<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <style type="text/css" style="display:none;"></style> </head> <body dir="ltr"> <div id="divtagdefaultwrapper" style="font-size:12pt;color:#000000;background-color:#FFFFFF;font-family:Calibri,Arial,Helvetica,sans-serif;"> <div id="divtagdefaultwrapper" style="font-size:12pt;color:#000000;background-color:#FFFFFF;font-family:Calibri,Arial,Helvetica,sans-serif;"> <p>Hi</p> <br> I recently came across the same problem and got round it by adding a meta-data tag 'bits-per-sample' and setting it in the wav, flac, alac and aiff parsers.</div> <div id="divtagdefaultwrapper" style="font-size:12pt;color:#000000;background-color:#FFFFFF;font-family:Calibri,Arial,Helvetica,sans-serif;"> <br> </div> <div id="divtagdefaultwrapper" style="font-size:12pt;color:#000000;background-color:#FFFFFF;font-family:Calibri,Arial,Helvetica,sans-serif;"> The patches are attached. bits-per-sample applies to gstreamer1.0, aiff-bits-per-sample-tag applies to gstreamer1.0-plugins-bad, alac-flac-wav-bits-per-sample-tag applies to gstreamer1.0-plugins-good.</div> <div id="divtagdefaultwrapper" style="font-size:12pt;color:#000000;background-color:#FFFFFF;font-family:Calibri,Arial,Helvetica,sans-serif;"> <br> </div> <div id="divtagdefaultwrapper" style="font-size:12pt;color:#000000;background-color:#FFFFFF;font-family:Calibri,Arial,Helvetica,sans-serif;"> Hope that helps,</div> <div id="divtagdefaultwrapper" style="font-size:12pt;color:#000000;background-color:#FFFFFF;font-family:Calibri,Arial,Helvetica,sans-serif;"> <br> </div> <div id="divtagdefaultwrapper" style="font-size:12pt;color:#000000;background-color:#FFFFFF;font-family:Calibri,Arial,Helvetica,sans-serif;"> Jonathan<br> <div style="color: rgb(0, 0, 0);"> <div> <hr style="display:inline-block; width:98%" tabindex="-1"> <div id="x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> gstreamer-devel <gstreamer-devel-bounces@lists.freedesktop.org> on behalf of Arun Raghavan <arun@arunraghavan.net><br> <b>Sent:</b> 14 July 2016 07:49<br> <b>To:</b> Discussion of the development of and with GStreamer<br> <b>Subject:</b> Re: Bit depth in the container format vs. in the output</font> <div> </div> </div> </div> <font size="2"><span style="font-size:10pt;"> <div class="PlainText">On Wed, 13 Jul 2016, at 07:08 PM, Carlos Rafael Giani wrote:<br> > Hello,<br> > <br> > there is a problem with displaying file type information. Suppose I want <br> > to show a file's bit depth on screen. The intuitive solution is to use <br> > the caps that come out of a uridecodebin for example, and look at its <br> > format value. But this can be misleading.<br> > <br> > For example, if in a system, avdec_flac is used instead of flacdec, then <br> > the format value will be S32LE even if the actual internal FLAC data <br> > format is S24_32LE. So now all of a sudden the display shows "32 bit", <br> > even though "24 bit" is more correct.<br> > <br> > This is even visible with gst-discoverer. If you have a 24-bit FLAC <br> > file, and run gst-discoverer-1.0 -v <flacfile> , the output with flacdec <br> > present is:<br> > <br> > Channels: 2<br> > Sample rate: 192000<br> > Depth: 24<br> > Bitrate: 0<br> > Max bitrate: 0<br> > <br> > but with flacdec missing (so only avdec_flac is available) it is:<br> > <br> > Channels: 2<br> > Sample rate: 192000<br> > Depth: 32<br> > Bitrate: 0<br> > Max bitrate: 0<br> > <br> > So, the correct way to do this is to get the caps that *flacparse* <br> > outputs, and not the decoder's. However, I have no clue how to do that, <br> > or even how to communicate such information to the application properly. <br> > There is no tag that can hold a GstCaps instance.<br> > <br> > Any ideas?<br> <br> At one point we had toyed with the idea of having a "shallow" mode in<br> GstDiscoverer -- basically get it to stop at the point of plugging a<br> parser. Perhaps this is worth resurrecting?<br> <br> -- Arun<br> _______________________________________________<br> gstreamer-devel mailing list<br> gstreamer-devel@lists.freedesktop.org<br> <a href="https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" id="LPlnk329076">https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a><br> </div> </span></font></div> </div> </div> <br /> <br /> Audio Partnership PLC, Gallery Court, Hankey Place, London SE1 4BB, UK Reg No. 2953313 This e-mail is confidential and for the addressee only. Please refer to <a href="http://www.audiopartnership.com/AP-disclaimer.php">Disclaimer</a> for important notices. </body> </html>