58 lines
2.0 KiB
C
58 lines
2.0 KiB
C
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/*
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* Copyright (c) 2014 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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#ifndef WEBRTC_MEDIA_ENGINE_SIMULCAST_H_
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#define WEBRTC_MEDIA_ENGINE_SIMULCAST_H_
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#include <vector>
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#include "webrtc/base/basictypes.h"
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#include "webrtc/config.h"
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namespace cricket {
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struct StreamParams;
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// Config for use with screen cast when temporal layers are enabled.
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struct ScreenshareLayerConfig {
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public:
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ScreenshareLayerConfig(int tl0_bitrate, int tl1_bitrate);
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// Bitrates, for temporal layers 0 and 1.
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int tl0_bitrate_kbps;
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int tl1_bitrate_kbps;
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static ScreenshareLayerConfig GetDefault();
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// Parse bitrate from group name on format "(tl0_bitrate)-(tl1_bitrate)",
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// eg. "100-1000" for the default rates.
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static bool FromFieldTrialGroup(const std::string& group,
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ScreenshareLayerConfig* config);
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};
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// TODO(pthatcher): Write unit tests just for these functions,
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// independent of WebrtcVideoEngine.
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int GetTotalMaxBitrateBps(const std::vector<webrtc::VideoStream>& streams);
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// Get the ssrcs of the SIM group from the stream params.
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void GetSimulcastSsrcs(const StreamParams& sp, std::vector<uint32_t>* ssrcs);
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// Get simulcast settings.
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std::vector<webrtc::VideoStream> GetSimulcastConfig(size_t max_streams,
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int width,
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int height,
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int max_bitrate_bps,
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int max_qp,
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int max_framerate);
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} // namespace cricket
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#endif // WEBRTC_MEDIA_ENGINE_SIMULCAST_H_
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