m_begin_valid = 0;
m_end_valid = 0;
+
+ m_use_streaminfo = 0;
}
eDVBTSTools::~eDVBTSTools()
int eDVBTSTools::openFile(const char *filename)
{
closeFile();
+
+ m_streaminfo.load((std::string(filename) + ".ap").c_str());
+
+ if (!m_streaminfo.empty())
+ m_use_streaminfo = 1;
+ else
+ {
+ eDebug("no recorded stream information available");
+ m_use_streaminfo = 0;
+ }
+
m_fd = ::open(filename, O_RDONLY);
if (m_fd < 0)
return -1;
}
/* getPTS extracts a pts value from any PID at a given offset. */
-int eDVBTSTools::getPTS(off_t &offset, pts_t &pts)
+int eDVBTSTools::getPTS(off_t &offset, pts_t &pts, int fixed)
{
+ if (m_use_streaminfo)
+ return m_streaminfo.getPTS(offset, pts);
+
if (m_fd < 0)
return -1;
{
unsigned char block[188];
if (read(m_fd, block, 188) != 188)
+ {
+ eDebug("read error");
break;
+ }
left -= 188;
offset += 188;
pts |= ((unsigned long long)(pes[12]&0xFF)) << 7;
pts |= ((unsigned long long)(pes[13]&0xFE)) >> 1;
offset -= 188;
+
+ /* convert to zero-based */
+ if (fixed)
+ fixupPTS(offset, pts);
return 0;
}
}
return -1;
}
+int eDVBTSTools::fixupPTS(const off_t &offset, pts_t &now)
+{
+ if (m_use_streaminfo)
+ {
+ return m_streaminfo.fixupPTS(offset, now);
+ } else
+ {
+ /* for the simple case, we assume one epoch, with up to one wrap around in the middle. */
+ calcBegin();
+ if (!m_begin_valid)
+ {
+ eDebug("begin not valid, can't fixup");
+ return -1;
+ }
+
+ pts_t pos = m_pts_begin;
+ if ((now < pos) && ((pos - now) < 90000 * 10))
+ {
+ pos = 0;
+ return 0;
+ }
+
+ if (now < pos) /* wrap around */
+ now = now + 0x200000000LL - pos;
+ else
+ now -= pos;
+ return 0;
+ }
+}
+
+int eDVBTSTools::getOffset(off_t &offset, pts_t &pts)
+{
+ if (m_use_streaminfo)
+ {
+ offset = m_streaminfo.getAccessPoint(pts);
+ return 0;
+ } else
+ {
+ int bitrate = calcBitrate(); /* in bits/s */
+ if (bitrate <= 0)
+ return -1;
+
+ offset = (pts * (pts_t)bitrate) / 8ULL / 90000ULL;
+ offset -= offset % 188;
+
+ return 0;
+ }
+}
+
+int eDVBTSTools::getNextAccessPoint(pts_t &ts, const pts_t &start, int direction)
+{
+ if (m_use_streaminfo)
+ return m_streaminfo.getNextAccessPoint(ts, start, direction);
+ else
+ {
+ eDebug("can't get next access point without streaminfo");
+ return -1;
+ }
+}
+
void eDVBTSTools::calcBegin()
{
if (m_fd < 0)
if (!(m_begin_valid && m_end_valid))
return -1;
len = m_pts_end - m_pts_begin;
+ /* wrap around? */
+ if (len < 0)
+ len += 0x200000000LL;
return 0;
}
return -1;
pts_t len_in_pts = m_pts_end - m_pts_begin;
+
+ /* wrap around? */
+ if (len_in_pts < 0)
+ len_in_pts += 0x200000000LL;
off_t len_in_bytes = m_offset_end - m_offset_begin;
if (!len_in_pts)