chromium/media/video/video_encoder_fallback.h

// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef MEDIA_VIDEO_VIDEO_ENCODER_FALLBACK_H_
#define MEDIA_VIDEO_VIDEO_ENCODER_FALLBACK_H_

#include <memory>
#include <vector>

#include "base/memory/weak_ptr.h"
#include "media/base/media_export.h"
#include "media/base/video_encoder.h"

namespace media {

// A proxy video encoder that delegates all work to the main encoder until it
// fails. If the main encoder fails during initialization or encoding,
// VideoEncoderFallback creates a fallback encoder (by calling
// create_fallback_cb()) and starts delegating all the work to it.
//
// It is used for switching from accelerated platform encoder to softare encoder
// which are more reliable but less efficient.
class MEDIA_EXPORT VideoEncoderFallback : public VideoEncoder { … };

}  // namespace media

#endif  // MEDIA_VIDEO_VIDEO_ENCODER_FALLBACK_H_