The size of rtspLoaderWrappers must match the number of tracks exposed by the
RTSP session (a track is exposed if its media description entry appears in
DESCRIBE's SDP response).
When retrying with TCP, the old code will start loading all exposed RTSP
tracks, regardless of whether they are selected.
The fixed code will only start loading selected tracks.
#minor-release
PiperOrigin-RevId: 377931030
The current code does not catch the IAE thrown when building a MediaDescription
or SessionDescription. This CL catches the IAE and propagates it as a
ParserException.
Issue: #9014.
PiperOrigin-RevId: 377544439
The old version's retry logic will not work if using authentication.
Specifically, we use the same authentication parameters from the previous
session, and the RTSP server will reject such parameter.
In this fix, we reset the authentication info on retry. Further, we retry the
last request on receiving a 401 Unauthorized, rather than sending out another
DESCRIBE request.
#minor-release
PiperOrigin-RevId: 377539711
Related to Issue: #8941.
RTSP message body's format is not regulated by the RTSP spec, meaning it can
use either CRLF or LF as its line terminator. The old code assumes every line
ends with CRLF (RTSP message and the message body); the new code will rely on
the Content-Length information to receive the bytes for the message body.
#minor-release
PiperOrigin-RevId: 377475565
Related to: Issue: #9010
Profile-level-id (Format.codecs) can be generated from SPS if SDP does not
include it.
#minor-release
PiperOrigin-RevId: 377251211
Authentication sequence in RTSP:
- Server replies "Unauthorized" to our DESCRIBE request, and includes the
necessary information (i.e. realm, digest nonce, etc) in WWW-Authenticate
header
- After `RtspClient` receives the response, we
- Parse the WWW-Authenticate header, stores the auth info. The info is saved
for all further RTSP requests (that all need to carry authorization headers)
- send the second DESCRIBE request with the Authorization header.
#minor-release
PiperOrigin-RevId: 376116302
The method openSocket in RtspMessageChannel does not actually open a socket.
The 'open' term refers more to opening the message channel.
#minor-release
PiperOrigin-RevId: 375908999
The callbacks received RTSP messages and RTSP sending errors are now invoked
directly from RtspMessageChannel's internal threads. It's up to the handler
implementation to decide which thread to handle the messages.
#minor-release
PiperOrigin-RevId: 375908282
Previously, RTSP interleaved binary data is posted onto the playback thread
for handling, the playback thread then adds the received data to a queue.
A loader thread will later dequeue the data and process it.
In this CL, the binary data is sent through a separate listener, on
RtspMessageChannel's RTSP receiving thread.
#minor-release
PiperOrigin-RevId: 375907609
NAT will block off incoming UDP connection because the router has no knowledge
of the necessary port mapping (the mapping is never set up because UDP is
connectionless).
The end result is, the UDP socket to receive RTP data will timeout. After the
`SocketTimeoutException` is caught, the following takes place to try streaming
with TCP (or, RTP over RTSP).
- `RtspClient` sends TEARDOWN to tear down the current session.
- `RtspClient` re-connect to the RTSP server.
- `RtspMediaPeriod` cancels all loading `RtpDataLoadables` (that are using UDP)
- `RtspMediaPeriod` constructs new `RtpDataLoadables` that use
`TransferRtpDataChannel`, and starts loading.
- Once the `RtpDataLoadables` are up and running, we are ready to receive.
`RtspClient` sends the SETUP requests.
- The rest of the flow is unchanged.
#minor-release
PiperOrigin-RevId: 373310774
RTSP interleaving enables RTP packets to be sent using RTSP's TCP connection.
The interleaving RTSP messages contain binary data only and always start with a
'$'. Normal RTSP messages contain line breaks (CRLFs) that indicate complete
lines.
#minor-release
PiperOrigin-RevId: 372990181
- Don't deprecate methods not deprecated in the base class and that
could one day be useful.
- Better document deprecation of other methods.
#minor-release
PiperOrigin-RevId: 372919080
In RtpDataLoadable.load, the second UDP data source is opened on the port we
specify. If the port is already in use, a BindException is thrown.
#minor-release
PiperOrigin-RevId: 371319522
Previously loadingFinished will never be set to true because it started in
false, and we are and'ing it with `canceled`.
#minor-release
PiperOrigin-RevId: 370662456
