62 lines
1.3 KiB
Plaintext
62 lines
1.3 KiB
Plaintext
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# Basic Usage
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## Getting help
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```shell
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$ packager --help
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```
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## Media file analysis
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Shaka Packager can be used to inspect the content of a media file and dump basic
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stream information.
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```shell
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$ packager input=some_content.mp4 --dump_stream_info
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```
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The output looks like:
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```shell
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File "some_content.mp4":
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Found 2 stream(s).
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Stream [0] type: Video
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codec_string: avc1.4d001e
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time_scale: 24000
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duration: 3002000 (125.1 seconds)
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is_encrypted: false
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codec: H264
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width: 720
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height: 360
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pixel_aspect_ratio: 8:9
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trick_play_factor: 0
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nalu_length_size: 4
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Stream [1] type: Audio
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codec_string: mp4a.40.2
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time_scale: 44100
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duration: 5517311 (125.1 seconds)
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is_encrypted: false
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codec: AAC
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sample_bits: 16
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num_channels: 2
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sampling_frequency: 44100
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language: eng
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```
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## Basic transmuxing
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Shaka Packager can be used to extract streams, optionally transmuxes the streams
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from one container format to another container format.
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Here is a simple command that extracts video and audio from the input file:
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```shell
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$ packager in=some_content.mp4,stream=video,out=video.mp4 \
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in=some_content.mp4,stream=audio,out=audio.mp4
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```
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Shaka Packager is also capable of more complex tasks, such as applying
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encryption, packaging contents to DASH or HLS formats, etc. Refer
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:doc:`tutorials`.
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