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Introduction

Advanced Adaptive Media Player (AAMP) is an application which uses gstreamer (AAMP) to present clear/encrypted HTTP Live Streams.(HLS)

HLS is a Media Streaming Protocol used for delivering visual and audio media over the internet. HLS uses the HTTP protocol and hence users can stream media from their regular web server. To Stream HLS data,source files are encoded at different data rates and will be split into chunks with the .ts file extension  and  manifest file  .M3U8  file is created  for maintaining index for the video chunks. For example, M3U8 file may give references to online files for an internet radio station. M3U8(MP3 URL that uses  UTF-8-encoding)is a computer file format for a multimedia playlist.Although originally designed for audio files, such as MP3, it is now used to point  both audio and video sources

Gstreamer Plugin Information


root@raspber-rdk-hybrid-westeros:~# gst-inspect-1.0 aamp
Factory Details:
Rank                   marginal (64)
Long-name              Advanced Adaptive Media Player
Klass                  Demux
Description            Advanced Adaptive Media Player
Author                 Comcast
 
 
Plugin Details:
Name                 aamp
Description          Advanced Adaptive Media Player
Filename             /usr/lib/gstreamer-1.0/libgstaampplugin.so
Version              0.0.1
License              Proprietary
Source module        RDK
Binary package       aamp
Origin URL           https://rdkcentral.com/

root@raspberrypi-rdk-hybrid-westeros:~# gst-inspect-1.0 aampsrc
Factory Details:
Rank               primary (256)
Long-name          AAMP Source
Klass              Source
Description        Advanced Adaptive Media Player Source
Author             Comcast
 
Plugin Details:
Name              aamp
Description       Advanced Adaptive Media Player
Filename         /usr/lib/gstreamer-1.0/libgstaampplugin.so
Version          0.0.1
License          Proprietary
Source module    RDK
Binary package   aamp
Origin URL       https://rdkcentral.com/

HLS Playback using AAMP

Playbintest

This utility is available in /usr/bin  to test aamp plugin which by default takes aamp HLS  as aamps://tungsten.aaplimg.com/VOD/bipbop_adv_example_v2/master.m3u8 

#/usr/bin/playbintest

gst-launch 

AAMP can be tested with gst-launch using playbin.

#gst-launch-1.0 playbin uri=aamp://devimages.apple.com/iphone/samples/bipbop/bipbopall.m3u8 video-sink=westerossink audio-sink=omxhdmiaudiosink

WPELauncher 

AAMP can be tested with WPELauncher. Please make sure environmental variables are set.

#export LD_PRELOAD=$LD_PRELOAD:/usr/lib/libopenmaxil.so:/usr/lib/libwayland-client.so.0
#export WAYLAND_DISPLAY=WPE
#export XDG_RUNTIME_DIR=/run/user/0/
#WPELauncher http://127.0.0.1/player.html

Pipeline Diagram


DEBUG Logs

To Enable logs,please export following 

export GST_DEBUG=2,aamp:3,webkitmediaplayer:5

Sample HLS URL

aamp://devimages.apple.com/iphone/samples/bipbop/bipbopall.m3u8
aamps://tungsten.aaplimg.com/VOD/bipbop_adv_example_v2/master.m3u8

aamps://mnmedias.api.telequebec.tv/m3u8/29880.m3u8 

aamp://184.72.239.149/vod/smil:BigBuckBunny.smil/playlist.m3u8 


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