webrtc_m130/media/engine/null_webrtc_video_engine.h
Harald Alvestrand 16579cc81d Change MediaChannel to have a Role parameter
This allows MediaChannel to know whether it's being used
for sending, receiving, or both. This is a preparatory CL
for landing the split of MediaChannel usage into sending and
receiving objects.

Bug: webrtc:13931
Change-Id: If518c8b53d5256771200a42e1b5f2b3321d26d8c
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/292860
Reviewed-by: Florent Castelli <orphis@webrtc.org>
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#39283}
2023-02-09 14:29:08 +00:00

68 lines
1.8 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.
*/
#ifndef MEDIA_ENGINE_NULL_WEBRTC_VIDEO_ENGINE_H_
#define MEDIA_ENGINE_NULL_WEBRTC_VIDEO_ENGINE_H_
#include <vector>
#include "media/base/media_channel.h"
#include "media/base/media_engine.h"
namespace webrtc {
class Call;
} // namespace webrtc
namespace cricket {
class VideoMediaChannel;
// Video engine implementation that does nothing and can be used in
// CompositeMediaEngine.
class NullWebRtcVideoEngine : public VideoEngineInterface {
public:
std::vector<VideoCodec> send_codecs(bool) const override {
return std::vector<VideoCodec>();
}
std::vector<VideoCodec> recv_codecs(bool) const override {
return std::vector<VideoCodec>();
}
std::vector<VideoCodec> send_codecs() const override {
return std::vector<VideoCodec>();
}
std::vector<VideoCodec> recv_codecs() const override {
return std::vector<VideoCodec>();
}
std::vector<webrtc::RtpHeaderExtensionCapability> GetRtpHeaderExtensions()
const override {
return {};
}
VideoMediaChannel* CreateMediaChannel(
MediaChannel::Role role,
webrtc::Call* call,
const MediaConfig& config,
const VideoOptions& options,
const webrtc::CryptoOptions& crypto_options,
webrtc::VideoBitrateAllocatorFactory* video_bitrate_allocator_factory)
override {
return nullptr;
}
};
} // namespace cricket
#endif // MEDIA_ENGINE_NULL_WEBRTC_VIDEO_ENGINE_H_