[FFmpeg-devel] [PATCH] configure: add direct detection of libopencv

[James Almer]

On 2/7/2016 8:24 PM, wm4 wrote:
> On Sun, 7 Feb 2016 23:25:53 +0100
> Andreas Cadhalpun <andreas.cadhalpun at googlemail.com> wrote:
> 
>> The pkg-config file contains all opencv libraries, not only the
>> neccessary ones.
>>
>> This change makes it possible to use the libopencv-imgproc-dev Debian
>> package instead of libopencv-dev, saving about 200 MB of useless
>> build-dependencies.
>>
>> In particular one doesn't need to install the parts of opencv that
>> depend on ffmpeg libraries.
>>
>> Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun at googlemail.com>
>> ---
>>  configure | 3 ++-
>>  1 file changed, 2 insertions(+), 1 deletion(-)
>>
>> diff --git a/configure b/configure
>> index 1000cb1..36ab7e5 100755
>> --- a/configure
>> +++ b/configure
>> @@ -5488,7 +5488,8 @@ enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
>>  enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
>>  enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
>>  enabled libopencv         && { check_header opencv2/core/core_c.h &&
>> -                               require_pkg_config opencv opencv2/core/core_c.h cvCreateImageHeader ||
>> +                               { use_pkg_config opencv opencv2/core/core_c.h cvCreateImageHeader ||
>> +                                 require opencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; } ||
>>                                 require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader; }
>>  enabled libopenh264       && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion
>>  enabled libopenjpeg       && { check_lib openjpeg-2.1/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC ||
> 
> Why not send a patch to opencv?

Doesn't hurt adding this in the meantime.