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Viewing changes to mpeglib/lib/output/threadSafeOutputStream.cpp

  • Committer: Bazaar Package Importer
  • Author(s): Martin Schulze
  • Date: 2003-01-22 15:00:51 UTC
  • Revision ID: james.westby@ubuntu.com-20030122150051-uihwkdoxf15mi1tn
Tags: upstream-2.2.2
Import upstream version 2.2.2

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mpeglib/lib/output/threadSafeOutputStream.cpp
 
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/*
 
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  thread safe wrapper for output Stream
 
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  Copyright (C) 2000  Martin Vogt
 
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  This program is free software; you can redistribute it and/or modify
 
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  it under the terms of the GNU Library General Public License as published by
 
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  the Free Software Foundation.
 
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  For more information look at the file COPYRIGHT in this package
 
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 */
 
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#include "threadSafeOutputStream.h"
 
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ThreadSafeOutputStream::ThreadSafeOutputStream(OutputStream* output) {
 
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  threadQueueAudio=new ThreadQueue();
 
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  threadQueueVideo=new ThreadQueue();
 
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  this->output=output;
 
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}
 
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ThreadSafeOutputStream::~ThreadSafeOutputStream() {
 
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  delete threadQueueAudio;
 
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  delete threadQueueVideo;
 
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  delete output;
 
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}
 
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int ThreadSafeOutputStream::audioInit() {
 
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  int back;
 
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  threadQueueAudio->waitForExclusiveAccess();
 
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  back=output->audioInit();
 
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  threadQueueAudio->releaseExclusiveAccess();
 
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  return back;
 
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}
 
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int ThreadSafeOutputStream::audioSetup(int freq,int stereo,
 
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                                       int sign,int big,int sampleSize) {
 
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  int back;
 
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  threadQueueAudio->waitForExclusiveAccess();
 
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  back=output->audioSetup(freq,stereo,sign,big,sampleSize);
 
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  threadQueueAudio->releaseExclusiveAccess();
 
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  return back; 
 
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}
 
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int ThreadSafeOutputStream::audioPlay(TimeStamp* start,
 
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                                      TimeStamp* end,char* buf, int len) {
 
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  int back;
 
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  threadQueueAudio->waitForExclusiveAccess();
 
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  back=output->audioPlay(start,end,buf,len);
 
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  threadQueueAudio->releaseExclusiveAccess();
 
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  return back;
 
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}
 
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void ThreadSafeOutputStream::audioFlush() {
 
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  threadQueueAudio->waitForExclusiveAccess();
 
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  output->audioFlush();
 
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  threadQueueAudio->releaseExclusiveAccess(); 
 
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}
 
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void ThreadSafeOutputStream::audioClose() {
 
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  threadQueueAudio->waitForExclusiveAccess();
 
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  output->audioClose();
 
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  threadQueueAudio->releaseExclusiveAccess();  
 
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}
 
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void ThreadSafeOutputStream::audioOpen() {
 
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 threadQueueAudio->waitForExclusiveAccess();
 
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 output->audioOpen();
 
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 threadQueueAudio->releaseExclusiveAccess();    
 
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}
 
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int ThreadSafeOutputStream::getPreferredDeliverSize() {
 
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  int back;
 
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  threadQueueAudio->waitForExclusiveAccess();
 
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  back=output->getPreferredDeliverSize();
 
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  threadQueueAudio->releaseExclusiveAccess();
 
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  return back;  
 
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}
 
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int ThreadSafeOutputStream::videoInit() {
 
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  int back;
 
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  threadQueueVideo->waitForExclusiveAccess();
 
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  back=output->videoInit();
 
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  threadQueueVideo->releaseExclusiveAccess();
 
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  return back; 
 
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}
 
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int ThreadSafeOutputStream::openWindow(int w, int h,const char* title) {
 
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  int back;
 
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  threadQueueVideo->waitForExclusiveAccess();
 
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  back=output->openWindow(w,h,title);
 
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  threadQueueVideo->releaseExclusiveAccess();
 
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  return back; 
 
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}
 
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void ThreadSafeOutputStream::closeWindow() {
 
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  threadQueueVideo->waitForExclusiveAccess();
 
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  output->closeWindow();
 
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  threadQueueVideo->releaseExclusiveAccess();
 
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}
 
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void ThreadSafeOutputStream::flushWindow() {
 
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  threadQueueVideo->waitForExclusiveAccess();
 
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  output->flushWindow();
 
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  threadQueueVideo->releaseExclusiveAccess(); 
 
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} 
 
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PictureArray* ThreadSafeOutputStream::lockPictureArray() {
 
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  PictureArray* back;
 
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  threadQueueVideo->waitForExclusiveAccess();
 
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  back=output->lockPictureArray();
 
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  threadQueueVideo->releaseExclusiveAccess();
 
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  return back; 
 
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}
 
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void ThreadSafeOutputStream::unlockPictureArray(PictureArray* array) {
 
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  threadQueueVideo->waitForExclusiveAccess();
 
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  output->unlockPictureArray(array);
 
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  threadQueueVideo->releaseExclusiveAccess();
 
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}
 
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int ThreadSafeOutputStream::getFrameusec() {
 
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  int back;
 
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  threadQueueVideo->waitForExclusiveAccess();
 
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  back=output->getFrameusec();
 
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  threadQueueVideo->releaseExclusiveAccess();
 
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  return back;  
 
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}
 
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void ThreadSafeOutputStream::config(const char* key,
 
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                                    const char* value,void* user_data) {
 
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  threadQueueVideo->waitForExclusiveAccess();
 
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  threadQueueAudio->waitForExclusiveAccess();
 
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  output->config(key,value,user_data);
 
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  threadQueueVideo->releaseExclusiveAccess();
 
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  threadQueueAudio->releaseExclusiveAccess();
 
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}
 
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