Forum Discussion

RokuKevin's avatar
RokuKevin
Visitor
15 years ago

Audio / Video Interleave past 30/60 min video

One of the root causes of the playback stopping after 30 to 60 min is that the encoding has an insufficient audio / video interleave for the Roku to handle.

v2.9 should alleviate most of the audio / video interleave issues, and we'd like to test against some more content that previously had this issue.

I've already been collecting serial numbers for the "squished video" issue, but if you'd also like to give us feedback about the "stops playing after 30 to 60 min" issue we'd welcome more testing.

--Kevin
Roku Developer Program
  • renojim's avatar
    renojim
    Community Streaming Expert
    15 years ago
    I remember when I had the problem of buffering after 30 to 60 min it was because, I think, the video was encoded at other than 29.97 fps. Is this related in any way?

    -JT
  • RokuKevin's avatar
    RokuKevin
    Visitor
    15 years ago
    This fix is to be more tolerant of audio/video interleave skew. We have done nothing to address the framerate issues.

    --Kevin
  • em_lazardo's avatar
    em_lazardo
    Visitor
    15 years ago
    "em.lazardo" wrote:
    Most tools seem to not sample at a sufficient depth or duration to accurately determine frame rate, esp. for NTSC film source.

    "RokuKevin" wrote:
    ... We have done nothing to address the framerate issues.

    Different issue. Handbrake would occasionally select the wrong framerate based on scanning source content different than the main feature [like ads, warnings, etc]. Since I couldn't determine that this mismatch didn't impact audio sync, I left both checks in my encode chain.

    Cheers,
  • bcl's avatar
    bcl
    Channel Surfer
    15 years ago
    I had problems with pretty much every Handbrake preset except the iPod High one. I re-encoded everything using that so I don't have any problems currently.