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/*
* Copyright (c) 2016 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.
*/
#ifndef MODULES_VIDEO_CODING_UTILITY_IVF_FILE_WRITER_H_
#define MODULES_VIDEO_CODING_UTILITY_IVF_FILE_WRITER_H_
#include <stddef.h>
#include <stdint.h>
#include <memory>
#include "absl/strings/string_view.h"
#include "api/video/encoded_image.h"
#include "api/video/video_codec_type.h"
#include "rtc_base/numerics/sequence_number_unwrapper.h"
#include "rtc_base/system/file_wrapper.h"
namespace webrtc {
class IvfFileWriter {
public:
// Takes ownership of the file, which will be closed either through
// Close or ~IvfFileWriter. If writing a frame would take the file above the
// `byte_limit` the file will be closed, the write (and all future writes)
// will fail. A `byte_limit` of 0 is equivalent to no limit.
static std::unique_ptr<IvfFileWriter> Wrap(FileWrapper file,
size_t byte_limit);
static std::unique_ptr<IvfFileWriter> Wrap(absl::string_view filename,
size_t byte_limit);
~IvfFileWriter();
IvfFileWriter(const IvfFileWriter&) = delete;
IvfFileWriter& operator=(const IvfFileWriter&) = delete;
bool WriteFrame(const EncodedImage& encoded_image, VideoCodecType codec_type);
bool Close();
private:
explicit IvfFileWriter(FileWrapper file, size_t byte_limit);
bool WriteHeader();
bool InitFromFirstFrame(const EncodedImage& encoded_image,
VideoCodecType codec_type);
bool WriteOneSpatialLayer(int64_t timestamp,
const uint8_t* data,
size_t size);
VideoCodecType codec_type_;
size_t bytes_written_;
size_t byte_limit_;
size_t num_frames_;
uint16_t width_;
uint16_t height_;
int64_t last_timestamp_;
bool using_capture_timestamps_;
RtpTimestampUnwrapper wrap_handler_;
FileWrapper file_;
};
} // namespace webrtc
#endif // MODULES_VIDEO_CODING_UTILITY_IVF_FILE_WRITER_H_
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