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