blob: 2216287b922832a744af2fd404a61fb67cde2591 [file] [log] [blame]
* Copyright 2020 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.
#include <stdint.h>
#include <vector>
#include "api/transport/rtp/dependency_descriptor.h"
#include "api/video/encoded_image.h"
#include "api/video_codecs/video_encoder.h"
#include "modules/video_coding/include/video_codec_interface.h"
namespace webrtc {
// Wrapper around VideoEncoder::Encode for convenient input (generates frames)
// and output (returns encoded frames instead of passing them to callback)
class EncodedVideoFrameProducer {
struct EncodedFrame {
EncodedImage encoded_image;
CodecSpecificInfo codec_specific_info;
// `encoder` should be initialized, but shouldn't have `EncoderCallback` set.
explicit EncodedVideoFrameProducer(VideoEncoder& encoder)
: encoder_(encoder) {}
EncodedVideoFrameProducer(const EncodedVideoFrameProducer&) = delete;
EncodedVideoFrameProducer& operator=(const EncodedVideoFrameProducer&) =
// Number of the input frames to pass to the encoder.
EncodedVideoFrameProducer& SetNumInputFrames(int value);
// Encode next frame as key frame.
EncodedVideoFrameProducer& ForceKeyFrame();
// Resolution of the input frames.
EncodedVideoFrameProducer& SetResolution(RenderResolution value);
EncodedVideoFrameProducer& SetFramerateFps(int value);
// Generates input video frames and encodes them with `encoder` provided in
// the constructor. Returns frame passed to the `OnEncodedImage` by wraping
// `EncodedImageCallback` underneath.
std::vector<EncodedFrame> Encode();
VideoEncoder& encoder_;
uint32_t rtp_timestamp_ = 1000;
int num_input_frames_ = 1;
int framerate_fps_ = 30;
RenderResolution resolution_ = {320, 180};
std::vector<VideoFrameType> next_frame_type_ = {
inline EncodedVideoFrameProducer& EncodedVideoFrameProducer::SetNumInputFrames(
int value) {
RTC_DCHECK_GT(value, 0);
num_input_frames_ = value;
return *this;
inline EncodedVideoFrameProducer& EncodedVideoFrameProducer::ForceKeyFrame() {
next_frame_type_ = {VideoFrameType::kVideoFrameKey};
return *this;
inline EncodedVideoFrameProducer& EncodedVideoFrameProducer::SetResolution(
RenderResolution value) {
resolution_ = value;
return *this;
inline EncodedVideoFrameProducer& EncodedVideoFrameProducer::SetFramerateFps(
int value) {
RTC_DCHECK_GT(value, 0);
framerate_fps_ = value;
return *this;
} // namespace webrtc