Java Page类代码示例

import com.jcraft.jogg.Page; //导入依赖的package包/类
private void initJOrbis() {
	oy = new SyncState();
	os = new StreamState();
	og = new Page();
	op = new Packet();

	vi = new Info();
	vc = new Comment();
	vd = new DspState();
	vb = new Block(vd);

	buffer = null;
	bytes = 0;

	oy.init();
}
 

import com.jcraft.jogg.Page; //导入依赖的package包/类
/**
  * Initializes all the jOrbis and jOgg vars that are used for song playback.
  */
 private void init_jorbis()
 {
   oggSyncState_ = new SyncState();
   oggStreamState_ = new StreamState();
   oggPage_ = new Page();
   oggPacket_ = new Packet();
   vorbisInfo = new Info();
   vorbisComment = new Comment();
   vorbisDspState = new DspState();
   vorbisBlock = new Block(vorbisDspState);
   buffer = null;
   bytes = 0;
currentBytes = 0L;
   oggSyncState_.init();
 }
 

import com.jcraft.jogg.Page; //导入依赖的package包/类
private void initJOrbis() {
    oy = new SyncState();
    os = new StreamState();
    og = new Page();
    op = new Packet();

    vi = new Info();
    vc = new Comment();
    vd = new DspState();
    vb = new Block(vd);

    buffer = null;
    bytes = 0;

    oy.init();
}
 

import com.jcraft.jogg.Page; //导入依赖的package包/类
private void initJOrbis(){
    oy=new SyncState();
    os=new StreamState();
    og=new Page();
    op=new Packet();
  
    vi=new Info();
    vc=new Comment();
    vd=new DspState();
    vb=new Block(vd);
  
    buffer=null;
    bytes=0;

    oy.init();
}
 

import com.jcraft.jogg.Page; //导入依赖的package包/类
/**
 * Initializes OGG player
 */
private void initializeJOrbis() {
  joggPacket = new Packet();
  joggPage = new Page();
  joggStreamState = new StreamState();
  joggSyncState = new SyncState();
  jorbisDspState = new DspState();
  jorbisBlock = new Block(jorbisDspState);
  jorbisComment = new Comment();
  jorbisInfo = new Info();
  joggSyncState.init();
}
 

import com.jcraft.jogg.Page; //导入依赖的package包/类
/**
 * Initialize JOrbis.
 */
void initJOrbis() {
	oy = new SyncState();
	os = new StreamState();
	og = new Page();
	op = new Packet();

	vi = new Info();
	vc = new Comment();
	vd = new DspState();
	vb = new Block(vd);

	oy.init();
}
 

import com.jcraft.jogg.Page; //导入依赖的package包/类
/**
 * Get next page.
 * @param page the page
 * @return offset or OV_* error code
 * @throws JOrbisException if an error occurs
 */
private int getPrevPage(Page page) throws JOrbisException {
	long begin = offset; // !!!
	int ret;
	int offst = -1;
	while (offst == -1) {
		begin -= CHUNKSIZE;
		if (begin < 0) {
			begin = 0;
		}
		seekHelper(begin);
		while (offset < begin + CHUNKSIZE) {
			ret = getNextPage(page, begin + CHUNKSIZE - offset);
			if (ret == OV_EREAD) {
				return OV_EREAD;
			}
			if (ret < 0) {
				if (offst == -1) {
					throw new JOrbisException();
				}
				break;
			}
			offst = ret;
		}
	}
	seekHelper(offst); // !!!
	ret = getNextPage(page, CHUNKSIZE);
	if (ret < 0) {
		return OV_EFAULT;
	}
	return offst;
}
 

import com.jcraft.jogg.Page; //导入依赖的package包/类
/**
 * Initializes JOrbis.
 */
private void initializeJOrbis()
{
  joggPacket = new Packet();
  joggPage = new Page();
  joggStreamState = new StreamState();
  joggSyncState = new SyncState();
  jorbisDspState = new DspState();
  jorbisBlock = new Block(jorbisDspState);
  jorbisComment = new Comment();
  jorbisInfo = new Info();
  
  // Initialize SyncState
  joggSyncState.init();
}
 

import com.jcraft.jogg.Page; //导入依赖的package包/类
/**
 * Initializes all the jOrbis and jOgg vars that are used for song playback.
 */
private void init_jorbis()
{
  oggSyncState_ = new SyncState();
  oggStreamState_ = new StreamState();
  oggPage_ = new Page();
  oggPacket_ = new Packet();
  vorbisInfo = new Info();
  vorbisComment = new Comment();
  vorbisDspState = new DspState();
  vorbisBlock = new Block(vorbisDspState);
  buffer = null;
  bytes = 0;
  oggSyncState_.init();
}
 

import com.jcraft.jogg.Page; //导入依赖的package包/类
/**
 * Initialize states.
 */
private void init() {
    ogg_sync_state = new SyncState();
    ogg_stream_state = new StreamState();
    ogg_page = new Page();
    ogg_packet = new Packet();

    vorbis_info = new Info();
    vorbis_comment = new Comment();
    vorbis_dsp_state = new DspState();
    vorbis_block = new Block(vorbis_dsp_state);

    ogg_sync_state.init();
}
 

import com.jcraft.jogg.Page; //导入依赖的package包/类
private int queue_page(Page page)
{
	if (theoraPage != 0)
		theoraState.pagein(page);
	if (vorbisPage != 0)
		vorbisState.pagein(page);
	return 0;
}
 

import com.jcraft.jogg.Page; //导入依赖的package包/类
/**
 * Initializes all the jOrbis and jOgg vars that are used for song playback.
 */
private void init_jorbis()
{
	m_oggSyncState = new SyncState();
	m_oggStreamState = new StreamState();
	m_oggPage = new Page();
	m_oggPacket = new Packet();

	m_vorbisInfo = new Info();
	m_vorbisComment = new Comment();
	m_vorbisDspState = new DspState();
	m_vorbisBlock = new Block(m_vorbisDspState);

	m_oggSyncState.init();
}
 

import com.jcraft.jogg.Page; //导入依赖的package包/类
/**
 * Bisect forward serial number.
 * @param begin beginning
 * @param searched searched
 * @param end end
 * @param currentno current number
 * @param m member
 * @return success flag OV_*
 */
int bisectForwardSerialno(long begin, long searched, long end,
		int currentno, int m) {
	long endsearched = end;
	long next = end;
	Page page = new Page();
	int ret;

	while (searched < endsearched) {
		long bisect;
		if (endsearched - searched < CHUNKSIZE) {
			bisect = searched;
		} else {
			bisect = (searched + endsearched) / 2;
		}

		seekHelper(bisect);
		ret = getNextPage(page, -1);
		if (ret == OV_EREAD) {
			return OV_EREAD;
		}
		if (ret < 0 || page.serialno() != currentno) {
			endsearched = bisect;
			if (ret >= 0) {
				next = ret;
			}
		} else {
			searched = ret + page.headerLen + page.bodyLen;
		}
	}
	seekHelper(next);
	ret = getNextPage(page, -1);
	if (ret == OV_EREAD) {
		return OV_EREAD;
	}

	if (searched >= end || ret == -1) {
		links = m + 1;
		offsets = new long[m + 2];
		offsets[m + 1] = searched;
	} else {
		ret = bisectForwardSerialno(next, offset, end, page.serialno(),
				m + 1);
		if (ret == OV_EREAD) {
			return OV_EREAD;
		}
	}
	offsets[m] = begin;
	return 0;
}
 

import com.jcraft.jogg.Page; //导入依赖的package包/类
/**
 * Uses the local ogg_stream storage in vf; this is important for
 * non-streaming input sources.
 * @param vi the info block
 * @param vc comment block
 * @param serialno serial numbers
 * @param ogPtr ogg pointer page
 * @return success codes OV_*
 */
int fetchHeaders(Info vi, Comment vc, int[] serialno, Page ogPtr) {
	Page og = new Page();
	Packet op = new Packet();
	int ret;

	if (ogPtr == null) {
		ret = getNextPage(og, CHUNKSIZE);
		if (ret == OV_EREAD) {
			return OV_EREAD;
		}
		if (ret < 0) {
			return OV_ENOTVORBIS;
		}
		ogPtr = og;
	}

	if (serialno != null) {
		serialno[0] = ogPtr.serialno();
	}

	os.init(ogPtr.serialno());

	// extract the initial header from the first page and verify that the
	// Ogg bitstream is in fact Vorbis data

	vi.init();
	vc.init();

	int i = 0;
	while (i < 3) {
		os.pagein(ogPtr);
		while (i < 3) {
			int result = os.packetout(op);
			if (result == 0) {
				break;
			}
			if (result == -1) {
				vi.clear();
				vc.clear();
				os.clear();
				return -1;
			}
			if (vi.synthesisHeaderin(vc, op) != 0) {
				vi.clear();
				vc.clear();
				os.clear();
				return -1;
			}
			i++;
		}
		if (i < 3) {
			if (getNextPage(ogPtr, 1) < 0) {
				vi.clear();
				vc.clear();
				os.clear();
				return -1;
			}
		}
	}
	return 0;
}
 

import com.jcraft.jogg.Page; //导入依赖的package包/类
/**
 * Last step of the OggVorbis_File initialization; get all the
 * vorbis_info structs and PCM positions. Only called by the seekable
 * initialization (local stream storage is hacked slightly; pay
 * attention to how that's done)
 * @param firstInfo first info
 * @param firstComment first comment
 * @param dataoffset data offset
 * @throws JOrbisException if an error occurs
 */
void prefetchAllHeaders(Info firstInfo, Comment firstComment, int dataoffset)
		throws JOrbisException {
	Page og = new Page();
	int ret;

	vi = new Info[links];
	vc = new Comment[links];
	dataoffsets = new long[links];
	pcmlengths = new long[links];
	serialnos = new int[links];

	for (int i = 0; i < links; i++) {
		if (firstInfo != null && firstComment != null && i == 0) {
			// we already grabbed the initial header earlier. This just
			// saves the waste of grabbing it again
			vi[i] = firstInfo;
			vc[i] = firstComment;
			dataoffsets[i] = dataoffset;
		} else {
			// seek to the location of the initial header
			seekHelper(offsets[i]); // !!!
			vi[i] = new Info();
			vc[i] = new Comment();
			if (fetchHeaders(vi[i], vc[i], null, null) == -1) {
				dataoffsets[i] = -1;
			} else {
				dataoffsets[i] = offset;
				os.clear();
			}
		}

		// get the serial number and PCM length of this link. To do this,
		// get the last page of the stream
		long end = offsets[i + 1]; // !!!
		seekHelper(end);

		while (true) {
			ret = getPrevPage(og);
			if (ret == -1) {
				// this should not be possible
				vi[i].clear();
				vc[i].clear();
				break;
			}
			if (og.granulepos() != -1) {
				serialnos[i] = og.serialno();
				pcmlengths[i] = og.granulepos();
				break;
			}
		}
	}
}