FFmpeg development discussions and patch reviews

Rob Coenen | 1 Apr 2005 01:01

Picon

RE: animated GIF support

Bwek, yeah OK see I'm using WinCVS and there's simply no option for this.
Spending 20 minutes already on how the hecl to get the -U switch on

-----Original Message-----
From: ffmpeg-devel-admin <at> lists.sourceforge.net
[mailto:ffmpeg-devel-admin <at> lists.sourceforge.net] On Behalf Of Diego Biurrun
Sent: vrijdag 1 april 2005 0:55
To: ffmpeg-devel <at> lists.sourceforge.net
Subject: Re: [Ffmpeg-devel] animated GIF support

On Thu, Mar 31, 2005 at 11:46:55PM +0200, Måns Rullgård wrote:
> Diego Biurrun <diego <at> biurrun.de> writes:
> 
> > On Thu, Mar 31, 2005 at 09:29:27PM +0200, Rob Coenen wrote:
> >> 
> >> Anyhow here's the diff
> >
> > A unified diff (diff -u) is necessary, otherwise it cannot be applied
> > with patch.
> 
> That's not the reason.  The reason is that unidiffs can be read and
> made sense of by humans.  We want to have some clue about what we're
> applying.

Both things combined make up the reason why unified diffs are a must.
Given the fact that this is the development FAQ No.1 by a looooong shot
and I have lost count of how many times I wrote this (30?, 50?, 100?),
I'm mostly not patient enough to explain it all.  I should make a
template someday.

(Continue reading)

Rob Coenen | 1 Apr 2005 01:21

Picon

RE: animated GIF support

--- ffmpeg/libavformat/gif.c	Thu Mar 31 22:59:05 2005
+++ ffmpeg/libavformat/gif2.c	Thu Mar 31 23:19:32 2005
 <at>  <at>  -43,8 +43,10  <at>  <at> 
 /* bitstream minipacket size */
 #define GIF_CHUNKS 100

-/* slows down the decoding (and some browsers doesn't like it) */
-/* #define GIF_ADD_APP_HEADER */
+/* slows down the decoding (and some browsers don't like it) */
+/* update on the 'some browsers don't like it issue from above: this was
probably due to missing 'Data Sub-block Terminator' (byte 19) in the
app_header */
+#define GIF_ADD_APP_HEADER // required to enable looping of animated gif
+

 typedef struct {
     unsigned char r;
 <at>  <at>  -199,15 +201,40  <at>  <at> 

     /* application extension header */
     /* XXX: not really sure what to put in here... */
+
+	/*	update: this is the 'NETSCAPE EXTENSION' that allows for
looped animated gif
+		see
http://members.aol.com/royalef/gifabout.htm#net-extension
+
+		byte   1       : 33 (hex 0x21) GIF Extension code
+		byte   2       : 255 (hex 0xFF) Application Extension Label
+		byte   3       : 11 (hex (0x0B) Length of Application Block

(Continue reading)

Måns Rullgård | 1 Apr 2005 01:22

Re: animated GIF support

"Rob Coenen" <rob <at> massive-interactive.nl> writes:

> Bwek, yeah OK see I'm using WinCVS and there's simply no option for this.
> Spending 20 minutes already on how the hecl to get the -U switch on
>
> -----Original Message-----
> From: ffmpeg-devel-admin <at> lists.sourceforge.net
> [mailto:ffmpeg-devel-admin <at> lists.sourceforge.net] On Behalf Of Diego Biurrun
> Sent: vrijdag 1 april 2005 0:55
> To: ffmpeg-devel <at> lists.sourceforge.net
> Subject: Re: [Ffmpeg-devel] animated GIF support
>
> Does anybody know a good way to filter out non-unified diffs at the
> mailing list level?  This comes up so often I'm sure somebody must
> already have implemented it.

Same for top-posts...

--

-- 
Måns Rullgård
mru <at> inprovide.com

-------------------------------------------------------
This SF.net email is sponsored by Demarc:
A global provider of Threat Management Solutions.
Download our HomeAdmin security software for free today!
http://www.demarc.com/Info/Sentarus/hamr30

Måns Rullgård | 1 Apr 2005 01:24

Re: gcc3 generating uber-slow asm for c mmx macros :)

Falk Hueffner <falk <at> debian.org> writes:

> D Richard Felker III <dalias <at> aerifal.cx> writes:
>
>> I have a report about gcc3 sucking that I'd like to see if gcc3
>> users can confirm. While working with Robert and Oded on snow
>> optimization, they've been trying to use the C mmx macros
>> (i386/mmx.h) to avoid having to write whole asm blocks by
>> hand. However, gcc3 is generating REALLY horrible code for this
>
> Have you tried using mmintrin.h? If that also generates bad code, file
> a bug report with a test case.

It seems like quite a few people on this list prefer general bashing
instead of reporting bugs properly.

--

-- 
Måns Rullgård
mru <at> inprovide.com

-------------------------------------------------------
This SF.net email is sponsored by Demarc:
A global provider of Threat Management Solutions.
Download our HomeAdmin security software for free today!
http://www.demarc.com/Info/Sentarus/hamr30

g c | 1 Apr 2005 01:28

Picon

Re: Can"t link libavformat

Well I have just this minute downloaded the latest libavformat directory from CVS. Now the thing won't even
compile. I get:

gcc -O3 -g -Wall -Wno-switch  -fomit-frame-pointer -mno-cygwin -I..
-I'/f/ffmpeg/test-1Apr05/ffmpeg-t5labs' -I'/f/ffmpeg/test-1Apr05/ffmpeg-t5labs'/libavcodec
-DHAVE_AV_CONFIG_H -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_GNU_SOURCE -c -o avienc.o
avienc.c 
avienc.c:180: error: `CODEC_ID_LOCO' undeclared here (not in a function)
avienc.c:180: error: initializer element is not constant
avienc.c:180: error: (near initialization for `codec_bmp_tags[85].id')
avienc.c:180: error: initializer element is not constant
avienc.c:180: error: (near initialization for `codec_bmp_tags[85]')
avienc.c:181: error: `CODEC_ID_WNV1' undeclared here (not in a function)
avienc.c:181: error: initializer element is not constant
avienc.c:181: error: (near initialization for `codec_bmp_tags[86].id')
avienc.c:181: error: initializer element is not constant
avienc.c:181: error: (near initialization for `codec_bmp_tags[86]')
avienc.c:182: error: initializer element is not constant
avienc.c:182: error: (near initialization for `codec_bmp_tags[87]')
avienc.c:183: error: initializer element is not constant
avienc.c:183: error: (near initialization for `codec_bmp_tags[88]')
make: *** [avienc.o] Error 1

Just for completeness, my configure settings are:

 /configure --extra-cflags="-fomit-frame-pointer -mno-cygwin"
--extra-ldflags="-Wl,--add-stdcall-alias" --enable-shared --enable-memalign-hack
--enable-mingw32 --disable-a52 --disable-pp --disable-ffserver --disable-ffplay

I am using MinGW on WindowsXP

(Continue reading)

Michael Niedermayer | 1 Apr 2005 01:37

Picon

Picon

Re: Re: Can"t link libavformat

Hi

On Friday 01 April 2005 01:28, g c wrote:
> Well I have just this minute downloaded the latest libavformat directory
> from CVS. Now the thing won't even compile. I get:

try to get the whole of ffmpeg cvs (libavcodec, ...) too 

[...]

--

-- 
Michael

"nothing is evil in the beginning. Even Sauron was not so." -- Elrond

-------------------------------------------------------
This SF.net email is sponsored by Demarc:
A global provider of Threat Management Solutions.
Download our HomeAdmin security software for free today!
http://www.demarc.com/Info/Sentarus/hamr30

Diego Biurrun | 1 Apr 2005 01:46

Picon

Re: animated GIF support

On Fri, Apr 01, 2005 at 01:22:11AM +0200, Måns Rullgård wrote:
> "Rob Coenen" <rob <at> massive-interactive.nl> writes:
> 
> > Bwek, yeah OK see I'm using WinCVS and there's simply no option for this.
> > Spending 20 minutes already on how the hecl to get the -U switch on
> >
> > -----Original Message-----
> > From: ffmpeg-devel-admin <at> lists.sourceforge.net
> > [mailto:ffmpeg-devel-admin <at> lists.sourceforge.net] On Behalf Of Diego Biurrun
> > Sent: vrijdag 1 april 2005 0:55
> > To: ffmpeg-devel <at> lists.sourceforge.net
> > Subject: Re: [Ffmpeg-devel] animated GIF support
> >
> > Does anybody know a good way to filter out non-unified diffs at the
> > mailing list level?  This comes up so often I'm sure somebody must
> > already have implemented it.
> 
> Same for top-posts...

Yes, *sigh*.  This could easily be 90% solved by banning Outlook
(Express) user agents, though.  It would probably cut down on misplaced
user questions as well ;)

Diego

-------------------------------------------------------
This SF.net email is sponsored by Demarc:
A global provider of Threat Management Solutions.
Download our HomeAdmin security software for free today!
http://www.demarc.com/Info/Sentarus/hamr30

(Continue reading)

James A. Morrison | 1 Apr 2005 01:49

Picon

Picon

Re: animated GIF support

Diego Biurrun <diego <at> biurrun.de> writes:

> Given that this is so repetitive and exhausting I wonder why diff does
> not simply create unified diffs by default.  Oh well, probably for
> historic reasons.

 That would be my guess.  I found an old version of diff today that
didn't have -u, it could only do context, -c, diffs and normal diffs.
Anyway, both subversion and arch use unified diffs by default.

--

-- 
Thanks,
Jim

http://www.student.cs.uwaterloo.ca/~ja2morri/
http://phython.blogspot.com
http://open.nit.ca/wiki/?page=jim

-------------------------------------------------------
This SF.net email is sponsored by Demarc:
A global provider of Threat Management Solutions.
Download our HomeAdmin security software for free today!
http://www.demarc.com/Info/Sentarus/hamr30

Rob Coenen | 1 Apr 2005 02:26

Picon

RE: animated GIF support

What is a top-post anyway?

-----Original Message-----
From: ffmpeg-devel-admin <at> lists.sourceforge.net
[mailto:ffmpeg-devel-admin <at> lists.sourceforge.net] On Behalf Of Diego Biurrun
Sent: vrijdag 1 april 2005 1:46
To: ffmpeg-devel <at> lists.sourceforge.net
Subject: Re: [Ffmpeg-devel] animated GIF support

> Same for top-posts...

Yes, *sigh*.  This could easily be 90% solved by banning Outlook
(Express) user agents, though.  It would probably cut down on misplaced
user questions as well ;)

Diego

-------------------------------------------------------
This SF.net email is sponsored by Demarc:
A global provider of Threat Management Solutions.
Download our HomeAdmin security software for free today!
http://www.demarc.com/Info/Sentarus/hamr30

Alexander Strange | 1 Apr 2005 02:47

Re: animated GIF support


On Mar 31, 2005, at 7:26 PM, Rob Coenen wrote:

> What is a top-post anyway?
>
> -----Original Message-----
> From: ffmpeg-devel-admin <at> lists.sourceforge.net
> [mailto:ffmpeg-devel-admin <at> lists.sourceforge.net] On Behalf Of Diego 
> Biurrun
> Sent: vrijdag 1 april 2005 1:46
> To: ffmpeg-devel <at> lists.sourceforge.net
> Subject: Re: [Ffmpeg-devel] animated GIF support
>
>> Same for top-posts...
>
> Yes, *sigh*.  This could easily be 90% solved by banning Outlook
> (Express) user agents, though.  It would probably cut down on misplaced
> user questions as well ;)
>
> Diego

What you just did. Reply at the bottom of the original, not the top.

-------------------------------------------------------
This SF.net email is sponsored by Demarc:
A global provider of Threat Management Solutions.
Download our HomeAdmin security software for free today!
http://www.demarc.com/Info/Sentarus/hamr30

Group

gmane.comp.video.ffmpeg.devel.

Advertisement

Project Web Page

FFmpeg development discussions and patch reviews

Search Archive

Page

1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 78

Articles in period: 771

April 2005

Language

Change language

Options

Current view: Threads only / Showing only 20 lines / Not hiding cited text.
Change to All messages, whole messages, or hide cited text.

Post a message
NNTP Newsgroup
Classic Gmane web interface
XML

XML

RSS Feed
List Information

About Gmane

Recent entries

[PATCH] avformat/mov: read stream bitrates from isml manifest (19 Jun 2013)
[PATCH 1/3] delogo: Fix function description (19 Jun 2013)
[PATCH]Improve idcin probe function (19 Jun 2013)
next major release (19 Jun 2013)
[PATCH] avformat/libmodplug: Reduce the probe score for small input (18 Jun 2013)
[PATCH] Added an option (-ignore_empty_streams) to ignore output files (18 Jun 2013)
[PATCH] Add maintainer for WebVTT demuxer and muxer (18 Jun 2013)
[PATCH] ffplay: simplify and fix flushing out old subtitles on seeking (18 Jun 2013)
[RFC] GXF Patches - HD (17 Jun 2013)
Amount of residual data (17 Jun 2013)
[RFC][PATCH 1/2] lavfi/src_movie: Check pointer is not NULL before der (16 Jun 2013)
about check_pack_header, pls do me a favor (16 Jun 2013)
about check_pack_header, pls do me a favor (16 Jun 2013)
[PATCH] add teletext subtitles using libzvbi (16 Jun 2013)
[PATCH 1/2] lavu/hash: Add support for RIPEMD (16 Jun 2013)
[PATCH 1/6] doc/encoders: Add libopencore-amrnb doc (16 Jun 2013)
SOCIS 2013 and request for mentors (16 Jun 2013)
[PATCH] lavu/utils: silence warnings about incompatible pointer types (15 Jun 2013)
[PATCH/RFC] mathops/x86: work around inline asm miscompilation with GC (15 Jun 2013)
[PATCH] avcodec/wavpack: check for overflow (15 Jun 2013)
[PATCH 1/4] Document "cache" protocol (15 Jun 2013)

Archives

552	June 2013
1277	May 2013
1518	April 2013
1723	March 2013
1505	February 2013
1606	January 2013
1677	December 2012
1633	November 2012
1536	October 2012
1464	September 2012
1636	August 2012
1898	July 2012
1498	June 2012
1333	May 2012
1338	April 2012
1093	March 2012
1106	February 2012
2017	January 2012
1161	December 2011
956	November 2011
829	October 2011
974	September 2011
750	August 2011
519	July 2011
787	June 2011
950	May 2011
1090	April 2011
1875	March 2011
2849	February 2011
2795	January 2011
1138	December 2010
1612	November 2010
1572	October 2010
1919	September 2010
1551	August 2010
2288	July 2010
2232	June 2010
1857	May 2010
1450	April 2010
2195	March 2010
1354	February 2010
2235	January 2010
1145	December 2009
1264	November 2009
1383	October 2009
1349	September 2009
1517	August 2009
1480	July 2009
1567	June 2009
1626	May 2009
2104	April 2009
2695	March 2009
3351	February 2009
2351	January 2009
1712	December 2008
1262	November 2008
1338	October 2008
1445	September 2008
2026	August 2008
1357	July 2008
1278	June 2008
1536	May 2008
1539	April 2008
2061	March 2008
1401	February 2008
1658	January 2008
939	December 2007
1342	November 2007
1438	October 2007
1246	September 2007
1244	August 2007
1596	July 2007
1613	June 2007
1926	May 2007
1916	April 2007
2260	March 2007
1882	February 2007
1464	January 2007
1270	December 2006
1372	November 2006
1823	October 2006
1607	September 2006
1382	August 2006
1083	July 2006
744	June 2006
758	May 2006
865	April 2006
1763	March 2006
1280	February 2006
914	January 2006
647	December 2005
486	November 2005
581	October 2005
755	September 2005
589	August 2005
588	July 2005
701	June 2005
1185	May 2005
766	April 2005
1233	March 2005
778	February 2005
727	January 2005
612	December 2004
547	November 2004
1131	October 2004
901	September 2004
519	August 2004
728	July 2004
677	June 2004
703	May 2004
921	April 2004
926	March 2004
864	February 2004
850	January 2004
673	December 2003
688	November 2003
1345	October 2003
729	September 2003
556	August 2003
639	July 2003
708	June 2003
654	May 2003
548	April 2003
626	March 2003
616	February 2003
870	January 2003
1	January 2002
1	February 2000
1	January 2000

Design

Zawodny | Right Menu | Left Menu

Your Own Design

Paste the URL of your CSS below. Download CSS template