av_write_trailer 2184 ffmpeg.c               av_write_trailer(os);
av_write_trailer  796 ffserver.c                 av_write_trailer(ctx);
av_write_trailer  810 ffserver.c                     av_write_trailer(ctx);
av_write_trailer 2260 ffserver.c             av_write_trailer(ctx);
av_write_trailer 1179 libavformat/avformat.h int av_write_trailer(AVFormatContext *s);
av_write_trailer  530 output_example.c     av_write_trailer(oc);