My debugger lied to me.
The crash was actually in sws_getContext() which makes far more sense.
I changed the call to:
sws_opts = sws_getContext(16, 16, PIX_FMT_YUV420P,
16, 16, PIX_FMT_YUV420P, sws_flags,
NULL,NULL,NULL);
but it still crashes.
Stuart
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Stuart Smith
Sent: 13 September 2009 08:31
To: 'Libav* user questions and discussions'
Subject: [libav-user] picture size invalid calling avformat_alloc_context();
Hi, have just updated my local SVN working copy and now I get 'picture size
invalid (268524928x3435973836) when calling avformat_alloc_contex() and I
get an 'access violation'.
This used to work under VS2008 using shared libraries built under Mingw so
I'm not too sure what I have done wrong.
The code is as follows (copied from ffmpeg.c):
av_register_all();
for(i=0; i<CODEC_TYPE_NB; i++){
avcodec_opts[i]= avcodec_alloc_context2((CodecType)i);
}
avformat_opts = avformat_alloc_context();
sws_opts = sws_getContext(16, 16, (PixelFormat)0, 16, 16,
(PixelFormat)0, sws_flags, NULL,NULL,NULL);
Any advice much appreciated.
Thanks
Stuart
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