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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/sender/video_encoder.h"
#include "build/build_config.h"
#include "media/cast/sender/external_video_encoder.h"
#include "media/cast/sender/video_encoder_impl.h"
#if defined(OS_MACOSX)
#include "media/cast/sender/h264_vt_encoder.h"
#endif
namespace media {
namespace cast {
// static
scoped_ptr<VideoEncoder> VideoEncoder::Create(
const scoped_refptr<CastEnvironment>& cast_environment,
const VideoSenderConfig& video_config,
const StatusChangeCallback& status_change_cb,
const CreateVideoEncodeAcceleratorCallback& create_vea_cb,
const CreateVideoEncodeMemoryCallback& create_video_encode_memory_cb) {
// On MacOS or IOS, attempt to use the system VideoToolbox library to
// perform optimized H.264 encoding.
#if defined(OS_MACOSX) || defined(OS_IOS)
if (!video_config.use_external_encoder &&
H264VideoToolboxEncoder::IsSupported(video_config)) {
return scoped_ptr<VideoEncoder>(new H264VideoToolboxEncoder(
cast_environment, video_config, status_change_cb));
}
#endif // defined(OS_MACOSX)
#if !defined(OS_IOS)
// If the system provides a hardware-accelerated encoder, use it.
if (ExternalVideoEncoder::IsSupported(video_config)) {
return scoped_ptr<VideoEncoder>(new SizeAdaptableExternalVideoEncoder(
cast_environment,
video_config,
status_change_cb,
create_vea_cb,
create_video_encode_memory_cb));
}
// Attempt to use the software encoder implementation.
if (VideoEncoderImpl::IsSupported(video_config)) {
return scoped_ptr<VideoEncoder>(new VideoEncoderImpl(
cast_environment,
video_config,
status_change_cb));
}
#endif // !defined(OS_IOS)
// No encoder implementation will suffice.
return nullptr;
}
scoped_ptr<VideoFrameFactory> VideoEncoder::CreateVideoFrameFactory() {
return nullptr;
}
void VideoEncoder::EmitFrames() {
}
} // namespace cast
} // namespace media
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