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// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// Borrowed from media/tools/omx_test/file_reader_util.h.
// Added some functionalities related to timestamps on packets and Media
// Foundation.
#ifndef MEDIA_MF_FILE_READER_UTIL_H_
#define MEDIA_MF_FILE_READER_UTIL_H_
#include <string>
#include "base/basictypes.h"
#include "base/scoped_handle.h"
#include "base/scoped_ptr.h"
struct AVCodecContext;
struct AVFormatContext;
namespace media {
class BitstreamConverter;
// A class to help reading and parsing input file for use in omx_test.
class FileReader {
public:
virtual ~FileReader() {}
// Initialize FileReader object, returns true if successful.
virtual bool Initialize() = 0;
// Read the file into |output|, and output the number of bytes read to
// |size|.
virtual void Read(uint8** output, int* size) = 0;
};
class FFmpegFileReader : public FileReader {
public:
explicit FFmpegFileReader(const std::string& filename);
virtual ~FFmpegFileReader();
virtual bool Initialize();
virtual void Read(uint8** output, int* size);
// Reads a video packet, converts it into Annex B stream, and allocates a
// buffer to |*output| and copies the contents into it. Timestamp and
// duration are given in 100-ns units.
void Read2(uint8** output, int* size, int64* timestamp, int64* duration);
bool GetFrameRate(int* num, int* denom) const;
bool GetWidth(int* width) const;
bool GetHeight(int* height) const;
bool GetAspectRatio(int* num, int* denom) const;
int64 ConvertFFmpegTimeBaseTo100Ns(int64 time_base_unit) const;
bool end_of_stream() const { return end_of_stream_; }
private:
std::string filename_;
AVFormatContext* format_context_;
AVCodecContext* codec_context_;
int target_stream_;
scoped_ptr<media::BitstreamConverter> converter_;
bool end_of_stream_;
DISALLOW_COPY_AND_ASSIGN(FFmpegFileReader);
};
} // namespace media
#endif // MEDIA_MF_FILE_READER_UTIL_H_
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