HDS manifest

Wowza Streaming Engine
1 
<manifest xmlns="http://ns.adobe.com/f4m/1.0">
<id>xxxxxx.smil</id>
<width>640</width>
<height>360</height>
<mimeType>video/mp4</mimeType>
<streamType>live</streamType>
<deliveryType>streaming</deliveryType>
<bootstrapInfo id="bootstrap550" profile="named" url="playlist_b550.abst"/>
<media bootstrapInfoId="bootstrap550" width="480" height="270" bitrate="1" url="media_u510vn7la_b550.abst/">
<metadata>
AgAKb25NZXRhRGF0......
</metadata>
</media>
<bootstrapInfo id="bootstrap1050" profile="named" url="playlist_b1050.abst"/>
<media bootstrapInfoId="bootstrap1050" width="640" height="360" bitrate="1" url="media_um7gdk4fu_b1050.abst/">
<metadata>
AgAKb25NZXRhRGF......
</metadata>
</media>
</manifest>

coming from this smil

<smil>
    <head>
    </head>
    <body>
        <switch>
                 <video src="0_iuivnpkc_1.stream" system-bitrate="550"/>
                 <video src="0_iuivnpkc_2.stream" system-bitrate="1050"/>
        </switch>
    </body>
</smil>

on Wowza Media Server 3 Monthly Edition 3.6.2 build5334

Why is the bitrate calculated as “1” on both? Doesnt look right.

2

I’m not sure. In my test with smil pointing to file, and smil pointing to a MediaCaster stream, I get correct bitrate values in the manifest.f4m. Even with the MediaCaster source turned off the manifest.f4m returns the correct bitrate. It is possible applying the latest patch will help.

Richard

3

Sorry, missed it myself. The system-bitrate is in bits, not kbits. Change them to “768000” and “384000”

Richard

4

Hello,

Can you upgrade your server to the latest Wowza release? The current Wowza version is 3.6.3 and there were lots of issues fixed since 3.1.1.

Here is the link with the upgrade instructions: https://www.wowza.com/docs/wowza-streaming-engine-software-updates

Please let us know if you are experiencing the same problem after the upgrade.

Zoran

5

I am having a similar issue on a system running Wowza 3.1.1

The smil file for live stream:

The HDS manifest for live stream

live-stream-8.smil

1280

720

video/mp4

live

streaming

AgAKb25NZXRhRGF0YQgAA…AAJAAAJ

AgAKb25NZXRhR…JAAAJAAAJ

The bitrate is calculated as 1 in both cases leading to dynamic switching not working

Is there a workaround or a fix ?

The playlist.m3u8 has correct values

#EXTM3U

#EXT-X-VERSION:3

#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=768,CODECS=“avc1.66.31,mp4a.40.2”,RESOLUTION=1280x720

chunklist-b768.m3u8?wowzasessionid=420593433

#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=384,CODECS=“avc1.66.30,mp4a.40.2”,RESOLUTION=640x360

chunklist-b384.m3u8?wowzasessionid=420593433

6

I tried steps mentioned in Readme file in the WowzaMediaServer-3.x.x-3.6.3 package Still I am getting bitrate as 1.

live-stream-10.smil

1280

720

video/mp4

live

streaming

AgAKb25NZ…AAAJAAAJ

AgAKb…AAJAAAJ

Few things to mention here. I am using a trail license for live streaming.