[Bug 781135] aacparse: incorrect sampling rate in ADTS header for SBR streams

GStreamer (GNOME Bugzilla) bugzilla at gnome.org
Mon Apr 10 13:59:39 UTC 2017


https://bugzilla.gnome.org/show_bug.cgi?id=781135

--- Comment #3 from A Ashley <bugzilla at ashley-family.net> ---
To test the patch, you can use the following command:

gst-launch-1.0 -m filesrc location=HEAAC_96K.m4a ! qtdemux ! aacparse !
"audio/mpeg, stream-format=adts" ! identity silent=false dump=true ! fakesink

The start of each GstBuffer is the 7 bytes of the ADTS header. The first three
bytes should be 0xFF 0xF1 0x58 (which is 24KHz in the sample rate index field).
However without the patch, the value is 0xFF 0xF1 0x4e (which is 48KHz).

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