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UDP NET_ADMIN error on Android app

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Gregoire Gentil
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UDP NET_ADMIN error on Android app

Gregoire Gentil
Hello,

I'm using gstreamer 1.16.2 in an Android app built with API version 29
and NDK 21.1. I'm running that app on Android TV 9 with kernel 4.1.

I get the strange error message:

03-21 19:10:46.896  9080  9223 W GStreamer+udpsrc: 0:00:10.827964588
0xd1507750 ../gst/udp/gstudpsrc.c:1447:gst_udpsrc_open:<udpsrc0>
warning: Could not create a buffer of requested 524288 bytes (Operation
not permitted). Need net.admin privilege?

03-21 19:10:46.897  9080  9223 W GStreamer+udpsrc: 0:00:10.828812588
0xd1507750 ../gst/udp/gstudpsrc.c:1457:gst_udpsrc_open:<udpsrc0> have
udp buffer of 262144 bytes while 524288 were requested

03-21 19:10:51.996  9080  9223 W GStreamer+rtspsrc: 0:00:15.928045518
0xd1507750
../gst/rtsp/gstrtspsrc.c:5771:gst_rtspsrc_reconnect:<rtspsrc0> warning:
Could not receive any UDP packets for 5.0000 seconds, maybe your
firewall is blocking it. Retrying using a tcp connection.

03-21 19:11:13.472  9080  9223 W GStreamer+rtspsrc: 0:00:37.404373634
0xd1507750
../gst/rtsp/gstrtspsrc.c:5560:gst_rtspsrc_loop_interleaved:<rtspsrc0>
error: Could not receive message. (System error)

03-21 19:11:13.474  9080  9223 W GStreamer+rtspsrc: 0:00:37.406002134
0xd1507750 ../gst/rtsp/gstrtspsrc.c:6056:gst_rtspsrc_loop:<rtspsrc0>
error: Internal data stream error.

03-21 19:11:13.474  9080  9223 W GStreamer+rtspsrc: 0:00:37.406265426
0xd1507750 ../gst/rtsp/gstrtspsrc.c:6056:gst_rtspsrc_loop:<rtspsrc0>
error: streaming stopped, reason error (-5)

03-21 19:11:13.495  9080  9223 W GStreamer+default: 0:00:37.427520719
0xd1507750 ../gst-libs/gst/rtsp/gstrtspconnection.c:1234:write_bytes
Operation was cancelled

03-21 19:11:13.496  9080  9223 W GStreamer+rtspsrc: 0:00:37.427919303
0xd1507750 ../gst/rtsp/gstrtspsrc.c:6402:gst_rtspsrc_try_send:<rtspsrc0>
send interrupted

03-21 19:11:13.496  9080  9223 W GStreamer+rtspsrc: 0:00:37.428175428
0xd1507750 ../gst/rtsp/gstrtspsrc.c:8650:gst_rtspsrc_pause:<rtspsrc0>
PAUSE interrupted

03-21 19:11:13.503  9080  9223 W GStreamer+default: 0:00:37.435170178
0xd1507750 ../gst-libs/gst/rtsp/gstrtspconnection.c:1234:write_bytes
Error sending data: Broken pipe

03-21 19:11:13.503  9080  9223 W GStreamer+rtspsrc: 0:00:37.435540720
0xd1507750 ../gst/rtsp/gstrtspsrc.c:6400:gst_rtspsrc_try_send:<rtspsrc0>
error: Could not send message. (System error)

03-21 19:11:13.504  9080  9223 W GStreamer+rtspsrc: 0:00:37.436036929
0xd1507750 ../gst/rtsp/gstrtspsrc.c:8075:gst_rtspsrc_close:<rtspsrc0>
error: Could not send message. (System error)

My pipeline is:

rtspsrc latency=250 location=rtsp://10.10.10.1:81 ! rtph264depay ! queue
! h264parse ! mpegpsmux ! filesink

NET_ADMIN privilege is only for system app. Obviously, the device is not
rooted. I'm confused why I get such udpsrc error. Note that the second
line of the log indicates that it can't get a 512kB buffer but it can
get a 256kB. Has anyone got an idea?

Grégoire
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Gregoire Gentil
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Re: UDP NET_ADMIN error on Android app

Gregoire Gentil
Hello,

I have added udp-buffer-size=262144 to my pipeline and the net_admin
permission problem disappears. But now, I'm getting:

PermissionCache: checking android.permission.ACCESS_SURFACE_FLINGER for
uid=10075 => denied (2263 us)

It's like Android wants to get a system app to do video via GStreamer on
Android TV. Any clue what's going on?

Grégoire




On 3/22/21 6:29 PM, Gregoire Gentil wrote:

> Hello,
>
> I'm using gstreamer 1.16.2 in an Android app built with API version 29
> and NDK 21.1. I'm running that app on Android TV 9 with kernel 4.1.
>
> I get the strange error message:
>
> 03-21 19:10:46.896  9080  9223 W GStreamer+udpsrc: 0:00:10.827964588
> 0xd1507750 ../gst/udp/gstudpsrc.c:1447:gst_udpsrc_open:<udpsrc0>
> warning: Could not create a buffer of requested 524288 bytes (Operation
> not permitted). Need net.admin privilege?
>
> 03-21 19:10:46.897  9080  9223 W GStreamer+udpsrc: 0:00:10.828812588
> 0xd1507750 ../gst/udp/gstudpsrc.c:1457:gst_udpsrc_open:<udpsrc0> have
> udp buffer of 262144 bytes while 524288 were requested
>
> 03-21 19:10:51.996  9080  9223 W GStreamer+rtspsrc: 0:00:15.928045518
> 0xd1507750
> ../gst/rtsp/gstrtspsrc.c:5771:gst_rtspsrc_reconnect:<rtspsrc0> warning:
> Could not receive any UDP packets for 5.0000 seconds, maybe your
> firewall is blocking it. Retrying using a tcp connection.
>
> 03-21 19:11:13.472  9080  9223 W GStreamer+rtspsrc: 0:00:37.404373634
> 0xd1507750
> ../gst/rtsp/gstrtspsrc.c:5560:gst_rtspsrc_loop_interleaved:<rtspsrc0>
> error: Could not receive message. (System error)
>
> 03-21 19:11:13.474  9080  9223 W GStreamer+rtspsrc: 0:00:37.406002134
> 0xd1507750 ../gst/rtsp/gstrtspsrc.c:6056:gst_rtspsrc_loop:<rtspsrc0>
> error: Internal data stream error.
>
> 03-21 19:11:13.474  9080  9223 W GStreamer+rtspsrc: 0:00:37.406265426
> 0xd1507750 ../gst/rtsp/gstrtspsrc.c:6056:gst_rtspsrc_loop:<rtspsrc0>
> error: streaming stopped, reason error (-5)
>
> 03-21 19:11:13.495  9080  9223 W GStreamer+default: 0:00:37.427520719
> 0xd1507750 ../gst-libs/gst/rtsp/gstrtspconnection.c:1234:write_bytes
> Operation was cancelled
>
> 03-21 19:11:13.496  9080  9223 W GStreamer+rtspsrc: 0:00:37.427919303
> 0xd1507750 ../gst/rtsp/gstrtspsrc.c:6402:gst_rtspsrc_try_send:<rtspsrc0>
> send interrupted
>
> 03-21 19:11:13.496  9080  9223 W GStreamer+rtspsrc: 0:00:37.428175428
> 0xd1507750 ../gst/rtsp/gstrtspsrc.c:8650:gst_rtspsrc_pause:<rtspsrc0>
> PAUSE interrupted
>
> 03-21 19:11:13.503  9080  9223 W GStreamer+default: 0:00:37.435170178
> 0xd1507750 ../gst-libs/gst/rtsp/gstrtspconnection.c:1234:write_bytes
> Error sending data: Broken pipe
>
> 03-21 19:11:13.503  9080  9223 W GStreamer+rtspsrc: 0:00:37.435540720
> 0xd1507750 ../gst/rtsp/gstrtspsrc.c:6400:gst_rtspsrc_try_send:<rtspsrc0>
> error: Could not send message. (System error)
>
> 03-21 19:11:13.504  9080  9223 W GStreamer+rtspsrc: 0:00:37.436036929
> 0xd1507750 ../gst/rtsp/gstrtspsrc.c:8075:gst_rtspsrc_close:<rtspsrc0>
> error: Could not send message. (System error)
>
> My pipeline is:
>
> rtspsrc latency=250 location=rtsp://10.10.10.1:81 ! rtph264depay ! queue
> ! h264parse ! mpegpsmux ! filesink
>
> NET_ADMIN privilege is only for system app. Obviously, the device is not
> rooted. I'm confused why I get such udpsrc error. Note that the second
> line of the log indicates that it can't get a 512kB buffer but it can
> get a 256kB. Has anyone got an idea?
>
> Grégoire
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