> here's already an iec958 plugin, does that not handle it? No that only supports formating AC3/DTS data into iec958 frames for transmission to a spdif sink, not the other way around. Ok, once I find the time I'll try putting together some patches. Neil <div class="gmail_extra"> <div class="gmail_quote">On Thu, Dec 6, 2012 at 6:48 PM, Michael Smith <<a href="mailto:mlrsmith@gmail.com" target="_blank">mlrsmith@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="im">On Thu, Dec 6, 2012 at 6:52 AM, Neil Jones <<a href="mailto:neiljay@gmail.com">neiljay@gmail.com</a>> wrote: > Hi, > > Im having issue with typefind correctly detecting Dolby audio. > > AC3: > > If im using a normal big-endian ac3 file then typefind works, but if I try > capturing AC3 from a spif input the data is little-endain and has big chunks > of zeros in it (as its transported as 2 channel 48Khz 16bit PCM accross > spdif), typefind and aacparse fail to recognise this audio, if i manually > pipe this audio into my decoder (with out gstreamer) it plays it fine. > Should typefind / aacparse be able to deal with this data ? I had considered > writing an iec958-src component which detect the incoming data type PCM / > AC3/ DTS and strips out the zeros, has anyone done anything like this ? > </div>There's already an iec958 plugin, does that not handle it? I'm not sure how detectable (without a lot of false positives) that format is - if I'm wrong about that, implementing a typefinder for it sounds great. <div class="im"> > EAC3: > > I cannot get typefind to detect eac3 files correclty at all, using the dolby > test sample 'eac3sample12.eac3' from dolby conformance test suite as an > example (I can probably upload this somewhere once i check its ok to do so), > it reports the file as: </div>Probably nobody had enough sample files to implement this properly. You should write a patch to typefind to add an appropriate typefinder for this. Mike _______________________________________________ gstreamer-devel mailing list <a href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a> <a href="http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" target="_blank">http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a> </blockquote></div> </div>