Commit graph

117 commits

Author SHA1 Message Date
Harald Alvestrand
6aab4ccf42 Change cricket::Codec default id from 0 to -1
This allows detecting if it has been set reliably.
0 is a valid payload type.

Bug: webrtc:360058654
Change-Id: Ic3646abe20d0247592145ad27549fa46ddb7ec90
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/362261
Reviewed-by: Henrik Boström <hbos@webrtc.org>
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#43016}
2024-09-12 21:26:48 +00:00
Florent Castelli
8037fc6ffa Migrate absl::optional to std::optional
Bug: webrtc:342905193
No-Try: True
Change-Id: Icc968be43b8830038ea9a1f5f604307220457807
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/361021
Auto-Submit: Florent Castelli <orphis@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Florent Castelli <orphis@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42911}
2024-09-02 12:16:47 +00:00
Harald Alvestrand
c6c6971d97 Break out parsing of FMTP lines so that others can use it
Intended use is to convert between different representations of "codec".

Bug: webrtc:42226302
Change-Id: If6d985ad17c2ff6018c77c7858e602b9eefa9297
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/350562
Reviewed-by: Florent Castelli <orphis@webrtc.org>
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42319}
2024-05-16 10:22:23 +00:00
Harald Alvestrand
d78e30e00b Deprecate cricket::VideoCodec and cricket::AudioCodec
These are aliases for cricket::Codec.
Also remove internal usage

Bug: b/42225532
Change-Id: I220b95260dc942368cb6280432a058159eec8700
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/349321
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Florent Castelli <orphis@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42194}
2024-04-29 16:24:51 +00:00
Tomas Gunnarsson
0242939296 Reland "Deprecate old constructors and set_type() in Candidate and Port"
This reverts commit ed8390d21a.

Reason for revert: Fix has landed in chrome, ready to reland.

Original change's description:
> Revert "Deprecate old constructors and set_type() in Candidate and Port"
>
> This reverts commit aaa6851d53.
>
> Reason for revert: breaks chromium webrtc import
>
> Original change's description:
> > Deprecate old constructors and set_type() in Candidate and Port
> >
> > * Deprecates constructors that use string based `type`
> > * Deprecates string based type functions in favor of enum based.
> > * Restrict possible values of Candidate::type. Ensure a valid value
> >   is assigned at construction.
> > * Make Port constructors protected to limit their use to subclasses.
> >   - The reason for this is to make sure that use of SharedSocket()
> >     is controlled (it adds a bit of complexity).
> > * Simplify construction of Port (remove Construct() etc)
> >
> > Bug: webrtc:15846
> > Change-Id: If24ed674e175642efa49da37fd2bc847dd14f613
> > Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/339860
> > Reviewed-by: Harald Alvestrand <hta@webrtc.org>
> > Commit-Queue: Tomas Gunnarsson <tommi@webrtc.org>
> > Cr-Commit-Position: refs/heads/main@{#41865}
>
> Bug: webrtc:15846
> Change-Id: Ic8b7cba97f8fb207ef51a88900e704658ade28b7
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/342140
> Auto-Submit: Ilya Nikolaevskiy <ilnik@webrtc.org>
> Owners-Override: Ilya Nikolaevskiy <ilnik@webrtc.org>
> Commit-Queue: Ilya Nikolaevskiy <ilnik@webrtc.org>
> Bot-Commit: rubber-stamper@appspot.gserviceaccount.com <rubber-stamper@appspot.gserviceaccount.com>
> Cr-Commit-Position: refs/heads/main@{#41867}

Bug: webrtc:15846
Change-Id: I3d52643bbb537d1c072643528828d26eb18fea94
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/342200
Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
Commit-Queue: Tomas Gunnarsson <tommi@webrtc.org>
Bot-Commit: rubber-stamper@appspot.gserviceaccount.com <rubber-stamper@appspot.gserviceaccount.com>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#41875}
2024-03-08 20:39:59 +00:00
Ilya Nikolaevskiy
ed8390d21a Revert "Deprecate old constructors and set_type() in Candidate and Port"
This reverts commit aaa6851d53.

Reason for revert: breaks chromium webrtc import

Original change's description:
> Deprecate old constructors and set_type() in Candidate and Port
>
> * Deprecates constructors that use string based `type`
> * Deprecates string based type functions in favor of enum based.
> * Restrict possible values of Candidate::type. Ensure a valid value
>   is assigned at construction.
> * Make Port constructors protected to limit their use to subclasses.
>   - The reason for this is to make sure that use of SharedSocket()
>     is controlled (it adds a bit of complexity).
> * Simplify construction of Port (remove Construct() etc)
>
> Bug: webrtc:15846
> Change-Id: If24ed674e175642efa49da37fd2bc847dd14f613
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/339860
> Reviewed-by: Harald Alvestrand <hta@webrtc.org>
> Commit-Queue: Tomas Gunnarsson <tommi@webrtc.org>
> Cr-Commit-Position: refs/heads/main@{#41865}

Bug: webrtc:15846
Change-Id: Ic8b7cba97f8fb207ef51a88900e704658ade28b7
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/342140
Auto-Submit: Ilya Nikolaevskiy <ilnik@webrtc.org>
Owners-Override: Ilya Nikolaevskiy <ilnik@webrtc.org>
Commit-Queue: Ilya Nikolaevskiy <ilnik@webrtc.org>
Bot-Commit: rubber-stamper@appspot.gserviceaccount.com <rubber-stamper@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#41867}
2024-03-07 09:43:38 +00:00
Tommi
aaa6851d53 Deprecate old constructors and set_type() in Candidate and Port
* Deprecates constructors that use string based `type`
* Deprecates string based type functions in favor of enum based.
* Restrict possible values of Candidate::type. Ensure a valid value
  is assigned at construction.
* Make Port constructors protected to limit their use to subclasses.
  - The reason for this is to make sure that use of SharedSocket()
    is controlled (it adds a bit of complexity).
* Simplify construction of Port (remove Construct() etc)

Bug: webrtc:15846
Change-Id: If24ed674e175642efa49da37fd2bc847dd14f613
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/339860
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Tomas Gunnarsson <tommi@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#41865}
2024-03-06 18:36:14 +00:00
Harald Alvestrand
6a8236617d Reject SDP with duplicate msid lines
This is an obscure error that was found by a fuzzer.

Bug: webrtc:15845
Change-Id: I3509fa264a3af6f0f5e8e6b75a8b7dcd8fb0da1a
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/339681
Reviewed-by: Florent Castelli <orphis@webrtc.org>
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#41743}
2024-02-15 11:06:41 +00:00
Philipp Hancke
7a6a8ebf23 sdp: backfill default codec parameters for H265
with default values for level-id and tx-mode defined in
  https://datatracker.ietf.org/doc/html/draft-aboba-avtcore-hevc-webrtc

BUG=webrtc:15703

Change-Id: I07d77d69c6376313e693e8ddda1cc0135033549a
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/338620
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Sergey Silkin <ssilkin@webrtc.org>
Commit-Queue: Philipp Hancke <phancke@microsoft.com>
Cr-Commit-Position: refs/heads/main@{#41732}
2024-02-14 11:20:53 +00:00
Harald Alvestrand
974044efca Remove code for supporting SDES
Rework transport_description_factory to only have non-DTLS mode for
testing, and rewrite tests accordingly.

Bug: webrtc:11066, chromium:804275
Change-Id: Ie7d477c4331c975e4e0a3034fbbb749ed9009446
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/336880
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Henrik Boström <hbos@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#41697}
2024-02-08 14:34:04 +00:00
Philipp Hancke
c1cc6a36b2 sdp: backfill default codec parameters for AV1
as required by
  https://aomediacodec.github.io/av1-rtp-spec/#72-sdp-parameters
Also unify usage of profile fmtp parameter. Most notably this causes
SDP answers to include the default values.

These default values correspond to libaom's default values for AV1E_SET_TARGET_SEQ_LEVEL_IDX, AV1E_SET_TIER_MASK as used in
https://source.chromium.org/chromium/chromium/src/+/main:third_party/libaom/source/libaom/aom/aomcx.h
and g_profile in aom_codec_enc_cfg
https://source.chromium.org/chromium/chromium/src/+/main:third_party/libaom/source/libaom/aom/aom_encoder.h;l=415;drc=b58207f5aecc39db7d3da766e7d171e5d2c3598e

Note: AV1 is inconsistently cased in variable/struct/method/class names. The canonical casing should probably be "Av1" since it is an acronym standing for "AOMedia Video 1".

BUG=webrtc:15703

Change-Id: I11864b7666fea906cd1a0759c7ad45997beab90e
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/331360
Reviewed-by: Sergey Silkin <ssilkin@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Philipp Hancke <phancke@microsoft.com>
Cr-Commit-Position: refs/heads/main@{#41654}
2024-02-01 13:11:09 +00:00
Harald Alvestrand
27a452da21 Rewrite webrtc_sdp unittest to use DTLS not SDES
This is in preparation for removing SDES support.

Bug: webrtc:11066
Change-Id: Ia89f8003cf1869c94baf429e9b2905235bd09a22
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/337180
Reviewed-by: Henrik Boström <hbos@webrtc.org>
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#41649}
2024-01-31 19:09:54 +00:00
Philipp Hancke
80a8683e30 sdp: tweak msid signaling further
* changing the defaults to unified-plan,
* expect unified-plan by default
* only include the msid-semantic line in answers when the
offer contained a sign of msid being used

BUG=webrtc:10421

Change-Id: I79364c2dd801d37adea119375e4dc01edf55b3be
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/331800
Reviewed-by: Henrik Boström <hbos@webrtc.org>
Commit-Queue: Philipp Hancke <phancke@microsoft.com>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#41480}
2024-01-08 14:03:19 +00:00
Philipp Hancke
de17252e8e Reland "Unify access to SDP codec parameters"
This is a reland of commit 63d03f586b

Original change's description:
> Unify access to SDP codec parameters
>
> which come from the a=fmtp:<pt> lines in the SDP and were used as either
>   std::map<std::string, std:string>
> with three aliases,
>   cricket::CodecParameterMap
>   SdpAudioFormat::Parameters
>   SdpVideoFormat::Parameters
>
> Use webrtc::CodecParameterMap in all places.
>
> BUG=None
>
> Change-Id: If47692bde7347834c349c6539b43309d8770e67b
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/330420
> Reviewed-by: Florent Castelli <orphis@webrtc.org>
> Reviewed-by: Harald Alvestrand <hta@webrtc.org>
> Commit-Queue: Philipp Hancke <phancke@microsoft.com>
> Cr-Commit-Position: refs/heads/main@{#41375}

Bug: None
Change-Id: I5f8f45688df232eb37b12fa3e56a893a1c754e17
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/331402
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Florent Castelli <orphis@webrtc.org>
Commit-Queue: Philipp Hancke <phancke@microsoft.com>
Cr-Commit-Position: refs/heads/main@{#41467}
2024-01-03 12:03:11 +00:00
Philipp Hancke
6f0f158af0 sdp: make msid support parsing more robust
by also taking into account any a=msid: line in addition to
msid-semantic. Also document issues with msid-semantic generation and unify support determination by removing the msid_supported flag.

BUG=webrtc:10421

Change-Id: Icea554ebd1998f2b526846457029eff6854a772a
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/329760
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Philipp Hancke <phancke@microsoft.com>
Reviewed-by: Henrik Boström <hbos@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#41386}
2023-12-14 14:50:31 +00:00
Mirko Bonadei
6c9c958c69 Revert "Unify access to SDP codec parameters"
This reverts commit 63d03f586b.

Reason for revert: Breaks downstream project (not backwards compatible API change)

Original change's description:
> Unify access to SDP codec parameters
>
> which come from the a=fmtp:<pt> lines in the SDP and were used as either
>   std::map<std::string, std:string>
> with three aliases,
>   cricket::CodecParameterMap
>   SdpAudioFormat::Parameters
>   SdpVideoFormat::Parameters
>
> Use webrtc::CodecParameterMap in all places.
>
> BUG=None
>
> Change-Id: If47692bde7347834c349c6539b43309d8770e67b
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/330420
> Reviewed-by: Florent Castelli <orphis@webrtc.org>
> Reviewed-by: Harald Alvestrand <hta@webrtc.org>
> Commit-Queue: Philipp Hancke <phancke@microsoft.com>
> Cr-Commit-Position: refs/heads/main@{#41375}

Bug: None
Change-Id: I841735d98533d3b66850b9cfcf7ee0a99ddde078
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/331400
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Auto-Submit: Mirko Bonadei <mbonadei@webrtc.org>
Owners-Override: Mirko Bonadei <mbonadei@webrtc.org>
Bot-Commit: rubber-stamper@appspot.gserviceaccount.com <rubber-stamper@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#41377}
2023-12-13 16:28:44 +00:00
Philipp Hancke
63d03f586b Unify access to SDP codec parameters
which come from the a=fmtp:<pt> lines in the SDP and were used as either
  std::map<std::string, std:string>
with three aliases,
  cricket::CodecParameterMap
  SdpAudioFormat::Parameters
  SdpVideoFormat::Parameters

Use webrtc::CodecParameterMap in all places.

BUG=None

Change-Id: If47692bde7347834c349c6539b43309d8770e67b
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/330420
Reviewed-by: Florent Castelli <orphis@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Philipp Hancke <phancke@microsoft.com>
Cr-Commit-Position: refs/heads/main@{#41375}
2023-12-13 14:22:15 +00:00
Philipp Hancke
cdd92da549 sdp: backfill default codec parameters for H264 and VP9
as preparation for H265 work.

BUG=webrtc:15703

Change-Id: Ib6e0afa5ccbb8172a70d4e4eb876639559070fd6
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/329981
Commit-Queue: Philipp Hancke <phancke@microsoft.com>
Reviewed-by: Henrik Boström <hbos@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#41350}
2023-12-11 10:48:11 +00:00
Philipp Hancke
d0f0f38f72 Remove most usage of MediaContentDescription::as_audio()/as_video()
and unify algorithms a bit more.

BUG=webrtc:15214

Change-Id: Ie9903f3e56d25b1dc026367e8ae6817275faa07b
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/328442
Reviewed-by: Florent Castelli <orphis@webrtc.org>
Commit-Queue: Philipp Hancke <phancke@microsoft.com>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#41244}
2023-11-27 09:35:39 +00:00
Philipp Hancke
581dc09008 Add more tests for SDP parsing
showing that putting attribute lines before time information in the
session part is rejected and that unknown attribute lines do not
cause parsing errors

BUG=webrtc:15597

Change-Id: I291ee3d7d6c25ca63c86c1b4a92feb9083be408f
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/324621
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Henrik Boström <hbos@webrtc.org>
Commit-Queue: Philipp Hancke <phancke@microsoft.com>
Cr-Commit-Position: refs/heads/main@{#40999}
2023-10-24 08:20:48 +00:00
Philipp Hancke
b527699a53 Reduce usage of audio/video codec specifics
BUG=webrtc:15214

Change-Id: I8e68ac149af53529321ab44776c62afe4cc2f61e
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/324020
Reviewed-by: Florent Castelli <orphis@webrtc.org>
Commit-Queue: Philipp Hancke <phancke@microsoft.com>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#40960}
2023-10-18 11:34:45 +00:00
Philipp Hancke
6a38a3eb38 sdp: reject duplicate ssrcs in ssrc-groups
while not really covered by
  https://www.rfc-editor.org/rfc/rfc5576.html#section-4.2
and using the same SSRC for RTX and primary payload may work
since payload type demuxing *could* be used is not a good idea.
This also applies to flexfec's FEC-FR.

For the nonstandard SIM ssrc-group duplicates make no sense.
This rejects duplicates for unknown ssrc-groups as well.

BUG=chromium:1454860

Change-Id: I3e86101dbd5d6c4099f2fdb7b4a52d5cd0809c5f
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/308820
Reviewed-by: Taylor Brandstetter <deadbeef@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Philipp Hancke <phancke@microsoft.com>
Cr-Commit-Position: refs/heads/main@{#40292}
2023-06-15 14:24:54 +00:00
Florent Castelli
8c4b9ea535 Remove references to AudioCodec and VideoCodec constructors
The preferred method to create codecs is to use the function
cricket::CreateAudioCodec or cricketCreateVideoCodec.
Empty codec objects are deprecated and should be replaced
with alternatives such as methods returning an
absl::optional object instead.

Bug: webrtc:15214
Change-Id: I7fe40f64673cd407830dbbb0e541b85a3aee93aa
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/307521
Commit-Queue: Florent Castelli <orphis@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#40226}
2023-06-05 23:23:40 +00:00
Philipp Hancke
7f4270d160 Remove JsepSessionDescription::kDefaultVideoCodecName
which is only used in tests.

BUG=None

Change-Id: If215ad84e6756af2ee90777a27376400f8f4d8e0
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/294721
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Florent Castelli <orphis@webrtc.org>
Commit-Queue: Philipp Hancke <phancke@microsoft.com>
Cr-Commit-Position: refs/heads/main@{#39450}
2023-03-02 12:28:29 +00:00
Philipp Hancke
5561599656 sdp: add test coverage for handling of session-level extmap attributes
verifying these are transferred to the individual m-lines.
Also verify that mixed usage both at session level as well as
media level is not allowed as described in
  https://www.rfc-editor.org/rfc/rfc5285#section-6

BUG=None

Change-Id: Iade387817c9f31362d0a26c5f13a3012c72b51b0
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/294360
Reviewed-by: Florent Castelli <orphis@webrtc.org>
Commit-Queue: Philipp Hancke <phancke@microsoft.com>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#39363}
2023-02-22 06:28:51 +00:00
Mikhail Pavlov
55c5173220 Revert "sdp: add rtcp-fb:* lines for common feedback"
This reverts commit 815522782a.

Reason for revert: Breaks a downstream project.

The internal investigation is still in-progress.

Original change's description:
> sdp: add rtcp-fb:* lines for common feedback
>
> which potentially allows switching to that pattern in the future.
> Video FEC mechanisms (ulpfec, flexfec-03, RED) that currently
> do not have any feedback parameters but will still be considered "common" and feedback may be sent for them.
>
> For audio this causes rtcp-feedback to be sent for G711 and G722 if negotiated.
>
> BUG=webrtc:14802
>
> Change-Id: I54852d39e176f918d4b36462526ceb40617b8fbe
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/290702
> Commit-Queue: Philipp Hancke <phancke@microsoft.com>
> Reviewed-by: Per Kjellander <perkj@webrtc.org>
> Cr-Commit-Position: refs/heads/main@{#39224}

Bug: webrtc:14802
Change-Id: I4dc3c0c53ad1bc06050c0d73b088303312ac58b2
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/293020
Owners-Override: Jeremy Leconte <jleconte@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Jeremy Leconte <jleconte@webrtc.org>
Commit-Queue: Jeremy Leconte <jleconte@webrtc.org>
Bot-Commit: rubber-stamper@appspot.gserviceaccount.com <rubber-stamper@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#39296}
2023-02-10 19:42:14 +00:00
Dor Hen
d1831cb4f8 Treat non DTLS/SCTP Protocol Based Data Channels as Unsupported Media
In current state, the SDP parser in webrtc is not backward compatible with clients that might still be using RTP data channels.
Obviously, this isn't there is no such usecase in webrtc since the code is deleted, but in Meta we still use it and would like
to be able to negotiate between clients that offer RTP data channels.
Instead of erroring the parsing procedure, we can parse it as unsupported media in the client that no longer supports RTP data channels.

Replaced the existing test that expects parsing failures with a test that validates that the content was parsed as unsupported media.

Bug: webrtc:14872
Change-Id: I4c105cf55e33b8c19b2849e16148b8175053c40c
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/291190
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#39252}
2023-02-03 06:56:37 +00:00
Philipp Hancke
815522782a sdp: add rtcp-fb:* lines for common feedback
which potentially allows switching to that pattern in the future.
Video FEC mechanisms (ulpfec, flexfec-03, RED) that currently
do not have any feedback parameters but will still be considered "common" and feedback may be sent for them.

For audio this causes rtcp-feedback to be sent for G711 and G722 if negotiated.

BUG=webrtc:14802

Change-Id: I54852d39e176f918d4b36462526ceb40617b8fbe
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/290702
Commit-Queue: Philipp Hancke <phancke@microsoft.com>
Reviewed-by: Per Kjellander <perkj@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#39224}
2023-01-30 10:20:50 +00:00
Philipp Hancke
b493db9b4d sdp: add tests for ParseMsidAttribute
increasing the line coverage to 100%.
Note that code coverage is still a very basic metric and
the tests still do not enforce the length of the attributes
nor their token-char-ness defined in
  https://www.rfc-editor.org/rfc/rfc8830.html#section-2

BUG=webrtc:14745

Change-Id: If5de5e1f8c32f7dae029916c6cd0a4f2b094f672
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/286900
Commit-Queue: Philipp Hancke <phancke@microsoft.com>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Florent Castelli <orphis@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#38864}
2022-12-09 16:05:22 +00:00
Philipp Hancke
3c529893e0 sdp: ignore duplicate stream ids in msid parsing
https://www.rfc-editor.org/rfc/rfc8830.html#section-3.2.2
says
  Check if a MediaStream with the same WebIDL "id"
  attribute already exists. If not, create it.

Ignoring duplicates here satisfies this and brings the behavior
closer to Firefox:
  https://github.com/w3c/webrtc-pc/issues/2803

Also make tests use a std::string for the sdp input string.

BUG=webrtc:14745

Change-Id: Iccaabc08d865b779416f6ba4d2dfd5cff04133f0
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/286422
Commit-Queue: Philipp Hancke <phancke@microsoft.com>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Florent Castelli <orphis@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#38840}
2022-12-07 18:03:59 +00:00
Philipp Hancke
e093c481bf sdp: parse a=msid:<stream_id> w/o msid-appdata
parse
  a=msid:<stream_id>
since JSEP stipulates sending this syntax as track identifers
have become meaningless. The track id will be set to a random string.

  a=msid:<stream_id> <track_id>
remains supported for backward compability.

BUG=webrtc:14729

Change-Id: I86c073eb97cd613324271125de18a773235fc79d
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/285783
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Florent Castelli <orphis@webrtc.org>
Commit-Queue: Philipp Hancke <phancke@microsoft.com>
Cr-Commit-Position: refs/heads/main@{#38814}
2022-12-05 16:44:54 +00:00
Philipp Hancke
62c20f305e sdp: temporarily relax clockrate requirements for statically assigned payload types
to allow for downstream users to upgrade.

BUG=chromium:1338902

Change-Id: If6b56ab63f7859c13e9ebc70326e1088e5dfff1a
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/268141
Commit-Queue: Philipp Hancke <philipp.hancke@googlemail.com>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#37475}
2022-07-07 09:49:54 +00:00
Andrey Logvin
1d848e1c2e Reland "pc: make codec comparison for static codecs case-insensitive"
This reverts commit e130f29aaa.

Reason for revert: Reland as the downstream project error turned out to be unrelated to the CL

Original change's description:
> Revert "pc: make codec comparison for static codecs case-insensitive"
>
> This reverts commit dcc3d046e2.
>
> Reason for revert: Speculative revert. Presumably breaks downstream project
>
> Original change's description:
> > pc: make codec comparison for static codecs case-insensitive
> >
> > BUG=webrtc:14211,webrtc:14140
> >
> > Change-Id: Ib51de4c8961a4cf7c71aea27a55c115613296aae
> > Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/266371
> > Commit-Queue: Philipp Hancke <philipp.hancke@googlemail.com>
> > Reviewed-by: Harald Alvestrand <hta@webrtc.org>
> > Cr-Commit-Position: refs/heads/main@{#37295}
>
> Bug: webrtc:14211,webrtc:14140
> Change-Id: Iead89fc597a634fe24a3d0e0f65f60215b62262d
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/266483
> Owners-Override: Andrey Logvin <landrey@webrtc.org>
> Bot-Commit: rubber-stamper@appspot.gserviceaccount.com <rubber-stamper@appspot.gserviceaccount.com>
> Auto-Submit: Andrey Logvin <landrey@webrtc.org>
> Commit-Queue: Andrey Logvin <landrey@webrtc.org>
> Cr-Commit-Position: refs/heads/main@{#37300}

Bug: webrtc:14211,webrtc:14140
Change-Id: I74d4c1099182612d26b34ca983054688c7e67c42
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/266484
Auto-Submit: Andrey Logvin <landrey@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Bot-Commit: rubber-stamper@appspot.gserviceaccount.com <rubber-stamper@appspot.gserviceaccount.com>
Owners-Override: Andrey Logvin <landrey@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#37304}
2022-06-22 11:56:51 +00:00
Andrey Logvin
e130f29aaa Revert "pc: make codec comparison for static codecs case-insensitive"
This reverts commit dcc3d046e2.

Reason for revert: Speculative revert. Presumably breaks downstream project

Original change's description:
> pc: make codec comparison for static codecs case-insensitive
>
> BUG=webrtc:14211,webrtc:14140
>
> Change-Id: Ib51de4c8961a4cf7c71aea27a55c115613296aae
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/266371
> Commit-Queue: Philipp Hancke <philipp.hancke@googlemail.com>
> Reviewed-by: Harald Alvestrand <hta@webrtc.org>
> Cr-Commit-Position: refs/heads/main@{#37295}

Bug: webrtc:14211,webrtc:14140
Change-Id: Iead89fc597a634fe24a3d0e0f65f60215b62262d
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/266483
Owners-Override: Andrey Logvin <landrey@webrtc.org>
Bot-Commit: rubber-stamper@appspot.gserviceaccount.com <rubber-stamper@appspot.gserviceaccount.com>
Auto-Submit: Andrey Logvin <landrey@webrtc.org>
Commit-Queue: Andrey Logvin <landrey@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#37300}
2022-06-22 08:46:21 +00:00
Philipp Hancke
dcc3d046e2 pc: make codec comparison for static codecs case-insensitive
BUG=webrtc:14211,webrtc:14140

Change-Id: Ib51de4c8961a4cf7c71aea27a55c115613296aae
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/266371
Commit-Queue: Philipp Hancke <philipp.hancke@googlemail.com>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#37295}
2022-06-22 04:16:52 +00:00
Philipp Hancke
32c60b84c3 Reland "sdp: reject duplicate codecs with the same id but different name or clockrate"
This is a reland of commit ad6807805d

Original change's description:
> sdp: reject duplicate codecs with the same id but different name or clockrate
>
> since something like
>   rtpmap:96 VP8/90000
>   rtpmap:96 VP9/90000
> or
>   rtpmap:97 ISAC/32000
>   rtpmap:97 ISAC/16000
> is wrong. Note that fmtp or rtcp-fb are not taken into account.
> Also note that sending invalid static payload types now throws an error.
>
> Drive-by: replace "RtpMap" with "Rtpmap" for consistency.
>
> BUG=None
>
> Change-Id: I2574b82a6f1a0afe3edc866e514a5dbca0798e8c
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/263641
> Reviewed-by: Harald Alvestrand <hta@webrtc.org>
> Commit-Queue: Philipp Hancke <philipp.hancke@googlemail.com>
> Cr-Commit-Position: refs/heads/main@{#37028}

Bug: webrtc:14140
Change-Id: I63a37aacea6b9e0a9d7570b8422849275eb69aae
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/264544
Reviewed-by: Christoffer Jansson <jansson@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Philipp Hancke <philipp.hancke@googlemail.com>
Cr-Commit-Position: refs/heads/main@{#37066}
2022-05-31 16:09:17 +00:00
Henrik Boström
874517b5f5 Revert "sdp: reject duplicate codecs with the same id but different name or clockrate"
This reverts commit ad6807805d.

Reason for revert: Speculative revert due to consistent Mac browser
test failures preventing WebRTC from rolling int Chromium:
https://ci.chromium.org/ui/p/chromium/builders/webrtc.fyi/WebRTC%20Chromium%20FYI%20Mac%20Tester/10410/overview

"Failed to parse SessionDescription. a=rtpmap:103 ISAC/16000 Duplicate payload type with conflicting codec name, clock rate or number of channels."

Original change's description:
> sdp: reject duplicate codecs with the same id but different name or clockrate
>
> since something like
>   rtpmap:96 VP8/90000
>   rtpmap:96 VP9/90000
> or
>   rtpmap:97 ISAC/32000
>   rtpmap:97 ISAC/16000
> is wrong. Note that fmtp or rtcp-fb are not taken into account.
> Also note that sending invalid static payload types now throws an error.
>
> Drive-by: replace "RtpMap" with "Rtpmap" for consistency.
>
> BUG=None
>
> Change-Id: I2574b82a6f1a0afe3edc866e514a5dbca0798e8c
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/263641
> Reviewed-by: Harald Alvestrand <hta@webrtc.org>
> Commit-Queue: Philipp Hancke <philipp.hancke@googlemail.com>
> Cr-Commit-Position: refs/heads/main@{#37028}

Bug: None
Change-Id: Ic9c06c9309bb68bd94bfdd2e30ffd6ff96f6812b
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/264540
Bot-Commit: rubber-stamper@appspot.gserviceaccount.com <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Henrik Boström <hbos@webrtc.org>
Reviewed-by: Christoffer Jansson <jansson@webrtc.org>
Reviewed-by: Philipp Hancke <philipp.hancke@googlemail.com>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#37064}
2022-05-31 13:31:56 +00:00
Philipp Hancke
ad6807805d sdp: reject duplicate codecs with the same id but different name or clockrate
since something like
  rtpmap:96 VP8/90000
  rtpmap:96 VP9/90000
or
  rtpmap:97 ISAC/32000
  rtpmap:97 ISAC/16000
is wrong. Note that fmtp or rtcp-fb are not taken into account.
Also note that sending invalid static payload types now throws an error.

Drive-by: replace "RtpMap" with "Rtpmap" for consistency.

BUG=None

Change-Id: I2574b82a6f1a0afe3edc866e514a5dbca0798e8c
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/263641
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Philipp Hancke <philipp.hancke@googlemail.com>
Cr-Commit-Position: refs/heads/main@{#37028}
2022-05-30 08:16:25 +00:00
Harald Alvestrand
88b8dec17b Reland "remove mslabel and mslabel ssrc-specific attributes"
This reverts commit f0a34f2a30.

Reason for revert: Fixed downstream projects to not require those fields.

Original change's description:
> Revert "remove mslabel and mslabel ssrc-specific attributes"
>
> This reverts commit e3f257c4ee.
>
> Reason for revert: Breaks downstream projects
>
> Original change's description:
> > remove mslabel and mslabel ssrc-specific attributes
> >
> > Removes support for parsing and serializing
> >   a=ssrc:1 mslabel:stream
> >   a=ssrc:1 label:track
> > which have been superceeded by
> >   a=ssrc:1 msid:stream track
> > a long time ago.
> >
> > Bug: webrtc:7110
> > Change-Id: I3aca47728098b6e7e049b82ed34c59426d411c41
> > Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/168244
> > Commit-Queue: Harald Alvestrand <hta@webrtc.org>
> > Reviewed-by: Harald Alvestrand <hta@webrtc.org>
> > Reviewed-by: Kári Helgason <kthelgason@webrtc.org>
> > Cr-Commit-Position: refs/heads/master@{#30801}
>
> TBR=kthelgason@webrtc.org,hta@webrtc.org,philipp.hancke@googlemail.com
>
> Change-Id: Ibd0ad11d2dee9f54bacab3dcca61dedccfc2c120
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> Bug: webrtc:7110
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/170620
> Reviewed-by: Artem Titov <titovartem@webrtc.org>
> Commit-Queue: Artem Titov <titovartem@webrtc.org>
> Cr-Commit-Position: refs/heads/master@{#30805}

Change-Id: Iec4bd460b35ce49cdb03dd607d2c8b1dee6210ab
Bug: webrtc:7110
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/170622
Reviewed-by: Philipp Hancke <philipp.hancke@googlemail.com>
Reviewed-by: Henrik Boström <hbos@webrtc.org>
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#36640}
2022-04-25 08:50:50 +00:00
David Sanders
60c588d77e Fixed typos, candiate -> candidate
Bug: None
Change-Id: I2dee549aa79f1eb6bddd58cfc6c9f67eb6ba3663
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/256147
Reviewed-by: Tomas Gunnarsson <tommi@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#36273}
2022-03-21 06:30:32 +00:00
Harald Alvestrand
c24a2189d7 Update IWYU tool with a mapping file
Also apply IWYU to all .cc files in pc/, and correct BUILD file to match.
Note: Some files came out wrong when iwyu was applied. These are not included.

Bug: none
Change-Id: Ib5ea46b8fcc505414d0447cca7218ad3afc2e321
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/252280
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#36064}
2022-02-24 11:05:06 +00:00
Philipp Hancke
d58ac5adf8 sdp: reject large number of channels
the maximum used in practice is multiopus with
6 or 8 channels. 24 is the maximum number of channels
supported in the audio decoder.

BUG=chromium:1265806

Change-Id: Iba8e3185a1f235b846fed9c154e66fb3983664ed
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/238980
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Philipp Hancke <phancke@nvidia.com>
Cr-Commit-Position: refs/heads/main@{#35440}
2021-11-30 11:01:14 +00:00
Artem Titov
d3251968d1 Prepare to rename RTC_NOTREACHED to RTC_DCHECK_NOTREACHED
Add implementation of RTC_DCHECK_NOTREACHED equal to the RTC_NOTREACHED.
The new macros will replace the old one when old one's usage will be
removed. The idea of the renaming to provide a clear signal that this
is debug build only macros and will be stripped in the production build.

Bug: webrtc:9065
Change-Id: I4c35d8b03e74a4b3fd1ae75dba2f9c05643101db
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/237802
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Artem Titov <titovartem@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#35348}
2021-11-15 21:44:59 +00:00
Harald Alvestrand
0d018415d5 Revert "Remove code supporting the SDES crypto mode in SDP"
This reverts commit ee212a72f2.

Reason for revert: Don't remove until downstream issues resolved

Original change's description:
> Remove code supporting the SDES crypto mode in SDP
>
> Removes the ability to accept nonencrypted answers to encrypted offers.
> Fixes some logic around bundled sessions and requirement for
> transport parameters.
>
> Bug: webrtc:11066
> Change-Id: I56d8628d223614918a1e5260fdb8a117c8c02dbd
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/236344
> Commit-Queue: Harald Alvestrand <hta@webrtc.org>
> Reviewed-by: Niels Moller <nisse@webrtc.org>
> Cr-Commit-Position: refs/heads/main@{#35298}

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: webrtc:11066
Change-Id: I0c400ceffe1b08e0be7b44abbb54c8a032128f05
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/237223
Reviewed-by: Niels Moller <nisse@webrtc.org>
Reviewed-by: Henrik Boström <hbos@webrtc.org>
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#35312}
2021-11-04 14:46:27 +00:00
Harald Alvestrand
ee212a72f2 Remove code supporting the SDES crypto mode in SDP
Removes the ability to accept nonencrypted answers to encrypted offers.
Fixes some logic around bundled sessions and requirement for
transport parameters.

Bug: webrtc:11066
Change-Id: I56d8628d223614918a1e5260fdb8a117c8c02dbd
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/236344
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Niels Moller <nisse@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#35298}
2021-11-02 12:58:50 +00:00
Harald Alvestrand
efece42aa5 Allow remote SDP offers to be "active" or "passive"
Bug: webrtc:12933
Change-Id: I75f148a1700143571e0ef8bce8a99123bae9c918
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/229181
Reviewed-by: Taylor Brandstetter <deadbeef@webrtc.org>
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#34812}
2021-08-19 20:05:21 +00:00
Artem Titov
880fa8169b Reland "Use backticks not vertical bars to denote variables in comments for /pc"
Original change's description:
> Revert "Use backticks not vertical bars to denote variables in comments for /pc"
>
> This reverts commit 37ee0f5e59.
>
> Reason for revert: Revert in order to be able to revert https://webrtc-review.googlesource.com/c/src/+/225642
>
> Original change's description:
> > Use backticks not vertical bars to denote variables in comments for /pc
> >
> > Bug: webrtc:12338
> > Change-Id: I88cf10afa5fc810b95d2a585ab2e895dcc163b63
> > Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/226953
> > Reviewed-by: Harald Alvestrand <hta@webrtc.org>
> > Commit-Queue: Artem Titov <titovartem@webrtc.org>
> > Cr-Commit-Position: refs/heads/master@{#34575}
>
> TBR=hta@webrtc.org,titovartem@webrtc.org,webrtc-scoped@luci-project-accounts.iam.gserviceaccount.com
>
> Change-Id: I5eddd3a14e1f664bf831e5c294fbc4de5f6a88af
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> Bug: webrtc:12338
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/227082
> Reviewed-by: Björn Terelius <terelius@webrtc.org>
> Commit-Queue: Björn Terelius <terelius@webrtc.org>
> Cr-Commit-Position: refs/heads/master@{#34577}

Bug: webrtc:12338
Change-Id: I96bd229b73613c162d11d75fa4f5934e1b4295c7
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/227087
Commit-Queue: Artem Titov <titovartem@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#34611}
2021-07-30 22:13:59 +00:00
Björn Terelius
fd05d6f504 Revert "Use backticks not vertical bars to denote variables in comments for /pc"
This reverts commit 37ee0f5e59.

Reason for revert: Revert in order to be able to revert https://webrtc-review.googlesource.com/c/src/+/225642

Original change's description:
> Use backticks not vertical bars to denote variables in comments for /pc
>
> Bug: webrtc:12338
> Change-Id: I88cf10afa5fc810b95d2a585ab2e895dcc163b63
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/226953
> Reviewed-by: Harald Alvestrand <hta@webrtc.org>
> Commit-Queue: Artem Titov <titovartem@webrtc.org>
> Cr-Commit-Position: refs/heads/master@{#34575}

TBR=hta@webrtc.org,titovartem@webrtc.org,webrtc-scoped@luci-project-accounts.iam.gserviceaccount.com

Change-Id: I5eddd3a14e1f664bf831e5c294fbc4de5f6a88af
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: webrtc:12338
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/227082
Reviewed-by: Björn Terelius <terelius@webrtc.org>
Commit-Queue: Björn Terelius <terelius@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#34577}
2021-07-27 22:10:24 +00:00
Artem Titov
37ee0f5e59 Use backticks not vertical bars to denote variables in comments for /pc
Bug: webrtc:12338
Change-Id: I88cf10afa5fc810b95d2a585ab2e895dcc163b63
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/226953
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Artem Titov <titovartem@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#34575}
2021-07-27 20:52:02 +00:00
Henrik Boström
f8187e0a82 [Unified Plan] Support multiple BUNDLE groups.
In this CL, JsepTransportController and MediaSessionDescriptionFactory
are updated not to assume that there only exists at most a single BUNDLE
group but a list of N groups. This makes it possible to create multiple
BUNDLE groups by having multiple "a=group:BUNDLE" lines in the SDP.

This makes it possible to have some m= sections in one group and some
other m= sections in another group. For example, you could group all
audio m= sections in one group and all video m= sections in another
group. This enables "send all audio tracks on one transport and all
video tracks on another transport" in Unified Plan. This is something
that was possible in Plan B because all ssrcs in the same m= section
were implicitly bundled together forming a group of audio m= section and
video m= section (even without use of the BUNDLE tag).

PeerConnection will never create multiple BUNDLE groups by default, but
upon setting SDP with multiple BUNDLE groups the PeerConnection will
accept them if configured to accept BUNDLE. This makes it possible to
accept an SFU's BUNDLE offer without having to SDP munge the answer.

C++ unit tests are added. This fix has also been verified manually on:
https://jsfiddle.net/henbos/to89L6ce/43/

Without fix: 0+2 get bundled, 1+3 don't get bundled.
With fix: 0+2 get bundled in first group, 1+3 get bundled in second
group.

Bug: webrtc:10208
Change-Id: Iaf451fa5459c484730c8018274166ef154b19af8
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/214487
Reviewed-by: Taylor <deadbeef@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Henrik Boström <hbos@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#33838}
2021-04-27 05:53:37 +00:00