During a video stream, how can i get chunk size

Question

Hi,I need to get what's the byte size for a downloaded chunk.... what's the way?Have you some suggestion?Thanks

RokuMarkn · Answer

What do you mean by "chunk" in this context?  And why do you need to know the size?--Mark

ToNyT · Answer

Hi Mark,if you think that my post is in a wrong section, please, move this thread to the correct place.I need to know the size for debugging utilities.Running a smooth streaming session, i wont' know, what's the size (byte) of a downloaded chunk. I find this project on githubhttps://github.com/belltown/Roku-NewVideoPlayer/blob/master/source/Utils.brsTake a look on line 602, we find it: IsDownloadSegmentInfo, and on line 611 we can find:  _debug ("SegSize:          " + info.SegSize.ToStr (), "&gt;     ")Can i suppose that "IsDownloadSegmentInfo", and "SegSize", give us info about chunks?I read some values ​​, but I do not know what they mean.Functions used in this project are available on roku, but nothing is described on official documentation:https://sdkdocs.roku.com/dosearchsite.action?where=sdkdoc&amp;spaceSearch=true&amp;queryString=IsDownloadSegmentInfoHow can i get chunk size info ?if you have any suggestions please let me knowThanks

belltown · Answer

"ToNyT" wrote:Hi Mark,if you think that my post is in a wrong section, please, move this thread to the correct place.I need to know the size for debugging utilities.Running a smooth streaming session, i wont' know, what's the size (byte) of a downloaded chunk. I find this project on githubhttps://github.com/belltown/Roku-NewVideoPlayer/blob/master/source/Utils.brsTake a look on line 602, we find it: IsDownloadSegmentInfo, and on line 611 we can find:  _debug ("SegSize:          " + info.SegSize.ToStr (), "&gt;     ")Can i suppose that "IsDownloadSegmentInfo", and "SegSize", give us info about chunks?I read some values ​​, but I do not know what they mean.Functions used in this project are available on roku, but nothing is described on official documentation:https://sdkdocs.roku.com/dosearchsite.action?where=sdkdoc&amp;spaceSearch=true&amp;queryString=IsDownloadSegmentInfoHow can i get chunk size info ?if you have any suggestions please let me knowThanksroVideoScreenEvent and roVideoPlayerEvent contain these undocumented event types: 31 - IsDownloadSegmentInfo(), and 37 - IsSegmentDownloadStarted(). I'm not sure why they're undocumented. I've found them useful for debugging HLS streams. You can figure out the event fields from the GitHub file you linked to.IsDownloadSegmentInfo() does contain the size of each downloaded HLS segment. I'm not sure whether it would apply to smooth streams as well. You could try it and see.

ToNyT · Answer

"belltown" wrote:"ToNyT" wrote:Hi Mark,if you think that my post is in a wrong section, please, move this thread to the correct place.I need to know the size for debugging utilities.Running a smooth streaming session, i wont' know, what's the size (byte) of a downloaded chunk. I find this project on githubhttps://sdkdocs.roku.com/dosearchsite.action?where=sdkdoc&amp;spaceSearch=true&amp;queryString=IsDownloadSegmentInfoHow can i get chunk size info ?if you have any suggestions please let me knowThanksroVideoScreenEvent and roVideoPlayerEvent contain these undocumented event types: 31 - IsDownloadSegmentInfo(), and 37 - IsSegmentDownloadStarted(). I'm not sure why they're undocumented. I've found them useful for debugging HLS streams. You can figure out the event fields from the GitHub file you linked to.IsDownloadSegmentInfo() does contain the size of each downloaded HLS segment. I'm not sure whether it would apply to smooth streams as well. You could try it and see.Hi belltown,i have tryed to play an&nbsp;ism,&nbsp;stream format, using your Git code.That's the Manifest link:http://playready.directtaps.net/smooths ... m/ManifestUpdating the search link on documentation ( https://sdkdocs.roku.com/display/sdkdoc/roVideoScreen#roVideoScreen-SupportedInterfaces i have found info about ism support, so i modified categories.xml file in your code, to play that contents.&nbsp;Starting the video i read this for example:...uiPlayVideo. roVideoScreenEvent [31]-isDownloadSegmentInfo. Message: Download segment info. Index: 58. Data: 0&nbsp; &nbsp; &nbsp;Sequence: &nbsp; &nbsp; &nbsp; &nbsp; 58&nbsp; &nbsp; &nbsp;Status: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 0&nbsp; &nbsp; &nbsp;SegBitrate: &nbsp; &nbsp; &nbsp; 2962&nbsp; &nbsp; &nbsp;DownloadDuration: 535&nbsp; &nbsp; &nbsp;SegUrl: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; http://playready.directtaps.net/smoothstreaming/SSWSS720H264/SuperSpeedway_720.ism/QualityLevels(2962000)/Fragments(video=1161160000)&nbsp; &nbsp; &nbsp;SegSize: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;831499&nbsp; &nbsp; &nbsp;BufferSize: &nbsp; &nbsp; &nbsp; 0&nbsp; &nbsp; &nbsp;BufferLevel: &nbsp; &nbsp; &nbsp;0&nbsp; &nbsp; &nbsp;SegType: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;2--uiPlayVideo. roVideoScreenEvent [31]-isDownloadSegmentInfo. Message: Download segment info. Index: 59. Data: 0&nbsp; &nbsp; &nbsp;Sequence: &nbsp; &nbsp; &nbsp; &nbsp; 59&nbsp; &nbsp; &nbsp;Status: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 0&nbsp; &nbsp; &nbsp;SegBitrate: &nbsp; &nbsp; &nbsp; 2962&nbsp; &nbsp; &nbsp;DownloadDuration: 535&nbsp; &nbsp; &nbsp;SegUrl: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; http://playready.directtaps.net/smoothstreaming/SSWSS720H264/SuperSpeedway_720.ism/QualityLevels(2962000)/Fragments(video=1181180000)&nbsp; &nbsp; &nbsp;SegSize: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;846702&nbsp; &nbsp; &nbsp;BufferSize: &nbsp; &nbsp; &nbsp; 0&nbsp; &nbsp; &nbsp;BufferLevel: &nbsp; &nbsp; &nbsp;0&nbsp; &nbsp; &nbsp;SegType: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;2-...You said: "I'm not sure whether it would apply to smooth streams as well". &nbsp;Why do you think so?

belltown · Answer

"ToNyT" wrote:"belltown" wrote:"ToNyT" wrote:Hi Mark,if you think that my post is in a wrong section, please, move this thread to the correct place.I need to know the size for debugging utilities.Running a smooth streaming session, i wont' know, what's the size (byte) of a downloaded chunk. I find this project on githubhttps://sdkdocs.roku.com/dosearchsite.action?where=sdkdoc&amp;spaceSearch=true&amp;queryString=IsDownloadSegmentInfoHow can i get chunk size info ?if you have any suggestions please let me knowThanksroVideoScreenEvent and roVideoPlayerEvent contain these undocumented event types: 31 - IsDownloadSegmentInfo(), and 37 - IsSegmentDownloadStarted(). I'm not sure why they're undocumented. I've found them useful for debugging HLS streams. You can figure out the event fields from the GitHub file you linked to.IsDownloadSegmentInfo() does contain the size of each downloaded HLS segment. I'm not sure whether it would apply to smooth streams as well. You could try it and see.Hi belltown,i have tryed to play an&nbsp;ism,&nbsp;stream format, using your Git code.That's the Manifest link:http://playready.directtaps.net/smooths ... m/ManifestUpdating the search link on documentation ( https://sdkdocs.roku.com/display/sdkdoc/roVideoScreen#roVideoScreen-SupportedInterfaces i have found info about ism support, so i modified categories.xml file in your code, to play that contents.&nbsp;Starting the video i read this for example:...uiPlayVideo. roVideoScreenEvent [31]-isDownloadSegmentInfo. Message: Download segment info. Index: 58. Data: 0&nbsp; &nbsp; &nbsp;Sequence: &nbsp; &nbsp; &nbsp; &nbsp; 58&nbsp; &nbsp; &nbsp;Status: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 0&nbsp; &nbsp; &nbsp;SegBitrate: &nbsp; &nbsp; &nbsp; 2962&nbsp; &nbsp; &nbsp;DownloadDuration: 535&nbsp; &nbsp; &nbsp;SegUrl: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; http://playready.directtaps.net/smoothstreaming/SSWSS720H264/SuperSpeedway_720.ism/QualityLevels(2962000)/Fragments(video=1161160000)&nbsp; &nbsp; &nbsp;SegSize: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;831499&nbsp; &nbsp; &nbsp;BufferSize: &nbsp; &nbsp; &nbsp; 0&nbsp; &nbsp; &nbsp;BufferLevel: &nbsp; &nbsp; &nbsp;0&nbsp; &nbsp; &nbsp;SegType: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;2--uiPlayVideo. roVideoScreenEvent [31]-isDownloadSegmentInfo. Message: Download segment info. Index: 59. Data: 0&nbsp; &nbsp; &nbsp;Sequence: &nbsp; &nbsp; &nbsp; &nbsp; 59&nbsp; &nbsp; &nbsp;Status: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 0&nbsp; &nbsp; &nbsp;SegBitrate: &nbsp; &nbsp; &nbsp; 2962&nbsp; &nbsp; &nbsp;DownloadDuration: 535&nbsp; &nbsp; &nbsp;SegUrl: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; http://playready.directtaps.net/smoothstreaming/SSWSS720H264/SuperSpeedway_720.ism/QualityLevels(2962000)/Fragments(video=1181180000)&nbsp; &nbsp; &nbsp;SegSize: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;846702&nbsp; &nbsp; &nbsp;BufferSize: &nbsp; &nbsp; &nbsp; 0&nbsp; &nbsp; &nbsp;BufferLevel: &nbsp; &nbsp; &nbsp;0&nbsp; &nbsp; &nbsp;SegType: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;2-...You said: "I'm not sure whether it would apply to smooth streams as well". &nbsp;Why do you think so?Because I haven't personally tried it with smooth streams, and because at the time there was no documentation for IsDownloadSegmentInfo. It looks like they added the documentation after I posted about its omission, although I can't tell for sure because this stupid new forum theme doesn't have posting dates any more. From what you posted, it looks like it's working though.

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During a video stream, how can i get chunk size

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