How to select only the streams in ffprobe?
Select only the streams specified by stream_specifier. This option affects only the options related to streams (e.g. show_streams, show_packets, etc.). For example to show only audio streams, you can use the command: ffprobe -show_streams -select_streams a INPUT To show only video packets belonging to the video stream with index 1: ffprobe…
What can you do with the ffprobe tool?
For example it can be used to check the format of the container used by a multimedia stream and the format and type of each media stream contained in it. If a url is specified in input, ffprobe will try to open and probe the url content.
How are metadata tags recognized in ffprobe format?
Metadata tags stored in the container or in the streams are recognized and printed in the corresponding “FORMAT”, “STREAM” or “PROGRAM_STREAM” section. All the numerical options, if not specified otherwise, accept a string representing a number as input, which may be followed by one of the SI unit prefixes, for example: ’K’, ’M’, or ’G’.
How is the output of the ffprobe format defined?
ffprobe output is designed to be easily parsable by a textual filter, and consists of one or more sections of a form defined by the selected writer, which is specified by the print_format option. Sections may contain other nested sections, and are identified by a name (which may be shared by other sections), and an unique name.
When to use a positive exit code with ffprobe?
If the url cannot be opened or recognized as a multimedia file, a positive exit code is returned. ffprobe may be employed both as a standalone application or in combination with a textual filter, which may perform more sophisticated processing, e.g. statistical processing or plotting.
Is there a way to use FFmpeg recursively?
Some guides, like here and here, do describe how to apply a ffmpeg command recursively, but my coding skills are limited, so therefore I can’t find a way to combine these commands to get the following: