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Fade both video and audio streams
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ffmpeg -i input_file -filter:v "fade=in:st=0:d=1, fade=out:st=59:d=1" -filter:a "afade=in:st=0:d=1, afade=out:st=59:d=1" -c:v libx264 -c:a aac output_file
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This command fades in and out the first and last 30 video frames and 44100 audio samples on a video
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+ - ffmpeg
- starts the command
+ - -i input_file
- path, name and extension of the input file
+ - -filter:v "fade=in:st=0:d=1, fade=out:st=59:d=1"
- applies a video filter that fades in the first and last 30 video frames
+ - -filter:a "afade=in:st=0:d=1, afade=out:st=59:d=1"
- applies an audio filter that fades in the first and last 30 video frames.
st sets the start and d sets the duration.
+ - -c:v video_codec
- as a video filter is used, it is not possible to use
-c copy. The video must be re-encoded with whatever video codec is chosen, e.g. ffv1, v210 or prores.
+ - -c:a audio_codec
- as an audio filter is used, it is not possible to use
-c copy. The audio must be re-encoded with whatever audio codec is chosen, e.g. aac.
+ - output_file
- path, name and extension of the output_file
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