[FFmpeg-devel] [PATCH v2] avformat/tls_schannel: add check for Windows 10 only types and defines

[Michael Niedermayer]

On Sun, Jul 13, 2025 at 01:25:57PM -0300, James Almer wrote:
> Old Mingw-w64 releases provided by some distros seemingly don't have them, so
> check for them and disable the dtls protocol if unavailable.
> 
> Signed-off-by: James Almer <jamrial at gmail.com>
> ---
>  configure                  |  4 ++++
>  libavformat/tls_schannel.c | 29 +++++++++++++++++++++++++++--
>  2 files changed, 31 insertions(+), 2 deletions(-)

fewer errors but still failing:

make -j32 -k
CC	libavformat/tls_schannel.o
src/libavformat/tls_schannel.c: In function ‘tls_handshake_loop’:
src/libavformat/tls_schannel.c:971:25: error: ‘SEC_I_MESSAGE_FRAGMENT’ undeclared (first use in this function)
  971 |         if (sspi_ret == SEC_I_MESSAGE_FRAGMENT) {
      |                         ^~~~~~~~~~~~~~~~~~~~~~
src/libavformat/tls_schannel.c:971:25: note: each undeclared identifier is reported only once for each function it appears in
src/libavformat/tls_schannel.c: In function ‘tls_handshake’:
src/libavformat/tls_schannel.c:1087:21: warning: unused variable ‘sspi_ret’ [-Wunused-variable]
 1087 |     SECURITY_STATUS sspi_ret;
      |                     ^~~~~~~~
At top level:
src/libavformat/tls_schannel.c:1207:12: warning: ‘dtls_open’ defined but not used [-Wunused-function]
 1207 | static int dtls_open(URLContext *h, const char *uri, int flags, AVDictionary **options)
      |            ^~~~~~~~~
make: *** [src/ffbuild/common.mak:81: libavformat/tls_schannel.o] Error 1
make: Target 'all' not remade because of errors.

thx

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

No snowflake in an avalanche ever feels responsible. -- Voltaire
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