Dear Jens, After checking the pipe when I use pipe 2 to verification. 2. gst-launch-0.10 -v http://192.168.1.3:9000/disk/DLNA-PNAAC_ISO-OP01-FLAGS01700000/O0$1$8I2829.m4a ! qtdemux ! ffdec_aac ! audioconvert ! audio/x-raw-int,width=16 ! alsasink
in the c code :gst-plugins-base-0.10.36/gst-libs/gst/audio/gstaudiosink.c, function audioringbuffer_thread_func(), the thread will read audio data from ring buffer, then write to audio sink. I write the data that read from ring buffer to local usb disk. And check the file, it contents silence data after 1 second. I have write the e-mail to the mail-list thanks! 2013/12/5 Jens Georg <[email protected]> > > If it's breaking with pure gst-launch, the issue is out of scope of this > mailinglist and rygel and probably better to discuss with the GStreamer > people. > > Could be anything... > > Hi all, >> >> My my target platform is CPU is 400MHz, system memory is 32MB, CPU >> is lexra (MIPS like). >> >> the media Info of audio file is : >> 431Kbps, 44.1Khz, 2 channel, AAC(LC) >> >> originally , I play AAC file by Rygel DLNA protocol. No sound after 1 >> second after AAC decode. >> In advance I try to use the pipe below to verify, >> >> the pipe I used for verification: >> 1. gst-launch-0.10 >> -v http://192.168.1.3:9000/disk/DLNA-PNAAC_ISO-OP01- >> FLAGS01700000/O0$1$8I2829.m4a >> [1] ! qtdemux ! ffdec_aac ! audioconvert ! audio/x-raw-int,width=16 ! >> filesink location=/var/tmp/usb/sda1/aac_test.pcm >> >> 2. gst-launch-0.10 >> -v http://192.168.1.3:9000/disk/DLNA-PNAAC_ISO-OP01- >> FLAGS01700000/O0$1$8I2829.m4a >> [1] ! qtdemux ! ffdec_aac ! audioconvert ! audio/x-raw-int,width=16 ! >> alsasink >> >> In the pipe 1 , the output file /var/tmp/usb/sda1/aac_test.pcm can be >> played normally. >> In the pipe 2, the output from usb sound card can not be hear normally >> after about 1 seconds. >> >> Does anyone have any idea about the issue? >> >> Links: >> ------ >> [1] >> http://192.168.1.3:9000/disk/DLNA-PNAAC_ISO-OP01- >> FLAGS01700000/O0$1$8I2829.m4a >> >
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