howto remove meta info about MP4 or FLV file downloaded off Youtube? Post: 302579000

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Top Forums UNIX for Advanced & Expert Users howto remove meta info about MP4 or FLV file downloaded off Youtube? Post 302579000 by slashdotweenie on Saturday 3rd of December 2011 06:02:17 PM

12-03-2011

Registered User

Quote:

Originally Posted by CarloM

Try exiftool.

doesn't work Error: Writing of MP4 files is not yet supported

Code:

> exiftool -exif:all= test.mp4 
Error: Writing of MP4 files is not yet supported - test.mp4
    0 image files updated
    1 files weren't updated due to errors

exiftool even doesn't show all tags

Code:

> exiftool -all test.mp4 
ExifTool Version Number         : 8.71
File Name                       : test.mp4
Directory                       : .
File Size                       : 25 MB
File Modification Date/Time     : 2011:12:03 21:01:45+01:00
File Permissions                : rw-r--r--
File Type                       : MP4
MIME Type                       : video/mp4
Major Brand                     : MP4 v2 [ISO 14496-14]
Minor Version                   : 0.0.0
Compatible Brands               : isom, mp42
Movie Header Version            : 0
Create Date                     : 2011:12:02 03:45:58
Modify Date                     : 2011:12:02 03:45:58
Time Scale                      : 600
Duration                        : 0:02:17
Preferred Rate                  : 1
Preferred Volume                : 100.00%
Preview Time                    : 0 s
Preview Duration                : 0 s
Poster Time                     : 0 s
Selection Time                  : 0 s
Selection Duration              : 0 s
Current Time                    : 0 s
Next Track ID                   : 3
Track Header Version            : 0
Track Create Date               : 0000:00:00 00:00:00
Track Modify Date               : 2011:12:02 03:45:58
Track ID                        : 1
Track Duration                  : 0:02:17
Track Layer                     : 0
Track Volume                    : 0.00%
Image Width                     : 1460
Image Height                    : 1080
Graphics Mode                   : srcCopy
Op Color                        : 0 0 0
Compressor ID                   : avc1
Source Image Width              : 1460
Source Image Height             : 1080
X Resolution                    : 72
Y Resolution                    : 72
Bit Depth                       : 24
Video Frame Rate                : 10
Matrix Structure                : 1 0 0 0 1 0 0 0 1
Media Header Version            : 0
Media Create Date               : 2011:12:02 03:45:58
Media Modify Date               : 2011:12:02 03:45:58
Media Time Scale                : 44100
Media Duration                  : 0:02:17
Media Language Code             : und
Handler Description             : IsoMedia File Produced by Google, 5-11-2011
Balance                         : 0
Audio Format                    : mp4a
Audio Channels                  : 2
Audio Bits Per Sample           : 16
Audio Sample Rate               : 44100
Handler Type                    : Metadata
Handler Vendor ID               : Apple
Movie Data Size                 : 25906609
Avg Bitrate                     : 1.51 Mbps
Image Size                      : 1460x1080
Rotation                        : 0

not show by exiftool (but by mediainfo):

gshh : o-o.preferred.vadafone-zrh1.v20.lscache3.c.youtube.com

slashdotweenie

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LEARN ABOUT DEBIAN

flvtool2

FLVTOOL2(1)						      General Commands Manual						       FLVTOOL2(1)

NAME

       flvtool2 - a manipulation tool for flash video files

SYNOPSIS

       flvtool2 [-ACDPUVaciklnoprstvx]...[-key:value]...in-path|stdin[out-path|stdout]

DESCRIPTION

       If out-path is omitted, in-path will be overwritten.  In-path can be a single file, or a directory. If in-path is a directory, out-path has
       to be likewise, or can be omitted. Directory recursion is controlled by the -r switch. You can use stdin and stdout  keywords  as  in-  and
       out-path for piping or redirecting.

       Chain commands like that: -UP (updates FLV file than prints out meta data)

COMMANDS

       -A     Adds tags from -t tags-file

       -C     Cuts file using -i inpoint and -o outpoint

       -D     Debugs file (writes a lot to stdout)

       -H     Helpscreen will be shown

       -P     Prints out meta data to stdout

       -U     Updates FLV with an onMetaTag event

SWITCHES

       -a     Collapse space between cut regions

       -c     Compatibility mode calculates some onMetaTag values differently

       -key:value
	      Key-value-pair for onMetaData tag (overwrites generated values)

       -i timestamp
	      Inpoint for cut command in miliseconds

       -k     Keyframe mode slides onCuePoint(navigation) tags added by the add command to nearest keyframe position

       -l     Logs FLV stream reading to stream.log in current directory

       -n     Number of tag to debug

       -o timestamp
	      Outpoint for cut command in miliseconds

       -p     Preserve mode only updates FLVs that have not been processed before

       -r     Recursion for directory processing

       -s     Simulation mode never writes FLV data to out-path

       -t path
	      Tagfile (MetaTags written in XML)

       -v     Verbose mode

       -x     XML mode instead of YAML mode

SEE ALSO

       /usr/share/doc/flvtool2/examples/tags.xml

       http://www.inlet-media.de/flvtool2

AUTHOR

       flvtool2 was written by Norman Timmler <norman.timmler@inlet-media.de>

       This manual page was written by Todd Troxell <ttroxell@debian.org>, for the Debian project (but may be used by others).

								  August 24, 2007						       FLVTOOL2(1)