|
1 /* |
|
2 * Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies). |
|
3 * All rights reserved. |
|
4 * This component and the accompanying materials are made available |
|
5 * under the terms of "Eclipse Public License v1.0" |
|
6 * which accompanies this distribution, and is available |
|
7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
|
8 * |
|
9 * Initial Contributors: |
|
10 * Nokia Corporation - initial contribution. |
|
11 * |
|
12 * Contributors: |
|
13 * |
|
14 * Description: |
|
15 * |
|
16 */ |
|
17 |
|
18 |
|
19 |
|
20 |
|
21 #ifndef MCCVIDEOSINKUSER_H |
|
22 #define MCCVIDEOSINKUSER_H |
|
23 |
|
24 // INCLUDES |
|
25 #include <e32base.h> |
|
26 #include "rtpdef.h" |
|
27 #include "mccinternalcodecs.h" |
|
28 #include "mccvideojitterbuffer.h" |
|
29 |
|
30 // N times average timestamp difference in timestamps between subsequent packets |
|
31 // is allowed |
|
32 const TInt KMccTimeStampDifferenceTreshold = 20; |
|
33 |
|
34 // Number of subsequent timestamps stored |
|
35 const TInt KMccTimeStampArraySize = 4; |
|
36 |
|
37 // Minimum size for Helix PacketSink queue |
|
38 const TInt KMccMinXPSQueueSize = 1000; |
|
39 |
|
40 // Limits for sequence number based timestamp difference threshold |
|
41 const TInt KMccSeqNumDifferenceThresholdMin = 10; |
|
42 const TInt KMccSeqNumDifferenceThresholdMax = 100; |
|
43 |
|
44 // Mininum payload buffer size |
|
45 const TInt KMccVideoSinkMinPayloadBufSize = 4096; |
|
46 |
|
47 // MACROS |
|
48 |
|
49 // DATA TYPES |
|
50 |
|
51 // FUNCTION PROTOTYPES |
|
52 |
|
53 // FORWARD DECLARATIONS |
|
54 class CXPSPacketSink; |
|
55 |
|
56 // CLASS DECLARATION |
|
57 |
|
58 class TMccTimeStampEntry |
|
59 { |
|
60 public: |
|
61 |
|
62 inline TMccTimeStampEntry(); |
|
63 |
|
64 inline TMccTimeStampEntry( TInt64 aTime, TUint16 aSeq ); |
|
65 |
|
66 TInt64 iTime; |
|
67 TUint16 iSeq; |
|
68 }; |
|
69 |
|
70 /** |
|
71 * Stores details of single videosink user. Is used also to detect |
|
72 * incorrect RTP timestamp usage. If other end is detected |
|
73 * to be misbehaving, timestamps are tried to be corrected as otherwise |
|
74 * video player is not able to playback the stream. |
|
75 * |
|
76 * @lib |
|
77 * @since |
|
78 */ |
|
79 class CMccVideoSinkUser : public CBase, public MMccVideoJitterBufferObserver |
|
80 { |
|
81 public: // Enumerations |
|
82 |
|
83 enum TMccPacketOverflowState |
|
84 { |
|
85 ENormal, |
|
86 EOccured, |
|
87 ERecovered |
|
88 }; |
|
89 |
|
90 enum TMccTimeStampModifyMode |
|
91 { |
|
92 EModifyInit, |
|
93 EModifyRequiredMonitoring, |
|
94 EModifyRequired, |
|
95 EModifyNotRequiredMonitoring, |
|
96 EModifyNotRequired |
|
97 }; |
|
98 |
|
99 public: // Functions |
|
100 |
|
101 /** |
|
102 * Constructor |
|
103 */ |
|
104 static CMccVideoSinkUser* NewL( MAsyncEventHandler* aAsyncEventHandler, |
|
105 TUid aMediaType, |
|
106 TUint aStreamId, |
|
107 TReal aFrameRate, |
|
108 CXPSPacketSink& aPacketSink ); |
|
109 |
|
110 /** |
|
111 * Constructor |
|
112 */ |
|
113 static CMccVideoSinkUser* NewLC( MAsyncEventHandler* aAsyncEventHandler, |
|
114 TUid aMediaType, |
|
115 TUint aStreamId, |
|
116 TReal aFrameRate, |
|
117 CXPSPacketSink& aPacketSink ); |
|
118 |
|
119 ~CMccVideoSinkUser(); |
|
120 |
|
121 /** |
|
122 * Enqueue packet |
|
123 * @param aHeader |
|
124 * @param aPayloadData |
|
125 */ |
|
126 CMccVideoJitterBuffer::TMccPacketBufferingStatus |
|
127 EnqueueL( const TRtpRecvHeader& aHeaderInfo, |
|
128 const TDesC8& aPayloadData ); |
|
129 |
|
130 /** |
|
131 * Set identifier values. E.g. can be used if this class is used |
|
132 * as dummy search parameter. |
|
133 * @param aAsyncEventHandler |
|
134 * @param aMediaType |
|
135 * @param aStreamId |
|
136 */ |
|
137 void Set( MAsyncEventHandler* aAsyncEventHandler, |
|
138 TUid aMediaType, |
|
139 TUint aStreamId ); |
|
140 |
|
141 /** |
|
142 * Set framerate for the user |
|
143 * @param aFrameRate |
|
144 */ |
|
145 void SetFrameRateL( TReal aFrameRate ); |
|
146 |
|
147 /** |
|
148 * Get preroll value for the user |
|
149 * @return preroll value |
|
150 */ |
|
151 TInt GetPreroll(); |
|
152 |
|
153 /** |
|
154 * Get actual preroll value for the user |
|
155 * @return preroll value |
|
156 */ |
|
157 TInt GetActualPreroll(); |
|
158 |
|
159 /** |
|
160 * User play |
|
161 */ |
|
162 void Play(); |
|
163 |
|
164 /** |
|
165 * User pause |
|
166 */ |
|
167 void Pause(); |
|
168 |
|
169 TBool IsQueueSizeDefined() const; |
|
170 |
|
171 TUint QueueSize() const; |
|
172 |
|
173 TMccPacketOverflowState PacketOverflowState() const; |
|
174 |
|
175 void SetPacketOverflow( TMccPacketOverflowState aState ); |
|
176 |
|
177 void AddTimeStamp( TInt64 aTimeStamp, TUint16 aSeq ); |
|
178 |
|
179 void Reset( TBool aFullReset ); |
|
180 |
|
181 void CalculateAverageTimeStampDifference(); |
|
182 |
|
183 TBool IsResetNeeded( TRtpRecvHeader& aHeaderInfo ); |
|
184 |
|
185 TBool IsResetNeeded() const; |
|
186 |
|
187 TBool IsModifyNeeded( TRtpRecvHeader& aHeaderInfo ); |
|
188 |
|
189 void SetAllowFrame( TBool aAllowFrame ); |
|
190 |
|
191 TBool AllowFrame() const; |
|
192 |
|
193 /** |
|
194 * Let user know whether there's other users |
|
195 * @param aMultipleMediaTypes |
|
196 */ |
|
197 void SetMultipleMediaTypesL( TBool aMultipleMediaTypes ); |
|
198 |
|
199 /** |
|
200 * Set codec info for the user |
|
201 * @param aCodecInfo |
|
202 */ |
|
203 void SetCodecInfoL( const TMccCodecInfo& aCodecInfo ); |
|
204 |
|
205 TMccCodecInfo& CodecInfo(); |
|
206 |
|
207 TInt GetPayloadSize(); |
|
208 |
|
209 public: // From MMccVideoJitterBufferObserver |
|
210 |
|
211 void ErrorOccured( TInt aError ); |
|
212 |
|
213 private: |
|
214 |
|
215 TInt NumTimeStamps() const; |
|
216 |
|
217 void RemoveFirstTimeStamp(); |
|
218 |
|
219 void RemoveAllTimeStamps(); |
|
220 |
|
221 TBool DoModify( TRtpRecvHeader& aHeaderInfo ); |
|
222 |
|
223 TInt SeqNumDifToLastSeqNum( TUint16 aSeq ); |
|
224 |
|
225 |
|
226 void DoModifyCheckInit( const TRtpRecvHeader& aHeaderInfo ); |
|
227 |
|
228 void DoModifyCheckMonitoring( const TRtpRecvHeader& aHeaderInfo ); |
|
229 |
|
230 void SetModifyingState( TMccTimeStampModifyMode aModifyMode ); |
|
231 |
|
232 TBool MonitoringModify(); |
|
233 |
|
234 TBool ModifyRequired(); |
|
235 |
|
236 TUint32 GetTimestampDifferenceToPrevious( TUint32 aCurrentTimestamp ); |
|
237 |
|
238 void UpdateFirstTimestamp( TUint32 aTimestamp ); |
|
239 |
|
240 TUint32 DifferenceThreshold( TInt aSeqNumDif ) const; |
|
241 |
|
242 void CheckDenyFramesMaxPeriod(); |
|
243 |
|
244 void DecideMonitoringContinuation( TMccTimeStampModifyMode aNextState ); |
|
245 |
|
246 TBool IsResetNeededNormalMode( TRtpRecvHeader& aHeaderInfo ); |
|
247 |
|
248 TBool IsResetNeededRealTimeMode( TRtpRecvHeader& aHeaderInfo ); |
|
249 |
|
250 TBool RealTimeUser(); |
|
251 |
|
252 void CheckErrorL( TInt aError ); |
|
253 |
|
254 TBool CodecSpecificDataHandling( const TDesC8& aPayloadData ); |
|
255 |
|
256 private: |
|
257 |
|
258 CMccVideoSinkUser( MAsyncEventHandler* aAsyncEventHandler, |
|
259 TUid aMediaType, |
|
260 TUint aStreamId, |
|
261 TReal aFrameRate, |
|
262 CXPSPacketSink& aPacketSink ); |
|
263 |
|
264 public: // Data |
|
265 |
|
266 MAsyncEventHandler* iAsyncEventHandler; |
|
267 TUid iMediaType; |
|
268 TUint iStreamId; |
|
269 TMccTimeStampEntry iTimeStamps[ KMccTimeStampArraySize ]; |
|
270 TBool iStartedOnce; |
|
271 TReal iFrameRate; |
|
272 TMccCodecInfo iCodecInfo; |
|
273 |
|
274 private: |
|
275 |
|
276 CXPSPacketSink& iPacketSink; |
|
277 |
|
278 TMccPacketOverflowState iPacketOverflowState; |
|
279 TInt iNumTimeStamps; |
|
280 TUint32 iAverageTimeStampDifference; |
|
281 TBool iResetNeeded; |
|
282 TMccTimeStampModifyMode iModifyMode; |
|
283 |
|
284 TTime iFirstModifyCheck; |
|
285 TUint32 iFirstModifyCheckTimestamp; |
|
286 TUint32 iFirstTimestamp; |
|
287 |
|
288 TBool iAllowFrame; |
|
289 TTime iDenyFramesStarted; |
|
290 |
|
291 TBool iMultipleMediaTypes; |
|
292 |
|
293 TUint32 iPreviousPacketOriginalTimeStamp; |
|
294 TUint32 iPreviousPacketModifiedTimeStamp; |
|
295 TTime iPreviousPacketTime; |
|
296 |
|
297 TUint32 iCurrentMonitoringPeriod; |
|
298 |
|
299 TReal iTimestampIncreaseFactorDown; |
|
300 TReal iTimestampIncreaseFactorUp; |
|
301 |
|
302 CMccVideoJitterBuffer* iJitterBuf; |
|
303 |
|
304 TInt iPayloadSize; |
|
305 |
|
306 private: |
|
307 #ifdef TEST_EUNIT |
|
308 friend class UT_CMccVideoSinkImpl; |
|
309 friend class UT_CMccVideoSinkUser; |
|
310 #endif |
|
311 }; |
|
312 |
|
313 #endif // MCCVIDEOSINKUSER_H |
|
314 |