| OLD | NEW |
|---|
| (Empty) |
| 1 /* | |
| 2 * Copyright (c) 2015 The WebRTC project authors. All Rights Reserved. | |
| 3 * | |
| 4 * Use of this source code is governed by a BSD-style license | |
| 5 * that can be found in the LICENSE file in the root of the source | |
| 6 * tree. An additional intellectual property rights grant can be found | |
| 7 * in the file PATENTS. All contributing project authors may | |
| 8 * be found in the AUTHORS file in the root of the source tree. | |
| 9 * | |
| 10 */ | |
| 11 | |
| 12 #ifndef WEBRTC_SDK_OBJC_FRAMEWORK_CLASSES_H264_VIDEO_TOOLBOX_ENCODER_H_ | |
| 13 #define WEBRTC_SDK_OBJC_FRAMEWORK_CLASSES_H264_VIDEO_TOOLBOX_ENCODER_H_ | |
| 14 | |
| 15 #include "webrtc/base/criticalsection.h" | |
| 16 #include "webrtc/common_video/h264/h264_bitstream_parser.h" | |
| 17 #include "webrtc/common_video/include/bitrate_adjuster.h" | |
| 18 #include "webrtc/common_video/rotation.h" | |
| 19 #include "webrtc/modules/video_coding/codecs/h264/include/h264.h" | |
| 20 #include "webrtc/modules/video_coding/utility/quality_scaler.h" | |
| 21 | |
| 22 #include <VideoToolbox/VideoToolbox.h> | |
| 23 #include <vector> | |
| 24 | |
| 25 // This file provides a H264 encoder implementation using the VideoToolbox | |
| 26 // APIs. Since documentation is almost non-existent, this is largely based on | |
| 27 // the information in the VideoToolbox header files, a talk from WWDC 2014 and | |
| 28 // experimentation. | |
| 29 | |
| 30 namespace webrtc { | |
| 31 | |
| 32 class H264VideoToolboxEncoder : public H264Encoder { | |
| 33 public: | |
| 34 H264VideoToolboxEncoder(); | |
| 35 | |
| 36 ~H264VideoToolboxEncoder() override; | |
| 37 | |
| 38 int InitEncode(const VideoCodec* codec_settings, | |
| 39 int number_of_cores, | |
| 40 size_t max_payload_size) override; | |
| 41 | |
| 42 int Encode(const VideoFrame& input_image, | |
| 43 const CodecSpecificInfo* codec_specific_info, | |
| 44 const std::vector<FrameType>* frame_types) override; | |
| 45 | |
| 46 int RegisterEncodeCompleteCallback(EncodedImageCallback* callback) override; | |
| 47 | |
| 48 void OnDroppedFrame() override; | |
| 49 int SetChannelParameters(uint32_t packet_loss, int64_t rtt) override; | |
| 50 | |
| 51 int SetRates(uint32_t new_bitrate_kbit, uint32_t frame_rate) override; | |
| 52 | |
| 53 int Release() override; | |
| 54 | |
| 55 const char* ImplementationName() const override; | |
| 56 | |
| 57 bool SupportsNativeHandle() const override; | |
| 58 | |
| 59 void OnEncodedFrame(OSStatus status, | |
| 60 VTEncodeInfoFlags info_flags, | |
| 61 CMSampleBufferRef sample_buffer, | |
| 62 CodecSpecificInfo codec_specific_info, | |
| 63 int32_t width, | |
| 64 int32_t height, | |
| 65 int64_t render_time_ms, | |
| 66 uint32_t timestamp, | |
| 67 VideoRotation rotation); | |
| 68 | |
| 69 private: | |
| 70 int ResetCompressionSession(); | |
| 71 void ConfigureCompressionSession(); | |
| 72 void DestroyCompressionSession(); | |
| 73 rtc::scoped_refptr<VideoFrameBuffer> GetScaledBufferOnEncode( | |
| 74 const rtc::scoped_refptr<VideoFrameBuffer>& frame); | |
| 75 void SetBitrateBps(uint32_t bitrate_bps); | |
| 76 void SetEncoderBitrateBps(uint32_t bitrate_bps); | |
| 77 | |
| 78 EncodedImageCallback* callback_; | |
| 79 VTCompressionSessionRef compression_session_; | |
| 80 BitrateAdjuster bitrate_adjuster_; | |
| 81 uint32_t target_bitrate_bps_; | |
| 82 uint32_t encoder_bitrate_bps_; | |
| 83 int32_t width_; | |
| 84 int32_t height_; | |
| 85 | |
| 86 rtc::CriticalSection quality_scaler_crit_; | |
| 87 QualityScaler quality_scaler_ GUARDED_BY(quality_scaler_crit_); | |
| 88 H264BitstreamParser h264_bitstream_parser_; | |
| 89 bool enable_scaling_; | |
| 90 std::vector<uint8_t> nv12_scale_buffer_; | |
| 91 }; // H264VideoToolboxEncoder | |
| 92 | |
| 93 } // namespace webrtc | |
| 94 | |
| 95 #endif // WEBRTC_SDK_OBJC_FRAMEWORK_CLASSES_H264_VIDEO_TOOLBOX_ENCODER_H_ | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2483273002:
Revert of Add a webrtc{en,de}coderfactory implementation for VideoToolbox (Closed)
