psiphon-tunnel-core/replace/webrtc/examples/play-from-disk

play-from-disk

play-from-disk demonstrates how to send video and/or audio to your browser from files saved to disk.

For an example of playing H264 from disk see play-from-disk-h264

Instructions

Create IVF named output.ivf that contains a VP8/VP9/AV1 track and/or output.ogg that contains a Opus track

ffmpeg -i $INPUT_FILE -g 30 -b:v 2M output.ivf
ffmpeg -i $INPUT_FILE -c:a libopus -page_duration 20000 -vn output.ogg

Note: In the ffmpeg command which produces the .ivf file, the argument -b:v 2M specifies the video bitrate to be 2 megabits per second. We provide this default value to produce decent video quality, but if you experience problems with this configuration (such as dropped frames etc.), you can decrease this. See the ffmpeg documentation for more information on the format of the value.

Download play-from-disk

export GO111MODULE=on
go get github.com/pion/webrtc/v3/examples/play-from-disk

Open play-from-disk example page

jsfiddle.net you should see two text-areas, 'Start Session' button and 'Copy browser SessionDescription to clipboard'

Run play-from-disk with your browsers Session Description as stdin

The output.ivf you created should be in the same directory as play-from-disk. In the jsfiddle press 'Copy browser Session Description to clipboard' or copy the base64 string manually.

Now use this value you just copied as the input to play-from-disk

Linux/macOS

Run echo $BROWSER_SDP | play-from-disk

Windows

1. Paste the SessionDescription into a file.
2. Run play-from-disk < my_file

Input play-from-disk's Session Description into your browser

Copy the text that play-from-disk just emitted and copy into the second text area in the jsfiddle

Hit 'Start Session' in jsfiddle, enjoy your video!

A video should start playing in your browser above the input boxes. play-from-disk will exit when the file reaches the end

Congrats, you have used Pion WebRTC! Now start building something cool