[FFmpeg-devel] [PATCH] configure: If vfwcap_indev disabled, don't do vfw32 checks; if enabled, require vfw32

Hendrik Leppkes h.leppkes at gmail.com
Thu May 18 19:21:42 EEST 2017


On Thu, May 18, 2017 at 3:18 PM, Michael Niedermayer
<michael at niedermayer.cc> wrote:
> On Tue, May 16, 2017 at 03:38:32PM -0700, Aaron Levinson wrote:
>> Signed-off-by: Aaron Levinson <alevinsn at aracnet.com>
>> ---
>>  configure | 4 ++--
>>  1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/configure b/configure
>> index 7980d92..49f91ac 100755
>> --- a/configure
>> +++ b/configure
>> @@ -6013,10 +6013,10 @@ check_header sys/videoio.h
>>  check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
>>
>>  check_lib user32 "windows.h winuser.h" GetShellWindow -luser32
>> -check_lib vfw32 "windows.h vfw.h" capCreateCaptureWindow -lvfw32
>> +disabled vfwcap_indev || { require vfw32 "windows.h vfw.h" capCreateCaptureWindow -lvfw32 &&
>>  # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
>>  # w32api 3.12 had it defined wrong
>> -check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
>> +                           check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines; }
>>
>
> this breaks build on linux
> ERROR: vfw32 not found
>

As discussed on IRC, other then the error on linux, overall I'm not
sure what exactly this change improves? vfw detection seems to work
just fine as is.

- Hendrik


More information about the ffmpeg-devel mailing list