chromium/media/cast/encoding/external_video_encoder.h

// Copyright 2014 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_CAST_ENCODING_EXTERNAL_VIDEO_ENCODER_H_
#define MEDIA_CAST_ENCODING_EXTERNAL_VIDEO_ENCODER_H_

#include <stddef.h>
#include <stdint.h>

#include <memory>
#include <string_view>

#include "base/memory/raw_ref.h"
#include "base/memory/weak_ptr.h"
#include "base/task/single_thread_task_runner.h"
#include "media/cast/cast_environment.h"
#include "media/cast/encoding/size_adaptable_video_encoder_base.h"
#include "media/cast/encoding/video_encoder.h"
#include "media/video/video_encode_accelerator.h"
#include "ui/gfx/geometry/size.h"

namespace media {

class VideoEncoderMetricsProvider;

namespace cast {

// Cast MAIN thread proxy to the internal media::VideoEncodeAccelerator
// implementation running on a separate thread.  Encodes media::VideoFrames and
// emits media::cast::EncodedFrames.
class ExternalVideoEncoder final : public VideoEncoder { … };

// An implementation of SizeAdaptableVideoEncoderBase to proxy for
// ExternalVideoEncoder instances.
class SizeAdaptableExternalVideoEncoder final
    : public SizeAdaptableVideoEncoderBase { … };

// A utility class for examining the sequence of frames sent to an external
// encoder, and returning an estimate of the what the software VP8 encoder would
// have used for a quantizer value when encoding each frame.  The quantizer
// value is related to the complexity of the content of the frame.
class QuantizerEstimator { … };

}  // namespace cast
}  // namespace media

#endif  // MEDIA_CAST_ENCODING_EXTERNAL_VIDEO_ENCODER_H_