameCallback::ReceivedDecodedReferenceFrame(
const uint64_t pictureId)
{
CriticalSectionScoped cs(_critSect);
if (_receiveCallback != NULL)
{
return _receiveCallback->ReceivedDecodedReferenceFrame(pictureId);
}
return -1;
}
int32_t
VCMDecodedFrameCallback::ReceivedDecodedFrame(const uint64_t pictureId)
{
_lastReceivedPictureID = pictureId;
return 0;
}
uint64_t VCMDecodedFrameCallback::LastReceivedPictureID() const
{
return _lastReceivedPictureID;
}
void VCMDecodedFrameCallback::Map(uint32_t timestamp,
VCMFrameInformation* frameInfo) {
CriticalSectionScoped cs(_critSect);
_timestampMap.Add(timestamp, frameInfo);
}
int32_t VCMDecodedFrameCallback::Pop(uint32_t timestamp)
{
CriticalSectionScoped cs(_critSect);
if (_timestampMap.Pop(timestamp) == NULL)
{
return VCM_GENERAL_ERROR;
}
return VCM_OK;
}
VCMGenericDecoder::VCMGenericDecoder(VideoDecoder& decoder, bool isExternal)
:
_callback(NULL),
_frameInfos(),
_nextFrameInfoIdx(0),
_decoder(decoder),
_codecType(kVideoCodecUnknown),
_isExternal(isExternal),
_keyFrameDecoded(false)
{
}
VCMGenericDecoder::~VCMGenericDecoder()
{
}
int32_t VCMGenericDecoder::InitDecode(const VideoCodec* settings,
int32_t numberOfCores)
{
_codecType = settings->codecType;
return _decoder.InitDecode(settings, numberOfCores);
}
int32_t VCMGenericDecoder::Decode(const VCMEncodedFrame& frame,
int64_t nowMs)
{
_frameInfos[_nextFrameInfoIdx].decodeStartTimeMs = nowMs;
_frameInfos[_nextFrameInfoIdx].renderTimeMs = frame.RenderTimeMs();
_frameInfos[_nextFrameInfoIdx].rotation = frame.rotation();
_callback->Map(frame.TimeStamp(), &_frameInfos[_nextFrameInfoIdx]);
_nextFrameInfoIdx = (_nextFrameInfoIdx + 1) % kDecoderFrameMemoryLength;
int32_t ret = _decoder.Decode(frame.EncodedImage(),
frame.MissingFrame(),
frame.FragmentationHeader(),
frame.CodecSpecific(),
frame.RenderTimeMs());
if (ret < WEBRTC_VIDEO_CODEC_OK)
{
LOG(LS_WARNING) << "Failed to decode frame with timestamp "
<< frame.TimeStamp() << ", error code: " << ret;
_callback->Pop(frame.TimeStamp());
return ret;
}
else if (ret == WEBRTC_VIDEO_CODEC_NO_OUTPUT ||
ret == WEBRTC_VIDEO_CODEC_REQUEST_SLI)
{
// No output
_callback->Pop(frame.TimeStamp());
}
return ret;
}
int32_t
VCMGenericDecoder::Release()
{
return _decoder.Release();
}
int32_t VCMGenericDecoder::Reset()
{
return _decoder.Reset();
}
int32_t VCMGenericDecoder::RegisterDecodeCompleteCallback(VCMDecodedFrameCallback* callback)
{
_callback = callback;
return _decoder.RegisterDecodeCompleteCallback(callback);
}
bool VCMGenericDecoder::External() const
{
return _isExternal;
}
} // namespace
|
