Line data    Source code

       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             : #include "webrtc/modules/video_coding/utility/default_video_bitrate_allocator.h"
      12             : 
      13             : #include <stdint.h>
      14             : 
      15             : namespace webrtc {
      16             : 
      17           0 : DefaultVideoBitrateAllocator::DefaultVideoBitrateAllocator(
      18           0 :     const VideoCodec& codec)
      19           0 :     : codec_(codec) {}
      20             : 
      21           0 : DefaultVideoBitrateAllocator::~DefaultVideoBitrateAllocator() {}
      22             : 
      23           0 : BitrateAllocation DefaultVideoBitrateAllocator::GetAllocation(
      24             :     uint32_t total_bitrate_bps,
      25             :     uint32_t framerate) {
      26           0 :   BitrateAllocation allocation;
      27           0 :   if (total_bitrate_bps == 0)
      28           0 :     return allocation;
      29             : 
      30           0 :   if (total_bitrate_bps < codec_.minBitrate * 1000) {
      31           0 :     allocation.SetBitrate(0, 0, codec_.minBitrate * 1000);
      32           0 :   } else if (codec_.maxBitrate > 0 &&
      33           0 :              total_bitrate_bps > codec_.maxBitrate * 1000) {
      34           0 :     allocation.SetBitrate(0, 0, codec_.maxBitrate * 1000);
      35             :   } else {
      36           0 :     allocation.SetBitrate(0, 0, total_bitrate_bps);
      37             :   }
      38             : 
      39           0 :   return allocation;
      40             : }
      41             : 
      42           0 : uint32_t DefaultVideoBitrateAllocator::GetPreferredBitrateBps(
      43             :     uint32_t framerate) {
      44           0 :   return GetAllocation(codec_.maxBitrate * 1000, framerate).get_sum_bps();
      45             : }
      46             : 
      47             : }  // namespace webrtc