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Re: [Gnash-dev] Re: NetStream-SquareTest.swf failures with ffmpeg

From: Hong Yu
Subject: Re: [Gnash-dev] Re: NetStream-SquareTest.swf failures with ffmpeg
Date: Wed, 09 Apr 2008 12:46:19 +0800
User-agent: Thunderbird (X11/20080213)

We have been concentrated on AGG graphics-rendering related SWF display, and seen the difference between the default '-g -O2' build and '-O3' build with some heavy animation SWF. But FFmpeg option uses SDL rendering, so might be different, and my previous guess only because I saw the NetStream-SquareTest.swf color display in Gnash-cvs with '-O3'. With the default build of Gnash-cvs (April 7, 2008), I remember seeing the rectangular shape with and/or without color, with many tries.

On Ubuntu6.10-Edgy, we built FFmpeg '51.50.1' (libavcodec) with the source checked out after January 2008 and no later than February 18, 2008. Gnash build encountered error in generating gnashconfig.h for FFmpeg newer than Feb 2008, due to LIBAVCODEC_VERSION in avcodec.h.

Also, if any of your main developers could follow up the bug, that might be better for Gnash project, since I need to work more for current position. Please advise if you believe I could help more.

Best regards,

Hong Yu

Sandro Santill wrote:
On Tue, Apr 08, 2008 at 07:30:16PM +0800, Hong Yu wrote:
We apply 'CFLAGS = -O3' to build, and Gnash-cvs (checked out on April 7, 2008) can display picture of NetStream-SquareTest.swf on Ubuntu Edgy, and its performance of playing other SWFs are improved as well. Maybe you can try rebuilding similarly? Thanks.

-O shouldn't make a difference, ffmpeg version could. Here it is:
Built against ffmpeg version: Lavc1d.51.38.0
What do you have there ?

What's more annoying is lack of any ERROR report about why the video
doesn't show up.

Please follow up on


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