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<noinclude> | |||
{{ApplicableFor | |||
|MPUs list=STM32MP13x, STM32MP15x, STM32MP21x, STM32MP23x, STM32MP25x | |||
|MPUs checklist=STM32MP13x, STM32MP15x, STM32MP21x, STM32MP23x, STM32MP25x | |||
}} | |||
</noinclude> | |||
== Overview == | == Overview == | ||
{{highlight|'''gst-discoverer'''}} (gst-discoverer-1.0) is a GStreamer command line utility. | {{highlight|'''gst-discoverer'''}} (gst-discoverer-1.0) is a GStreamer command line utility. | ||
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== Usage == | == Usage == | ||
gst-discoverer accepts the following options: | gst-discoverer accepts the following options: | ||
{{Board$}} gst-discoverer-1.0 --help | {{Board$}}gst-discoverer-1.0 --help | ||
< | <syntaxhighlight lang="shell-session"> | ||
gst-discoverer-1.0 --help | gst-discoverer-1.0 --help | ||
Usage: | Usage: | ||
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-c, --toc Output TOC (chapters and editions) | -c, --toc Output TOC (chapters and editions) | ||
-v, --verbose Verbose properties | -v, --verbose Verbose properties | ||
</ | </syntaxhighlight> | ||
By default a short level of information is given including the container format, the audio and the video codecs: | By default a short level of information is given including the container format, the audio and the video codecs: | ||
{{Board$}} gst-discoverer-1.0 {{av_ref_file}} | {{Board$}}gst-discoverer-1.0 {{av_ref_file}} | ||
Analyzing file://{{av_ref_file}} | Analyzing file://{{av_ref_file}} | ||
Done discovering file://{{av_ref_file}} | Done discovering file://{{av_ref_file}} | ||
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The {{highlight|'''-v'''}} option gives more details such as the number of audio channels, the audio sample rate, the video width and height or even the pixel aspect ratio: | The {{highlight|'''-v'''}} option gives more details such as the number of audio channels, the audio sample rate, the video width and height or even the pixel aspect ratio: | ||
{{Board$}} gst-discoverer-1.0 -v {{av_ref_file}} | {{Board$}}gst-discoverer-1.0 -v {{av_ref_file}} | ||
Analyzing file://{{av_ref_file}} | Analyzing file://{{av_ref_file}} | ||
Done discovering file://{{av_ref_file}} | Done discovering file://{{av_ref_file}} | ||
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bitrate: 112000 | bitrate: 112000 | ||
{{WestonLaunch|gst-discoverer-1.0 --help}} | |||
<noinclude> | <noinclude> | ||
Latest revision as of 14:26, 7 October 2024
1. Overview[edit | edit source]
gst-discoverer (gst-discoverer-1.0) is a GStreamer command line utility.
This utility can be used to get information on multimedia content such as images, audio/video files.
2. Usage[edit | edit source]
gst-discoverer accepts the following options:
gst-discoverer-1.0 --help
gst-discoverer-1.0 --help
Usage:
gst-discoverer-1.0 [OPTION?] - discover files synchronously with GstDiscoverer
Help Options:
-h, --help Show help options
--help-all Show all help options
--help-gst Show GStreamer Options
Application Options:
-a, --async Run asynchronously
-t, --timeout=T Specify timeout (in seconds, default 10)
-c, --toc Output TOC (chapters and editions)
-v, --verbose Verbose properties
By default a short level of information is given including the container format, the audio and the video codecs:
gst-discoverer-1.0 /usr/local/demo/media/ST2297_visionv3.webm Analyzing file:///usr/local/demo/media/ST2297_visionv3.webm Done discovering file:///usr/local/demo/media/ST2297_visionv3.webm Topology: container: WebM audio: Vorbis video: VP8 Properties: Duration: 0:04:02.413000000 Seekable: yes Live: no Tags: container format: Matroska language code: en application name: Lavc56.60.100 encoder: Xiph.Org libVorbis I 20150105 (????) encoder version: 0 audio codec: Vorbis nominal bitrate: 112000 bitrate: 112000 video codec: On2 VP8
The -v option gives more details such as the number of audio channels, the audio sample rate, the video width and height or even the pixel aspect ratio:
gst-discoverer-1.0 -v /usr/local/demo/media/ST2297_visionv3.webm Analyzing file:///usr/local/demo/media/ST2297_visionv3.webm Done discovering file:///usr/local/demo/media/ST2297_visionv3.webm Topology: container: video/webm audio: audio/x-vorbis, channels=(int)2, rate=(int)48000, streamheader=(buffer)< 01766f7262697[...] Tags: container format: Matroska language code: en application name: Lavc56.60.100 encoder: Xiph.Org libVorbis I 20150105 (????) encoder version: 0 audio codec: Vorbis nominal bitrate: 112000 bitrate: 112000 Codec: audio/x-vorbis, channels=(int)2, rate=(int)48000, streamheader=(buffer)< 01766f72 [...] Additional info: None Stream ID: 18eb4f2d90d91d79f9bf3f9b9e41e785ee2cc1396d37b5ad127838437f6a3847/002:002 Language: en Channels: 2 (front-left, front-right) Sample rate: 48000 Depth: 32 Bitrate: 112000 Max bitrate: 0 video: video/x-vp8, width=(int)640, height=(int)360, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)25/1 Tags: container format: Matroska video codec: On2 VP8 language code: en Codec: video/x-vp8, width=(int)640, height=(int)360, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)25/1 Additional info: None Stream ID: 18eb4f2d90d91d79f9bf3f9b9e41e785ee2cc1396d37b5ad127838437f6a3847/001:001 Width: 640 Height: 360 Depth: 24 Frame rate: 25/1 Pixel aspect ratio: 1/1 Interlaced: false Bitrate: 0 Max bitrate: 0 Properties: Duration: 0:04:02.413000000 Seekable: yes Live: no Tags: container format: Matroska video codec: On2 VP8 language code: en application name: Lavc56.60.100 encoder: Xiph.Org libVorbis I 20150105 (????) encoder version: 0 audio codec: Vorbis nominal bitrate: 112000 bitrate: 112000