04-14-2011
wget performance
I am looking for a way to measure performance metrics of streaming audio/video from a contecnt server, e.g. YouTube for example. Im keen to see if I can look at duration it took for contecnt to download.
I know from the output of wget's log file you can see duration a url is downloaded in.
However I need to get the duration it takes for the streaming content.
Thanks
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LEARN ABOUT OSX
qtdefaults
qtdefaults(1) BSD General Commands Manual qtdefaults(1)
NAME
qtdefaults -- access the QuickTime Preferences
SYNOPSIS
qtdefaults read LegacyAudioCodecsEnabled
qtdefaults read LegacyVideoCodecs [<codec>]
qtdefaults read InstalledLegacyVideoCodecs
qtdefaults read TransportSettings
qtdefaults read MimeSettings
qtdefaults read MediaKeys [category]
qtdefaults reset DownloadCache
qtdefaults reset TransportSettings
qtdefaults reset MimeSettings
qtdefaults reset LegacyVideoCodecs
qtdefaults write LegacyAudioCodecsEnabled <yes | no>
qtdefaults write LegacyVideoCodecs <videocodec> <enabled | disabled>
qtdefaults write MediaKeys <category> <key>
qtdefaults write TransportSettings <protocol> <port>
qtdefaults delete MediaKeys <category> <key>
DESCRIPTION
qtdefaults allows users to read, write, reset and delete QuickTime user preferences from a command line shell. The commands are as follows:
read LegacyAudioCodecsEnabled
Prints whether legacy audio codecs are enabled for use in the export settings.
read LegacyVideoCodecs <videocodec>
Prints whether the specified legacy video codec is enabled for use in the export settings. It will print "enabled" if the codec is
enabled, "disabled" if disabled, or "unrecognized" if the codec is unknown.
read LegacyVideoCodecs
Prints list of legacy audio codecs currently enabled for use in the export settings.
read InstalledLegacyVideoCodecs
Prints out a list of all legacy video codecs installed in the current system. This list includes both enabled and disabled video
codecs. These codec identifiers are used with 'qtdefaults read LegacyVideoCodecs' and 'qtdefaults write LegacyVideoCodecs'.
read TransportSettings
Prints the transport settings being used by QuickTime for streaming media.
read MimeSettings
Prints the MIME types currently being handled by the QuickTime plugin.
read MediaKeys <category>
Prints the media keys being used by QuickTime to playback encrypted movies. The optional <category> parameter can be used to list
only the media keys associated with the specified category.
reset DownloadCache
Empties the cache being used by QuickTime to store downloaded content.
reset TransportSettings
Resets QuickTime to automatically determine the best protocol and port for streaming media.
reset MimeSettings
Resets QuickTime plug-in to handle the default MIME types.
reset LegacyVideoCodecs
Disables all QuickTime legacy video codecs.
write LegacyAudioCodecsEnabled <value>
A <value> of "yes" will enable the legacy audio codecs for use in the export settings and a <value> of "no" will disable them.
write LegacyVideoCodecs <videocodec> <value>
A <value> of "enabled" will enable the specified legacy video codec for use in the export settings and a <value> of "disabled" will
disable it.
write MediaKeys <category> <key>
Adds the media key specified by <category> and <key> values to the list of media keys used to playback encrypted movies.
write TransportSettings [protocol [port]]
Sets QuickTime streaming to use the transport settings as specified by <protocol> and <port>. Following are the recommended values
for <protocol> and <port>:
- To use HTTP, specify <protocol> = HTTP and <port> = 80
- To use UDP, specify <protocol> = UDP and either <port> = 554 or <port> = 7070
delete MediaKeys <category> <key>
Deletes the media key specified by <category> and <key> if it exists.
SEE ALSO
defaults(1)
MacOS X June 2, 2019 MacOS X