[Ffmpeg-devel] av_open_input_stream
Raphael HUCK
raphaelh
Fri Dec 9 20:52:04 CET 2005
Hi,
I've been trying to find a documentation about the API, and the only
thing I could find are the Doxygen pages on a French server (the ones on
mplayerhq.hu seem to be down).
I'm interested specifically in the "av_open_input_stream" function:
http://www.irisa.fr/texmex/people/dufouil/ffmpegdoxy/libavformat_2utils_8c.html#a32
It is said that it llocates all the structures needed to read an input
stream, which I had guessed from the name. Could someone tell me more
about it ? What is the "filename" parameter for ? What kind of input
stream does it read ?
In fact, I have made a client which captures video on a Mac Mini from an
HD camera via Firewire, and then sends the data through the SmartFlow
System (the project I'm working for, http://www.nist.gov/smartspace/),
and then another client receives the data on a Linux machine, and should
display it.
The data captured from the camera is in MPEG2-TS, so I'm using
libav(format/codec) to decode the video, and then SDL to display it
using an overlay.
The problem is that I receive 188 bytes packets, and I have to display
the video in real time in the receiver client.
The only functions I have seen in libav(codec/format) to open a video
are "av_open_input_file" and "av_open_input_stream".
Does anyone have an idea how I could decode and read this MPEG2-TS video
flow which comes in packets of 188 bytes ?
Thanks in advance,
--Raphael HUCK
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