blob: abc5d35191a4e95fad1182d505de2e07db3c155c [file] [log] [blame]
* Copyright (c) 2011 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.
#include <cstdio>
#include <string>
#include "typedefs.h"
namespace webrtc {
namespace test {
// Handles writing of video files.
class FrameWriter {
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(WebRtc_UWord8* 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 int FrameLength() = 0;
class FrameWriterImpl : public FrameWriter {
// 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.
// frame_length_in_bytes The size of each frame.
// For YUV: 3*width*height/2
FrameWriterImpl(std::string output_filename, int frame_length_in_bytes);
virtual ~FrameWriterImpl();
bool Init();
bool WriteFrame(WebRtc_UWord8* frame_buffer);
void Close();
int FrameLength() { return frame_length_in_bytes_; }
std::string output_filename_;
int frame_length_in_bytes_;
int number_of_frames_;
FILE* output_file_;
} // namespace test
} // namespace webrtc