Flussonic Media Server 22.02

Flussonic Media Server 22.02 has been released.

Flussonic can now retransmit packets to a browser after getting the event that a packet was not received. This works for UDP packets during WebRTC playback.

Support of the AV1 codec was added.

Check the full list of improvements and fixes below and get your servers upgraded as soon as possible.

What's New

• #19932 (new) (Flussonic) Added a new playback URL format (srt://ip:port) for SRT streams that is supported by most players.
• #21022 (new) (Flussonic UI) Added "Error" filter on the "Media" page to filter streams with errors.
• #21282 (new) (Player) Player can now pass the information about available tracks and the currently used track to the browser.
• #21443 (new) (Flussonic) Flussonic can now retransmit packets to a browser after getting the event that a packet was not received. This works for UDP packets during WebRTC playback.
• #21505 (new) (Flussonic) Playing HLS stream with multiple audio tracks now works correctly for streams with DVR.
• #21521 (new) (Player) It is now possible to display thumbnails for DASH playback in the rewind mode.
• #21580 (new) (Flussonic API) Added status field for a stream statistics in the API schema.
• #21646 (new) (Flussonic API) Created specification for HTTP playback API. It will be published soon.
• #21664 (new) (Flussonic API) Added dvr and ssl flags for a session in the API schema.
• #21699 (new) (Flussonic API) Added initial specification for WHIP (WebRTC HTTP ingest protocol) and WHAP (WebRTC HTTP plAy protocol). It will be published soon.
• #21786 (new) (Flussonic) It is now possible to publish and play video encoded with AV1 codec via WebRTC.
• #21886 (new) (Flussonic) It is now possible to record MP4 video encoded with AV1 codec into a DVR archive and export it from the DVR archive.
• #21915 (new) (Flussonic) Video encoded with AV1 codec with audio encoded with OPUS codec can now be played via DASH protocol.
• #21980 (new) (Flussonic) Video encoded with AV1 codec with audio encoded with OPUS codec can now be played with MSE Player in browsers.
• #21982 (new) (Flussonic) Video encoded with AV1 codec with audio encoded with OPUS codec can now be played via HLS protocol.

Issues Resolved

• #16640 (fixed) (Flussonic) (NVENC transoder) Fixed memory leaks in NVENC trancoder.
• #17678 (fixed) (Flussonic Coder) Fixed incorrect transcoding of a stream with interlacing. Updated SDK.
• #17859 (fixed) (Flussonic) Fixed the issue with flussonic-epmd.service, causing Flussonic not to start after the reboot or an update.
• #19496 (fixed) (Flussonic) Fixed freezing of some MPEG-TS streams after publishing in Flussonic.
• #19528 (fixed) (Flussonic) Fixed the issue with bad restoring of SRT publication from vMix after a short connection loss.
• #19678 (fixed) (Player) Fixed incorrect scaling of a timeline with a mouse cursor when playing a DVR archive.
• #19944 (fixed) (Flussonic UI) Fixed broken IPTV plugin in Flussonic UI.
• #20612 (fixed) (Flussonic) Fixed incorrect logging when closing RTMP source for publication.
• #20749 (fixed) (Flussonic) Fixed delays when restarting a file in an on-demand stream by removing unnecessary operations between restarts.
• #21207 (fixed) (Flussonic UI) Fixed the issue when a template prefix was not set in the template configuration being added via UI.
• #21217 (fixed) (Flussonic Coder) Fixed errors when getting Flussonic Coder interfaces via API V3.
• #21301 (fixed) (Flussonic) Fixed stopping a video track after interruption of an audio track in a mixer stream.
• #21312 (fixed) (Flussonic UI) Deleted unnecessary code when accessing API and, thus, improved the Flussonic UI performance.
• #21335 (fixed) (Flussonic) Fixed the issue with unavailable stream on a restreamer after switching it from on-demand to static.
• #21423 (fixed) (Flussonic UI) Fixed absence of "SD" or "HD" icons for tracks in stream settings on the "Overview" tab.
• #21566 (fixed) (Flussonic) Fixed the issue when receiving teletext with Decode Time Stamps (DTS) was out of sync with other media.
• #21584 (fixed) (Flussonic UI) Deleted unnecessary requests on start and, thus, improved the Flussonic UI performance.
• #21593 (fixed) (Flussonic) Fixed incorrect work of the except option for streams in a cluster when using templates.
• #21594 (fixed) (Flussonic API) Fixed absence of information about cluster peers and sources in stream statistics in API V3.
• #21622 (fixed) (Player) Fixed the issue when Player did not start DVR archive playback after pausing live stream.
• #21623 (fixed) (Player) Fixed displaying incorrect state of the Pause button when playing a DVR archive.
• #21639 (fixed) (Flussonic) Fixed memory leak when playing a stream with CMAF enabled.
• #21685 (fixed) (Flussonic) Fixed incorrect resizing of thumbnails for DASH playback.
• #21723 (fixed) (Flussonic UI) Custom queries on pulse graph page was fixed.
• #21748 (fixed) (Flussonic) Fixed incorrect displaying of bitrate when capturing video from Decklink SDI cards.
• #21779 (fixed) (Flussonic UI) Deleted unused files and packages and, thus, improved the Flussonic UI performance.
• #21800 (fixed) (Flussonic API) Fixed the error when sending POST request for server configuration validation with data in application/json format.
• #21852 (fixed) (Flussonic UI) Significant improvement of main page speed loading.
• #21859 (fixed) (Flussonic UI) Fixed impossibility to download a playlist from the IPTV plugin. Now it is necessary to pass the token parameter (instead of key) to receive a playlist: http://localhost:8080/tv/playlists/client_name?token=XXXXXXX.
• #21872 (fixed) (Flussonic UI) Fixed absence of track resolution in the "Output media info" section on the "Overview" tab in the stream settings.
• #21885 (fixed) (Flussonic API) Fixed duplicated fields in track_info part of stream parameters in API schema.
• #21917 (fixed) (Flussonic UI) Fixed broken video capturing from DVB cards with record_input enabled.
• #21927 (fixed) (Flussonic) Fixed issue with cluster ingest when one server in a cluster shuts down, and its streams are not redirected to another active server in a cluster.
• #21956 (fixed) (Flussonic) Fixed returning empty playlist during playback with IPTV plugin.
• #21959 (fixed) (Flussonic) Trimming after DTS rollover in UDP push was fixed.
• #21981 (fixed) (Flussonic API) Fixed returning incorrect status of a stream with missing source in response to the API request. Now 'error' status is returned instead of 'waiting'.
• #22000 (fixed) (Flussonic Coder) Fixed absence of the "Chassis" tab in Flussonic Coder UI.
• #22010 (fixed) (Flussonic UI) Fixed setting segment_duration=0 instead of deleting this parameter after deleting in Flussonic UI.
• #22021 (fixed) (Flussonic) Fixed the error when accessing API with a disabled stream. It caused incorrect displaying streams in Flussonic UI and an error when getting the list of streams via API.
• #22037 (fixed) (Flussonic) (NVENC transoder) Fixed transcoder crash when switching to a fallback file in devices=auto mode.

Documentation updates

• #21363 (doc) To create a separate audio playlist for HLS playback see Separate audio playlists.
• #21444 (doc) (Flussonic) Described video track paramenters (width, height, pixel_width, pixel_height and some others) for streams in API schema.
• #21529 (doc) (Flussonic) Updated description of API methods for authorization bakends.
• #21531 (doc) (Flussonic) Updated description for the allow_default option for an authorization backend.
• #21651 (doc) (Flussonic) Improved descriptions and added examples for event sinks and events in the API schema.