blob: 8a6b1c215259a0bede437dc9ab2eb94b688c4ae2 [file] [log] [blame]
* 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.
#include <stdio.h>
#include <string>
#include "webrtc/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(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;
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, size_t frame_length_in_bytes);
~FrameWriterImpl() override;
bool Init() override;
bool WriteFrame(uint8_t* frame_buffer) override;
void Close() override;
size_t FrameLength() override;
std::string output_filename_;
size_t frame_length_in_bytes_;
FILE* output_file_;
} // namespace test
} // namespace webrtc