AudioChannelManipulation – FFmpeg
stereo → mono stream Downmix both channels Mix a single stereo stream down to a mono stream. Both channels of the stereo stream will be downmixed into the stream: ffmpeg -i stereo.flac -ac 1 mono.flac Warning: Any out of phase stereo will cancel out. The following filtergraph can be used to bring out of phase stereo in phase prior to downmixing: -af "asplit[a],aphasemeter=video=0,ametadata=select:
FFprobeTips – FFmpeg
ffprobe is a simple multimedia stream analyzer. You can use it to output all kinds of information about an input including duration, frame rate, frame size, etc. It is also useful for gathering specific information about an input to be used in a script. Usage ffprobe [OPTIONS] [INPUT_FILE] Show help Refer to the manual: man ffprobe or show the included help: ffprobe -h Scroll to the top of the con
FFmpeg Filters Documentation
1 Description This document describes filters, sources, and sinks provided by the libavfilter library. 2 Filtering Introduction Filtering in FFmpeg is enabled through the libavfilter library. In libavfilter, a filter can have multiple inputs and multiple outputs. To illustrate the sorts of things that are possible, we consider the following filtergraph. [main] input --> split ---------------------
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