资产编码:管理HLS/DASH配置文件 [英] Asset encoding : manage HLS/DASH profile
问题描述
我是使用Azure Media Services的初学者.
I'm a beginner to use Azure Media Services.
我能够上传mp4资产文件，对其进行编码并发布以进行HLS/DASH流传输.
I'm able to upload mp4 asset file, encode it and publish it for HLS/DASH streaming.
最后，我获得了分段时间轴MPD/M3U8清单文件.
Finally I obtain segment timeline MPD/M3U8 manifest files.
<MPD xmlns="urn:mpeg:dash:schema:mpd:2011" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" profiles="urn:mpeg:dash:profile:isoff-live:2011" type="static" mediaPresentationDuration="PT36M42.048S" minBufferTime="PT7S">
...
< SegmentTemplate timescale ="10000000"； media ="QualityLevels($ Bandwidth $)/Fragments(video = $ Time $，format = mpd-time-csf)"初始化="QualityLevels($ Bandwidth $)/Fragments(video = i，format = mpd-time-csf)"< SegmentTimeline>< SD ="60000000". r ="366"/>
<SegmentTemplate timescale="10000000" media="QualityLevels($Bandwidth$)/Fragments(video=$Time$,format=mpd-time-csf)" initialization="QualityLevels($Bandwidth$)/Fragments(video=i,format=mpd-time-csf)"><SegmentTimeline><S d="60000000" r="366"/>
是否可以配置编码或发布步骤以获得按需范围的单个文件清单文件?
Is it possible to configure encoding or publishing step in order to obtain an on-demand range single file manifest file ?
类似这样的东西:
<MPD xmlns="urn:mpeg:dash:schema:mpd:2011" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:mpeg:dash:schema:mpd:2011 DASH-MPD.xsd" profiles="urn:mpeg:dash:profile:isoff-on-demand:2011" minBufferTime="PT2S" type="static" mediaPresentationDuration="PT2202S">
...
< BaseURL> video/content.mp4</BaseURL> < SegmentBase indexRange ="868-14111"； timescale ="96"> <初始化范围＝"0-867"/> </SegmentBase>
<BaseURL>video/content.mp4</BaseURL> <SegmentBase indexRange="868-14111" timescale="96"> <Initialization range="0-867"/> </SegmentBase>
另一个问题，是否可以管理段大小?
Another question, is it possible to manage segment size ?
在测试过程中，我无法找到一种方法来设置另一个6秒
During my test I am not able to find a way to set another than 6 seconds.
-盖洛德-
- Gaylord -
推荐答案
For restricting the delivered bitrates and/or time ranges, you can use the concept of Filters. See this article for examples.
关于细分受众群的大小，今天只有 支持进行实时流式传输.
As for segment size, today this is only supported for live streaming.
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