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#pragma once
#include "../BaseSplitter/BaseSplitter.h"
#pragma pack(push, 1)
struct OggPageHeader
{
DWORD capture_pattern;
BYTE stream_structure_version;
BYTE header_type_flag; enum {continued=1, first=2, last=4};
__int64 granule_position;
DWORD bitstream_serial_number;
DWORD page_sequence_number;
DWORD CRC_checksum;
BYTE number_page_segments;
};
struct OggVorbisIdHeader
{
DWORD vorbis_version;
BYTE audio_channels;
DWORD audio_sample_rate;
DWORD bitrate_maximum;
DWORD bitrate_nominal;
DWORD bitrate_minimum;
BYTE blocksize_0:4;
BYTE blocksize_1:4;
BYTE framing_flag;
};
struct OggVideoHeader
{
DWORD w, h;
};
struct OggAudioHeader
{
WORD nChannels, nBlockAlign;
DWORD nAvgBytesPerSec;
};
struct OggStreamHeader
{
char streamtype[8], subtype[4];
DWORD size;
__int64 time_unit, samples_per_unit;
DWORD default_len;
DWORD buffersize;
WORD bps;
WORD alignmentfix1;
union {OggVideoHeader v; OggAudioHeader a;};
DWORD alignmentfix2;
};
#pragma pack(pop)
class OggPage : public CAtlArray<BYTE>
{
public:
OggPageHeader m_hdr;
CAtlList<int> m_lens;
OggPage() {memset(&m_hdr, 0, sizeof(m_hdr));}
};
class COggFile : public CBaseSplitterFile
{
HRESULT Init();
public:
COggFile(IAsyncReader* pAsyncReader, HRESULT& hr);
bool Sync(HANDLE hBreak = NULL);
bool Read(OggPageHeader& hdr, HANDLE hBreak = NULL);
bool Read(OggPage& page, bool fFull = true, HANDLE hBreak = NULL);
};
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