On Tue, Jan 03, 2017 at 05:52:27 +0100, Georg Stein SMC wrote: > When i can get now a tip how to put hre header into the avformat with > c++, i would be very happy. you may want to ask on the libav-user mailing list, which handles programming with ffmpeg's libraries: https://lists.ffmpeg.org/mailman/listinfo/libav-user/ Moritz