My problem seens to be simple but im having some problem on resolving it. Im streaming audio but when i use an alaw decoder the size of the audio packets that arrive at my appsink are enormous (something like 10k each buffer) and this is giving me some problems, i want to determine the size of the buffers that arrives at appsink, but appsink blocksize property seens to be completely useless, and the filesrc / gnomevfssrc blocksize seens to be useless to, the size os my buffers dont change when i use blocksize. It is interesting that when i use decodebin on adpcm ima the size of the buffers are small (great for me), it seens that someone on decodebin for ima adpcm does this for me, but i cant do it on alaw decoding. i started to try some things and i noticed this: gst-launch audiotestsrc ! progressreport ! appsink this launch will report 5 seconds each, but if i run this gst-launch audiotestsrc ! progressreport ! appsink sync=false it will report thousands of seconds each buffer. It has something to do with the clock but im not being able to control it. can someone give me a lead on the best way to determine the size of the arriving buffer on my appsink ? best regards Katcipis -- "it might be a profitable thing to learn Java, but it has no intellectual value whatsoever" Alexander Stepanov