webrtc/modules/video_coding/utility/default_video_bitrate_allocator.cc
Lu Liu 0f17f9ce28 Revert "Enables/disables simulcast streams by allocating a bitrate of 0 to the spatial layer."
This reverts commit 18c4261339.

Reason for revert: Broke internal tests

Original change's description:
> Enables/disables simulcast streams by allocating a bitrate of 0 to the spatial layer.
> 
> Creates VideoStreams & VideoCodec.simulcastStreams with an active field, and then allocates 0 bitrate to simulcast streams that are inactive. This turns off the encoder for specific simulcast streams.
> 
> Bug: webrtc:8653
> Change-Id: Id93b03dcd8d1191a7d3300bd77882c8af96ee469
> Reviewed-on: https://webrtc-review.googlesource.com/37740
> Reviewed-by: Stefan Holmer <stefan@webrtc.org>
> Reviewed-by: Taylor Brandstetter <deadbeef@webrtc.org>
> Reviewed-by: Erik Språng <sprang@webrtc.org>
> Commit-Queue: Seth Hampson <shampson@webrtc.org>
> Cr-Commit-Position: refs/heads/master@{#21646}

TBR=deadbeef@webrtc.org,sprang@webrtc.org,stefan@webrtc.org,shampson@webrtc.org

Change-Id: I0aeb743cbd2e8d564aa732c937587c25a4c49b09
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: webrtc:8653
Reviewed-on: https://webrtc-review.googlesource.com/39883
Reviewed-by: Lu Liu <lliuu@webrtc.org>
Commit-Queue: Lu Liu <lliuu@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#21647}
2018-01-17 00:28:27 +00:00

46 lines
1.4 KiB
C++

/*
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "modules/video_coding/utility/default_video_bitrate_allocator.h"
#include <stdint.h>
namespace webrtc {
DefaultVideoBitrateAllocator::DefaultVideoBitrateAllocator(
const VideoCodec& codec)
: codec_(codec) {}
DefaultVideoBitrateAllocator::~DefaultVideoBitrateAllocator() {}
BitrateAllocation DefaultVideoBitrateAllocator::GetAllocation(
uint32_t total_bitrate_bps,
uint32_t framerate) {
BitrateAllocation allocation;
if (total_bitrate_bps == 0)
return allocation;
if (total_bitrate_bps < codec_.minBitrate * 1000) {
allocation.SetBitrate(0, 0, codec_.minBitrate * 1000);
} else if (codec_.maxBitrate > 0 &&
total_bitrate_bps > codec_.maxBitrate * 1000) {
allocation.SetBitrate(0, 0, codec_.maxBitrate * 1000);
} else {
allocation.SetBitrate(0, 0, total_bitrate_bps);
}
return allocation;
}
uint32_t DefaultVideoBitrateAllocator::GetPreferredBitrateBps(
uint32_t framerate) {
return GetAllocation(codec_.maxBitrate * 1000, framerate).get_sum_bps();
}
} // namespace webrtc