Hi,
I think that Michael wants to have somekind of DVR functionality in RTSP
which is not supported i think.
Marcin
W dniu 2014-11-18 16:42, Chapman, Michael J pisze:
Sorry I didn't clarify this in an earlier post, but one of the goals
we were hoping to achieve is the ability to have any rtsp client able
to connect to our Media Server and perform these commands. So, we were
hoping to not have to develop and use a custom client if possible. For
instance, having VLC player (merely as an example) connect to our
Media Server and perform the near-real time trick play. I hope that
makes sense and better clarifies our goal. That is why we are looking
into the tsx file generation possibilities.
Thank you,
Michael Chapman
*From:*live-devel [mailto:live-devel-boun...@ns.live555.com] *On
Behalf Of *Jeff Shanab
*Sent:* Monday, November 17, 2014 9:09 AM
*To:* LIVE555 Streaming Media - development & use
*Subject:* Re: [Live-devel] EXTERNAL: Re: Creating live tsx file or
Updating existing TSX file
That seems similar to security video and if it is really just the
recent past, can be done entirely in the client. It may be preferred
for the smooth transition from now to recent-past and back to realtime.
Note: You would only cache uncompressed video. I maintained 2 gops
worth decoded and the rest however many seconds configured.
( I had my own http based server that served out gops of video so I
could play both directions and have random access to the video. I only
put things in containers on "export" I streamed to a player of my own
design so I was not streaming rtsp, I streamed multiple protocols
including my own http one from the same rtsp input. A bit odd, but it
worked)
On Mon, Nov 17, 2014 at 10:44 AM, Chapman, Michael J
<michael.j.chap...@lmco.com <mailto:michael.j.chap...@lmco.com>> wrote:
Ross,
The video streams we are dealing with for our project mainly involve
Unmanned Aerial Vehicle (UAV) video footage which comes to us as a
video stream over the network. Due to the nature of the video, we need
to be able to view it as soon as possible. We have an option to view
it live from the source (non-rtsp approach with no trick play
features) and we also want to be able to view the video footage in
near-real time via rtsp. The benefit of the rtsp approach is that each
user can have a unique rtsp session of the video with the intent of
near-real time trick play. If an analyst sees something of interest in
the video, they need to ability to rewind (or at least seek backwards)
a few seconds before the video segment of interest to verify the
footage. The ability to re-verify a video segment in the recent past,
while watching the near-real time video, is why we would like to have
this Live555 Indexing feature.
Also, these videos will remain archived and available via rtsp for
future analysis, so we will be using the rtsp and trick play options
after the video is completely received. We are just hoping that we
could use a live indexing rtsp feature for the near-real time analysis
use case instead of creating a custom caching of the video until the
video is fully received and indexed. As the video stream we are
receiving may be very long (may be up to or more than an hour is some
cases), we cannot realistically index the file as we are receiving it
without the requested feature.
Thank you,
Michael Chapman
*From:*live-devel [mailto:live-devel-boun...@ns.live555.com
<mailto:live-devel-boun...@ns.live555.com>] *On Behalf Of *Ross Finlayson
*Sent:* Sunday, November 16, 2014 1:07 PM
*To:* LIVE555 Streaming Media - development & use
*Subject:* EXTERNAL: Re: [Live-devel] Creating live tsx file or
Updating existing TSX file
I am recording a transport stream file that needs to support rtsp
trick play as it is being recorded
People often ask for this feature, and I'm a bit puzzled by it. What
specific 'trick play' operations do you want the server to be able to
perform on the Transport Stream file while it is still growing? (I'm
trying to understand whether/when this actually makes sense.)
Is it possible to create the tsx file as I am recording and
continue indexing as new data if received (so having the indexer
block and wait for new data) while also having that partially
complete tsx file be used with the Live555MediaServer for trick play?
I may well end up adding this feature - but first, I'd need to get a
feel for how much it makes sense (thus my question above).
Ross Finlayson
Live Networks, Inc.
http://www.live555.com/
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