105 lines
3.2 KiB
C++
105 lines
3.2 KiB
C++
/*
|
|
* Copyright (c) 2012 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 TEST_TESTSUPPORT_FRAME_WRITER_H_
|
|
#define TEST_TESTSUPPORT_FRAME_WRITER_H_
|
|
|
|
#include <stdio.h>
|
|
|
|
#include <string>
|
|
|
|
#include "api/video/video_frame.h"
|
|
|
|
namespace webrtc {
|
|
namespace test {
|
|
|
|
// Handles writing of video files.
|
|
class FrameWriter {
|
|
public:
|
|
virtual ~FrameWriter() {}
|
|
|
|
// Initializes the file handler, i.e. opens the input and output files etc.
|
|
// This must be called before reading or writing frames has started.
|
|
// Returns false if an error has occurred, in addition to printing to stderr.
|
|
virtual bool Init() = 0;
|
|
|
|
// Writes a frame of the configured frame length to the output file.
|
|
// Returns true if the write was successful, false otherwise.
|
|
virtual bool WriteFrame(uint8_t* frame_buffer) = 0;
|
|
|
|
// Closes the output file if open. Essentially makes this class impossible
|
|
// to use anymore. Will also be invoked by the destructor.
|
|
virtual void Close() = 0;
|
|
|
|
// Frame length in bytes of a single frame image.
|
|
virtual size_t FrameLength() = 0;
|
|
};
|
|
|
|
// Writes raw I420 frames in sequence.
|
|
class YuvFrameWriterImpl : public FrameWriter {
|
|
public:
|
|
// Creates a file handler. The input file is assumed to exist and be readable
|
|
// and the output file must be writable.
|
|
// Parameters:
|
|
// output_filename The file to write. Will be overwritten if already
|
|
// existing.
|
|
// width, height Size of each frame to read.
|
|
YuvFrameWriterImpl(std::string output_filename, int width, int height);
|
|
~YuvFrameWriterImpl() override;
|
|
bool Init() override;
|
|
bool WriteFrame(uint8_t* frame_buffer) override;
|
|
void Close() override;
|
|
size_t FrameLength() override;
|
|
|
|
protected:
|
|
const std::string output_filename_;
|
|
size_t frame_length_in_bytes_;
|
|
const int width_;
|
|
const int height_;
|
|
FILE* output_file_;
|
|
};
|
|
|
|
// Writes raw I420 frames in sequence, but with Y4M file and frame headers for
|
|
// more convenient playback in external media players.
|
|
class Y4mFrameWriterImpl : public YuvFrameWriterImpl {
|
|
public:
|
|
Y4mFrameWriterImpl(std::string output_filename,
|
|
int width,
|
|
int height,
|
|
int frame_rate);
|
|
~Y4mFrameWriterImpl() override;
|
|
bool Init() override;
|
|
bool WriteFrame(uint8_t* frame_buffer) override;
|
|
|
|
private:
|
|
const int frame_rate_;
|
|
};
|
|
|
|
// LibJpeg is not available on iOS. This class will do nothing on iOS.
|
|
class JpegFrameWriter {
|
|
public:
|
|
JpegFrameWriter(const std::string& output_filename);
|
|
// Quality can be from 0 (worst) to 100 (best). Best quality is still lossy.
|
|
// WriteFrame can be called only once. Subsequent calls will fail.
|
|
bool WriteFrame(const VideoFrame& input_frame, int quality);
|
|
|
|
#if !defined(WEBRTC_IOS)
|
|
private:
|
|
bool frame_written_;
|
|
const std::string output_filename_;
|
|
FILE* output_file_;
|
|
#endif
|
|
};
|
|
|
|
} // namespace test
|
|
} // namespace webrtc
|
|
|
|
#endif // TEST_TESTSUPPORT_FRAME_WRITER_H_
|