df4883dbf0
This is a reland of 2c8c8e26fc58a0f2789b7a5cd2646a8319c14d3e Original change's description: > Update internal encoder factory to new interface > > TBR=stefan@webrtc.org > > Bug: webrtc:7925 > Change-Id: I0bb97acdf0d58a9ce531ecdd672bb17ef96360df > Reviewed-on: https://webrtc-review.googlesource.com/21162 > Commit-Queue: Magnus Jedvert <magjed@webrtc.org> > Reviewed-by: Anders Carlsson <andersc@webrtc.org> > Reviewed-by: Rasmus Brandt <brandtr@webrtc.org> > Cr-Commit-Position: refs/heads/master@{#20717} TBR=andersc@webrtc.org,brandt@webrtc.org,stefan@webrtc.org Bug: webrtc:7925 Change-Id: I0d269b3edb029e372a36c3b461a577bca2b6d0cb Reviewed-on: https://webrtc-review.googlesource.com/24000 Reviewed-by: Magnus Jedvert <magjed@webrtc.org> Commit-Queue: Magnus Jedvert <magjed@webrtc.org> Cr-Commit-Position: refs/heads/master@{#20747}
120 lines
4.3 KiB
C++
120 lines
4.3 KiB
C++
/*
|
|
* Copyright (c) 2014 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_SIMULCAST_ENCODER_ADAPTER_H_
|
|
#define MEDIA_ENGINE_SIMULCAST_ENCODER_ADAPTER_H_
|
|
|
|
#include <memory>
|
|
#include <stack>
|
|
#include <string>
|
|
#include <utility>
|
|
#include <vector>
|
|
|
|
#include "media/engine/webrtcvideoencoderfactory.h"
|
|
#include "modules/video_coding/codecs/vp8/include/vp8.h"
|
|
#include "rtc_base/atomicops.h"
|
|
#include "rtc_base/sequenced_task_checker.h"
|
|
|
|
namespace webrtc {
|
|
|
|
class SimulcastRateAllocator;
|
|
class VideoEncoderFactory;
|
|
|
|
// SimulcastEncoderAdapter implements simulcast support by creating multiple
|
|
// webrtc::VideoEncoder instances with the given VideoEncoderFactory.
|
|
// The object is created and destroyed on the worker thread, but all public
|
|
// interfaces should be called from the encoder task queue.
|
|
class SimulcastEncoderAdapter : public VP8Encoder {
|
|
public:
|
|
explicit SimulcastEncoderAdapter(VideoEncoderFactory* factory);
|
|
// Deprecated - use webrtc::VideoEncoderFactory instead.
|
|
explicit SimulcastEncoderAdapter(cricket::WebRtcVideoEncoderFactory* factory);
|
|
virtual ~SimulcastEncoderAdapter();
|
|
|
|
// Implements VideoEncoder.
|
|
int Release() override;
|
|
int InitEncode(const VideoCodec* inst,
|
|
int number_of_cores,
|
|
size_t max_payload_size) override;
|
|
int Encode(const VideoFrame& input_image,
|
|
const CodecSpecificInfo* codec_specific_info,
|
|
const std::vector<FrameType>* frame_types) override;
|
|
int RegisterEncodeCompleteCallback(EncodedImageCallback* callback) override;
|
|
int SetChannelParameters(uint32_t packet_loss, int64_t rtt) override;
|
|
int SetRateAllocation(const BitrateAllocation& bitrate,
|
|
uint32_t new_framerate) override;
|
|
|
|
// Eventual handler for the contained encoders' EncodedImageCallbacks, but
|
|
// called from an internal helper that also knows the correct stream
|
|
// index.
|
|
EncodedImageCallback::Result OnEncodedImage(
|
|
size_t stream_idx,
|
|
const EncodedImage& encoded_image,
|
|
const CodecSpecificInfo* codec_specific_info,
|
|
const RTPFragmentationHeader* fragmentation);
|
|
|
|
VideoEncoder::ScalingSettings GetScalingSettings() const override;
|
|
|
|
bool SupportsNativeHandle() const override;
|
|
const char* ImplementationName() const override;
|
|
|
|
private:
|
|
struct StreamInfo {
|
|
StreamInfo(std::unique_ptr<VideoEncoder> encoder,
|
|
std::unique_ptr<EncodedImageCallback> callback,
|
|
uint16_t width,
|
|
uint16_t height,
|
|
bool send_stream)
|
|
: encoder(std::move(encoder)),
|
|
callback(std::move(callback)),
|
|
width(width),
|
|
height(height),
|
|
key_frame_request(false),
|
|
send_stream(send_stream) {}
|
|
std::unique_ptr<VideoEncoder> encoder;
|
|
std::unique_ptr<EncodedImageCallback> callback;
|
|
uint16_t width;
|
|
uint16_t height;
|
|
bool key_frame_request;
|
|
bool send_stream;
|
|
};
|
|
|
|
// Populate the codec settings for each simulcast stream.
|
|
static void PopulateStreamCodec(const webrtc::VideoCodec& inst,
|
|
int stream_index,
|
|
uint32_t start_bitrate_kbps,
|
|
bool highest_resolution_stream,
|
|
webrtc::VideoCodec* stream_codec);
|
|
|
|
bool Initialized() const;
|
|
|
|
void DestroyStoredEncoders();
|
|
|
|
volatile int inited_; // Accessed atomically.
|
|
VideoEncoderFactory* const factory_;
|
|
cricket::WebRtcVideoEncoderFactory* const cricket_factory_;
|
|
VideoCodec codec_;
|
|
std::vector<StreamInfo> streaminfos_;
|
|
EncodedImageCallback* encoded_complete_callback_;
|
|
std::string implementation_name_;
|
|
|
|
// Used for checking the single-threaded access of the encoder interface.
|
|
rtc::SequencedTaskChecker encoder_queue_;
|
|
|
|
// Store encoders in between calls to Release and InitEncode, so they don't
|
|
// have to be recreated. Remaining encoders are destroyed by the destructor.
|
|
std::stack<std::unique_ptr<VideoEncoder>> stored_encoders_;
|
|
};
|
|
|
|
} // namespace webrtc
|
|
|
|
#endif // MEDIA_ENGINE_SIMULCAST_ENCODER_ADAPTER_H_
|