| /* |
| * Copyright 2015 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 "webrtc/sdk/objc/Framework/Classes/videotoolboxvideocodecfactory.h" |
| |
| #include "webrtc/base/logging.h" |
| #include "webrtc/common_video/h264/profile_level_id.h" |
| #include "webrtc/media/base/codec.h" |
| #include "webrtc/sdk/objc/Framework/Classes/h264_video_toolbox_decoder.h" |
| #include "webrtc/sdk/objc/Framework/Classes/h264_video_toolbox_encoder.h" |
| #include "webrtc/system_wrappers/include/field_trial.h" |
| |
| namespace webrtc { |
| |
| namespace { |
| const char kHighProfileExperiment[] = "WebRTC-H264HighProfile"; |
| |
| bool IsHighProfileEnabled() { |
| return field_trial::IsEnabled(kHighProfileExperiment); |
| } |
| } |
| |
| // VideoToolboxVideoEncoderFactory |
| |
| VideoToolboxVideoEncoderFactory::VideoToolboxVideoEncoderFactory() { |
| } |
| |
| VideoToolboxVideoEncoderFactory::~VideoToolboxVideoEncoderFactory() {} |
| |
| VideoEncoder* VideoToolboxVideoEncoderFactory::CreateVideoEncoder( |
| const cricket::VideoCodec& codec) { |
| if (FindMatchingCodec(supported_codecs_, codec)) { |
| LOG(LS_INFO) << "Creating HW encoder for " << codec.name; |
| return new H264VideoToolboxEncoder(codec); |
| } |
| LOG(LS_INFO) << "No HW encoder found for codec " << codec.name; |
| return nullptr; |
| } |
| |
| void VideoToolboxVideoEncoderFactory::DestroyVideoEncoder( |
| VideoEncoder* encoder) { |
| delete encoder; |
| encoder = nullptr; |
| } |
| |
| const std::vector<cricket::VideoCodec>& |
| VideoToolboxVideoEncoderFactory::supported_codecs() const { |
| supported_codecs_.clear(); |
| |
| // TODO(magjed): Enumerate actual level instead of using hardcoded level 3.1. |
| // Level 3.1 is 1280x720@30fps which is enough for now. |
| const H264::Level level = H264::kLevel3_1; |
| |
| if (IsHighProfileEnabled()) { |
| cricket::VideoCodec constrained_high(cricket::kH264CodecName); |
| const H264::ProfileLevelId constrained_high_profile( |
| H264::kProfileConstrainedHigh, level); |
| constrained_high.SetParam( |
| cricket::kH264FmtpProfileLevelId, |
| *H264::ProfileLevelIdToString(constrained_high_profile)); |
| constrained_high.SetParam(cricket::kH264FmtpLevelAsymmetryAllowed, "1"); |
| constrained_high.SetParam(cricket::kH264FmtpPacketizationMode, "1"); |
| supported_codecs_.push_back(constrained_high); |
| } |
| |
| cricket::VideoCodec constrained_baseline(cricket::kH264CodecName); |
| const H264::ProfileLevelId constrained_baseline_profile( |
| H264::kProfileConstrainedBaseline, level); |
| constrained_baseline.SetParam( |
| cricket::kH264FmtpProfileLevelId, |
| *H264::ProfileLevelIdToString(constrained_baseline_profile)); |
| constrained_baseline.SetParam(cricket::kH264FmtpLevelAsymmetryAllowed, "1"); |
| constrained_baseline.SetParam(cricket::kH264FmtpPacketizationMode, "1"); |
| supported_codecs_.push_back(constrained_baseline); |
| |
| return supported_codecs_; |
| } |
| |
| // VideoToolboxVideoDecoderFactory |
| |
| VideoToolboxVideoDecoderFactory::VideoToolboxVideoDecoderFactory() { |
| supported_codecs_.push_back(cricket::VideoCodec("H264")); |
| } |
| |
| VideoToolboxVideoDecoderFactory::~VideoToolboxVideoDecoderFactory() {} |
| |
| VideoDecoder* VideoToolboxVideoDecoderFactory::CreateVideoDecoder( |
| VideoCodecType type) { |
| const rtc::Optional<const char*> codec_name = CodecTypeToPayloadName(type); |
| if (!codec_name) { |
| LOG(LS_ERROR) << "Invalid codec type: " << type; |
| return nullptr; |
| } |
| const cricket::VideoCodec codec(*codec_name); |
| if (FindMatchingCodec(supported_codecs_, codec)) { |
| LOG(LS_INFO) << "Creating HW decoder for " << codec.name; |
| return new H264VideoToolboxDecoder(); |
| } |
| LOG(LS_INFO) << "No HW decoder found for codec " << codec.name; |
| return nullptr; |
| } |
| |
| void VideoToolboxVideoDecoderFactory::DestroyVideoDecoder( |
| VideoDecoder* decoder) { |
| delete decoder; |
| decoder = nullptr; |
| } |
| |
| } // namespace webrtc |