target type Specify target file type ('vcd', 'svcd', 'dvd', 'dv', 'dv50', 'pal-vcd', 'ntsc-svcd'. metadata key = value Set a metadata key/value pair.įor example, for setting the title in the output file:įfmpeg -i in.avi -metadata title='my title' out.flv -v number Set the logging verbosity level. Specifying a positive offset means that the corresponding streams are delayed by 'offset' Offset is added to the timestamps of the input files. This option affects all the input files that follow it. itsoffset offset Set the input time offset in seconds. ss position Seek to given time position in seconds. t duration Restrict the transcoded/captured video sequence to the duration specified in seconds. Quiet panic fatal error warning info verbose debug loglevel is a number or a string containing one of the following values: loglevel loglevel Set the logging level used by the library. filters Show available libavfilter filters.

The fields preceding the codec names have the following meanings:Ĭodec can handle input truncated at random locations instead of only at frame boundaries The fields preceding the format names have the following meanings: Generic options These options are shared amongst the ff* tools.

Ffmpeg map first video and audio