The file protocol always creates new files. For mpeg1 and mpeg2, one can append directly.
It would seem to be a small change to the file protocol to add a flag to support opening the file in append mode. Is there a good reason this is not already added?? For some standards, this would seem to be a better solution than writing a different file and using the concat protocol to join the two files into a third file. Thx, Duane P.S - code of interest seems to be ffpeg/libavformat/file.c file_open() .. would need to add branch in the decision tree which open file for write without using O_CREAT _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel