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Bug 600454 - aacparse detecting aac file as mpegversion=2 instead of 4
aacparse detecting aac file as mpegversion=2 instead of 4
Product: GStreamer
Classification: Platform
Component: gst-plugins-bad
git master
Other Linux
: Normal normal
: 0.10.17
Assigned To: GStreamer Maintainers
GStreamer Maintainers
Depends on:
Reported: 2009-11-02 17:22 UTC by kapil
Modified: 2009-11-16 16:34 UTC
See Also:
GNOME target: ---
GNOME version: ---

AAC test stream (39.11 KB, audio/mp4)
2009-11-02 17:22 UTC, kapil

Description kapil 2009-11-02 17:22:38 UTC
Created attachment 146765 [details]
AAC test stream

Attached 10kHz_0dBfs_L+R_aacPlus_32.aac getting detected as mpegversion=2 file
instead of mpegversion=4
Comment 1 Mark Nauwelaerts 2009-11-16 15:03:03 UTC
The first ADTS header sequence is:
FF F9 5C 80
(and subsequent ones also start with FF F9).

According to ADTS specs, this means it is mpegversion = 2.
Comment 2 kapil 2009-11-16 16:18:03 UTC
ah weired, vlc & mplayer plays it well.
Comment 3 Mark Nauwelaerts 2009-11-16 16:34:27 UTC
So does e.g. totem.