blob: 1d0827cbc0c4d996f71499149080bae53a4dc0ba [file] [log] [blame]
* Copyright (c) 2018 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 "api/video_codecs/builtin_video_encoder_factory.h"
#include <vector>
#include "absl/memory/memory.h"
#include "absl/strings/match.h"
#include "api/video_codecs/sdp_video_format.h"
#include "media/base/codec.h"
#include "media/base/mediaconstants.h"
#include "media/engine/internalencoderfactory.h"
#include "media/engine/vp8_encoder_simulcast_proxy.h"
namespace webrtc {
namespace {
bool IsFormatSupported(const std::vector<SdpVideoFormat>& supported_formats,
const SdpVideoFormat& format) {
for (const SdpVideoFormat& supported_format : supported_formats) {
if (cricket::IsSameCodec(, format.parameters,,
supported_format.parameters)) {
return true;
return false;
// This class wraps the internal factory and adds simulcast.
class BuiltinVideoEncoderFactory : public VideoEncoderFactory {
: internal_encoder_factory_(new InternalEncoderFactory()) {}
VideoEncoderFactory::CodecInfo QueryVideoEncoder(
const SdpVideoFormat& format) const override {
// Format must be one of the internal formats.
internal_encoder_factory_->GetSupportedFormats(), format));
VideoEncoderFactory::CodecInfo info;
info.has_internal_source = false;
info.is_hardware_accelerated = false;
return info;
std::unique_ptr<VideoEncoder> CreateVideoEncoder(
const SdpVideoFormat& format) override {
// Try creating internal encoder.
std::unique_ptr<VideoEncoder> internal_encoder;
if (IsFormatSupported(internal_encoder_factory_->GetSupportedFormats(),
format)) {
internal_encoder =
absl::EqualsIgnoreCase(, cricket::kVp8CodecName)
? absl::make_unique<VP8EncoderSimulcastProxy>(
internal_encoder_factory_.get(), format)
: internal_encoder_factory_->CreateVideoEncoder(format);
return internal_encoder;
std::vector<SdpVideoFormat> GetSupportedFormats() const override {
return internal_encoder_factory_->GetSupportedFormats();
const std::unique_ptr<VideoEncoderFactory> internal_encoder_factory_;
} // namespace
std::unique_ptr<VideoEncoderFactory> CreateBuiltinVideoEncoderFactory() {
return absl::make_unique<BuiltinVideoEncoderFactory>();
} // namespace webrtc