Re: [FFmpeg-devel] How to make the link.exe as MSVC's link
Yes, it is true. But I think this job is not hard, we can use which command to get the cl path. Like $ which cl/c/Program Files (x86)/Microsoft Visual Studio 12.0/VC/BIN/cl.exe Then we can replace the cl.exe with link.exe, so we can got the correct link for msvc. But the problem is I do not know how to operator the string in configure. Thanks for anyone can help. Date: Tue, 16 Dec 2014 09:57:56 +0100 From: j...@videolan.org To: ffmpeg-devel@ffmpeg.org Subject: Re: [FFmpeg-devel] How to make the link.exe as MSVC's link On 16 Dec, Jesse Jiang wrote : I know, but I want make it more easly. It will confusuon the beginer. Beginners should probably not compile FFmpeg. -- Jean-Baptiste Kempf http://www.jbkempf.com/ - +33 672 704 734 Sent from my Electronic Device ___ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel ___ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
[FFmpeg-devel] How to make the link.exe as MSVC's link
Hi All,
I want to make MSVC build ffmpeg more easily. There is a problem, if we launch
msys.bat which in mingw enviroment, the link.exe in msys will conflict with
link.exe in MSVC.
So I try to change the configure like this
msvc)
# Check whether the current MSVC version needs the C99 converter.
# From MSVC 2013 (compiler major version 18) onwards, it does actually
# support enough of C99 to build ffmpeg. Default to the new
# behaviour if the regexp was unable to match anything, since this
# successfully parses the version number of existing supported
# versions that require the converter (MSVC 2010 and 2012).
cl_major_ver=$(cl 21 | sed -n 's/.*Version
\([[:digit:]]\{1,\}\)\..*/\1/p')
if [ -z $cl_major_ver ] || [ $cl_major_ver -ge 18 ]; then
cc_default=cl
ld_default=/c/Program Files (x86)/Microsoft Visual Studio
12.0/VC/BIN/link.exe
else
cc_default=c99wrap cl
ld_default=link
fi
“VC/BIN/link.exe” only be used in X86, if it is x64 or arm, the path is
different.
But I found that, the cl and link.exe is in the same folder, so is there any
way to get the cl path, and then modify the path with link’s path.
Thanks all.
Best regards,
Jesse
Sent from Windows Mail
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Re: [FFmpeg-devel] How to make the link.exe as MSVC's link
I know, but I want make it more easly. It will confusuon the beginer. Sent from Surface From: Derek Buitenhuis Sent: Tuesday, December 16, 2014 12:06 PM To: FFmpeg development discussions and patches On 12/16/2014 12:39 AM, Jesse Jiang wrote: Hi All, I want to make MSVC build ffmpeg more easily. There is a problem, if we launch msys.bat which in mingw enviroment, the link.exe in msys will conflict with link.exe in MSVC. This is covered in the documentation: http://ffmpeg.org/platform.html#Microsoft-Visual-C_002b_002b-or-Intel-C_002b_002b-Compiler-for-Windows Look under notes. - Derek ___ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel ___ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
[FFmpeg-devel] FFmpeg in Microsoft Media Foudation
Hi All, Is there any open-source project which using ffmpeg in MFT(Microsoft Media Foundation). I know there is Lav project for DShow. So is there any plant to move to MFT. I want to create an open-source project like this, but I have less experience on this. I hope some experts can invoke my project. Best regards Jesse Sent from Surface ___ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
Re: [FFmpeg-devel] WinRT API support patch
Hi Reimar, Because of Windows RT cannot use CryptographicBuffer or _beginthreadex API, so I try to use rand() instead of it, or we need to write own function instead of it. If we use WinRT api to instead of these apis, it will cause more bugs. Best regards,Jesse From: reimar.doeffin...@gmx.de Date: Thu, 20 Nov 2014 09:18:30 +0100 To: ffmpeg-devel@ffmpeg.org Subject: Re: [FFmpeg-devel] WinRT API support patch On 20 November 2014 08:34:54 CET, Jesse Jiang jessejiang0...@outlook.com wrote: Add WinRT API supports At least 2 fairly major issues: 1) using rand() basically never is correct. Use the appropriate CryptographicBuffer function (yes, that means you need some C++ code unfortunately). 2) CreateThread is not compatible with _beginthreadex, there is a good reason why we use this. Using the other without additional changes will cause memleaks or worse. I am not even sure it is at all possible to use CreateThread correctly for us. ___ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel ___ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
Re: [FFmpeg-devel] WinRT API support patch
Hi JB, Based on my understanding, mingw-w64 need gcc, so in this way, we need to linked gcc library into our App. I don't want a big library with our Apps. I know the mingw is a correct way, but how could it works with MSVC? Date: Thu, 20 Nov 2014 09:53:27 +0100 From: j...@videolan.org To: ffmpeg-devel@ffmpeg.org Subject: Re: [FFmpeg-devel] WinRT API support patch On 20 Nov, Jesse Jiang wrote : Add WinRT API supports This patch is wrong on almost every level. rand() is wrong. modifying configure because your headers are broken is wrong too. doing an API rewrapper in FFmpeg is the wrong place, look at winstorecompat in mingw-w64. With my kindest regards, -- Jean-Baptiste Kempf http://www.jbkempf.com/ - +33 672 704 734 Sent from my Electronic Device ___ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel ___ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
Re: [FFmpeg-devel] WinRT API support patch
Do you mean that we can use rand() instead of CryptGenRandom in ffmpeg? Date: Thu, 20 Nov 2014 12:17:10 +0100 From: j...@videolan.org To: ffmpeg-devel@ffmpeg.org Subject: Re: [FFmpeg-devel] WinRT API support patch 1. libgcc is not big 2. MSVC 2013 has correctly defined headers to solve the rand issue and the configure part. Le 20/11/2014 11:34, Jesse Jiang a écrit : Hi JB, Based on my understanding, mingw-w64 need gcc, so in this way, we need to linked gcc library into our App. I don't want a big library with our Apps. I know the mingw is a correct way, but how could it works with MSVC? Date: Thu, 20 Nov 2014 09:53:27 +0100 From: j...@videolan.org To: ffmpeg-devel@ffmpeg.org Subject: Re: [FFmpeg-devel] WinRT API support patch On 20 Nov, Jesse Jiang wrote : Add WinRT API supports This patch is wrong on almost every level. rand() is wrong. modifying configure because your headers are broken is wrong too. doing an API rewrapper in FFmpeg is the wrong place, look at winstorecompat in mingw-w64. With my kindest regards, -- Jean-Baptiste Kempf http://www.jbkempf.com/ - +33 672 704 734 Sent from my Electronic Device ___ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel ___ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel -- Jean-Baptiste Kempf http://www.jbkempf.com/ - +33 672 704 734 Sent from my Electronic Device ___ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel ___ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
Re: [FFmpeg-devel] WinRT API support patch
Hi All, I did some research, rand() is pseudo random. CryptGenRandom is the system-wide seed, but it cannot be used in Windows RT. I try to use CryptographicBuffer, which is Windows RT API, but there is a problem. This API needs to link Windows.winmd. The Windows.winmd just like a DLL, but it may different from Windows RT and Windows Phone. First, the SDKs are in the different PATH,Second, the files are also different. It means that developer need to choice platform first, and then compiler for different library. I hope ffmpeg only depends on support win32 apis and CRT apis. So is there any way to instead of srand(time(0)); rand(); ? How about c++11 random or Mersenne twister Algorithmic Best regards,Jesse Date: Fri, 21 Nov 2014 02:49:59 +0100 From: michae...@gmx.at To: ffmpeg-devel@ffmpeg.org Subject: Re: [FFmpeg-devel] WinRT API support patch On Fri, Nov 21, 2014 at 01:43:29AM +, Jesse Jiang wrote: Do you mean that we can use rand() instead of CryptGenRandom in ffmpeg? rand() is completely wrong its not even doing the correct operation rand() is pseudo random the code requires a strong (and non pseudo) random value [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB When you are offended at any man's fault, turn to yourself and study your own failings. Then you will forget your anger. -- Epictetus ___ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel ___ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
Re: [FFmpeg-devel] WinRT API support patch
Now, I find a function get_generic_seed()
So, I use this function will work fine?
uint32_t av_get_random_seed(void){uint32_t seed;
#if HAVE_CRYPTGENRANDOMHCRYPTPROV provider;if
(CryptAcquireContext(provider, NULL, NULL, PROV_RSA_FULL,
CRYPT_VERIFYCONTEXT | CRYPT_SILENT)) {BOOL ret =
CryptGenRandom(provider, sizeof(seed), (PBYTE) seed);
CryptReleaseContext(provider, 0);if (ret)return seed;
}#endif
#if HAVE_WINRTAPIreturn get_generic_seed();#endif
if (read_random(seed, /dev/urandom) == sizeof(seed))return seed;
if (read_random(seed, /dev/random) == sizeof(seed))return seed;
return get_generic_seed();}
From: jessejiang0...@outlook.com
To: ffmpeg-devel@ffmpeg.org
Date: Fri, 21 Nov 2014 03:51:12 +
Subject: Re: [FFmpeg-devel] WinRT API support patch
Hi All,
I did some research, rand() is pseudo random. CryptGenRandom is the
system-wide seed, but it cannot be used in Windows RT.
I try to use CryptographicBuffer, which is Windows RT API, but there is a
problem. This API needs to link Windows.winmd. The Windows.winmd just like a
DLL, but it may different from Windows RT and Windows Phone. First, the SDKs
are in the different PATH,Second, the files are also different.
It means that developer need to choice platform first, and then compiler for
different library.
I hope ffmpeg only depends on support win32 apis and CRT apis.
So is there any way to instead of srand(time(0)); rand(); ? How about c++11
random or Mersenne twister Algorithmic
Best regards,Jesse
Date: Fri, 21 Nov 2014 02:49:59 +0100
From: michae...@gmx.at
To: ffmpeg-devel@ffmpeg.org
Subject: Re: [FFmpeg-devel] WinRT API support patch
On Fri, Nov 21, 2014 at 01:43:29AM +, Jesse Jiang wrote:
Do you mean that we can use rand() instead of CryptGenRandom in ffmpeg?
rand() is completely wrong
its not even doing the correct operation
rand() is pseudo random
the code requires a strong (and non pseudo) random value
[...]
--
Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB
When you are offended at any man's fault, turn to yourself and study your
own failings. Then you will forget your anger. -- Epictetus
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[FFmpeg-devel] WinRT API support patch
Add WinRT API supports 0001-Add-WindowsRT-support.patch Description: Binary data ___ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
[FFmpeg-devel] Fix restrict bug
*restrict has been replaced by av_restrict. I meet this bug when I compiler for ARM in VS. There should be some other places need to be replaced. Best regards,Jesse 0002-restrict-bug-should-be-replaced-by-av_restrict.patch Description: Binary data ___ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
[FFmpeg-devel] Move ffmpeg to WinRT
Hi All, I want to move ffmpeg to WinRT platform, like Windows Store and Windows Phone. As the GCC cannot compiler to ARM-COFF, so I convert the GNU-style assembly codes to ARM-style codes. Also the codes are open-sourced, here https://github.com/qyljcy/FFmpeg Now this project can be compiled, but I didn't know if the assembly codes work well. I want to know, if there is any test project to test the function like ff_ps_add_squares_neon, ect. As the WinRT platform is different from win32 or linux, so I need to test them one by one. I hope someone can help me, or work together. Thanks very much Best regards,Jesse ___ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
Re: [FFmpeg-devel] Move ffmpeg to WinRT
This project should be used as static library. I have done two things in this project. One is converting unsupported APIs to Winrt API, other is converting arm assembly codes to support armasm which VS compiler. Don't worry about Windows 10. Windows 10 is based on the WinRT API, maybe there are some differences, but most of them are the same. From: bumblebritche...@gmail.com Date: Mon, 17 Nov 2014 05:37:11 -0500 To: ffmpeg-devel@ffmpeg.org Subject: Re: [FFmpeg-devel] Move ffmpeg to WinRT As of Windows 10, WinRT is deprecated, so it's kind of a waste of time dude :/ On Mon, Nov 17, 2014 at 5:02 AM, Jesse Jiang jessejiang0...@outlook.com wrote: Hi All, I want to move ffmpeg to WinRT platform, like Windows Store and Windows Phone. As the GCC cannot compiler to ARM-COFF, so I convert the GNU-style assembly codes to ARM-style codes. Also the codes are open-sourced, here https://github.com/qyljcy/FFmpeg Now this project can be compiled, but I didn't know if the assembly codes work well. I want to know, if there is any test project to test the function like ff_ps_add_squares_neon, ect. As the WinRT platform is different from win32 or linux, so I need to test them one by one. I hope someone can help me, or work together. Thanks very much Best regards,Jesse ___ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel ___ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel ___ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
Re: [FFmpeg-devel] Move ffmpeg to WinRT
Hi JB, Haven't seen you for a long time. I have sent you email before to talk about the GCC compile for ARM-COFF. At that time, I know it is hard for GCC to do this, so I try to convert the assembly codes. If there is gas-preproc, it should be a better choice. Where can I find this script, is it open-source? Best regards,Jesse Date: Mon, 17 Nov 2014 12:32:55 +0100 From: j...@videolan.org To: ffmpeg-devel@ffmpeg.org Subject: Re: [FFmpeg-devel] Move ffmpeg to WinRT On 17 Nov, Jesse Jiang wrote : I want to move ffmpeg to WinRT platform, like Windows Store and Windows Phone. As the GCC cannot compiler to ARM-COFF, so I convert the GNU-style assembly codes to ARM-style codes. Also the codes are open-sourced, here https://github.com/qyljcy/FFmpeg Now this project can be compiled, but I didn't know if the assembly codes work well. This work is useless... FFmpeg can already be compiled on WinRT, with gas-preproc... -- Jean-Baptiste Kempf http://www.jbkempf.com/ - +33 672 704 734 Sent from my Electronic Device ___ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel ___ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
Re: [FFmpeg-devel] Move ffmpeg to WinRT
Thanks Micheal Date: Tue, 18 Nov 2014 04:56:56 +0100 From: michae...@gmx.at To: ffmpeg-devel@ffmpeg.org Subject: Re: [FFmpeg-devel] Move ffmpeg to WinRT On Tue, Nov 18, 2014 at 03:07:34AM +, Jesse Jiang wrote: Hi JB, Haven't seen you for a long time. I have sent you email before to talk about the GCC compile for ARM-COFF. At that time, I know it is hard for GCC to do this, so I try to convert the assembly codes. If there is gas-preproc, it should be a better choice. Where can I find this script, is it open-source? yes it is our variant of it is here: https://github.com/FFmpeg/gas-preprocessor [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB No human being will ever know the Truth, for even if they happen to say it by chance, they would not even known they had done so. -- Xenophanes ___ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel ___ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
