Typefind is not able to determine AAC-LATM stream correctly

Sudhir vndkst at yahoo.com
Tue Apr 8 23:20:46 PDT 2014


Hi All,
I am trying to decode AAC-LATM audio elementary stream, avdec_aac is not
able to decode the stream as stream-format is detected as loas by typefind.
I have given pipeline dumps below and input can be downloaded from
http://goo.gl/QGCP1E . 

Why latm stream-format is detected as loas? 

gst-launch filesrc location=aac_latm.aac ! decodebin ! fakesink -v

/GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstTypeFindElement:typefind.GstPad:src:
caps = audio/mpeg, framed=(boolean)false, mpegversion=(int)4,
stream-format=(string)loas

/GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstTypeFindElement:typefind.GstPad:src:
caps = NULL
/GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstAacParse:aacparse0.GstPad:src:
caps = audio/mpeg, framed=(boolean)true, mpegversion=(int)4,
rate=(int)44100, channels=(int)2, stream-format=(string)loas
/GstPipeline:pipeline0/GstDecodeBin:decodebin0/avdec_aac_latm:avdec_aac_latm0.GstPad:sink:
caps = audio/mpeg, framed=(boolean)true, mpegversion=(int)4,
rate=(int)44100, channels=(int)2, stream-format=(string)loas

I am able to decode adts stream without any issue.

Thanks in Advance
Sudhir



--
View this message in context: http://gstreamer-devel.966125.n4.nabble.com/Typefind-is-not-able-to-determine-AAC-LATM-stream-correctly-tp4666368.html
Sent from the GStreamer-devel mailing list archive at Nabble.com.


More information about the gstreamer-devel mailing list