[Live-devel] Streaming a H.264 file

[Raymond Tam]

Thanks Ross. Yes I know the exception is not an error, in fact I've been getting it all along while parsing the stream normally.

________________________________

From: live-devel-bounces at ns.live555.com on behalf of Ross Finlayson
Sent: Fri 10/5/2007 1:20 AM
To: LIVE555 Streaming Media - development & use
Subject: Re: [Live-devel] Streaming a H.264 file



	I've implemented my own H.264 framer and testH264AudioVideoStreamer, and the test program is now streaming RTP/H.264 packets to a VLC client and I can see the video playing on the VLC client.

	But after running for a while, I get this error:

	 

	About to throw NO_MORE_BUFFERED_INPUT!

	twH264VideoStreamParser::parse() EXCEPTION (This is normal behavior - *not* an error)


Why do you think that's an error, when the comment in the code explicitly says that it's not?  There's nothing wrong here.  This is just a C++ language exception (*not* an error) that is raised whenever the StreamParser's buffer runs out.  (It tells the code that more data needs to be read from the upstream source.)

The *real* error is this:


	*** glibc detected *** ./testH264AudioVideoStreamer: free(): invalid next size (normal): 0x086923a8 ***

	======= Backtrace: =========

	/lib/libc.so.6[0x9b9efd]

	/lib/libc.so.6(cfree+0x90)[0x9bd550]

	/usr/lib/libstdc++.so.6(__cxa_free_exception+0x3c)[0x255a4c]


I have no idea where this error is occurring, but I see no evidence that it's occurring in the "LIVE555 Streaming Media" code.  Perhaps it's occurring in your new code - e.g., when it's handling a read from the downstream object?


	 

	My test program runs on Linux. I've tried to increase "BANK_SIZE" in StreamParser.cpp from 150,000 to 1,5000,000 but no difference.


This is a 'red herring'.  As I've noted, this C++ language exception is *not* an error; it's the code working normally.
-- 

Ross Finlayson
Live Networks, Inc.
http://www.live555.com/