Happy New Year (for some of you).
I have now installed a new version (2010.12.31) of the "LIVE555
Streaming Media" code that supports 'trick play' operations (seeking,
fast-forward, reverse play) on MPEG Transport Stream files that
contain H.264 video (rather than just MPEG-2 video, as in previous
versions).
To support this, the index file format has been extended in a
backwards-compatible way, so that your existing index files - for
MPEG-2 video Transport Streams - will continue to work as before.
To create an index file for H.264 Transport Streams - and to act as a
server for such streams - you will, of course, need to download the
new code. I have also released new binary versions of the
"MPEG2TransportStreamIndexer" and "testMPEG2TransportStreamTrickPlay"
utilities, and the "live555MediaServer" - for Windows, MacOS/Intel,
FreeBSD, and Linux/Intel.
The new code has been tested for only a few H.264 Transport Stream
files, and might not work properly for all such files. (In
particular, it relies upon a SPS (Sequence Parameter Set) NAL unit
appearing shortly before each 'I-frame'.) As always, if you have an
example of a Transport Stream file for which the indexing (or
subsequent trick play) does *not* work, then please put the file on a
web server, and send a link to the file (*not* the file itself) to
the mailing list, and we'll examine it to see if we can figure out
the problem.
--
Ross Finlayson
Live Networks, Inc.
http://www.live555.com/
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