FFmpeg

Probe and Inspect

# Show all stream info (codec, resolution, bitrate, duration)
ffprobe -v error -show_format -show_streams input.mp4

# One-line summary: duration, size, bitrate
ffprobe -v error -show_entries format=duration,size,bit_rate -of default=noprint_wrappers=1 input.mp4

# Show video resolution and frame rate
ffprobe -v error -select_streams v:0 -show_entries stream=width,height,r_frame_rate,codec_name -of csv=p=0 input.mp4

# List all supported codecs
ffmpeg -codecs

# List all supported formats
ffmpeg -formats