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      1 /*
      2  *  Copyright (c) 2011 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 #ifndef WEBRTC_MODULES_VIDEO_CODING_SOURCE_INTERNAL_DEFINES_H_
     12 #define WEBRTC_MODULES_VIDEO_CODING_SOURCE_INTERNAL_DEFINES_H_
     13 
     14 #include "webrtc/typedefs.h"
     15 
     16 namespace webrtc
     17 {
     18 
     19 #define MASK_32_BITS(x) (0xFFFFFFFF & (x))
     20 
     21 inline uint32_t MaskWord64ToUWord32(int64_t w64)
     22 {
     23     return static_cast<uint32_t>(MASK_32_BITS(w64));
     24 }
     25 
     26 #define VCM_MAX(a, b) (((a) > (b)) ? (a) : (b))
     27 #define VCM_MIN(a, b) (((a) < (b)) ? (a) : (b))
     28 
     29 #define VCM_DEFAULT_CODEC_WIDTH 352
     30 #define VCM_DEFAULT_CODEC_HEIGHT 288
     31 #define VCM_DEFAULT_FRAME_RATE 30
     32 #define VCM_MIN_BITRATE 30
     33 #define VCM_FLUSH_INDICATOR 4
     34 
     35 // Helper macros for creating the static codec list
     36 #define VCM_NO_CODEC_IDX -1
     37 #ifdef VIDEOCODEC_VP8
     38   #define VCM_VP8_IDX (VCM_NO_CODEC_IDX + 1)
     39 #else
     40   #define VCM_VP8_IDX VCM_NO_CODEC_IDX
     41 #endif
     42 #ifdef VIDEOCODEC_H264
     43   #define VCM_H264_IDX (VCM_VP8_IDX + 1)
     44 #else
     45   #define VCM_H264_IDX VCM_VP8_IDX
     46 #endif
     47 #ifdef VIDEOCODEC_I420
     48   #define VCM_I420_IDX (VCM_H264_IDX + 1)
     49 #else
     50   #define VCM_I420_IDX VCM_H264_IDX
     51 #endif
     52 #define VCM_NUM_VIDEO_CODECS_AVAILABLE (VCM_I420_IDX + 1)
     53 
     54 #define VCM_NO_RECEIVER_ID 0
     55 
     56 inline int32_t VCMId(const int32_t vcmId, const int32_t receiverId = 0)
     57 {
     58     return static_cast<int32_t>((vcmId << 16) + receiverId);
     59 }
     60 
     61 }  // namespace webrtc
     62 
     63 #endif // WEBRTC_MODULES_VIDEO_CODING_SOURCE_INTERNAL_DEFINES_H_
     64