webrtc/api/video_codecs/video_encoder_interface.h
philipel b85b4c0f29 Reland "New video encoder API."
This reverts commit 56e6309749.

Reason for revert: Preparing for reland

Original change's description:
> Revert "New video encoder API."
>
> This reverts commit 42f12d5183.
>
> Reason for revert: tests fails downstream
>
> Original change's description:
> > New video encoder API.
> >
> > Also initial implementation wrapping the libaom AV1 encoder.
> >
> > Note that for now this is intended for prototype purposes.
> >
> > Bug: none
> > Change-Id: Iac42ca4aecb6a204601c9f00bfb300e3eda3c4f4
> > Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/306181
> > Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
> > Commit-Queue: Philip Eliasson <philipel@webrtc.org>
> > Reviewed-by: Erik Språng <sprang@webrtc.org>
> > Cr-Commit-Position: refs/heads/main@{#42108}
>
> Bug: none
> Change-Id: I927260353afb91df6c7650364baee4f13a098efd
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/347883
> Commit-Queue: Philip Eliasson <philipel@webrtc.org>
> Bot-Commit: rubber-stamper@appspot.gserviceaccount.com <rubber-stamper@appspot.gserviceaccount.com>
> Reviewed-by: Philip Eliasson <philipel@webrtc.org>
> Owners-Override: Philip Eliasson <philipel@webrtc.org>
> Auto-Submit: Danil Chapovalov <danilchap@webrtc.org>
> Cr-Commit-Position: refs/heads/main@{#42111}

Bug: none
Change-Id: Ib72ef5359ead697d27301e2ca2408e8b27165931
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/349001
Commit-Queue: Philip Eliasson <philipel@webrtc.org>
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42172}
2024-04-25 08:19:16 +00:00

89 lines
2.7 KiB
C++

/*
* Copyright (c) 2023 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 API_VIDEO_CODECS_VIDEO_ENCODER_INTERFACE_H_
#define API_VIDEO_CODECS_VIDEO_ENCODER_INTERFACE_H_
#include <map>
#include <memory>
// #include <unordered_set>
#include <string>
#include <utility>
#include <vector>
#include "absl/functional/any_invocable.h"
#include "absl/types/optional.h"
#include "absl/types/variant.h"
#include "api/units/data_rate.h"
#include "api/units/time_delta.h"
#include "api/units/timestamp.h"
#include "api/video/encoded_image.h"
#include "api/video/resolution.h"
#include "api/video/video_frame.h"
#include "api/video_codecs/video_codec.h"
#include "api/video_codecs/video_encoding_general.h"
#include "rtc_base/numerics/rational.h"
namespace webrtc {
// NOTE: This class is still under development and may change without notice.
class VideoEncoderInterface {
public:
virtual ~VideoEncoderInterface() = default;
enum class FrameType { kKeyframe, kStartFrame, kDeltaFrame };
struct TemporalUnitSettings {
VideoCodecMode content_hint = VideoCodecMode::kRealtimeVideo;
Timestamp presentation_timestamp;
int effort_level = 0;
};
struct FrameEncodeSettings {
struct Cbr {
TimeDelta duration;
DataRate target_bitrate;
};
struct Cqp {
int target_qp;
};
absl::variant<Cqp, Cbr> rate_options;
FrameType frame_type = FrameType::kDeltaFrame;
int temporal_id = 0;
int spatial_id = 0;
Resolution resolution;
std::vector<int> reference_buffers;
absl::optional<int> update_buffer;
};
// Results from calling Encode. Called once for each configured frame.
struct EncodingError {};
struct EncodedData {
rtc::scoped_refptr<EncodedImageBufferInterface> bitstream_data;
FrameType frame_type;
int spatial_id;
int encoded_qp;
std::vector<int> referenced_buffers;
};
using EncodeResult = std::variant<EncodingError, EncodedData>;
using EncodeResultCallback =
absl::AnyInvocable<void(const EncodeResult& result)>;
virtual void Encode(rtc::scoped_refptr<webrtc::VideoFrameBuffer> frame_buffer,
const TemporalUnitSettings& settings,
const std::vector<FrameEncodeSettings>& frame_settings,
EncodeResultCallback encode_result_callback) = 0;
};
} // namespace webrtc
#endif // API_VIDEO_CODECS_VIDEO_ENCODER_INTERFACE_H_