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TrackMediaInfoMap: Use rtc::ArrayView in Initialize.

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Drive-by improvement as suggested in
https://webrtc-review.googlesource.com/c/src/+/269404.

Bug: webrtc:14289
Change-Id: Ib6579916cb4ab1076c1522275b318859400b731e
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/269202
Reviewed-by: Niels Moller <nisse@webrtc.org>
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Commit-Queue: Henrik Boström <hbos@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#37625}
This commit is contained in:
Henrik Boström 2022-07-27 11:32:14 +02:00 committed by WebRTC LUCI CQ
parent fc67b455e6
commit 808a8fc29e
3 changed files with 15 additions and 8 deletions
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1
pc/BUILD.gn
View File

@ -1340,6 +1340,7 @@ rtc_source_set("track_media_info_map") {
deps = [
":rtp_receiver",
":rtp_sender",
"../api:array_view",
"../api:media_stream_interface",
"../api:rtp_parameters",
"../api:scoped_refptr",

8
pc/track_media_info_map.cc
View File

@ -38,8 +38,8 @@ const V* FindAddressOrNull(const std::map<K, V>& map, const K& key) {
}
void GetAudioAndVideoTrackBySsrc(
const std::vector<rtc::scoped_refptr<RtpSenderInternal>>& rtp_senders,
const std::vector<rtc::scoped_refptr<RtpReceiverInternal>>& rtp_receivers,
rtc::ArrayView<rtc::scoped_refptr<RtpSenderInternal>> rtp_senders,
rtc::ArrayView<rtc::scoped_refptr<RtpReceiverInternal>> rtp_receivers,
std::map<uint32_t, AudioTrackInterface*>* local_audio_track_by_ssrc,
std::map<uint32_t, VideoTrackInterface*>* local_video_track_by_ssrc,
std::map<uint32_t, AudioTrackInterface*>* remote_audio_track_by_ssrc,
@ -109,8 +109,8 @@ TrackMediaInfoMap::TrackMediaInfoMap() = default;
void TrackMediaInfoMap::Initialize(
absl::optional<cricket::VoiceMediaInfo> voice_media_info,
absl::optional<cricket::VideoMediaInfo> video_media_info,
const std::vector<rtc::scoped_refptr<RtpSenderInternal>>& rtp_senders,
const std::vector<rtc::scoped_refptr<RtpReceiverInternal>>& rtp_receivers) {
rtc::ArrayView<rtc::scoped_refptr<RtpSenderInternal>> rtp_senders,
rtc::ArrayView<rtc::scoped_refptr<RtpReceiverInternal>> rtp_receivers) {
rtc::Thread::ScopedDisallowBlockingCalls no_blocking_calls;
RTC_DCHECK(!is_initialized_);
is_initialized_ = true;

14
pc/track_media_info_map.h
View File

@ -19,6 +19,7 @@
#include <vector>
#include "absl/types/optional.h"
#include "api/array_view.h"
#include "api/media_stream_interface.h"
#include "api/scoped_refptr.h"
#include "media/base/media_channel.h"
@ -50,12 +51,14 @@ class TrackMediaInfoMap {
public:
TrackMediaInfoMap();
// Takes ownership of the "infos". Does not affect the lifetime of the senders
// or receivers, but TrackMediaInfoMap will keep their associated tracks alive
// through reference counting until the map is destroyed.
void Initialize(
absl::optional<cricket::VoiceMediaInfo> voice_media_info,
absl::optional<cricket::VideoMediaInfo> video_media_info,
const std::vector<rtc::scoped_refptr<RtpSenderInternal>>& rtp_senders,
const std::vector<rtc::scoped_refptr<RtpReceiverInternal>>&
rtp_receivers);
rtc::ArrayView<rtc::scoped_refptr<RtpSenderInternal>> rtp_senders,
rtc::ArrayView<rtc::scoped_refptr<RtpReceiverInternal>> rtp_receivers);
const absl::optional<cricket::VoiceMediaInfo>& voice_media_info() const {
RTC_DCHECK(is_initialized_);
@ -104,6 +107,8 @@ class TrackMediaInfoMap {
absl::optional<cricket::VideoMediaInfo> video_media_info_;
// These maps map tracks (identified by a pointer) to their corresponding info
// object of the correct kind. One track can map to multiple info objects.
// Known tracks are guaranteed to be alive because they are also stored as
// entries in the reverse maps below.
std::map<const AudioTrackInterface*, std::vector<cricket::VoiceSenderInfo*>>
voice_infos_by_local_track_;
std::map<const AudioTrackInterface*, cricket::VoiceReceiverInfo*>
@ -114,7 +119,8 @@ class TrackMediaInfoMap {
video_info_by_remote_track_;
// These maps map info objects to their corresponding tracks. They are always
// the inverse of the maps above. One info object always maps to only one
// track.
// track. The use of scoped_refptr<> here ensures the tracks outlive
// TrackMediaInfoMap.
std::map<const cricket::VoiceSenderInfo*,
rtc::scoped_refptr<AudioTrackInterface>>
audio_track_by_sender_info_;