Low quality video ads

Jason Dhindsa

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Jun 19, 2020, 4:51:27 PM6/19/20

to Interactive Media Ads SDK

Hello,

I am currently integrating the IMA SDK into my video player iOS and tvOS applications and have noticed that when I set the IMAAdsRenderingSettings' bitrate property to kIMAAutodetectBitrate, I'm getting ads in a very low video quality and can't figure out why. As a test, I even set the bitrate property to a high number such as 6,000 and when I receive 3 ads back the first one will play in high quality (~5000 kbps) but the subsequent ones will play in lower quality.

I can't figure out what the IMA SDK is doing as far as determining what the bitrate should be. Can someone advise?

The issue is related to the tvOS platform more so than iOS.

Thank you,
Jason

IMA SDK

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Jun 20, 2020, 12:03:10 AM6/20/20

to jasond...@gmail.com, ima...@googlegroups.com

Hi Jason,

Thank you for reaching out to us. The bitrate when set to a value, this value is the maximum recommended bitrate. The value is in kbit/s. The SDK will pick media with bitrate below the specified max, or the closest bitrate if there is no media with smaller bitrate found. When you set your bitrate to the default value, |kIMAAutodetectBitrate|, it means the bitrate will be selected by the SDK, using the currently detected network speed (cellular or Wi-Fi). It sounds like between the first and the subsequent requests your network quality dropped to a level that lead the SDK to pick a media file which bitrate is low enough. I would also recommend that you monitor the subsequent ads' VAST XML as they might not contain any media file that would deliver a high quality video on tvOS.

Regards,
Arnaud Casame
IMA SDK Team

ref:_00D1U1174p._5004Q217t54:ref

Geethu Rajasekharan

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Feb 3, 2025, 8:43:13 AMFeb 3

to Interactive Media Ads SDK

Hi,

I had figured out that the bitrate field is a maximum bitrate setting. However the core problem of forcing the SDK to select the highest possible bitrate(Or any acceptable resolution variant) still remains. How can we get the IMA SDK to do this?

Thanks and Regards,
Geethu

IMA SDK

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Feb 20, 2025, 7:43:09 AMFeb 20

to geeth...@gmail.com, ima...@googlegroups.com

Hi Geethu,

Thank you for contacting the IMA SDK support team.

As suggested earlier, the SDK selects the optimal bitrate based on the device's network conditions.The value is in kbit/s. The SDK will pick media with bitrate below the specified max, or the closest bitrate if there is no media with lower bitrate found. Default value, -1, means the SDK selects the maximum bitrate. Setting the maximum bitrate using "AdsRenderingSettings " is the only way to control this behavior and ensure that the SDK respects your desired bitrate limit.

Please ensure that only one thread is maintained for same query.

Thanks,

IMA SDK Team

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[2025-02-20 07:42:58Z GMT] This message is in relation to case "ref:!00D1U01174p.!5004Q0217t54:ref" (ADR-00039303)

Kaue Castro

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Feb 24, 2025, 4:12:41 PMFeb 24

to Interactive Media Ads SDK

Hello,

Does the mimeTypes property follow the same logic? I'm testing the bitrate and mimeType in some low end devices (example: LG 2017 and 2018) and trying to find ways to avoid buffering. I'm setting the bitrate to a lower value, but would like to ask if setting the mimeTypes to only mp4 can improve the performance as well. Also, what are the impactes of it? I mean, it really helps? Should we ask the ad provider to inject the proper format?

Kaue.

IMA SDK

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Feb 24, 2025, 9:38:19 PMFeb 24

to ima...@googlegroups.com

Hi,

This issue is identified, where IMA is choosing the lowest bitrate media file, even in cases where a higher bitrate should be feasible. We are looking into a fix for the issue and I will let you know on this thread about any progress with the issue.

Thanks,

IMA SDK Team

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