Harmonic ELECTRA VS, User Manual

Page: 343 / 604

Chapter 3 ’Web User Graphical Interface’ — Workflow Library
Electra VS - Version 05.10 343
User Manual - Rev. A
Example: if Media URI Name : MyCustomMediaURIName,
Media URI Separator : - , Media URI field 1 : Media type ,
Media URI field 2 : Media URI Name , Media URI field 3 :
Stream Id , the manifest file will be (excerpt):
...
NAME="audio_esp1",...,URI=" Audio-MyCustomMediaURIName-2.
m3u8
" for the first audio
NAME="audio_fra2",...,URI=" Audio-MyCustomMediaURIName-6.
m3u8
" for the second audio
BANDWIDTH=845857,..., Video-MyCustomMediaURIName-1.m3u8
for the video with the first bitrate profile (845857bps)
BANDWIDTH=1129247,..., Video-MyCustomMediaURIName-3.m3u8
for the video with the second bitrate profile (1129247bps)
...
 HLS Protocol version : choose one version:
 Version 2 : suitable for programs with only one audio language.
The generated chunks contain both video and audio
components.
 Version 3 : same as version 2 with durations in ms.

Version 4 : mandatory for programs with more than one audio
language. Video and audio components are not in the same
chunks (only one component per chunk). This version may be
not supported by old devices.
 Version 5 : lets you have subtitles in WebVTT format.

Create I-frame only streams ( HLS Protocol version 4 or 5 ): if set
to true , an I-frame only stream is added per video defined in the
manifest. The I-frame only stream references I-frames in existing
video media segments. It allows the player to perform fast forward
and rewind operations.
 Add low bitrate audio only stream : if set to true , chunks that
contain only the audio component are generated.
Set the Audio only stream ID , Audio only stream media order
and Audio only NAME attribute in #EXT-X-STREAM-INF
parameters as indicated in section ’Input Tab’ on page 347.
 Available stream duration : depth in seconds of chunks that are
available on the Web server. The minimum duration must be equal to
the length of at least two chunks.
 Activate directory rollover: if set to true , sub-directories named
Rollover_X are created. Each directory contains a Segments
number per directory corresponding to the fixed duration. The
sub-directories and the chunks are deleted after the available stream
duration set above, if stored in the local web server.