MPEG4/AVC (exact mediainfo below) files do not play via Networkshare, but do play fine through a non-transcoding Mediaserver. How can this be? I thought either the WD TV Live understands a format or it does not?
The other day I was trying to play movies taken with a new Sony Powershot Camera. I uploaded the pictures to my NAS, which runs Twonky UPnP Mediaserver v6. However, since it takes a while for the Mediaserver to recognize new files, I accessed the folder through the network share, but the files would not play (just a black screen for a few seconds per file, but not the message that the format is incomprehensible!). A day later, I tried to play them through the Mediaserver and to my surprise it worked just fine. I know that Twonky Mediaserver v6 can transcode in principle, but the feature is greyed, according to the NAS manufacturer because my specific NAS model has a too weak processor to do this (sounds very reasonable).
So why do they play via the server, but not through the shared network folder? The movie files exist only once on the NAS, and playing other files directly through network share (such as large iso files) works just fine for me.
Here is the mediainfo output for one of the videos:
General Complete name : /mediafolder/MVI_4522.MOV Format : MPEG-4 Format profile : QuickTime Codec ID : qt File size : 55.3 MiB Duration : 19s 300ms Overall bit rate : 24.0 Mbps Encoded date : UTC 2011-04-24 07:41:36 Tagged date : UTC 2011-04-24 07:41:36 Video ID : 1 Format : AVC Format/Info : Advanced Video Codec Format profile : Baseline@L4.1 Format settings, CABAC : No Format settings, ReFrames : 1 frame Codec ID : avc1 Codec ID/Info : Advanced Video Coding Duration : 19s 300ms Bit rate mode : Variable Bit rate : 23.3 Mbps Width : 1 280 pixels Height : 720 pixels Display aspect ratio : 16:9 Frame rate mode : Constant Frame rate : 30.000 fps Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Progressive Bits/(Pixel*Frame) : 0.844 Stream size : 53.7 MiB (97%) Language : English Encoded date : UTC 2011-04-24 07:41:36 Tagged date : UTC 2011-04-24 07:41:36 Color primaries : BT.709-5, BT.1361, IEC 61966-2-4, SMPTE RP177 Transfer characteristics : BT.709-5, BT.1361 Matrix coefficients : BT.601-6 525, BT.1358 525, BT.1700 NTSC, SMPTE 170M Audio ID : 2 Format : PCM Format settings, Endianness : Little Format settings, Sign : Signed Codec ID : sowt Duration : 19s 300ms Bit rate mode : Constant Bit rate : 705.6 Kbps Channel(s) : 1 channel Sampling rate : 44.1 KHz Bit depth : 16 bits Stream size : 1.62 MiB (3%) Language : English Encoded date : UTC 2011-04-24 07:41:36 Tagged date : UTC 2011-04-24 07:41:36