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566124a6df
Since the webrtc_common build target does not have visibility set, we cannot easily use BitrateAllocation in other parts of Chromium. This is currently blocking parts of chromium:794608, and I know of other usage outside webrtc already, so moving it to api/ should be warranted. Also, since there's some naming confusion and this class is video specific rename it VideoBitrateAllocation. This also fits with the standard interface for producing these: VideoBitrateAllocator. Bug: chromium:794608 Change-Id: I4c0fae40f9365e860c605a76a4f67ecc9b9cf9fe Reviewed-on: https://webrtc-review.googlesource.com/70783 Reviewed-by: Karl Wiberg <kwiberg@webrtc.org> Reviewed-by: Niels Moller <nisse@webrtc.org> Commit-Queue: Erik Språng <sprang@webrtc.org> Cr-Commit-Position: refs/heads/master@{#22986}
46 lines
1.5 KiB
C++
46 lines
1.5 KiB
C++
/*
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* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "modules/video_coding/utility/default_video_bitrate_allocator.h"
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#include <stdint.h>
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namespace webrtc {
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DefaultVideoBitrateAllocator::DefaultVideoBitrateAllocator(
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const VideoCodec& codec)
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: codec_(codec) {}
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DefaultVideoBitrateAllocator::~DefaultVideoBitrateAllocator() {}
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VideoBitrateAllocation DefaultVideoBitrateAllocator::GetAllocation(
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uint32_t total_bitrate_bps,
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uint32_t framerate) {
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VideoBitrateAllocation allocation;
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if (total_bitrate_bps == 0 || !codec_.active)
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return allocation;
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if (total_bitrate_bps < codec_.minBitrate * 1000) {
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allocation.SetBitrate(0, 0, codec_.minBitrate * 1000);
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} else if (codec_.maxBitrate > 0 &&
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total_bitrate_bps > codec_.maxBitrate * 1000) {
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allocation.SetBitrate(0, 0, codec_.maxBitrate * 1000);
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} else {
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allocation.SetBitrate(0, 0, total_bitrate_bps);
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}
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return allocation;
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}
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uint32_t DefaultVideoBitrateAllocator::GetPreferredBitrateBps(
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uint32_t framerate) {
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return GetAllocation(codec_.maxBitrate * 1000, framerate).get_sum_bps();
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}
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} // namespace webrtc
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