1 /*
2  *  Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
3  *
4  *  Use of this source code is governed by a BSD-style license
5  *  that can be found in the LICENSE file in the root of the source
6  *  tree. An additional intellectual property rights grant can be found
7  *  in the file PATENTS.  All contributing project authors may
8  *  be found in the AUTHORS file in the root of the source tree.
9  */
10 
11 // This file contains codec dependent definitions that are needed in
12 // order to compile the WebRTC codebase, even if this codec is not used.
13 
14 #ifndef MODULES_VIDEO_CODING_CODECS_VP8_INCLUDE_VP8_GLOBALS_H_
15 #define MODULES_VIDEO_CODING_CODECS_VP8_INCLUDE_VP8_GLOBALS_H_
16 
17 #include "modules/video_coding/codecs/interface/common_constants.h"
18 
19 namespace webrtc {
20 
21 struct RTPVideoHeaderVP8 {
InitRTPVideoHeaderVP8RTPVideoHeaderVP822   void InitRTPVideoHeaderVP8() {
23     nonReference = false;
24     pictureId = kNoPictureId;
25     tl0PicIdx = kNoTl0PicIdx;
26     temporalIdx = kNoTemporalIdx;
27     layerSync = false;
28     keyIdx = kNoKeyIdx;
29     partitionId = 0;
30     beginningOfPartition = false;
31   }
32 
33   bool nonReference;          // Frame is discardable.
34   int16_t pictureId;          // Picture ID index, 15 bits;
35                               // kNoPictureId if PictureID does not exist.
36   int16_t tl0PicIdx;          // TL0PIC_IDX, 8 bits;
37                               // kNoTl0PicIdx means no value provided.
38   uint8_t temporalIdx;        // Temporal layer index, or kNoTemporalIdx.
39   bool layerSync;             // This frame is a layer sync frame.
40                               // Disabled if temporalIdx == kNoTemporalIdx.
41   int keyIdx;                 // 5 bits; kNoKeyIdx means not used.
42   int partitionId;            // VP8 partition ID
43   bool beginningOfPartition;  // True if this packet is the first
44                               // in a VP8 partition. Otherwise false
45 };
46 
47 }  // namespace webrtc
48 
49 #endif  // MODULES_VIDEO_CODING_CODECS_VP8_INCLUDE_VP8_GLOBALS_H_
50