71 lines
2.2 KiB
C
71 lines
2.2 KiB
C
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/*
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* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef WEBRTC_TEST_TESTSUPPORT_FRAME_WRITER_H_
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#define WEBRTC_TEST_TESTSUPPORT_FRAME_WRITER_H_
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#include <stdio.h>
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#include <string>
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#include "webrtc/typedefs.h"
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namespace webrtc {
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namespace test {
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// Handles writing of video files.
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class FrameWriter {
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public:
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virtual ~FrameWriter() {}
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// Initializes the file handler, i.e. opens the input and output files etc.
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// This must be called before reading or writing frames has started.
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// Returns false if an error has occurred, in addition to printing to stderr.
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virtual bool Init() = 0;
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// Writes a frame of the configured frame length to the output file.
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// Returns true if the write was successful, false otherwise.
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virtual bool WriteFrame(uint8_t* frame_buffer) = 0;
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// Closes the output file if open. Essentially makes this class impossible
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// to use anymore. Will also be invoked by the destructor.
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virtual void Close() = 0;
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// Frame length in bytes of a single frame image.
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virtual size_t FrameLength() = 0;
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};
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class FrameWriterImpl : public FrameWriter {
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public:
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// Creates a file handler. The input file is assumed to exist and be readable
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// and the output file must be writable.
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// Parameters:
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// output_filename The file to write. Will be overwritten if already
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// existing.
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// frame_length_in_bytes The size of each frame.
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// For YUV: 3*width*height/2
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FrameWriterImpl(std::string output_filename, size_t frame_length_in_bytes);
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~FrameWriterImpl() override;
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bool Init() override;
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bool WriteFrame(uint8_t* frame_buffer) override;
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void Close() override;
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size_t FrameLength() override;
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private:
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std::string output_filename_;
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size_t frame_length_in_bytes_;
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FILE* output_file_;
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};
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} // namespace test
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} // namespace webrtc
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#endif // WEBRTC_TEST_TESTSUPPORT_FRAME_WRITER_H_
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