Question: is it possible to add custom libraries not included in the build script

[dvscode]

Is your feature request related to a problem? Please describe.
We want to use ffmpeg library for SRT streaming

Describe the solution you'd like
When compiling library for android we can specify --enable-srt to add SRT module (https://github.com/Haivision/srt.git)

Platform
Would be great to have on all platforms

Additional context
Here is how it's enabled when compiling ffmpeg https://medium.com/@eyevinntechnology/using-ffmpeg-and-srt-to-transport-video-signal-to-the-cloud-7160960f846a

[tanersener]

Unfortunately, srt depends on openssl and the license of openssl is not compatible with LGPL / GPL. See tanersener/mobile-ffmpeg#81.

[dvscode]

@tanersener thank you for fast reply. As you mentioned in linked post, you were waiting for the openssl license to change? According to https://www.openssl.org/source/license.html looks like openssl v3.0 now licensed under Apache v2. does this mean we might have a chance to see libsrt support?

[tanersener]

Yes, when openssl 3.0 is stable enough we can add support for it. Unfortunately, the current 3.0.0 version is not even in beta. The last release they published is 3.0.0-alpha14.

[github-actions]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[Fanfwe]

SRT now has support for building against 3 different crypto libraries: openssl, gnutls and mbedtls.
gnutls is LGPL and mbedtls is Apache-2.0 so it sounds like there's a way forward, potentially.

[tanersener]

A few updates regarding some of the questions asked in this thread:

• Building custom libraries is implemented in the build scripts. See Building FFmpeg Kit with Custom Libraries wiki page
• Openssl 3.0 support is added. However, there are issues regarding building openssl on 32-bit iOS architectures and on tvOS. Because of those problems, openssl won't replace gnutls yet. They are already reported on openssl github page. It must be fixed on their end. Until then openssl will stay partially supported
• srt support is also added, but it relies on openssl. So, it cannot be built on the architectures where we can't build openssl