fmtp parser: checks parameterPair.length before accessing parameterPair[1]

[nodinosaur]

MediaDescription.getFmtpParametersAsMap() can throw an ArrayIndexOutOfBoundsException with RTSP feeds.

Error thrown

java.lang.ArrayIndexOutOfBoundsException: length=1; index=1          
at androidx.media3.exoplayer.rtsp.MediaDescription.getFmtpParametersAsMap(MediaDescription.java:394) 

attributes sent as follows:

96 packetization-mode=1;profile-level-id=4D4028;sprop-parameter-sets=Z01AKJ2oHgCJ+WEAAAMAAQAAAwAehA==,aO48gA==

then

0 PCMA/8000

passes

checkArgument(fmtpComponents.length == 2, fmtpAttributeValue);

but would fail

formatParametersBuilder.put(parameterPair[0], parameterPair[1]);

as parameterPair[1] does not exist.
This code checks parameterPair.length before accessing parameterPair[1]

Catching this issue enables the RTSP stream to play with no issue.

[gemini-code-assist]

Important

The terms of service for this installation has not been accepted. Please ask the Organization owners to visit the Gemini Code Assist Admin Console to sign it.