Adding a Source – Transcoded

you can create a transcoded source based on an existing source the transcoding parameters are set by selecting one of the pre configured transcoding profiles the transcoded source can then be added to a pass through channel making it available to various types of targets such as youtube live or facebook live using rtmp protocol the following procedure describes how to add a transcoded source in zen master in addition, an explanation of each of the configuration parameters is given in the table below to add a transcoded source in the main navigation, click sources click + add the create new source selection window is displayed create source options click on transcoded the create new transcoded source window opens new source transcoded in the info section, in the name field, enter a unique name to identify this source in the system in the tags field, select one or more of the predefined tags from the drop down list tags are used for access control by selecting a tag, you are relating this source to that tag tags are associated with certain roles (through the users & roles screen), and roles, in turn, are associated with users and user groups if you would like to create a new tag, see docid\ ypm9tw81ap6nq8stkv4rd in the events configuration profile field, select from the dropdown list the profile that you would like to apply to this source by default, the default profile is applied events profiles consist of a series of rules that determine precisely how various types of events are logged and what results they trigger the source's location is used to represent it in the proper position in the map display (see docid\ sfzm6jvorvuigo7x0dnue ) by default, the location is determined automatically based on the source's ip if you would like to manually set the location of the source (optional), use the following procedure click on the edit icon next to the location field a search box is shown below the location field enter identifying info for the location (e g street address, zip code, coordinates) search results are displayed below the search box as you type click on the desired location the selected location populates the location field in the input section, in the source field, select from the drop down list the source that the transcoded source is based on in the configuration section, in the ingest cluster field, select from the drop down list the ingest cluster on which the sources that you would like to group together are located in the target broadcaster/s field, specify which broadcaster/s within the cluster on which zen master can deploy the source either select a specific broadcaster (for manual clusters) or specify your preference for using primary vs backup broadcasters, options are prefer primary broadcasters, primary broadcasters only, backup broadcasters only or prefer backup broadcasters for managed clusters, it is not recommended to select a specific broadcaster, as the broadcaster’s availability may not remain stable in the transcoding profile field, select one of the pre configured transcoding profiles to apply to this source if you would like to create a new transcoding profile, see docid 3l1dnio6v 15jzcfdhrkn if you would like to preserve closed captions for this source, verify that the preserve closed captions checkbox is selected (default) if you would like to crop the input stream, select the crop checkbox and set the cropping parameters as follows cropping parameters in the units section, select the type of units used to define the crop options are pixels or percentages enter the crop position for each of the parameters left , top , width and height in the appropriate fields if you would like to assign the transcoding process to a multi gpu broadcaster, select the assign to gpu checkbox, and then select from the drop down list the desired gpu instance options are 0 (default), 1, 2 and 3 this feature is useful if you are running several heavy transcoding activities, as it enables you to distribute the load among several different gpus in the pad to cbr field, enter the amount of cbr padding to be added (in kbps) in the configuration section, select the alert on pid changes checkbox if you would like to generate email notifications whenever a pid change is detected select the log scte 35 checkbox if you would like to log scte 35 markers for this stream to log scte 35 markers, scte 35 needs to be enabled both on the ingest cluster and on the source configuration scte 35 logging is only available for v13 1 40262+ broadcasters if log scte 35 was selected, you can choose to receive alerts for scte 35 markers by selecting the enable scte 35 alerts checkbox additional scte 35 options are available when you expand the scte 35 manipulation section scte 35 manipulation here you can enable scte 35 manipulation specify the length of a search window for a null packet for scte 35 intertion set the scte 35 pid remove any existing scte 35 messages from the stream see the parameters table below for an explanation of these options in the public output field, if you would like to allow access to the stream directly through a supported player, select the allow checkbox if you selected the allow checkbox, then enter a password in the password field to authenticate access to the stream under content analysis select one of the following options full select this option if you would like to enable full content analysis (cqa), including analysis of the stream's audio and video content, including audio levels, audio silence detection, frozen video detection, and more tr101 only select this option to perform tr101 analysis only (without video and audio content analysis) the analysis can be used to check the integrity of the ts and the most important elements of the stream the analysis includes priority 1 and 2 to learn more about tr101 analysis see https //www etsi org/deliver/etsi tr/101200 101299/101290/01 03 01 60/tr 101290v010301p pdf none no content analysis is enabled it is generally recommended to enable full content analysis unless it is causing technical problems if content analysis is disabled, the system won't detect errors in the video and audio content of the stream and won't generate warnings for such events if monitoring cea 608 closed captions requires using a version 14 4 or newer broadcaster monitoring cea 608 closed captions requires using a version 14 4 or newer broadcaster if you would like to monitor cea 708 closed captions, select monitor cea 708 checkbox if monitoring cea 708 closed captions requires using a version 14 4 or newer broadcaster if you would like to disable auto pull, select the disable auto pull checkbox disabling auto pull will lock channels using this source to the source's ingest cluster and targets to the source's current active broadcaster this setting only applies to pass through channels if auto pull is enabled , in the auto pull latency \[ms] field, specify the maximum latency for auto pull actions (default 1000 ms) in the webrtc playback section, select the desired playback method webrtc enables you to monitor the stream via web browsers and mobile applications with real time communication (rtc) webrtc needs to be activated independently for each source in zen master (by default it is disabled) select one of the following options disabled users will not be able to view this source using webrtc (default) pass through passes the stream through to webrtc without transcoding this option can only be used if the input stream is already in a webrtc compliant format (video h 264 codec with baseline or main profile and no b frames, audio opus codec) auto zen master automatically transcodes the stream using the optimal profile for each specific user in this option zixi broadcaster will decode the video, transforming it into raw frames, which will be passed to the webrtc library, where it will be re encoded for each individual user best quality however, if monitored by multiple users this can consume extensive resources 1080p/720p/480p/360p zen master transcodes the stream to a webrtc compliant profile with the specified resolution the transcoding is done by zixi broadcaster's transcoder this method requires a zixi broadcaster with x264 or nvidia for transcoding this method allows many users to monitor the stream without encoding separately for each individual user, which saves cpu capacity since there is only one stream version, it is recommended to encode to a low resolution and low bitrate so that the stream will be viewable by all users monitoring the stream select the ignore transcode thresholds checkbox if you would like to override the transcode thresholds on your ingest cluster (i e to allow use of full cpu/gpu and memory capacity) in the initial state section, select the disabled checkbox if you would like to disable this source upon initial configuration select the muted checkbox if you would like to disable error/recovery notifications for this source upon initial configuration you can enable/unmute the source at any time if you would like to adjust the advanced settings, click advanced the advanced settings fields are displayed in the auto pull mtu field, specify the maximum transmission unit (largest data packet that a network connected device will accept) in bytes for the auto pull to set the detection of frozen video, in the frozen video minimal duration field, specify the default minimal duration in seconds of frozen video after which the broadcaster will trigger a frozen video alert default 10 seconds this setting is supported for broadcaster version 16 3 and higher to set the detection of blank video, in the blank video minimal duration field, specify the default minimal duration in seconds of blank video after which the broadcaster will trigger a blank video alert default 10 seconds this setting is supported for broadcaster version 16 3 and higher select force i frames on scte 35 markers if a scte35 marker is detected and it contains a specific video timestamp (pts), the encoder will generate an idr frame on the video frame with the closest or equal timestamp if there is no timestamp in the scte35 marker, the transcoder will generate an idr frame as soon as it can in the html overlay url field, if you want to include an html overlay on the stream, such as a scoreboard, enter the url of the html the external html will be pulled directly to the processing broadcaster and rendered over the transcoded video output for more information, see docid 1svyta7p777nbtqpn8yt8 click save transcoded source configuration parameters table parameter description info name specify a name for the transcoded source in zen master tags select one or more of the predefined tags from the drop down list tags are used for access control by selecting an tag, you are relating this source to that tag tags are associated with certain roles (through the users & roles screen), and roles, in turn, are associated with users and user groups if you would like to create a new tag, see docid\ ypm9tw81ap6nq8stkv4rd events configuration profile select from the dropdown list the profile that you would like to apply to this source by default, the default profile is applied note events profiles consist of a series of rules that determine precisely how various types of events are logged and what results they trigger location (optional) the source's location is used to represent it in the proper position in the map display (see docid\ sfzm6jvorvuigo7x0dnue ) by default, the location is determined automatically based on the source's ip enter identifying info for the location (e g street address, zip code, coordinates) and select the desired location from the suggestions that are shown input source select from the drop down list the source that the transcoded source is based on configuration ingest cluster select from the drop down list one of the available ingest clusters as the destination for the source target broadcaster/s specify which broadcaster/s within the cluster on which zen master can deploy the source either select a specific broadcaster to be used or specify your preference for using primary vs backup broadcasters options are prefer primary broadcasters, primary broadcasters only , backup broadcasters only or prefer backup broadcasters note for managed clusters, it is not recommended to select a specific broadcaster, as the broadcaster’s availability may not remain stable transcoding profile select one of the pre configured transcoding profiles to apply to this source if you would like to create a new transcoding profile, see docid 3l1dnio6v 15jzcfdhrkn preserve closed captions if you would like to preserve closed captions for this source, select this checkbox (default) crop if you would like to crop the input stream, select this checkbox and set the cropping parameters as follows in the units section, select the type of units used to define the crop options are pixels or percentages enter the crop position for each of the parameters left, top, width and height in the appropriate fields assign to gpu select this checkbox if you would like to assign the transcoding process to a multi gpu broadcaster, and then select from the drop down list the desired gpu instance options are 0 (default), 1, 2, and 3 note this feature is useful if you are running several heavy transcoding activities, as it enables you to distribute the load among several different gpus pad to cbr \[kbps] specify the amount of cbr padding to be added (in kbps) this parameter is optional if you do not specify a ts bitrate, the transport stream will be variable bitrate (vbr) with no additional null packets added if you specify a bitrate, the transport stream will be constant bitrate (cbr) where null packets are added as necessary to achieve the specified bitrate cbr transport streams are typically required when sending a stream to a satellite head end or to a professional integrated receiver decoder (ird) the overhead of mpeg ts is about 7% to determine the bitrate setting, sum the max video bitrate and audio bitrate from the encoding profile and then add the other pids (if choosing to pass all pids) and add 7% if the bitrate needed for the transport stream exceeds the value specified, the broadcaster will give a “bitrate too low” error message vbr transport streams are typically used for hls, dash, rtmp, and other similar live streaming workflows alert on pid changes if you would like to generate email notifications whenever a pid change is detected, select this checkbox log scte 35 if you would like to log scte 35 markers for this stream, select this checkbox note to log scte 35 markers, scte 35 needs to be enabled both on the ingest cluster and in the source configuration note scte 35 logging is only available for v13 1 40262+ broadcasters enable scte 35 alerts (for log scte 35) if you would like to receive alerts for scte 35 markers, select this checkbox public output if you would like to allow access to the stream directly through a supported player, select the allow checkbox password (for public output) if you selected allow in the public output field, specify a password in this field to authenticate access to the stream content analysis select one of the following options full select this option if you would like to enable full content analysis (cqa), including analysis of the stream's audio and video content, including audio levels, audio silence detection, frozen video detection, and more tr101 only select this option to perform tr101 analysis only (without video and audio content analysis) the analysis can be used to check the integrity of the ts and the most important elements of the stream the analysis includes priority 1 and 2 to learn more about tr101 analysis see tr 101 290 technical report none no content analysis is enabled note it is generally recommended to enable full content analysis unless it is causing technical problems if content analysis is disabled, the system won't detect errors in the video and audio content of the stream and won't generate warnings for such events monitor cea 608 closed captions if you would like to monitor cea 608 closed captions, select this checkbox note monitoring cea 608 closed captions requires using a version 14 4 or newer broadcaster monitor cea 708 closed captions if you would like to monitor cea 708 closed captions, select this checkbox note monitoring cea 708 closed captions requires using a version 14 4 or newer broadcaster disable auto pull if you would like to disable auto pull, select this checkbox note disabling auto pull will lock channels using this source to the source's ingest cluster and targets to the source's current active broadcaster this setting only applies to pass through channels auto pull latency \[ms] specify the desired latency for auto pull actions (default 1,000 ms) ignore transcode thresholds select this checkbox if you would like to override the transcode thresholds for your ingest cluster (i e to allow use of full cpu/gpu and memory capacity) scte 35 manipulation enable scte 35 manipulation select checkbox to enable scte 35 manipulation scte 35 pid set the scte 35 pid in which the messages will be inserted remove existing scte 35 remove any existing scte 35 messages from the stream null packet search window (ms) look for a null packet to insert scte 35 messages into the stream if the stream is vbr , set the value to 0 scte 35 messages can be inserted anywhere, and do not need a null packet if the stream is cbr , the downstream receiver may need a cbr stream inserting the scte 35 message into a null packet ensures the stream will remain cbr; however, it may delay the insertion of the message up to the length of the search window initial state disabled select this checkbox if you would like to disable this source upon initial configuration muted select this checkbox if you would like to disable error/recovery notifications for this source upon initial configuration advanced auto pull billing code if you would like to track usage for this source when using auto pull connections, enter the billing code that corresponds to this stream the relevant billing can be obtained from the organization that received the billing code from zixi auto pull billing password enter the password that corresponds to this auto pull billing code auto pull mtu specify the maximum transmission unit (largest data packet that a network connected device will accept) in bytes for the auto pull encoder if you would like to specify a specific encoder to use for transcoding (decode and reencode processes), select the desired option from the drop down menu by default, if there is an nvidia gpu available, it would auto detect and use that, however you can override this behavior by selecting a different option from the list frozen video minimal duration specify the default minimal duration in seconds of frozen video after which the broadcaster will trigger a frozen video alert default 10 seconds this setting is supported for broadcaster version 16 3 and higher for existing sources, you may need to restart the source blank video minimal duration specify the default minimal duration in seconds of blank video after which the broadcaster will trigger a blank video alert default 10 seconds this setting is supported for broadcaster version 16 3 and higher for existing sources, you may need to restart the source force i frames on scte 35 markers selecting this option will do the following if a scte35 marker is detected and it contains a specific video timestamp (pts), the encoder will generate an idr frame on the video frame with the closest or equal timestamp if there is no timestamp in the scte35 marker, the transcoder will generate an idr frame as soon as it can html overlay url if you want to include an html overlay on the stream, such as a scoreboard, enter the url of the html the external html will be pulled directly to the processing broadcaster and rendered over the transcoded video output for more information, see docid 1svyta7p777nbtqpn8yt8 use html overlay for audio select this checkbox to use the audio channel in the html overlay feed overlay audio pid specify the pid of the overlay audio transcode tsid specify the transport stream id in the pat that allows downstream receivers to uniquely identify transport streams within a delivery network