fix pts relative seeking, make pts_t signed

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

diff --git a/lib/dvb/dvb.cpp b/lib/dvb/dvb.cpp
index 78cef639263b79046176c181e29618e52146ac1f..ed972bf1d0d2fd7ab9522e480cecd3ec945f2efc 100644 (file)
--- a/lib/dvb/dvb.cpp
+++ b/lib/dvb/dvb.cpp
@@ -618,27 +618,34 @@ RESULT eDVBChannel::getCurrentPosition(pts_t &pos)
        return 0;
 }
 
-RESULT eDVBChannel::seekTo(pts_t &pts)
+RESULT eDVBChannel::seekTo(int relative, pts_t &pts)
 {
-#if 0
-       eDebug("eDVBChannel: seekTo .. %llx", pts);
-       m_pvr_thread->pause();
-       if (m_decoder_demux)
-               m_decoder_demux->get().flush();
-               /* demux will also flush all decoder.. */
+       int bitrate = m_tstools.calcBitrate(); /* in bits/s */
        
-       off_t r;
+       if (bitrate == -1)
+               return -1;
        
-       if (!m_tstools.getPosition(pts, r));
-               m_pvr_thread->seek(r);
-       else
-               eDebug("getPosition failed!");
-       m_pvr_thread->resume();
-#endif
+       if (relative)
+       {
+               pts_t now;
+               if (getCurrentPosition(now))
+               {
+                       eDebug("seekTo: getCurrentPosition failed!");
+                       return -1;
+               }
+               pts += now;
+       }
+       
+       if (pts < 0)
+               pts = 0;
+       
+       off_t offset = (pts * (pts_t)bitrate) / 8ULL / 90000ULL;
+       
+       seekToPosition(offset);
        return 0;
 }
 
-RESULT eDVBChannel::seekToPosition(int relative, const off_t &r)
+RESULT eDVBChannel::seekToPosition(const off_t &r)
 {
                        /* when seeking, we have to ensure that all buffers are flushed.
                           there are basically 3 buffers:
@@ -664,7 +671,7 @@ RESULT eDVBChannel::seekToPosition(int relative, const off_t &r)
                m_decoder_demux->get().flush();
 
                /* demux will also flush all decoder.. */
-       m_pvr_thread->seek(relative ? SEEK_CUR : SEEK_SET, r);
+       m_pvr_thread->seek(SEEK_SET, r);
        m_pvr_thread->resume();
        return 0;
 }