Linux command
gst-transcoder-1.0 命令
文件
复制后可按需替换文件名、目录或参数。
常用示例
Transcode a video file
gst-transcoder-1.0 file:///[path/to/input.mp4] file:///[path/to/output.webm]
Transcode with a specific encoding format
gst-transcoder-1.0 file:///[path/to/input.mp4] file:///[path/to/output.mkv] "[encoding_format]"
Transcode and resize
gst-transcoder-1.0 -s [1280x720] file:///[path/to/input.mp4] file:///[path/to/output.mp4]
Transcode with a specific video framerate
gst-transcoder-1.0 -f [30/1] file:///[path/to/input.mp4] file:///[path/to/output.mp4]
List all available encoding targets
gst-transcoder-1.0 -l
Limit CPU usage
gst-transcoder-1.0 -c [50] file:///[path/to/input.mp4] file:///[path/to/output.mp4]
说明
gst-transcoder-1.0 is a command-line tool that transcodes multimedia streams from one format to another using the GStreamer framework. It reads from an input URI, processes the media, and writes to an output URI in the specified encoding format. The encoding format can be specified explicitly as a serialization string (e.g. muxer_caps:video_caps:audio_caps), as a named target from .gep profile files, or omitted entirely to let the tool guess the format from the output file extension. The tool uses the GStreamer Transcoder API internally, leveraging decodebin and encodebin elements for automatic format detection and encoding.
参数
- -h, --help
- Show help options.
- --help-all
- Show all help options.
- --help-gst
- Show GStreamer-specific options.
- -c, --cpu-usage _PERCENT_
- Target CPU usage percentage for the transcoding process.
- -l, --list-targets
- List all available encoding targets and exit.
- -s, --size _WxH_
- Set the output video frame size (e.g. 1280x720).
- -r, --audio-rate _HZ_
- Set the audio sampling rate in Hz.
- -f, --framerate _FRACTION_
- Set the video framerate as a fraction (e.g. 24/1) or a single number (e.g. 24).
- -v, --video-encoder _ENCODER_
- Specify the video encoder element to use.
FAQ
What is the gst-transcoder-1.0 command used for?
gst-transcoder-1.0 is a command-line tool that transcodes multimedia streams from one format to another using the GStreamer framework. It reads from an input URI, processes the media, and writes to an output URI in the specified encoding format. The encoding format can be specified explicitly as a serialization string (e.g. muxer_caps:video_caps:audio_caps), as a named target from .gep profile files, or omitted entirely to let the tool guess the format from the output file extension. The tool uses the GStreamer Transcoder API internally, leveraging decodebin and encodebin elements for automatic format detection and encoding.
How do I run a basic gst-transcoder-1.0 example?
Run `gst-transcoder-1.0 file:///[path/to/input.mp4] file:///[path/to/output.webm]` in a terminal, then adjust file names, paths, flags, or remote targets for your system.
What does -h, --help do in gst-transcoder-1.0?
Show help options.