diff options
Diffstat (limited to 'lib/dvb/tstools.cpp')
| -rw-r--r-- | lib/dvb/tstools.cpp | 25 |
1 files changed, 22 insertions, 3 deletions
diff --git a/lib/dvb/tstools.cpp b/lib/dvb/tstools.cpp index 1403059f..9b47f9b8 100644 --- a/lib/dvb/tstools.cpp +++ b/lib/dvb/tstools.cpp @@ -700,9 +700,26 @@ int eDVBTSTools::findFrame(off_t &_offset, size_t &len, int &direction, int fram else if (direction == +1) direction = 0; } - /* let's find the next frame after the given offset */ off_t start = offset; +#if 0 + /* backtrack to find the previous sequence start, in case of MPEG2 */ + if ((data & 0xFF) == 0x00) { + do { + --start; + if (m_streaminfo.getStructureEntry(start, data, 0)) + { + eDebug("get previous failed"); + return -1; + } + } while (((data & 0xFF) != 9) && ((data & 0xFF) != 0x00) && ((data & 0xFF) != 0xB3)); /* sequence start or previous frame */ + if ((data & 0xFF) != 0xB3) + start = offset; /* Failed to find corresponding sequence start, so never mind */ + } + +#endif + + /* let's find the next frame after the given offset */ do { if (m_streaminfo.getStructureEntry(offset, data, 1)) { @@ -717,9 +734,11 @@ int eDVBTSTools::findFrame(off_t &_offset, size_t &len, int &direction, int fram // eDebug("%08llx@%llx (next)", data, offset); } while (((data & 0xFF) != 9) && ((data & 0xFF) != 0x00)); /* next frame */ +#if 0 /* align to TS pkt start */ -// start = start - (start % 188); -// offset = offset - (offset % 188); + start = start - (start % 188); + offset = offset - (offset % 188); +#endif len = offset - start; _offset = start; |