add metadata-cli

technology/applications/media/metadata-cli.md

@@ -0,0 +1,53 @@
+---
+obj: application
+repo: https://github.com/zmwangx/metadata
+---
+
+# metadata
+`metadata` is a media metadata parser and formatter designed for human consumption. Powered by FFmpeg.
+
+Example:
+
+```
+$ metadata '20160907 Apple Special Event.m4v'
+Title:                  Apple Special Event, September 2016 (1080p)
+Filename:               20160907 Apple Special Event.m4v
+File size:              6825755188 (6.83GB, 6.36GiB)
+Container format:       MPEG-4 Part 14 (M4V)
+Duration:               01:59:15.88
+Pixel dimensions:       1920x800
+Sample aspect ratio:    1:1
+Display aspect ratio:   12:5
+Scan type:              Progressive scan*
+Frame rate:             29.97 fps
+Bit rate:               7631 kb/s
+    #0: Video, H.264 (High Profile level 4), yuv420p, 1920x800 (SAR 1:1, DAR 12:5), 29.97 fps, 7500 kb/s
+    #1: Audio (und), AAC (LC), 48000 Hz, stereo, 125 kb/s
+    #2: Subtitle (eng), EIA-608 closed captions
+
+```
+
+Compare this to `ffprobe` or `mediainfo` (both great tools, just not so human-readable):
+
+## Usage
+```
+$ metadata -h
+metadata 0.1.4
+Zhiming Wang <metadata@zhimingwang.org>
+Media file metadata for human consumption.
+
+USAGE:
+    metadata [FLAGS] <FILE>...
+
+FLAGS:
+    -A, --all-tags    Print all metadata tags
+    -c, --checksum    Include file checksum(s)
+    -h, --help        Prints help information
+    -s, --scan        Decode frames to determine scan type (slower, but determines interlaced more accurately; see man
+                      page for details)
+    -t, --tags        Print metadata tags, except mundane ones
+    -V, --version     Prints version information
+
+ARGS:
+    <FILE>...    Media file(s)
+```