1 /* 2 * Copyright (c) 2016 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 #ifndef MODULES_VIDEO_CODING_UTILITY_IVF_FILE_WRITER_H_ 12 #define MODULES_VIDEO_CODING_UTILITY_IVF_FILE_WRITER_H_ 13 14 #include <stddef.h> 15 #include <stdint.h> 16 17 #include <memory> 18 19 #include "api/video/encoded_image.h" 20 #include "api/video/video_codec_type.h" 21 #include "rtc_base/system/file_wrapper.h" 22 #include "rtc_base/time_utils.h" 23 24 namespace webrtc { 25 26 class IvfFileWriter { 27 public: 28 // Takes ownership of the file, which will be closed either through 29 // Close or ~IvfFileWriter. If writing a frame would take the file above the 30 // `byte_limit` the file will be closed, the write (and all future writes) 31 // will fail. A `byte_limit` of 0 is equivalent to no limit. 32 static std::unique_ptr<IvfFileWriter> Wrap(FileWrapper file, 33 size_t byte_limit); 34 ~IvfFileWriter(); 35 36 IvfFileWriter(const IvfFileWriter&) = delete; 37 IvfFileWriter& operator=(const IvfFileWriter&) = delete; 38 39 bool WriteFrame(const EncodedImage& encoded_image, VideoCodecType codec_type); 40 bool Close(); 41 42 private: 43 explicit IvfFileWriter(FileWrapper file, size_t byte_limit); 44 45 bool WriteHeader(); 46 bool InitFromFirstFrame(const EncodedImage& encoded_image, 47 VideoCodecType codec_type); 48 bool WriteOneSpatialLayer(int64_t timestamp, 49 const uint8_t* data, 50 size_t size); 51 52 VideoCodecType codec_type_; 53 size_t bytes_written_; 54 size_t byte_limit_; 55 size_t num_frames_; 56 uint16_t width_; 57 uint16_t height_; 58 int64_t last_timestamp_; 59 bool using_capture_timestamps_; 60 rtc::TimestampWrapAroundHandler wrap_handler_; 61 FileWrapper file_; 62 }; 63 64 } // namespace webrtc 65 66 #endif // MODULES_VIDEO_CODING_UTILITY_IVF_FILE_WRITER_H_ 67