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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.
#ifndef MEDIA_TOOLS_OMX_TEST_FILE_READER_UTIL_H_
#define MEDIA_TOOLS_OMX_TEST_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 BasicFileReader : public FileReader {
public:
explicit BasicFileReader(const char* filename);
virtual bool Initialize();
virtual void Read(uint8** output, int* size) = 0;
protected:
FILE* file() const { return file_.get(); }
private:
std::string filename_;
ScopedStdioHandle file_;
DISALLOW_COPY_AND_ASSIGN(BasicFileReader);
};
class YuvFileReader : public BasicFileReader {
public:
// Construct a YUV file reader with looping and color space conversion
// ability. |loop_count| specifies the number of times the input file
// is read. If |enable_csc| is true, input in YV420 is converted to
// NV21.
// TODO(jiesun): Make color space more generic not a hard coded color
// space conversion.
YuvFileReader(const char* filename,
int width,
int height,
int loop_count,
bool output_nv21);
virtual void Read(uint8** output, int* size);
private:
int width_;
int height_;
int loop_count_;
bool output_nv21_;
scoped_array<uint8> csc_buf_;
DISALLOW_COPY_AND_ASSIGN(YuvFileReader);
};
class BlockFileReader : public BasicFileReader {
public:
BlockFileReader(const char* filename,
int block_size);
virtual void Read(uint8** output, int* size);
private:
int block_size_;
DISALLOW_COPY_AND_ASSIGN(BlockFileReader);
};
class FFmpegFileReader : public FileReader {
public:
explicit FFmpegFileReader(const char* filename);
virtual ~FFmpegFileReader();
virtual bool Initialize();
virtual void Read(uint8** output, int* size);
private:
std::string filename_;
AVFormatContext* format_context_;
AVCodecContext* codec_context_;
int target_stream_;
scoped_ptr<media::BitstreamConverter> converter_;
DISALLOW_COPY_AND_ASSIGN(FFmpegFileReader);
};
class H264FileReader : public BasicFileReader {
public:
explicit H264FileReader(const char* filename);
virtual void Read(uint8** output, int* size);
private:
scoped_array<uint8> read_buf_;
int current_;
int used_;
DISALLOW_COPY_AND_ASSIGN(H264FileReader);
};
} // namespace media
#endif // MEDIA_TOOLS_OMX_TEST_FILE_READER_UTIL_H_
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