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Subject: profiling in mac os - msg#00177
List: video.ffmpeg.user
Hi
I using ffmpeg in a powerpc machine with mac os x.
I want to use gprof in order to profile the execution on the h264 decoder.
But when I run the program I cannot find the gmon.out output file with
the profiling results.
./ffmpeg
ffmpeg version CVS, build 3277056, Copyright (c) 2000-2004 Fabrice Bellard
configuration: --prefix=/Users/alvarez/usr/local/ --disable-ffserver
--disable-ffplay --enable-gprof
built on Oct 31 2005 15:55:47, gcc: 3.3 20030304 (Apple Computer, Inc.
build 1495)
It seems that the version of gcc that comes with mac does not activate
the profiling when '-p' flag is passed, being necessary to pass '-pg'.
But -pg has a conflict with the optimization option '-fomit-frame-pointer'
I made a change in the Makefiles, adding the 'pg' option instead of 'p'.
and eliminating the '-fomit-frame-pointer' flag. In that way the
profiling information is generated correctly.
I don't know how to make these changes into the autoconf utility in
order to make it by default. I also I don't know if this is the best way
to have the activate the profiling.
Any suggestion is welcome.
Thanks.
Mauricio Alvarez
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How to make ffmpeg MPEG2TS output from two or more sources?
Hello, I wish to make one mpeg2ts file from two sound cards in my PC.
Is there way to do this with ffmpeg?
Related to here: http://fabrice.bellard.free.fr/dvbt/
``I used a patched version of FFmpeg to generate a custom DVB
Transport Stream containing two DVB services.''
Anyone have this patches?
Thank you.
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Re: now jpeg support?
Hi
On Mon, Oct 31, 2005 at 10:20:57AM +0100, Michel Bardiaux wrote:
> Michael Niedermayer wrote:
> >Hi
> >
> >On Mon, Oct 03, 2005 at 02:00:47PM +0200, Michel Bardiaux wrote:
> >[...]
> >
> >>To the group at large: the number of queries about the conversion
> >>between images and movies seems to indicate the software is broken, or
> >>the doc is broken, or obscure. But should not the *first* thing to do be
> >>getting rid of the last remnant of -f image. i.e. gif IIRC? So that we
> >>dont have to maintain 2 kinds of image streams?
> >
> >
> >yes, port it to image2 and send a patch ...
> >
> >[...]
> Is there a spec for that, or just RTFS?
just RTFS
[...]
--
Michael
Previous Message by Thread:
click to view message preview
How to make ffmpeg MPEG2TS output from two or more sources?
Hello, I wish to make one mpeg2ts file from two sound cards in my PC.
Is there way to do this with ffmpeg?
Related to here: http://fabrice.bellard.free.fr/dvbt/
``I used a patched version of FFmpeg to generate a custom DVB
Transport Stream containing two DVB services.''
Anyone have this patches?
Thank you.
Next Message by Thread:
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Re: unknown codec 0x66666974
* Guillaume POIRIER <poirierg@xxxxxxxxx> [2005-10-31 14:08 +0100]:
> On 10/31/05, Joshua Crawford <mortarn_lists@xxxxxxxxxxxx> wrote:
>> * Guillaume POIRIER <poirierg@xxxxxxxxx> [2005-10-30 10:02 +0100]:
>>> On 10/30/05, Joshua Crawford <mortarn_lists@xxxxxxxxxxxx> wrote:
>>>> I just recently subscribed to the podcast from Make magazine
>>>> <http://makezine.com/blog/archive/make_podcast/index.xml>, and it contains
>>>> a
>>>> number of .m4b files. I was lucky, in that the first one I tried playing
>>>> (MAKE_2005-07-18.m4b) had JPEG images in it, and it worked fine. The rest
>>>> all have TIFF images, and it seems mplayer doesn't support TIFF (it's not
>>>> linked against libtiff, and there's no configure option I can see).
>>>>
>>>> So, is there some outside codec I need installed? I have the Quicktime
>>>> codecs, from the all codecs tarball from April.
>>>
>>> I don't think it's gonna make any difference, but please try CVS
>>> version of MPlayer.
>>
>> I've just installed the CVS version, and you're right - there's no
>> difference.
>
> The best thing is to upload a "Tiff" video sample online somewhere and
> give a link to it on ffmpeg mailing list so that ppl can hopefully
> work on it and make it watchable.
Ok, so this mail is now also going to ffmpeg-user, and hopefully followups
will only be there.
I don't need to upload the files, I just have to say where I got them :)
<http://downloads.oreilly.com/make/MAKE_2005-07-18.m4b> has JPEG images, and
works in mplayer.
<http://downloads.oreilly.com/make/MAKE_2005-08-01.m4b> (and all the others
from the RSS feed I linked above) has TIFF images, and the pictures aren't
displayed (audio works).
--
Joshua 'bruce' Crawford ... http://www.geocities.com/mortarn
Quando omni flunkus moritati
pgptCnr1zX1UJ.pgp
Description: PGP signature
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