blob: 2ac951a0fdbaf2c253a120672553e7b7c04e59c4 [file] [log] [blame]
// Copyright 2017 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 THIRD_PARTY_BLINK_RENDERER_MODULES_MEDIARECORDER_H264_ENCODER_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_MEDIARECORDER_H264_ENCODER_H_
#include "base/single_thread_task_runner.h"
#include "third_party/blink/renderer/modules/mediarecorder/buildflags.h"
#if !BUILDFLAG(RTC_USE_H264)
#error RTC_USE_H264 should be defined.
#endif // #if BUILDFLAG(RTC_USE_H264)
#include "base/time/time.h"
#include "third_party/blink/renderer/modules/mediarecorder/video_track_recorder.h"
#include "third_party/openh264/src/codec/api/svc/codec_api.h"
namespace blink {
// Class encapsulating all openh264 interactions for H264 encoding.
class H264Encoder final : public VideoTrackRecorder::Encoder {
public:
struct ISVCEncoderDeleter {
void operator()(ISVCEncoder* codec);
};
typedef std::unique_ptr<ISVCEncoder, ISVCEncoderDeleter> ScopedISVCEncoderPtr;
static void ShutdownEncoder(std::unique_ptr<Thread> encoding_thread,
ScopedISVCEncoderPtr encoder);
H264Encoder(
const VideoTrackRecorder::OnEncodedVideoCB& on_encoded_video_callback,
int32_t bits_per_second,
scoped_refptr<base::SingleThreadTaskRunner> task_runner);
private:
// VideoTrackRecorder::Encoder implementation.
~H264Encoder() override;
void EncodeOnEncodingTaskRunner(scoped_refptr<media::VideoFrame> frame,
base::TimeTicks capture_timestamp) override;
void ConfigureEncoderOnEncodingTaskRunner(const gfx::Size& size);
// |openh264_encoder_| is a special scoped pointer to guarantee proper
// destruction, also when reconfiguring due to parameters change. Only used on
// VideoTrackRecorder::Encoder::encoding_thread_.
gfx::Size configured_size_;
ScopedISVCEncoderPtr openh264_encoder_;
// The |VideoFrame::timestamp()| of the first received frame. Only used on
// VideoTrackRecorder::Encoder::encoding_thread_.
base::TimeTicks first_frame_timestamp_;
DISALLOW_COPY_AND_ASSIGN(H264Encoder);
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_MEDIARECORDER_H264_ENCODER_H_