webrtc/media/engine/null_webrtc_video_engine.h
Johannes Kron 3e98368ec5 Reland "Distinguish between send and receive codecs"
This reverts commit 8e8b36a94a.

Reason for revert: The CL has been improved with the following changes,
  - Fixed negotiation of send/receive only clients.
  - Handles the implicit assumption that any H264 decoder also can
    decode H264 constraint baseline.

Original change's description:
> Distinguish between send and receive codecs
>
> Even though send and receive codecs may be the same, they might have
> different support in HW. Distinguish between send and receive codecs
> to be able to keep track of which codecs have HW support.
>
> Bug: chromium:1029737
> Change-Id: Id119560becadfe0aaf861c892a6485f1c2eb378d
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/165763
> Commit-Queue: Johannes Kron <kron@webrtc.org>
> Reviewed-by: Steve Anton <steveanton@webrtc.org>
> Cr-Commit-Position: refs/heads/master@{#30284}

Change-Id: I834ed48ee78d04922c73e2836165e476925e1cc5
Bug: chromium:1029737
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/168605
Commit-Queue: Johannes Kron <kron@webrtc.org>
Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Reviewed-by: Johannes Kron <kron@webrtc.org>
Reviewed-by: Henrik Boström <hbos@webrtc.org>
Reviewed-by: Sergey Silkin <ssilkin@webrtc.org>
Reviewed-by: Steve Anton <steveanton@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#30932}
2020-03-29 21:03:27 +00:00

59 lines
1.5 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() 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(
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_