Files
platform-external-webrtc/media/engine/multiplexcodecfactory.h
Tarek Hefny 77c8e65b88 Update multiplex encoder to support having augmenting data attached to the video
Multiplex encoder is now supporting attaching user-defined data to the video
frame. This data will be sent with the video frame and thus is guaranteed to
be synchronized. This is useful in cases where the data and video frame need
to by synchronized such as sending information about 3D objects or camera
tracking information with the video stream

Multiplex Encoder with data is implemented in a modular way. A new
VideoFrameBuffer type is created with the encoder. AugmentedVideoFrameBuffer
holds the video frame and the data. MultiplexVideoEncoder encodes both
the frame and data.

Change-Id: I23263f70d111f6f1783c070edec70bd11ebb9868
Bug: webrtc:9632
Reviewed-on: https://webrtc-review.googlesource.com/92642
Commit-Queue: Tarek Hefny <tarekh@google.com>
Reviewed-by: Niklas Enbom <niklas.enbom@webrtc.org>
Reviewed-by: Emircan Uysaler <emircan@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#24297}
2018-08-15 21:54:17 +00:00

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/*
* Copyright (c) 2017 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_MULTIPLEXCODECFACTORY_H_
#define MEDIA_ENGINE_MULTIPLEXCODECFACTORY_H_
#include <memory>
#include <vector>
#include "api/video_codecs/video_decoder_factory.h"
#include "api/video_codecs/video_encoder_factory.h"
namespace webrtc {
class MultiplexEncoderFactory : public VideoEncoderFactory {
public:
// supports_augmenting_data defines if the encoder would support augmenting
// data in that case the encoder expects video frame buffer of type
// AugmentedVideoFrameBuffer the encoder would encode the attached buffer and
// data together if the flag is not set any frame buffer can be passed in
MultiplexEncoderFactory(std::unique_ptr<VideoEncoderFactory> factory,
bool supports_augmenting_data = false);
std::vector<SdpVideoFormat> GetSupportedFormats() const override;
CodecInfo QueryVideoEncoder(const SdpVideoFormat& format) const override;
std::unique_ptr<VideoEncoder> CreateVideoEncoder(
const SdpVideoFormat& format) override;
private:
std::unique_ptr<VideoEncoderFactory> factory_;
const bool supports_augmenting_data_;
};
class MultiplexDecoderFactory : public VideoDecoderFactory {
public:
// supports_augmenting_data defines if the decoder would support augmenting
// data in that case the decoder expects the encoded video frame to contain
// augmenting_data it is expected that the sender is using MultiplexEncoder
// with supports_augmenting_data set
MultiplexDecoderFactory(std::unique_ptr<VideoDecoderFactory> factory,
bool supports_augmenting_data = false);
std::vector<SdpVideoFormat> GetSupportedFormats() const override;
std::unique_ptr<VideoDecoder> CreateVideoDecoder(
const SdpVideoFormat& format) override;
private:
std::unique_ptr<VideoDecoderFactory> factory_;
const bool supports_augmenting_data_;
};
} // namespace webrtc
#endif // MEDIA_ENGINE_MULTIPLEXCODECFACTORY_H_