RTSP stream for android devices

[John Ruemker]

Hmmm, ok.  (Yes they're from the android device).  Would that be a 
problem with the pipeline on the server side, or something on the client 
that I need to define the caps explicitly?

Sorry, I'm a n00b.  Thanks for your help.

-John

On 08/16/2012 01:29 PM, Loren Rogers wrote:
> If the log is from the Android device, what it looks like is that the
> Android device is missing the caps negotiation (probably SDP) that's
> sent from the RTSP server.  OR the Android device is trying to open a
> file with poorly formed stream information.
>
> On Thu, Aug 16, 2012 at 1:15 PM, John Ruemker <john.ruemker at gmail.com> wrote:
>> I was wondering if the alawenc audio encoder is the problem, considering the
>> android doc states you should use AAC-LC.  However if I try to switch to
>> ffenc_aac I can't get a stream that even vlc will play.  I'm not really sure
>> with rtp payloader goes with ffenc_aac.  So ultimately, I decided to just
>> remove the audio stream for now and see if I could get video working.  VLC
>> plays it fine, but android still won't, so the issue is likely somewhere in
>> the x264enc part.
>>
>> The logs from the android MediaPlayer and VideoView classes are not very
>> specific.
>>
>>
>> 08-16 13:12:39.320: D/OpenGLRenderer(30587): Flushing caches (mode 0)
>> 08-16 13:12:39.350: D/OpenGLRenderer(30587): Flushing caches (mode 1)
>> 08-16 13:12:45.555: D/libEGL(30783): loaded /system/lib/egl/libEGL_mali.so
>> 08-16 13:12:45.555: D/libEGL(30783): loaded
>> /system/lib/egl/libGLESv1_CM_mali.so
>> 08-16 13:12:45.560: D/libEGL(30783): loaded
>> /system/lib/egl/libGLESv2_mali.so
>> 08-16 13:12:45.635: D/OpenGLRenderer(30783): Enabling debug mode 0
>> 08-16 13:12:45.645: D/MediaPlayer(30783): Couldn't open file on client side,
>> trying server side
>> 08-16 13:12:45.800: D/MediaPlayer(30783): getMetadata
>> 08-16 13:12:45.905: E/MediaPlayer(30783): error (1, -2147483648)
>> 08-16 13:12:45.905: E/MediaPlayer(30783): Error (1,-2147483648)
>> 08-16 13:12:45.905: D/VideoView(30783): Error: 1,-2147483648
>>
>> I guess I'll have to try and play around with the resolution, bitrates, etc
>> as you pointed out and see if I can make any progress there.
>>
>>
>> Thanks for your help.
>>
>> -John
>>
>>
>> On 08/16/2012 12:35 PM, Chuck Crisler wrote:
>>
>> I am not sure about the default x264enc parameters, but you need to insure
>> that it is using baseline, width/height/frame/bit rates all as specified by
>> the android. I suspect that the defaults are not what the Android wants and
>> probably if any is wrong the Android would reject it but VLC will deal with
>> it. Can you get a log from the Android to see what it doesn't like?
>>
>> On Thu, Aug 16, 2012 at 11:51 AM, John Ruemker <john.ruemker at gmail.com>
>> wrote:
>>> On 08/15/2012 12:00 PM, John Ruemker wrote:
>>>> Hello,
>>>> I am trying to figure out a way to take a local video which may be in one
>>>> of a few different formats (mkv, mp4, avi) and create an rtsp stream that
>>>> can be viewed by android devices.  I've been playing around with
>>>> gstreamer-rtsp-server, and using the test-readme.c example can create a
>>>> stream from an mkv that is watchable in vlc, but android cannot process it:
>>>>
>>>>    gst_rtsp_media_factory_set_launch(factory, "( "
>>>>    "filesrc location=/home/user/project/spider.mkv ! "
>>>>    "decodebin name=dec dec. ! queue ! x264enc ! "
>>>>    "rtph264pay name=pay0 pt=96 dec. ! queue ! audioresample ! audioconvert
>>>> ! "
>>>>    "alawenc ! rtppcmapay name=pay1 pt=97 "
>>>>    ")");
>>>>
>>>> I'm guessing the way its encoded is not supported by android:
>>>>
>>>>
>>>> http://developer.android.com/guide/appendix/media-formats.html#recommendations
>>>>
>>>> While I have done a good bit of reading through the gstreamer docs and
>>>> understand pipelines and such, I'll admit I don't know much about formats
>>>> and codecs.  What sort of pipeline should I use to encode the video and
>>>> audiostreams such that an android device would be able to play it back, per
>>>> the requirements listed in the above link?
>>>>
>>>> Thanks for your help.
>>>>
>>>> -John
>>>
>>> Hi,
>>> Anyone have any ideas on the above?  I'm just not sure how to go about
>>> encoding to meet the requirements that are laid out in the Android
>>> development guide.  Any assistance would be greatly appreciated.
>>>
>>> Thanks
>>>
>>> -John
>>> _______________________________________________
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>>> gstreamer-devel at lists.freedesktop.org
>>> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>>
>>
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