marc-parillo / gstreamer-transcribe

Use GStreamer to convert a m3u8 video stream into an audio file for a real-time transcription on AWS.

INSTALL GSTREAMER ON MAC

Followed instructions here to install GStreamer on Mac:

https://github.com/awslabs/amazon-kinesis-video-streams-producer-sdk-cpp

Summary:

1. mkdir -p amazon-kinesis-video-streams-producer-sdk-cpp/build
2. cd amazon-kinesis-video-streams-producer-sdk-cpp/build
3. brew install pkg-config openssl cmake gstreamer gst-plugins-base gst-plugins-good gst-plugins-bad gst-plugins-ugly log4cplus gst-libav
4. export PKG_CONFIG_PATH=/usr/local/opt/openssl/lib/pkgconfig
5. cmake .. -DBUILD_DEPENDENCIES=OFF -DBUILD_GSTREAMER_PLUGIN=ON

QUICK USE

Change AWS Keys and paths in main.js and run node run main.js

Get Information about a stream

gst-discoverer-1.0 [fileUrl or Path]

Listen to Audio Live

gst-launch-1.0 souphttpsrc location=[HLS stream url] ! hlsdemux ! decodebin ! audioconvert ! audioresample ! audio/x-raw, rate=16000 ! autoaudiosink

Watch Video Live

gst-launch-1.0 souphttpsrc location=[HLS stream url] ! hlsdemux ! decodebin ! videoconvert ! videoscale ! autovideosink

Play Audio

gst-play-1.0 [path to audio file]

View plugin Information

gst-inspect-1.0 [plugin name]

Convert to FLAC

gst-launch-1.0 souphttpsrc location=[HLS stream url] ! hlsdemux ! decodebin ! audioconvert ! audioresample ! audio/x-raw, rate=16000 ! flacenc ! filesink location=[path to file]