Sony BDP-S370 lan stuttering - request for user settable socket buffer sizes

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Issue #162 resolved
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Using 0.4.1 of serviio and the the Sony BDP-S370 Blu-ray Player, I see stuttering on high definition movies even when delivered over a hardwired lan network. The same movie plays without problems when placed on a usb device and played.

So I would like to request that a user settable feature be added to allow the socket buffer size for both send and recv to be manually changed to help prevent the stuttering problems.

My own system allows socket buffer sizes of up to 2 meg which is much higher than the 65K currently used by serviio.

Perhaps in a config xml file.



Comments (12)

  1. Former user Account Deleted


    The stuttering is definitely a network speed issue. If I simply press pause immediately after starting to play, and wait, the play goes on perfectly until the amount downloaded has been used up (when I must hit pause again).

    So the rate being read in by the Sony player exceeds the rate at which the server can deliver the data to the player via the lan.

    I have upgraded to cat 6 cables to make sure the cables were not at fault. Same problem.

    Would it be possible to get a hacked class file that uses 1 meg for the send and recv buffers just for testing with, so I can make sure that the socket buffer sizes really are the issue. I can unpack the serviio.jar and replace the class with the hacked version to run the test if you could make one available.



  2. Former user Account Deleted

    Having the same problem here - would appreciate just a test class with the bigger buffer for testing/quick resolution purposes...

  3. Former user Account Deleted

    can't stream a single thing in 1080p without hitting stuttering. no transcoding here.

  4. Former user Account Deleted

    I am very curious regarding the feedback from the beta testers, did the settable socket buffer solve the problem?

  5. Former user Account Deleted

    I am also interested in the trial outcome as if I try and stream much above 5mbps then I also get the stuttering problem (Sony - BD-S570)

  6. patters

    I tested this with 64KB (default) 128KB and 32KB with mkv over wifi and it didn't seem to make any difference to the stuttering which is present, even at bitrates the same files remuxed to m2ts can handle. The difference being that mkv is requested by the player in incremental 32768 byte ranges whereas m2ts is requested with a byte range "0-" - i.e. continuous. The player still stutters very badly after a seek in mkv.

    What's the maximum buffer size? Should I aim higher? Also, Zip - does the 0.5 release support these parameters?

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