/*
* PS3 Media Server, for streaming any medias to your PS3.
* Copyright (C) 2008 A.Brochard
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; version 2
* of the License only.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package net.pms.io;
import net.pms.Messages;
import net.pms.PMS;
import net.pms.configuration.PmsConfiguration;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.text.DecimalFormat;
import java.util.ArrayList;
import java.util.Timer;
import java.util.TimerTask;
/**
* Circular memory buffer that can be used as {@link java.io.OutputStream OutputStream}
* and provides methods that can read data from the memory buffer using an
* {@link java.io.InputStream InputStream}. The name of this class is a bit
* misleading, as there is typically no file involved in the process at all.
* Instead, the buffer is typically used to hold data piped by a transcoding
* process in one thread until a request for data comes in from another thread.
*
* @see net.pms.io.ProcessWrapperImpl
* @see net.pms.network.Request Request
* @see net.pms.network.RequestV2 RequestV2
*/
public class BufferedOutputFileImpl extends OutputStream implements BufferedOutputFile {
private static final Logger logger = LoggerFactory.getLogger(BufferedOutputFileImpl.class);
private static final PmsConfiguration configuration = PMS.getConfiguration();
/**
* Initial size for the buffer in bytes.
* The current value is 50MB.
*/
private static final int INITIAL_BUFFER_SIZE = 50000000;
/**
* Amount of extra bytes to increase the initial buffer with when memory
* allocation fails.
*/
private static final int MARGIN_LARGE = 20000000;
private static final int MARGIN_MEDIUM = 2000000;
private static final int MARGIN_SMALL = 600000;
private static final int CHECK_INTERVAL = 500;
private static final int CHECK_END_OF_PROCESS = 2500; // must be superior to CHECK_INTERVAL
private int minMemorySize;
private int maxMemorySize;
private int bufferOverflowWarning;
private boolean eof;
private long writeCount;
private byte buffer[];
private boolean forcefirst = (configuration.getTrancodeBlocksMultipleConnections() && configuration.getTrancodeKeepFirstConnections());
private ArrayList<WaitBufferedInputStream> inputStreams;
private ProcessWrapper attachedThread;
private int secondread_minsize;
private Timer timer;
private boolean shiftScr;
private FileOutputStream debugOutput = null;
private boolean buffered = false;
private DecimalFormat formatter = new DecimalFormat("#,###");
private double timeseek;
private double timeend;
private long packetpos = 0;
/**
* Try to increase the size of a memory buffer, while retaining its
* contents. The provided new size is considered to be a request, it is
* scaled down when an OutOfMemory error occurs. There is no guarantee
* about the exact length of the returned byte array, only that it is
* greater than or equal to the original buffer size. When null is
* passed as an argument, a fresh buffer will be allocated. Copying one
* byte array to another is a costly operation, both in memory usage and
* performance. It is best to avoid using this method.
*
* @param buffer The byte array to resize, null is allowed.
* @param newSize The requested final size. Should be greater than the
* original size or the original buffer will be returned.
* @return The resized byte array.
*/
private byte[] growBuffer(byte[] buffer, int newSize) {
byte[] copy;
if (buffer == null) {
// Temporary empty array to avoid null tests in the code below
buffer = new byte[0];
}
if (newSize <= buffer.length) {
// Cannot shrink the original
return buffer;
}
try {
// Try to allocate the requested new size
copy = new byte[newSize];
} catch (OutOfMemoryError e) {
if (buffer.length == 0) {
logger.error("Cannot initialize buffer to " + formatter.format(newSize) + " bytes.", e);
} else {
logger.warn("Cannot grow buffer size from " + formatter.format(buffer.length) + " bytes to " + formatter.format(newSize) + " bytes.", e);
}
// Could not allocate the requested new size, use 30% of free memory instead.
// Rationale behind using 30%: multiple threads are running at the same time,
// we do not want one thread's memory usage to suffocate the others.
// Using maxMemory() to ignore the initial Java heap space size that freeMemory()
// takes into account.
// See http://javarevisited.blogspot.com/2011/05/java-heap-space-memory-size-jvm.html
long realisticSize = Runtime.getRuntime().maxMemory() * 3 / 10;
if (realisticSize < buffer.length) {
// A copy would be smaller in size, shrinking instead of growing the buffer.
// Better to return the original and retain its size.
return buffer;
} else {
try {
// Try to allocate the realistic alternative size
copy = new byte[(int) realisticSize];
} catch (OutOfMemoryError e2) {
logger.error("Cannot grow buffer size from " + formatter.format(buffer.length) + " bytes to " + formatter.format(realisticSize) + " bytes either.", e2);
logger.error("freeMemory: " + formatter.format(Runtime.getRuntime().freeMemory()));
logger.error("totalMemory: " + formatter.format(Runtime.getRuntime().totalMemory()));
logger.error("maxMemory: " + formatter.format(Runtime.getRuntime().maxMemory()));
// Cannot allocate memory, no other option than to return the original.
return buffer;
}
}
}
if (buffer.length == 0) {
logger.info("Successfully initialized buffer to " + formatter.format(copy.length) + " bytes.");
} else {
try {
System.arraycopy(buffer, 0, copy, 0, buffer.length);
logger.info("Successfully grown buffer from " + formatter.format(buffer.length) + " bytes to " + formatter.format(copy.length) + " bytes.");
} catch (Exception ex) {
logger.error("Cannot grow buffer size, error copying buffer contents.", ex);
}
}
return copy;
}
/**
* Constructor to create a memory buffer based on settings that are
* passed on. Will also start up a timer task to display buffer size and
* usage in the PMS main screen.
*
* @param params {@link OutputParams} object that contains preferences
* for the buffers dimensions and behavior.
*/
public BufferedOutputFileImpl(OutputParams params) {
this.minMemorySize = (int) (1048576 * params.minBufferSize);
this.maxMemorySize = (int) (1048576 * params.maxBufferSize);
// FIXME: Better to relate margin directly to maxMemorySize instead of using arbitrary fixed values
int margin = MARGIN_LARGE; // Issue 220: extends to 20Mb : readCount is wrongly set cause of the ps3's
// 2nd request with a range like 44-xxx, causing the end of buffer margin to be first sent
if (this.maxMemorySize < margin) {// for thumbnails / small buffer usage
margin = MARGIN_MEDIUM; // margin must be superior to the buffer size of OutputBufferConsumer or direct buffer size from WindowsNamedPipe class
if (this.maxMemorySize < margin) {
margin = MARGIN_SMALL;
}
}
this.bufferOverflowWarning = this.maxMemorySize - margin;
this.secondread_minsize = params.secondread_minsize;
this.timeseek = params.timeseek;
this.timeend = params.timeend;
this.shiftScr = params.shift_scr;
if ((maxMemorySize > INITIAL_BUFFER_SIZE) && !configuration.initBufferMax()) {
// Try to limit memory usage a bit.
// Start with a modest allocation initially, grow to max when needed later.
buffer = growBuffer(null, INITIAL_BUFFER_SIZE);
} else {
buffer = growBuffer(null, maxMemorySize);
}
if (buffer.length == 0) {
// Cannot transcode without a buffer
logger.info("FATAL ERROR: OutOfMemory / dumping stats");
logger.trace("freeMemory: " + Runtime.getRuntime().freeMemory());
logger.trace("totalMemory: " + Runtime.getRuntime().totalMemory());
logger.trace("maxMemory: " + Runtime.getRuntime().maxMemory());
System.exit(1);
}
inputStreams = new ArrayList<WaitBufferedInputStream>();
timer = new Timer();
if (params.maxBufferSize > 15 && !params.hidebuffer) {
timer.schedule(new TimerTask() {
@Override
public void run() {
long rc = 0;
if (getCurrentInputStream() != null) {
rc = getCurrentInputStream().getReadCount();
PMS.get().getFrame().setReadValue(rc, "");
}
long space = (writeCount - rc);
logger.trace("buffered: " + formatter.format(space) + " bytes / inputs: " + inputStreams.size());
// There are 1048576 bytes in a megabyte
long bufferInMBs = space / 1048576;
PMS.get().getFrame().setValue((int) (100 * space / maxMemorySize), formatter.format(bufferInMBs) + " " + Messages.getString("StatusTab.12"));
}
}, 0, 2000);
}
}
@Override
public void close() throws IOException {
logger.trace("EOF");
eof = true;
}
@Override
public WaitBufferedInputStream getCurrentInputStream() {
WaitBufferedInputStream wai = null;
if (inputStreams.size() > 0) {
try {
wai = forcefirst ? inputStreams.get(0) : inputStreams.get(inputStreams.size() - 1);
} catch (IndexOutOfBoundsException e) {
// this should never happen unless there's a concurrency issue,
// so log it if it does
logger.error("Unexpected input stream removal", e);
}
}
return wai;
}
@Override
public InputStream getInputStream(long newReadPosition) {
if (attachedThread != null) {
attachedThread.setReadyToStop(false);
}
WaitBufferedInputStream atominputStream;
if (!configuration.getTrancodeBlocksMultipleConnections() || getCurrentInputStream() == null) {
atominputStream = new WaitBufferedInputStream(this);
inputStreams.add(atominputStream);
} else {
if (configuration.getTrancodeKeepFirstConnections()) {
logger.debug("BufferedOutputFile is already attached to an InputStream: " + getCurrentInputStream());
} else {
// Ditlew - fixes the above (the above iterator breaks on items getting close, cause they will remove them self from the arraylist)
while (inputStreams.size() > 0) {
try {
inputStreams.get(0).close();
} catch (IOException e) {
logger.error("Error: ", e);
}
}
inputStreams.clear();
atominputStream = new WaitBufferedInputStream(this);
inputStreams.add(atominputStream);
logger.debug("Reassign inputstream: " + getCurrentInputStream());
}
return null;
}
if (newReadPosition > 0) {
logger.debug("Setting InputStream new position to: " + formatter.format(newReadPosition));
atominputStream.setReadCount(newReadPosition);
}
return atominputStream;
}
@Override
public long getWriteCount() {
return writeCount;
}
@Override
public void write(byte b[], int off, int len) throws IOException {
if (debugOutput != null) {
debugOutput.write(b, off, len);
debugOutput.flush();
}
WaitBufferedInputStream input = getCurrentInputStream();
//logger.trace("write(" + b.length + ", " + off + ", " + len + "), writeCount = " + writeCount + ", readCount = " + (input != null ? input.getReadCount() : "null"));
while ((input != null && (writeCount - input.getReadCount() > bufferOverflowWarning)) || (input == null && writeCount > bufferOverflowWarning)) {
try {
Thread.sleep(CHECK_INTERVAL);
} catch (InterruptedException e) {
}
input = getCurrentInputStream();
}
if (buffer != null) {
int mb = (int) (writeCount % maxMemorySize);
if (mb >= buffer.length - (len - off)) {
if (buffer.length == INITIAL_BUFFER_SIZE) {
// Initial buffer size was not big enough, try to increase it
buffer = growBuffer(buffer, maxMemorySize);
}
// FIXME: This smells like 2x System.arraycopy()!
int s = (len - off);
for (int i = 0; i < s; i++) {
buffer[modulo(mb + i, buffer.length)] = b[off + i];
}
} else {
System.arraycopy(b, off, buffer, mb, (len - off));
if ((len - off) > 0) {
buffered = true;
}
}
// Ditlew - WDTV Live
if (timeseek > 0 && writeCount > 10) {
for (int i = 0; i < len; i++) {
if (buffer != null && shiftScr) {
shiftSCRByTimeSeek(mb + i, (int) timeseek); // Ditlew - update any SCR headers
} //shiftGOPByTimeSeek(mb+i, (int)timeseek); // Ditlew - update any GOP headers - Not needed for WDTV Live
}
}
writeCount += len - off;
if (timeseek > 0 && timeend == 0) {
int packetLength = 6; // minimum to get packet size
while (packetpos + packetLength < writeCount && buffer != null) {
int packetposMB = (int) (packetpos % maxMemorySize);
int streamPos = 0;
if (buffer[modulo(packetposMB, buffer.length)] == 71) {// TS
packetLength = 188;
streamPos = 4;
// adaptation field
if ((buffer[modulo(packetposMB + 3, buffer.length)] & 0x20) == 0x20) {
streamPos += 1 + ((buffer[modulo(packetposMB + 4, buffer.length)] + 256) % 256);
}
if (streamPos == 188) {
streamPos = -1;
}
} else if (buffer[modulo(packetposMB + 3, buffer.length)] == -70) { // BA
packetLength = 14;
streamPos = -1;
} else {
packetLength = 6 + (((buffer[modulo(packetposMB + 4, buffer.length)] + 256) % 256)) * 256 + ((buffer[modulo(packetposMB + 5, buffer.length)] + 256) % 256);
}
if (streamPos != -1) {
mb = packetposMB + streamPos + 18;
if (!shiftVideo(mb, true)) {
mb = mb - 5;
shiftAudio(mb, true);
}
}
packetpos += packetLength;
}
}
}
}
/**
* Determine a modulo value that is guaranteed to be zero or positive,
* as opposed to the standard Java % operator which can return a
* negative value.
*
* @param number Number to divide
* @param divisor Number that is used to divide
* @return The rest value of the division.
*/
private int modulo(int number, int divisor) {
if (number >= 0) {
return number % divisor;
}
return ((number % divisor) + divisor) % divisor;
}
@Override
public void write(int b) throws IOException {
boolean bb = b % 100000 == 0;
WaitBufferedInputStream input = getCurrentInputStream();
while (bb && ((input != null && (writeCount - input.getReadCount() > bufferOverflowWarning)) || (input == null && writeCount == bufferOverflowWarning))) {
try {
Thread.sleep(CHECK_INTERVAL);
//logger.trace("BufferedOutputFile Full");
} catch (InterruptedException e) {
}
input = getCurrentInputStream();
}
int mb = (int) (writeCount++ % maxMemorySize);
if (buffer != null) {
buffer[mb] = (byte) b;
buffered = true;
if (writeCount == INITIAL_BUFFER_SIZE) {
buffer = growBuffer(buffer, maxMemorySize);
}
if (timeseek > 0 && writeCount > 19) {
shiftByTimeSeek(mb, mb <= 20);
}
// Ditlew - WDTV Live - update any SCR headers
if (timeseek > 0 && writeCount > 10) {
shiftSCRByTimeSeek(mb, (int) timeseek);
}
}
}
// Ditlew - Modify SCR
private void shiftSCRByTimeSeek(int buffer_index, int offset_sec) {
int m9 = modulo(buffer_index - 9, buffer.length);
int m8 = modulo(buffer_index - 8, buffer.length);
int m7 = modulo(buffer_index - 7, buffer.length);
int m6 = modulo(buffer_index - 6, buffer.length);
int m5 = modulo(buffer_index - 5, buffer.length);
int m4 = modulo(buffer_index - 4, buffer.length);
int m3 = modulo(buffer_index - 3, buffer.length);
int m2 = modulo(buffer_index - 2, buffer.length);
int m1 = modulo(buffer_index - 1, buffer.length);
int m0 = modulo(buffer_index, buffer.length);
// SCR
if (buffer[m9] == 0
&& buffer[m8] == 0
&& buffer[m7] == 1
&& buffer[m6] == -70 && // 0xBA - Java/PMS wants -70
// control bits
!((buffer[m5] & 128) == 128)
&& ((buffer[m5] & 64) == 64)
&& ((buffer[m5] & 4) == 4)
&& ((buffer[m3] & 4) == 4)
&& ((buffer[m1] & 4) == 4)
&& ((buffer[m0] & 1) == 1)) {
long scr_32_30 = ((buffer[m5] & 56) >> 3);
long scr_29_15 = ((buffer[m5] & 3) << 13) + (buffer[m4] << 5) + ((buffer[m3] & 248) >> 3);
long scr_14_00 = ((buffer[m3] & 3) << 13) + (buffer[m2] << 5) + ((buffer[m1] & 248) >> 3);
long scr = (scr_32_30 << 30) + (scr_29_15 << 15) + scr_14_00;
long scr_new = scr + (90000L * offset_sec);
long scr_32_30_new = (scr_new & 7516192768L) >> 30; // 111000000000000000000000000000000
long scr_29_15_new = (scr_new & 1073709056L) >> 15; // 000111111111111111000000000000000
long scr_14_00_new = (scr_new & 32767L); // 000000000000000000111111111111111
// scr_32_30_new
buffer[m5] = (byte) ((buffer[m5] & 199) + ((scr_32_30_new << 3) & 56)); // 11000111
// scr_29_15_new
buffer[m5] = (byte) ((buffer[m5] & 252) + ((scr_29_15_new >> 13) & 3)); // 00000011
buffer[m4] = (byte) (scr_29_15_new >> 5); // 11111111
buffer[m3] = (byte) ((buffer[m3] & 7) + ((scr_29_15_new << 3) & 248)); // 11111000
// scr_14_00_new
buffer[m3] = (byte) ((buffer[m3] & 252) + ((scr_14_00_new >> 13) & 3)); // 00000011
buffer[m2] = (byte) (scr_14_00_new >> 5); // 11111111
buffer[m1] = (byte) ((buffer[m1] & 7) + ((scr_14_00_new << 3) & 248)); // 11111000
// Debug
//logger.trace("Ditlew - SCR "+scr+" ("+(int)(scr/90000)+") -> "+scr_new+" ("+(int)(scr_new/90000)+") "+offset_sec+" secs");
}
}
// Ditlew - Modify GOP
@SuppressWarnings("unused")
private void shiftGOPByTimeSeek(int buffer_index, int offset_sec) {
int m7 = modulo(buffer_index - 7, buffer.length);
int m6 = modulo(buffer_index - 6, buffer.length);
int m5 = modulo(buffer_index - 5, buffer.length);
int m4 = modulo(buffer_index - 4, buffer.length);
int m3 = modulo(buffer_index - 3, buffer.length);
int m2 = modulo(buffer_index - 2, buffer.length);
int m1 = modulo(buffer_index - 1, buffer.length);
int m0 = modulo(buffer_index, buffer.length);
// check if valid gop
if (buffer[m7] == 0
&& buffer[m6] == 0
&& buffer[m5] == 1
&& buffer[m4] == -72 && // 0xB8 - Java/PMS wants -72
// control bits
((buffer[m2] & 0x08) == 0x08)
&& ((buffer[m0] & 31) == 0)
&& // of interest
!((buffer[m3] & 128) == 128) && // not drop frm
!((buffer[m0] & 16) == 16) // not broken
) {
// org timecode
byte h = (byte) ((buffer[m3] & 124) >> 2);
byte m = (byte) (((buffer[m3] & 3) << 4) + ((buffer[m2] & 240) >> 4));
byte s = (byte) (((buffer[m2] & 7) << 3) + ((buffer[m1] & 224) >> 5));
// updated offset
int _offset = s + m * 60 + h * 60 + offset_sec;
// new timecode
byte _h = (byte) ((_offset / 3600) % 24);
byte _m = (byte) ((_offset / 60) % 60);
byte _s = (byte) (_offset % 60);
// update gop
// h - ok
buffer[m3] = (byte) ((buffer[m3] & 131) + (_h << 2)); // 10000011
// m - ok
buffer[m3] = (byte) ((buffer[m3] & 252) + (_m >> 4)); // 11111100
buffer[m2] = (byte) ((buffer[m2] & 15) + (_m << 4)); // 00001111
// s - ok
buffer[m2] = (byte) ((buffer[m2] & 248) + (_s >> 3)); // 11111000
buffer[m1] = (byte) ((buffer[m1] & 31) + (_s << 5)); // 00011111
// Debug
//logger.trace("Ditlew - GOP "+h+":"+m+":"+s+" -> "+_h+":"+_m+":"+_s+" "+offset_sec+" secs");
}
}
private void shiftByTimeSeek(int mb, boolean mod) {
shiftVideo(mb, mod);
shiftAudio(mb, mod);
}
private boolean shiftAudio(int mb, boolean mod) {
boolean bb = (!mod && (buffer[mb - 10] == -67 || buffer[mb - 10] == -64) && buffer[mb - 11] == 1 && buffer[mb - 12] == 0 && buffer[mb - 13] == 0 && /*(buffer[mb-7]&128)==128 &&*/ (buffer[mb - 6] & 128) == 128/*buffer[mb-6] == -128*/)
|| (mod && (buffer[modulo(mb - 10, buffer.length)] == -67 || buffer[modulo(mb - 10, buffer.length)] == -64) && buffer[modulo(mb - 11, buffer.length)] == 1 && buffer[modulo(mb - 12, buffer.length)] == 0 && buffer[modulo(mb - 13, buffer.length)] == 0 && /*(buffer[modulo(mb-7)]&128)==128 && */ (buffer[modulo(mb - 6, buffer.length)] & 128) == 128/*buffer[modulo(mb-6, buffer.length)] == -128*/);
if (bb) {
int pts = (((((buffer[modulo(mb - 3, buffer.length)] & 0xff) << 8) + (buffer[modulo(mb - 2, buffer.length)] & 0xff)) >> 1) << 15) + ((((buffer[modulo(mb - 1, buffer.length)] & 0xff) << 8) + (buffer[modulo(mb, buffer.length)] & 0xff)) >> 1);
pts += (int) (timeseek * 90000);
setTS(pts, mb, mod);
return true;
}
return false;
}
private boolean shiftVideo(int mb, boolean mod) {
boolean bb = (!mod
&& (buffer[mb - 15] == -32 || buffer[mb - 15] == -3)
&& buffer[mb - 16] == 1
&& buffer[mb - 17] == 0
&& buffer[mb - 18] == 0
&& (buffer[mb - 11] & 128) == 128
&& (buffer[mb - 9] & 32) == 32) || (mod
&& (buffer[modulo(mb - 15, buffer.length)] == -32 || buffer[modulo(mb - 15, buffer.length)] == -3)
&& buffer[modulo(mb - 16, buffer.length)] == 1
&& buffer[modulo(mb - 17, buffer.length)] == 0
&& buffer[modulo(mb - 18, buffer.length)] == 0
&& (buffer[modulo(mb - 11, buffer.length)] & 128) == 128
&& (buffer[modulo(mb - 9, buffer.length)] & 32) == 32);
if (bb) { // check EO or FD (tsMuxeR)
int pts = getTS(mb - 5, mod);
int dts = 0;
boolean dts_present = (buffer[modulo(mb - 11, buffer.length)] & 64) == 64;
if (dts_present) {
if ((buffer[modulo(mb - 4, buffer.length)] & 15) == 15) {
dts = (((((255 - (buffer[modulo(mb - 3, buffer.length)] & 0xff)) << 8) + (255 - (buffer[modulo(mb - 2, buffer.length)] & 0xff))) >> 1) << 15) + ((((255 - (buffer[modulo(mb - 1, buffer.length)] & 0xff)) << 8) + (255 - (buffer[modulo(mb, buffer.length)] & 0xff))) >> 1);
dts = -dts;
} else {
dts = getTS(mb, mod);
}
}
int ts = (int) (timeseek * 90000);
if (mb == 50 && writeCount < maxMemorySize) {
dts--;
}
pts += ts;
setTS(pts, mb - 5, mod);
if (dts_present) {
if (dts < 0) {
buffer[modulo(mb - 4, buffer.length)] = 17;
}
dts += ts;
setTS(dts, mb, mod);
}
return true;
}
return false;
}
private int getTS(int mb, boolean modulo) {
int m3 = mb - 3;
int m2 = mb - 2;
int m1 = mb - 1;
int m0 = mb;
if (modulo) {
m3 = modulo(m3, buffer.length);
m2 = modulo(m2, buffer.length);
m1 = modulo(m1, buffer.length);
m0 = modulo(m0, buffer.length);
}
return (((((buffer[m3] & 0xff) << 8) + (buffer[m2] & 0xff)) >> 1) << 15)
+ ((((buffer[m1] & 0xff) << 8) + (buffer[m0] & 0xff)) >> 1);
}
private void setTS(int ts, int mb, boolean modulo) {
int m3 = mb - 3;
int m2 = mb - 2;
int m1 = mb - 1;
int m0 = mb;
if (modulo) {
m3 = modulo(m3, buffer.length);
m2 = modulo(m2, buffer.length);
m1 = modulo(m1, buffer.length);
m0 = modulo(m0, buffer.length);
}
int pts_low = ts & 32767;
int pts_high = (ts >> 15) & 32767;
int pts_left_low = 1 + (pts_low << 1);
int pts_left_high = 1 + (pts_high << 1);
buffer[m3] = (byte) ((pts_left_high & 65280) >> 8);
buffer[m2] = (byte) (pts_left_high & 255);
buffer[m1] = (byte) ((pts_left_low & 65280) >> 8);
buffer[m0] = (byte) (pts_left_low & 255);
}
@Override
public int read(boolean firstRead, long readCount, byte buf[], int off, int len) {
if (readCount > INITIAL_BUFFER_SIZE && readCount < maxMemorySize) {
int newMargin = maxMemorySize - MARGIN_MEDIUM;
if (bufferOverflowWarning != newMargin) {
logger.debug("Setting margin to 2Mb");
}
this.bufferOverflowWarning = newMargin;
}
if (eof && readCount >= writeCount) {
return -1;
}
int c = 0;
int minBufferS = firstRead ? minMemorySize : secondread_minsize;
while (writeCount - readCount <= minBufferS && !eof && c < 15) {
if (c == 0) {
logger.trace("Suspend Read: readCount=" + readCount + " / writeCount=" + writeCount);
}
c++;
try {
Thread.sleep(CHECK_INTERVAL);
} catch (InterruptedException e) {
}
}
if (attachedThread != null) {
attachedThread.setReadyToStop(false);
}
if (c > 0) {
logger.trace("Resume Read: readCount=" + readCount + " / writeCount=" + writeCount);
}
if (buffer == null || !buffered) {
return -1;
}
int mb = (int) (readCount % maxMemorySize);
int endOF = buffer.length;
int cut = 0;
if (eof && (writeCount - readCount) < len) {
cut = (int) (len - (writeCount - readCount));
}
if (mb >= endOF - len) {
try {
System.arraycopy(buffer, mb, buf, off, endOF - mb - cut);
} catch (ArrayIndexOutOfBoundsException ex) {
logger.error("Something went wrong with the buffer.", ex);
logger.error("buffer.length: " + formatter.format(buffer.length) + " bytes.");
logger.error("mb: " + mb);
logger.error("buf.length: " + formatter.format(buf.length) + " bytes.");
logger.error("off: " + off);
logger.error("endOF - mb - cut: " + (endOF - mb - cut));
}
return endOF - mb;
} else {
System.arraycopy(buffer, mb, buf, off, len - cut);
return len;
}
}
@Override
public int read(boolean firstRead, long readCount) {
if (readCount > INITIAL_BUFFER_SIZE && readCount < maxMemorySize) {
int newMargin = maxMemorySize - MARGIN_MEDIUM;
if (bufferOverflowWarning != newMargin) {
logger.debug("Setting margin to 2Mb");
}
this.bufferOverflowWarning = newMargin;
}
if (eof && readCount >= writeCount) {
return -1;
}
int c = 0;
int minBufferS = firstRead ? minMemorySize : secondread_minsize;
while (writeCount - readCount <= minBufferS && !eof && c < 15) {
if (c == 0) {
logger.trace("Suspend Read: readCount=" + readCount + " / writeCount=" + writeCount);
}
c++;
try {
Thread.sleep(CHECK_INTERVAL);
} catch (InterruptedException e) {
}
}
if (attachedThread != null) {
attachedThread.setReadyToStop(false);
}
if (c > 0) {
logger.trace("Resume Read: readCount=" + readCount + " / writeCount=" + writeCount);
}
if (buffer == null || !buffered) {
return -1;
}
try {
return 0xff & buffer[(int) (readCount % maxMemorySize)];
} catch (ArrayIndexOutOfBoundsException ex) {
logger.error("Buffer read ArrayIndexOutOfBoundsException error.", ex);
logger.error("buffer.length: " + formatter.format(buffer.length) + " bytes.");
logger.error("readCount: \"" + readCount + "\"");
logger.error("maxMemorySize: \"" + maxMemorySize + "\"");
return -1;
}
}
@Override
public void attachThread(ProcessWrapper thread) {
if (attachedThread != null) {
throw new RuntimeException("BufferedOutputFile is already attached to a Thread: " + attachedThread);
}
logger.debug("Attaching thread: " + thread);
attachedThread = thread;
}
@Override
public void removeInputStream(WaitBufferedInputStream inputStream) {
inputStreams.remove(inputStream);
}
@Override
public void detachInputStream() {
PMS.get().getFrame().setReadValue(0, "");
if (attachedThread != null) {
attachedThread.setReadyToStop(true);
}
Runnable checkEnd = new Runnable() {
@Override
public void run() {
try {
Thread.sleep(CHECK_END_OF_PROCESS);
} catch (InterruptedException e) {
logger.error(null, e);
}
if (attachedThread != null && attachedThread.isReadyToStop()) {
if (!attachedThread.isDestroyed()) {
attachedThread.stopProcess();
}
reset();
}
}
};
new Thread(checkEnd, "Buffered IO End Checker").start();
}
@Override
public synchronized void reset() {
if (debugOutput != null) {
try {
debugOutput.close();
} catch (IOException ex) {
logger.warn("Caught exception", ex);
}
}
timer.cancel();
if (buffer != null) {
logger.info("Destroying buffer");
buffer = null;
}
buffered = false;
if (maxMemorySize != 1048576) {
PMS.get().getFrame().setValue(0, Messages.getString("StatusTab.5"));
}
}
}