I run videoconferences via FreeSWITCH (https://freeswitch.com), which provides H264 decoding/encoding via a wrapper module around libav. H264 is a requirement for iOS access to these videoconferences, as that's the only WebRTC codec it supports.
Upon upgrading from Debian Jessie to Debian Stretch, H264 encoding of outbound video to iOS devices no longer works properly, either not sending any video packets at all, or when it does, with a lot of delay (4-5 seconds) and freezing. Since I compile FreeSWITCH from source, and am running the exact same code base on Jessie and Stretch, I suspect the issue is due to a change in packages FreeSWITCH depends upon. Since libav is the package FreeSWITCH leverages to perform the transcoding, and the package versions differ, it seems a good place to start looking for the issue. Here are the version differences between Jessie and Stretch: JESSIE: Package: libavcodec-extra-56 Version: 6:11.12-1~deb8u1 STRETCH: Package: libavcodec57 Version: 7:3.2.12-1~deb9u1 Have there been any API or configuration changes between these versions that might explain the issue I'm experiencing? Also, if anyone believes they can diagnose and solve this issue directly, I'd be open to paying for help. _______________________________________________ libav-devel mailing list libav-devel@libav.org https://lists.libav.org/mailman/listinfo/libav-devel
