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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "media/cast/encoding/video_encoder.h"
#include "base/memory/ptr_util.h"
#include "build/build_config.h"
#include "media/cast/encoding/external_video_encoder.h"
#include "media/cast/encoding/video_encoder_impl.h"
#if BUILDFLAG(IS_MAC)
#include "media/cast/encoding/h264_vt_encoder.h"
#endif
namespace media {
namespace cast {
// static
std::unique_ptr<VideoEncoder> VideoEncoder::Create(
const scoped_refptr<CastEnvironment>& cast_environment,
const FrameSenderConfig& video_config,
StatusChangeCallback status_change_cb,
const CreateVideoEncodeAcceleratorCallback& create_vea_cb) {
// On MacOS or IOS, attempt to use the system VideoToolbox library to
// perform optimized H.264 encoding.
#if BUILDFLAG(IS_MAC)
if (H264VideoToolboxEncoder::IsSupported(video_config)) {
return base::WrapUnique<VideoEncoder>(new H264VideoToolboxEncoder(
cast_environment, video_config, status_change_cb));
}
#endif // BUILDFLAG(IS_MAC)
#if !BUILDFLAG(IS_IOS)
// If the system provides a hardware-accelerated encoder, use it.
if (ExternalVideoEncoder::IsSupported(video_config)) {
return base::WrapUnique<VideoEncoder>(new SizeAdaptableExternalVideoEncoder(
cast_environment, video_config, std::move(status_change_cb),
create_vea_cb));
}
// Attempt to use the software encoder implementation.
if (VideoEncoderImpl::IsSupported(video_config)) {
return base::WrapUnique<VideoEncoder>(
new VideoEncoderImpl(cast_environment, video_config, status_change_cb));
}
#endif // !BUILDFLAG(IS_IOS)
// No encoder implementation will suffice.
return nullptr;
}
std::unique_ptr<VideoFrameFactory> VideoEncoder::CreateVideoFrameFactory() {
return nullptr;
}
void VideoEncoder::EmitFrames() {}
} // namespace cast
} // namespace media
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