Add handling of SDP session level attributes for:
- `monologue_subscribe_request()`
- `monologue_subscribe_answer()`
This will be used by `janus.c` related functionality.
Change-Id: I1c50b5b9da08e7d8cb2c98eb6995d8610386d6ed
Move `a=extmap:` attribute to the `call_media`'s
`sdp_attributes` using `stream_params`.
Required by the `insert_sdp_attributes()` used in `sdp_create()`.
Additionally revert `extmap` unit test checks in the
`testVideoroomWebRTCVideo`.
Change-Id: If63e4e8733ea0899f34fae1f1d38997e9e2c081c
Move `a=ssrc-group:` attribute to the `call_media`'s
`sdp_attributes` using `stream_params`.
Required by the `insert_sdp_attributes()` used in `sdp_create()`.
Change-Id: I67025dc83dd8e5e46422b6dc1bc54aa9c838dfea
We have to move the list of attributes with following types
to the `call_media`'s `sdp_attributes` using `stream_params`:
ATTR_SSRC
ATTR_MSID
ATTR_OTHER
This is then required by the `insert_sdp_attributes()`
used by:
- `sdp_replace()` -> `replace_sdp_media_section()`
- `sdp_create()`
Additionally: move the `insert_sdp_attributes()`
to the usage of the `append_attr_to_gstring()`, which
gives SDP attrs manipulations control over attributes
being inserted into SDP. Previously not supported.
Additionally: `process_media_attributes()` takes new
argument `bool strip_attr_other`, in order to control
whether or not to strip `ATTR_OTHER/ATTR_SSRC/ATTR_MSID`.
For now there is only one user of it `replace_sdp_media_section()`,
but for later on, we can control this using this bool.
Additionally: `print_sdp_media_section()` takes new
argument `bool print_other_attrs`, in order to control
whether or not to strip `ATTR_OTHER/ATTR_SSRC/ATTR_MSID`.
This is required, because the sdp replacing/creating mechanism
needs a controllable way of adding them, users are:
- `janus_videoroom_join()`
`janus_videoroom_configure()` - always need them
- `call_publish_ng` - always needs them
- `call_subscribe_request_ng` - never needs them
(otherwise leads to a duplication of such attributes)
- `call_offer_answer_ng()` - requires them always
- `call_subscribe_request_ng()` - never needs them
(otherwise leads to a duplication of such attributes)
Change-Id: I9c83d99da1603acb55443c462797b2cd1e72477d
Fix all instances of argument-less function signatures.
Fix all instances of auto-cleanup variables declared after they need to
be in scope.
Change-Id: I3a005df03ede971e08d4f62d7c7711a1913fda5e
This is a fix for the following found defect:
*** CID 1568540: Null pointer dereferences (REVERSE_INULL)
/daemon/sdp.c: 2065 in insert_codec_parameters()
2059 pt->payload_type,
2060 STR_FMT(&pt->format_parameters));
2061 }
2062 if (s_dst->len) {
2063 /* append to the chop->output */
2064 append_attr_to_gstring(s, s_dst->str, NULL, flags,
>>> CID 1568540: Null pointer dereferences (REVERSE_INULL)
>>> Null-checking "cm" suggests that it may be null, but it has already been dereferenced on all paths leading to the check.
2065 (cm ? cm->type_id : MT_UNKNOWN));
2066 }
2067 g_string_free(s_dst, TRUE);
2068 }
2069
2070 /* rtcp-fb */
Change-Id: I309fd6268b889ceaf32a58d2fbe17a8c891a95d6
Move processing of removal and substitution
attribute manipulations to the bottom,
after all fixed (well known to rtpengine)
attributes are skipped already.
This is done for media and session level attributes:
- `process_media_attributes()`
- `process_session_attributes()`
This is to add an efficiency to the current processing,
and not do double work.
Change-Id: Idd933f9d85aef5e9a5d597f8825d21e45f43ef37
Add media attributes substitution support to
the following functions:
- `append_attr_to_gstring()`
- `append_attr_int_to_gstring()`
First functions check, if the attribute has to be
removed (by the manipulations profile), if not
then it checks out whether we have to substitute it.
If neither of manipulations have to be applied,
then the given attribute gets attached to the chopper.
This gives support of substitution for
such media level attributes like:
- `mid`
- `label`
- `ptime`
- `ice-ufrag`
- `ice-pwd`
- `ice-options`
etc.
Change-Id: I35a1ad71f1031d986a79446522da2a557c09ddcc
Because the attribute parts variables are declared in
one signle row, these (popping up) commentaries in other
code parts, show only the first code comment for all of the
variables, which makes the code reading confusing.
In order to fix that, declare each one separately, that
gives own code (popping up) commentary per variable.
Change-Id: Iddb94b989844b997055be70a526cca59ab2fddf3
Ignore `a=` during sdp attribute level manipulations
during lookups with the `sdp_manipulate_remove()` and
`sdp_manipulations_subst()`. This is only in:
- `append_attr_int_to_gstring()`
- `append_attr_to_gstring()`
This is required for a proper `str` matching in ht.
Then explicitely add `a=` to the resulting `GString *s`.
Change-Id: I569a356e9a01cffb0068a87a9c6d5a568fe85ecc
In order to be able to remove or substitute `fmtp` parameters,
we have to take care of that in `insert_codec_parameters()`,
since `fmtp` are additionally being printed already after
execution of `process_media_attributes()`.
Change-Id: I78547be13939e161b193beecd8693e22c534fd18
The original sdp_manipulate_check's only purpose left is to check for an
attribute removal. Refactor accordingly.
Change-Id: I3be28e0a2c04461a60766afe7096ad3fb8bbe998
In order to perform a substitution we must do a lookup to the hash table
anyway. We can eliminate an extra lookup for the same key to check
whether a substitution exists by combining the two operations into one.
Change-Id: Ife8f1fbfd77ade1986a303a3a5503f4142f7de01
Operating on an empty queue is essentially a no-op, so there's no point
in doing an extra check first to see if the queue is empty. Remove this
extra check for the CMD_ADD case.
Change-Id: I3c7524cd407fb350a46bdf8d3a91014158c6bf44
Use an indexed array to generically support all possible media types
instead of hard-coding a few possible types. This makes lookup faster
and is also future-proof.
Add helper functions to allocate and lookup the appropriate object.
Change-Id: I28406b2c5a6829330f41601fa52e738d9a8ee315
Media types must be given explicitly anyway, so we don't need to warn
when we encounter a different one, as it's entirely expected that we
won't operate on it.
Change-Id: Ic6b808422ceb5ae857a4d0a99379a1c858bb6fd8
For efficiency reasons `substitute` kind of SDP manipulations
commands have been moved to the `GHashTable` instead of the `GQueue`.
Change-Id: Iec6c44109ae912ba0de440bbed6ecaee6a238b97
1) a=ice-options can be a session-level attribute. Use the correct
lookup function to check for both media-level and session-level
attributes.
2) The RTP endpoint address must be filled in before we do the trickle
ICE check, which uses 0.0.0.0:9 as determining factor.
3) Adapt a test case.
Change-Id: Ic0caffc85791131173848d28f5a652ad9d9124db
Using a pointer array instead of a linked lists allows us to directly
reference a media section by index number, without having to spool into
the linked list.
No functional changes.
Change-Id: I8b0e93f0c2e9addbcb4c938894118ed4a6aec768
Deprecate the `append_attr_to_gstring()` and combine the functionality
of it with the `append_attr_char_to_gstring()` to not have multiple
functions doing same thing.
Change-Id: Id955f79a4f3b0864427216af20b11fd4baeb2b93
Improve an efficiency of the code in terms of not checking anything
inside the function, if the `sdp_manipulation` flags are absent.
Change-Id: I2a5d8cf675a73ec7a2b4af94d5c7fe2f18fc1772
Do not use the `g_queue_is_empty()` to check the emptiness
of the `add_commands_*` GQueue. It's enough to check the pointer
and the first `->head` value.
Change-Id: Ie01f45d5f8bbaa5af3a09594cce145a0e83943c2
Do not proceed to the `g_hash_table_lookup()` if the `attr_name`
is empty.
Additonally: improve slightly the same check for the CMD_SUBST.
Change-Id: I39e34c34b458150ebae38dff5e6a46f6e8f17c66
It substitutes a specified `a=` line taken from the concerned
media attributes list. If such line has been not found,
the attributes list remains untouched.
It subsitutes one attribute at a time, so one attribute into
another attribute.
Change-Id: Ie0a48ba46a1b196fbe33b09dedc40e4498640e34
In order to improve the efficieny of the code (make lookups
faster) use GQueues for CMD_ADD manipulations and
GHashTable for CMD_REM manipulations.
This gives the following benefits:
- faster lookup (check), if any SDP command is to be applied
(no need to iterate through all values of commands, as it used to be)
- keep a sequence for CMD_ADD values given by option flag(s)
In order to keep the code more lightweight and clear,
add a separate struct ptr to queues and hash tables into
the call_interfaces header.
Change-Id: I7e45aca4062750c7b8959473edb410ed76cc04e7
Richard Fuchs
Donat Zenichev
Michael Prokop