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/*
* streaminfo.h: A program for the Video Disk Recorder
*
* See the README file for copyright information and how to reach the author.
*
*/
#ifndef __streaminfo_h_
#define __streaminfo_h_
#include "global.h"
class cMarkAdStreamInfo
{
private:
// taken from ffmpeg
enum
{
NAL_SLICE = 0x01, // Slice
NAL_IDR_SLICE = 0x05, // IDR-Slice
NAL_SEI = 0x06, // Supplemental Enhancement Information
NAL_SPS = 0x07, // Sequence Parameter Set
NAL_PPS = 0x08, // Picture Parameter Set
NAL_AUD = 0x09, // Access Unit Delimiter
NAL_END_SEQ = 0x0A, // End of Sequence
NAL_FILLER = 0x0C, // Filler data
NAL_SPS_EXT = 0x0D, // Sequence Parameter Set Extension
NAL_AUX_SLICE = 0x19 // Auxilary Slice
};
struct H264
{
bool separate_colour_plane_flag;
int log2_max_frame_num;
bool use_field;
} H264;
int nalUnescape(uint8_t *dst, const uint8_t *src, int len);
bool FindH264VideoInfos(MarkAdContext *maContext, uchar *pkt, int len);
bool FindH262VideoInfos(MarkAdContext *maContext, uchar *pkt, int len);
public:
cMarkAdStreamInfo();
void Clear();
bool FindVideoInfos(MarkAdContext *maContext, uchar *pkt, int len);
bool FindAC3AudioInfos(MarkAdContext *maContext, uchar *espkt, int eslen);
};
// taken from femon
class cBitStream
{
private:
const uint8_t *data;
int count; // in bits
int index; // in bits
public:
cBitStream(const uint8_t *buf, const int len);
~cBitStream();
int getBit();
uint32_t getBits(uint32_t n);
void skipBits(uint32_t n);
uint32_t getUeGolomb();
int32_t getSeGolomb();
void skipGolomb();
void skipUeGolomb();
void skipSeGolomb();
void byteAlign();
void skipBit()
{
skipBits(1);
}
uint32_t getU8()
{
return getBits(8);
}
uint32_t getU16()
{
return ((getBits(8) << 8) | getBits(8));
}
uint32_t getU24()
{
return ((getBits(8) << 16) | (getBits(8) << 8) | getBits(8));
}
uint32_t getU32()
{
return ((getBits(8) << 24) | (getBits(8) << 16) | (getBits(8) << 8) | getBits(8));
}
bool isEOF()
{
return (index >= count);
}
void reset()
{
index = 0;
}
int getIndex()
{
return (isEOF() ? count : index);
}
const uint8_t *getData()
{
return (isEOF() ? NULL : data + (index / 8));
}
};
#endif
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