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Bug 729362 - Can't play AAC from RTSP stream
Can't play AAC from RTSP stream
Status: RESOLVED INCOMPLETE
Product: GStreamer
Classification: Platform
Component: gst-plugins-bad
git master
Other Linux
: Normal normal
: NONE
Assigned To: GStreamer Maintainers
GStreamer Maintainers
Depends on:
Blocks:
 
 
Reported: 2014-05-01 22:07 UTC by Olivier Crête
Modified: 2016-02-21 23:13 UTC
See Also:
GNOME target: ---
GNOME version: ---


Attachments
aac file (8.25 KB, application/octet-stream)
2014-05-01 22:07 UTC, Olivier Crête
Details
tcpdump capture file (96.42 KB, application/cap)
2014-05-01 22:07 UTC, Olivier Crête
Details
pcap file from VLC (728.00 KB, application/cap)
2014-05-01 22:14 UTC, Olivier Crête
Details

Description Olivier Crête 2014-05-01 22:07:14 UTC
Created attachment 275580 [details]
aac file

I have a Ambarella hardware encoder here that produces a RTSP stream. We can't play the AAC with either faad or avdec_aac, indeed sounds suspect. Attaching streams just in case.

I extracted the raw AAC from the pcap file using:

gst-launch-1.0 -v filesrc location=rtsp.pcap ! pcapparse src-ip=192.168.1.117 src-port=50000 dst-port=55240 ! application/x-rtp, media=audio, payload=98, clock-rate=48000, encoding-name=MPEG4-GENERIC, encoding-params='(string)1', streamtype='(string)5', profile-level-id='(string)41', mode=AAC-hbr, config='(string)1188', sizelength='(string)13', indexlength='(string)3', indexdeltalength='(string)3', profile='(string)1', a-type=broadcast, x-qt-text-inf=stream1, npt-start=0, play-speed=1, play-scale=1 ! rtpmp4gdepay ! aacparse ! filesink location=rtsp.aac
Comment 1 Olivier Crête 2014-05-01 22:07:47 UTC
Created attachment 275581 [details]
tcpdump capture file
Comment 2 Olivier Crête 2014-05-01 22:14:35 UTC
Created attachment 275582 [details]
pcap file from VLC

Connecting to the same server from VLC, it produces a AAC stream that doesn't break  (but that seems empty!)
Comment 3 Sebastian Dröge (slomo) 2014-05-02 07:41:34 UTC
Can any other software like avplay, mplayer or vlc handle it properly?
Comment 4 Tim-Philipp Müller 2016-02-21 23:13:01 UTC
The attached .aac file plays fine for me, it's basically just silence with background noise. Unclear if that's what it's supposed to be or not, but VLC plays the same.

Not sure if there's more to do here - Olivier?

Closing this bug report as no further information has been provided. Please feel free to reopen this bug report if you can provide the information that was asked for in a previous comment.
Thanks!