guess_format     2282 ffmpeg.c           file_oformat = guess_format(arg, NULL, NULL);
guess_format     3290 ffmpeg.c               file_oformat = guess_format(NULL, filename, NULL);
guess_format     3159 ffserver.c         ctx->oformat = guess_format("rtp", NULL, NULL);
guess_format     3879 ffserver.c                     feed->fmt = guess_format("ffm", NULL, NULL);
guess_format      757 libavformat/avformat.h AVOutputFormat *guess_format(const char *short_name,
guess_format      185 libavformat/utils.c         return guess_format("image2", NULL, NULL);
guess_format      214 libavformat/utils.c     AVOutputFormat *fmt = guess_format(short_name, filename, mime_type);
guess_format      221 libavformat/utils.c         stream_fmt = guess_format(stream_format_name, NULL, NULL);
guess_format      445 output_example.c     fmt = guess_format(NULL, filename, NULL);
guess_format      448 output_example.c         fmt = guess_format("mpeg", NULL, NULL);