[FFmpeg-devel] [PATCH v3 3/3] avutil/random_seed: add support for gcrypt and OpenSSL as source of randomness

[James Almer]

On 7/5/2023 9:56 AM, Anton Khirnov wrote:
> Quoting James Almer (2023-07-05 01:26:14)
>> Signed-off-by: James Almer <jamrial at gmail.com>
>> ---
>>   configure               |  2 +-
>>   libavutil/random_seed.c | 16 ++++++++++++++++
>>   2 files changed, 17 insertions(+), 1 deletion(-)
>>
>> diff --git a/configure b/configure
>> index 107d533b3e..d6e78297fe 100755
>> --- a/configure
>> +++ b/configure
>> @@ -3892,7 +3892,7 @@ avfilter_deps="avutil"
>>   avfilter_suggest="libm stdatomic"
>>   avformat_deps="avcodec avutil"
>>   avformat_suggest="libm network zlib stdatomic"
>> -avutil_suggest="clock_gettime ffnvcodec libm libdrm libmfx opencl user32 vaapi vulkan videotoolbox corefoundation corevideo coremedia bcrypt stdatomic"
>> +avutil_suggest="clock_gettime ffnvcodec gcrypt libm libdrm libmfx opencl openssl user32 vaapi vulkan videotoolbox corefoundation corevideo coremedia bcrypt stdatomic"
> 
> What will this do exactly?

It's a soft dependency. Only if OpenSSL or GCrypt are enabled they will 
be added to avutil's library dependencies.
Notice the bcrypt entry, also used in random_seed, and all the hwcontext 
backends.