[FFmpeg-devel] [FFmpeg-cvslog] avformat/tls_schannel: add DTLS support

[James Almer]

On 7/12/2025 11:59 PM, James Almer wrote:
> On 7/12/2025 9:32 PM, Michael Niedermayer wrote:
>> On Fri, Jul 11, 2025 at 04:04:17PM +0000, Timo Rothenpieler wrote:
>>> ffmpeg | branch: master | Timo Rothenpieler <timo at rothenpieler.org> | 
>>> Tue Jun 24 19:30:19 2025 +0200| 
>>> [90fa9636efff84ec5a4b06815722c08188dca551] | committer: Timo 
>>> Rothenpieler
>>>
>>> avformat/tls_schannel: add DTLS support
>>>
>>>> http://git.videolan.org/gitweb.cgi/ffmpeg.git/? 
>>>> a=commit;h=90fa9636efff84ec5a4b06815722c08188dca551
>>> ---
>>>
>>>   configure                  |   6 +-
>>>   libavformat/tls_schannel.c | 890 ++++++++++++++++++++++++++++++++++ 
>>> +++++++----
>>>   libavformat/version.h      |   2 +-
>>>   3 files changed, 833 insertions(+), 65 deletions(-)
>>
>> breaks on mingw64
>>
>> src/libavformat/tls_schannel.c: In function ‘ff_dtls_export_materials’:
>> src/libavformat/tls_schannel.c:606:5: error: unknown type name 
>> ‘SecPkgContext_KeyingMaterialInfo’; did you mean 
>> ‘SecPkgContext_NegotiationInfo’?
> 
> This type (and probably everything below) is API introduced on Windows 
> 10, so unless you build targeting _WIN32_WINNT >= 0x0A00, it will not be 
> defined.
> So i guess we should make the tls_schannel.c force that value, like so:
> 
>> diff --git a/libavformat/tls_openssl.c b/libavformat/tls_openssl.c
>> index 2a01fb387d..a5cc8d3e27 100644
>> --- a/libavformat/tls_openssl.c
>> +++ b/libavformat/tls_openssl.c

Err, not here, but in tls_schannel.c

>> @@ -20,6 +20,11 @@
>>   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 
>> 02110-1301 USA
>>   */
>>
>> +#if !defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0A00
>> +#undef _WIN32_WINNT
>> +#define _WIN32_WINNT 0x0A00
>> +#endif
>> +
>>  #include "libavutil/mem.h"
>>  #include "network.h"
>>  #include "os_support.h"
> 

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