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b065f1bbd8
Bug: webrtc:15860 Change-Id: Ie1b03811f8082d5584434b46e552003bfbe5ea96 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/346620 Reviewed-by: Erik Språng <sprang@webrtc.org> Commit-Queue: Danil Chapovalov <danilchap@webrtc.org> Cr-Commit-Position: refs/heads/main@{#42078}
130 lines
4.3 KiB
C++
130 lines
4.3 KiB
C++
/*
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* Copyright (c) 2018 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "test/fake_vp8_encoder.h"
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#include <algorithm>
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#include "absl/types/optional.h"
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#include "api/video_codecs/video_encoder.h"
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#include "api/video_codecs/vp8_temporal_layers.h"
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#include "api/video_codecs/vp8_temporal_layers_factory.h"
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#include "modules/video_coding/codecs/interface/common_constants.h"
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#include "modules/video_coding/include/video_codec_interface.h"
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#include "modules/video_coding/include/video_error_codes.h"
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#include "modules/video_coding/utility/simulcast_utility.h"
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namespace {
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// Write width and height to the payload the same way as the real encoder does.
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// It requires that `payload` has a size of at least kMinPayLoadHeaderLength.
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void WriteFakeVp8(unsigned char* payload,
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int width,
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int height,
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bool key_frame) {
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payload[0] = key_frame ? 0 : 0x01;
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if (key_frame) {
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payload[9] = (height & 0x3F00) >> 8;
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payload[8] = (height & 0x00FF);
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payload[7] = (width & 0x3F00) >> 8;
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payload[6] = (width & 0x00FF);
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}
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}
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} // namespace
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namespace webrtc {
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namespace test {
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FakeVp8Encoder::FakeVp8Encoder(const Environment& env) : FakeEncoder(env) {
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sequence_checker_.Detach();
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}
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int32_t FakeVp8Encoder::InitEncode(const VideoCodec* config,
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const Settings& settings) {
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RTC_DCHECK_RUN_ON(&sequence_checker_);
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auto result = FakeEncoder::InitEncode(config, settings);
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if (result != WEBRTC_VIDEO_CODEC_OK) {
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return result;
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}
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Vp8TemporalLayersFactory factory;
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frame_buffer_controller_ =
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factory.Create(*config, settings, &fec_controller_override_);
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return WEBRTC_VIDEO_CODEC_OK;
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}
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int32_t FakeVp8Encoder::Release() {
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auto result = FakeEncoder::Release();
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sequence_checker_.Detach();
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return result;
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}
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CodecSpecificInfo FakeVp8Encoder::PopulateCodecSpecific(
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size_t size_bytes,
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VideoFrameType frame_type,
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int stream_idx,
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uint32_t timestamp) {
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RTC_DCHECK_RUN_ON(&sequence_checker_);
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CodecSpecificInfo codec_specific;
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codec_specific.codecType = kVideoCodecVP8;
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codec_specific.codecSpecific.VP8.keyIdx = kNoKeyIdx;
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codec_specific.codecSpecific.VP8.nonReference = false;
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if (size_bytes > 0) {
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frame_buffer_controller_->OnEncodeDone(
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stream_idx, timestamp, size_bytes,
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frame_type == VideoFrameType::kVideoFrameKey, -1, &codec_specific);
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} else {
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frame_buffer_controller_->OnFrameDropped(stream_idx, timestamp);
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}
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return codec_specific;
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}
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CodecSpecificInfo FakeVp8Encoder::EncodeHook(
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EncodedImage& encoded_image,
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rtc::scoped_refptr<EncodedImageBuffer> buffer) {
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RTC_DCHECK_RUN_ON(&sequence_checker_);
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uint8_t simulcast_index = encoded_image.SimulcastIndex().value_or(0);
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frame_buffer_controller_->NextFrameConfig(simulcast_index,
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encoded_image.RtpTimestamp());
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CodecSpecificInfo codec_specific =
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PopulateCodecSpecific(encoded_image.size(), encoded_image._frameType,
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simulcast_index, encoded_image.RtpTimestamp());
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// Write width and height to the payload the same way as the real encoder
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// does.
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WriteFakeVp8(buffer->data(), encoded_image._encodedWidth,
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encoded_image._encodedHeight,
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encoded_image._frameType == VideoFrameType::kVideoFrameKey);
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return codec_specific;
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}
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VideoEncoder::EncoderInfo FakeVp8Encoder::GetEncoderInfo() const {
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EncoderInfo info;
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info.implementation_name = "FakeVp8Encoder";
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MutexLock lock(&mutex_);
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for (int sid = 0; sid < config_.numberOfSimulcastStreams; ++sid) {
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int number_of_temporal_layers =
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config_.simulcastStream[sid].numberOfTemporalLayers;
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info.fps_allocation[sid].clear();
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for (int tid = 0; tid < number_of_temporal_layers; ++tid) {
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// {1/4, 1/2, 1} allocation for num layers = 3.
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info.fps_allocation[sid].push_back(255 /
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(number_of_temporal_layers - tid));
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}
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}
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return info;
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}
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} // namespace test
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} // namespace webrtc
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