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#26 Sony Bravia AVC support

closed-accepted
nobody
None
5
2011-01-18
2011-01-09
Andy Jenkinson
No

Attached is a patch to enable selective adjustment of DLNA profile information when serving to Sony BRAVIA televisions. These 2010 models natively support AVC playback in TS containers, but require the files to be listed with specific profiles.

As I was making this mod, it seems nona99 posted a similar solution, which works by altering the stored metadata for affected video files. By contrast, this patch directly amends the SOAP response on the fly when a BRAVIA television is detected. That means it shouldn't break anything for other DLNA clients.

Discussion

  • Andy Jenkinson
    Andy Jenkinson
    2011-01-09

     
    Attachments
  • Andy Jenkinson
    Andy Jenkinson
    2011-01-09

    I forgot to mention: the check for a BRAVIA TV searches the "X-AV-Client-Info" header for a "BRAVIA" string. This is reliable but fairly wide (note that it's more specific than the other model-specific catches already in the code). If this adversely affects future BRAVIA models (which seems unlikely) then a more specific check could be made. I know it affects model numbers like:
    "BRAVIA KDL-##*X###"
    e.g. "BRAVIA KDL-40EX503"
    e.g. "BRAVIA KDL-32EX500"
    e.g. "BRAVIA KDL-40NX600"
    It probably affects more than this though.

     
  • Justin Maggard
    Justin Maggard
    2011-01-18

    Can you post the output from mediainfo on one of those files? I believe that DLNA profile should be for files with a 50i frame rate.

     
  • Andy Jenkinson
    Andy Jenkinson
    2011-01-18

    As I understand it, the profile to substitute is not actually important, it just needs to match one of the Bravia's so that the TV will list it and attempt to play it. However I think the AVC_TS_HD_50_AC3 profile (for example) is intended for 50p files. There are equivalents for 60p but, as I say, it makes no difference which is used.

    Below is a 720p file that now works with the mod:

    General
    ID : 1 (0x1)
    Complete name : /Users/aj/Movies/TV Shows/Battlestar Galactica 4/12 - A Disquiet Follows My Soul (ts).ts
    Format : MPEG-TS
    Format/Info : Advanced Video Codec
    File size : 1.14 GiB
    Duration : 43mn 5s
    Overall bit rate : 3 802 Kbps

    Video
    ID : 4113 (0x1011)
    Menu ID : 1 (0x1)
    Format : AVC
    Format/Info : Advanced Video Codec
    Format profile : High@L4.1
    Format settings, CABAC : Yes
    Format settings, ReFrames : 3 frames
    Codec ID : 27
    Duration : 43mn 5s
    Bit rate mode : Variable
    Bit rate : 3 243 Kbps
    Maximum bit rate : 40.0 Mbps
    Width : 1 280 pixels
    Height : 720 pixels
    Display aspect ratio : 16:9
    Frame rate : 23.976 fps
    Color space : YUV
    Chroma subsampling : 4:2:0
    Bit depth : 8 bits
    Scan type : Progressive
    Bits/(Pixel*Frame) : 0.147
    Stream size : 994 MiB (85%)
    Writing library : x264 core 65 r1037tw
    Encoding settings : cabac=1 / ref=3 / deblock=1:0:0 / analyse=0x3:0x133 / me=hex / subme=6 / psy_rd=1.0:0.0 / mixed_ref=0 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / chroma_qp_offset=-2 / threads=6 / nr=0 / decimate=1 / mbaff=0 / bframes=3 / b_pyramid=1 / b_adapt=2 / b_bias=0 / direct=3 / wpredb=1 / keyint=240 / keyint_min=24 / scenecut=40(pre) / rc=2pass / bitrate=3243 / ratetol=1.0 / qcomp=0.60 / qpmin=10 / qpmax=51 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / ip_ratio=1.40 / pb_ratio=1.30 / aq=1:1.0

    Audio
    ID : 4352 (0x1100)
    Menu ID : 1 (0x1)
    Format : AC-3
    Format/Info : Audio Coding 3
    Mode extension : CM (complete main)
    Codec ID : 129
    Duration : 43mn 5s
    Bit rate mode : Constant
    Bit rate : 384 Kbps
    Channel(s) : 6 channels
    Channel positions : Front: L C R, Side: L R, LFE
    Sampling rate : 48.0 KHz
    Bit depth : 16 bits
    Compression mode : Lossy
    Stream size : 118 MiB (10%)
    Language : English

     
  • Justin Maggard
    Justin Maggard
    2011-01-18

    • status: open --> closed-accepted
     
  • Justin Maggard
    Justin Maggard
    2011-01-18

    Thanks for the details. I've checked in your patch.