How to send Image bytes over SIP Body

[David Salvador]

Hello guys, 

I'm trying to send an Image Thumbnail in a SIP INVITE using JAIN SLEE.

I'm using gov.nist.javax.sip.message.MultipartMimeContent, and what i'm doing is something like this: 

bytes[] imageBytes = ... //get bytes from image.

String type[] = {"application", "image"};

String subtype[] = {"sdp", "jpeg"};

String content[] = new String[2];

content[0] = sdp.toString();

content[1] = new String(imageBytes, "UTF-8");

MultipartMimeContent mmc = mfactory.createMultipartMimeContent(cth, type, subtype, content);

invite.setContent(mmc, cth);

dialog.sendRequest(invite);

and the result is:

INVITE sip:9...@open-ims.test SIP/2.0

Call-ID: 921b1bb75652d057...@10.39.40.194

CSeq: 4657 INVITE

From: <tel:92;phone-context=open-ims.test>;tag=72f96dc5

To: <sip:9...@open-ims.test>

Via: SIP/2.0/UDP 10.39.40.194:5090;branch=z9hG4bK-383338-ae45f2406b55e410d141dd200e9a18a3

Max-Forwards: 70

Content-Type: multipart/related;type=application/sdp;boundary=boundary22

Allow: PRACK,INFO,INVITE,ACK,BYE,CANCEL,UPDATE,SUBSCRIBE,NOTIFY,REFER,MESSAGE,OPTIONS

Supported: replaces,100rel,timer,norefersub

Accept-Contact: *;+g.3gpp.cs-voice;+g.3gpp.iari-ref="urn%3Aurn-7%3A3gpp-application.ims.iari.gsma-is"

Contribution-ID: a841504e-abaf-4403-a42f-c297a8b1dcf1

Contact: <sip:10.39.40.194:5090;transport=udp>

Content-Length: 6699

--boundary22

Content-Type: application/sdp

v=0

o=user null null IN IP4 10.39.40.194

s=-

c=IN IP4 10.39.40.194

t=0 0

m=message 50345 TCP/MSRP *

a=path:msrp://10.39.40.194:50345/I21023c9;tcp

a=accept-types:*

a=setup:active

a=sendonly

a=file-selector:name:"bazinga.jpg" size:91902 type:image/jpeg

a=file-transfer-id:17hmdmg9m95cgrsnq2i05go56u

a=file-disposition:render

a=file-range:1-91902

a=file-icon:cid:f0e21544-7e4c-4b91...@open-ims.test

--boundary22

Content-Type: image/jpeg

JFIFC

 $.' ",#(7),01444'9=82<.342C 2!!22222222222222222222222222222222222222222222222222T"

}!1AQa"q2#BR$3br

%&'()*456789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz

w!1AQaq"2B #3Rbr

$4%&'()*56789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz?m_z<>I`Sr}M%4dJ(>SIE.O'Q@h4P2}M%>SIE.O'Q@i?RiU*(w4QPvQfVK6>5

6k<O&/X1*:fU=f\0|~61@Oyo^y-nR8G~~xWUoXq3nnU$nhazm5Z'6Qldm@zU0F9fFZw-%iV~XfX_olp q[K^Hdx+1>fOWI"mOSvD@xXu{q.9~{[omtN\?CevFC?.9Zuq&dsF$vFV7~:=*Q#UbNp3s'XZr{n=<&kw^z1hz!] s7nFk/5R}BkV%Di(q_6RCwQ z.n|3lz<W5Leyc)Q.sJ3+E.n]5mX|8]o\-*nXh*9&m;z~UPt[ QvEc_s

+Tom+r(*}>+>_F-EZsE`TysX=XZ:rIYWRG79L}fWMo:ogRRT|>cKkOizy,qA]$]gf2"%c88?J] Hmfmr @r9?1lB+IPudv?9z/2|[|+?kGd"~*[w5W6R0.}r8:!Se%q-l"?v3Km/e}~ao28#:1+*pVq|]^n_%svF&s,59G=mai?4U\DI#ytrj&kXf|9*go5sX<YhCgimsf-"g>FW_RjRKiWX+#KgZ[GxU?5}=YPuWi#H|FVt{ThZal$1y^oOkol!A:\K(xJT'5[{wwVti1MfpLY!F;|zZ+kLzl>y.#2*DCz`G{n_R@FXI#pzU+v{A<z-HAy5x~?sm|.]=|F>Vi}_KgKywH!BN:sT2O-"\FIIW*qP]_qeG

mj]zQTwkZ(h[U~6Ph

#%bEm?AYBJ`gERmMEuI-R8Kda6zn(>{i"uUELGU@hkv+vgs)b(N4*\%()[]e5iV_jM_I'mJu?H}NMA`krFG`dgi/|5M;x.Tg'h4t

o[=&4aNqCcciVJ36a? wJTx8XY7e<R)%iHCp*Axs>;e;=}It?{QKC<~~ciiv7R][iJwIp#G>?,>2ygjotr7sV3)eO6lxQ> cFHF{|Cvh$I3="sPWg^WURy'j3[&G\3GD#EE

uNr?Lha J)>_QE`QEM7ZWe;*(QEU;:nl%zI#P'%g:w Ko@'B8+B_ZLCVd\/~_bs\T97;B<

(QEQEM7ZWechEIR<4Q@)}MP/_SEyKhER<4Q@)}MP/_SEyKhE^b_{Z(lqU

--boundary22--

this looks pretty good, however, all the caracters that represent the image are parsed as text, and not as bytes... is there anyway i can actual send the bytes and not a string? 

Thanks in advance for all the help

David Salvador

[David Salvador]

Got it, the solution was to add the bytes to the content and not the string itself. 

Something like: 

SessionDescription sdp = (sdp part of the invite);

byte [] image = getImageBytes();

byte[] content = sdp.getBytes()+image (of course you can not add bytes, but the ideia is this)

invite.setContent(content, contentHeader);

[Jean Deruelle]

That's right. Thanks David for sharing back the solution.

Jean

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