optional fuzzing support

[enigma2.git] / lib / dvb / demux.cpp

diff --git a/lib/dvb/demux.cpp b/lib/dvb/demux.cpp
index 810b10a5983604b65f6c4940546666ba43d34d0f..11465186c35a447594e70935560e2275d9b3e5cd 100644 (file)
--- a/lib/dvb/demux.cpp
+++ b/lib/dvb/demux.cpp
@@ -5,6 +5,13 @@
 #include <unistd.h>
 #include <signal.h>
 
+// #define FUZZING 1
+
+#if FUZZING
+               /* change every 1:FUZZING_PROPABILITY byte */
+#define FUZZING_PROPABILITY 100
+#endif
+
 #if HAVE_DVB_API_VERSION < 3
 #include <ost/dmx.h>
 
@@ -178,6 +185,14 @@ void eDVBSectionReader::data(int)
        __u8 data[4096]; // max. section size
        int r;
        r = ::read(fd, data, 4096);
+#if FUZZING
+       int j;
+       for (j = 0; j < r; ++j)
+       {
+               if (!(rand()%FUZZING_PROPABILITY))
+                       data[j] ^= rand();
+       }
+#endif 
        if(r < 0)
        {
                eWarning("ERROR reading section - %m\n");
@@ -243,11 +258,13 @@ RESULT eDVBSectionReader::start(const eDVBSectionFilterMask &mask)
 #else
        sct.flags   = DMX_IMMEDIATE_START;
 #endif
+#if !FUZZING
        if (mask.flags & eDVBSectionFilterMask::rfCRC)
        {
                sct.flags |= DMX_CHECK_CRC;
                checkcrc = 1;
        } else
+#endif
                checkcrc = 0;
        
        memcpy(sct.filter.filter, mask.data, DMX_FILTER_SIZE);
@@ -402,9 +419,10 @@ class eDVBRecordFileThread: public eFilePushThread
 {
 public:
        eDVBRecordFileThread();
-       void setTimingPID(int pid);
+       void setTimingPID(int pid, int type);
        
-       void saveTimingInformation(const std::string &filename);
+       void startSaveMetaInformation(const std::string &filename);
+       void stopSaveMetaInformation();
        int getLastPTS(pts_t &pts);
 protected:
        int filterRecordData(const unsigned char *data, int len, size_t &current_span_remaining);
@@ -422,14 +440,19 @@ eDVBRecordFileThread::eDVBRecordFileThread()
        m_current_offset = 0;
 }
 
-void eDVBRecordFileThread::setTimingPID(int pid)
+void eDVBRecordFileThread::setTimingPID(int pid, int type)
 {
-       m_ts_parser.setPid(pid);
+       m_ts_parser.setPid(pid, type);
 }
 
-void eDVBRecordFileThread::saveTimingInformation(const std::string &filename)
+void eDVBRecordFileThread::startSaveMetaInformation(const std::string &filename)
 {
-       m_stream_info.save(filename.c_str());
+       m_stream_info.startSave(filename.c_str());
+}
+
+void eDVBRecordFileThread::stopSaveMetaInformation()
+{
+       m_stream_info.stopSave();
 }
 
 int eDVBRecordFileThread::getLastPTS(pts_t &pts)
@@ -520,6 +543,9 @@ RESULT eDVBTSRecorder::start()
        ::ioctl(m_source_fd, DMX_START);
        
 #endif
+
+       if (m_target_filename != "")
+               m_thread->startSaveMetaInformation(m_target_filename);
        
        m_thread->start(m_source_fd, m_target_fd);
        m_running = 1;
@@ -553,11 +579,11 @@ RESULT eDVBTSRecorder::removePID(int pid)
        return 0;
 }
 
-RESULT eDVBTSRecorder::setTimingPID(int pid)
+RESULT eDVBTSRecorder::setTimingPID(int pid, int type)
 {
        if (m_running)
                return -1;
-       m_thread->setTimingPID(pid);
+       m_thread->setTimingPID(pid, type);
        return 0;
 }
 
@@ -590,8 +616,7 @@ RESULT eDVBTSRecorder::stop()
        close(m_source_fd);
        m_source_fd = -1;
        
-       if (m_target_filename != "")
-               m_thread->saveTimingInformation(m_target_filename + ".ap");
+       m_thread->stopSaveMetaInformation();
        
        return 0;
 }