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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_RENDERER_PEPPER_VIDEO_ENCODER_SHIM_H_
#define CONTENT_RENDERER_PEPPER_VIDEO_ENCODER_SHIM_H_
#include <stddef.h>
#include <stdint.h>
#include <memory>
#include <vector>
#include "base/macros.h"
#include "base/memory/weak_ptr.h"
#include "media/video/video_encode_accelerator.h"
namespace base {
class SingleThreadTaskRunner;
}
namespace gfx {
class Size;
}
namespace content {
class PepperVideoEncoderHost;
// This class is a shim to wrap a media::cast::SoftwareVideoEncoder so that it
// can be used by PepperVideoEncoderHost in place of a
// media::VideoEncodeAccelerator. This class should be constructed, used, and
// destructed on the main (render) thread.
class VideoEncoderShim : public media::VideoEncodeAccelerator {
public:
explicit VideoEncoderShim(PepperVideoEncoderHost* host);
~VideoEncoderShim() override;
// media::VideoEncodeAccelerator implementation.
media::VideoEncodeAccelerator::SupportedProfiles GetSupportedProfiles()
override;
bool Initialize(media::VideoPixelFormat input_format,
const gfx::Size& input_visible_size,
media::VideoCodecProfile output_profile,
uint32_t initial_bitrate,
media::VideoEncodeAccelerator::Client* client) override;
void Encode(const scoped_refptr<media::VideoFrame>& frame,
bool force_keyframe) override;
void UseOutputBitstreamBuffer(const media::BitstreamBuffer& buffer) override;
void RequestEncodingParametersChange(uint32_t bitrate,
uint32_t framerate) override;
void Destroy() override;
private:
class EncoderImpl;
void OnRequireBitstreamBuffers(unsigned int input_count,
const gfx::Size& input_coded_size,
size_t output_buffer_size);
void OnBitstreamBufferReady(scoped_refptr<media::VideoFrame> frame,
int32_t bitstream_buffer_id,
size_t payload_size,
bool key_frame);
void OnNotifyError(media::VideoEncodeAccelerator::Error error);
std::unique_ptr<EncoderImpl> encoder_impl_;
PepperVideoEncoderHost* host_;
// Task doing the encoding.
scoped_refptr<base::SingleThreadTaskRunner> media_task_runner_;
base::WeakPtrFactory<VideoEncoderShim> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(VideoEncoderShim);
};
} // namespace content
#endif // CONTENT_RENDERER_PEPPER_VIDEO_ENCODER_SHIM_H_
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