Adding ASI Streams

if you have an card that is compatible with zixi \[1] docid\ egsecuxkmhfjtxhxptwxp , the asi card will convert the asi mpts stream to an ip/mpts stream and transmit it to the zixi broadcaster by adding an asi input stream, you can configure zixi broadcaster to listen to the specified asi card from which the stream will be transmitted note that before the stream is input into zixi broadcaster, the raw video has already been encoded and embedded into a transport stream wrapper so, the asi card in the zixi broadcaster inputs that transport stream signal and hands it over to the zixi broadcaster, which natively understands transport stream this means that the asi card in the zixi broadcaster is not doing any processing or changing the video; it is just taking it off the coax cable and providing it to the system the duration of the delayed stream should be less than or equal to the time shifted stream to add an asi stream in the zixi broadcaster navigation menu, click the inputs tab in the menu bar, click new input and select the asi type the add a new input stream window is displayed new asi input enter the unique stream id note this must be identical (case sensitive) to the stream name configured in zec select the maximum concurrent connections to this stream from the max outputs drop down list default unlimited select the show in matrix check box to display this stream in the matrix (see using the matrix docid\ bp6mo9f2qbxmu6gurkog4 ) default selected specify the stream parameters (see input stream parameters table docid\ egsecuxkmhfjtxhxptwxp below) if you want to enable time shift , select this checkbox (see input stream parameters table) if you want to transmit as multicast , select this checkbox (see input stream parameters table) if you want to enable encryption, select this checkbox (see input stream parameters table) for more information, see encrypting an input stream in zixi broadcaster docid\ v3ryrbn08r4cojwl wvoq if you want to configure the recording parameters , specify them in the respective fields (see input stream parameters table) click ok the “input added” message appears at the top of the screen the asi stream is added to the zixi broadcaster and now appears in the list of streams available in the zixi broadcaster inputs ui input stream parameters table parameter description stream parameters card select the available asi card from the drop down list only the physical asi cards that have been installed on the machine will appear in the drop down list max bitrate specify the maximum expected bitrate for memory allocation recommended 2x the actual bitrate, which will prevent buffer overruns (especially with vbr streams) default 8000 note – overflows will typically occur when the max bitrate isn’t sufficient read buffer specify the input read buffer to fill before passing data to the application a larger buffer size should be specified for higher bitrates; a smaller buffer size will be more responsive and smoother in lower bitrate streams adjust by local time smoothing latency the smoothing feature uses a buffer to time packets according to the stream’s clock this is useful when there are bursts in the rate at which the stream arrives the smoothing feature creates a queue in the buffer, allowing smoother entry into the broadcaster the smoothing parameter defines the size of the buffer in milliseconds a larger buffer enables smoother entry; however, it may influence the latency rate enable time shift select this checkbox to record the stream content and broadcast it after a specified delay to deploy an input stream that uses the current stream’s time shift, you need to configure a “delayed” input stream, see adding delayed streams docid\ zp5ql 5kthhdphmrhddhe maximum delay \[hh\ mm\ ss] (for time shift enabled) specify the maximum time delay of this input enable multicast on pull outputs select this checkbox to enable the transmission of this stream’s outputs as multicast a zixi receiver that will pull the stream will receive it in multicast by default, zixi broadcaster is configured to allow transparent fallback to unicast if it is out of the lan requires enabling multicast pull in the settings multicast only (for multicast enabled) select the check box to force only multicast outputs enable encryption select this checkbox to encrypt the input stream the stream encryption prevents any further processing, such as analysis, transcoding, etc the encryption works in the following way if the stream has been encrypted at the source the stream will remain encrypted regardless of the output type zixi broadcaster can only encrypt the stream after it has been decrypted if the stream is being encrypted by the zixi broadcaster it will be encrypted only if the output is a zixi pull or zixi push output all other outputs will send out an unencrypted stream for more information, see encrypting an input stream in zixi broadcaster docid\ v3ryrbn08r4cojwl wvoq encryption type (for encryption enabled) specify the type of encryption (aes 128/192/256) encryption key (for encryption enabled) click generate to generate an encryption key the generated encryption key must be sent to the end user to decipher the received encoded stream recording parameters select this checkbox to customize the recording parameters destination type select the radio button for the desired storage type and then fill in the relevant parameters record to disk – the recording is saved on the local disk it is possible to record to an external destination by replacing the default storage location with a symbolic link to learn more, see the using an external storage docid\ z2amp6 fj7crckkfqrthq section record to s3 – the file is saved to your aws s3 bucket the mechanism uses aws multipart upload amazon advises defining a lifetime rule for objects in the destination bucket record to disk parameters file name template specify the file name pattern that zixi will use to generate when saving the recorded content a separate file will be generated for each recording up to the time specified in the max recorded file duration parameter (see above) after this duration, a new file will be generated the file name pattern can include any string and up to five variables listed below only the %t=hh mm ss creation time is mandatory you can change the order of these variables and add text as long as you maintain the legitimate structure of the file in linux and windows %s=stream id – optional %y=year – optional %m=month – optional %d=day – optional %t=hh mm ss creation time – mandatory %u=yyyymmddthhmmssz utc timestamp – optional for example, the following pattern %y recording%t ts will generate the following file name 2017 recording15 32 35 ts max recorded file duration \[hh\ mm] specify the maximum time allotted for recording a video stream default 2 hours keep recorded files for \[hh\ mm] specify the maximum time for storing the recording default 0 hours custom path optionally specify a storage location for the recorded files that is relative to the root folder this location bypasses the location specified as the root folder in the settings > general screen record to s3 parameters file name template specify the file name pattern that zixi will use to generate when saving the recorded content a separate file will be generated for each recording up to the time specified in the max recorded file duration parameter (see above) after this duration, a new file will be generated the file name pattern can include any string and up to five variables listed below only the %t=hh mm ss creation time is mandatory you can change the order of these variables and add text as long as you maintain the legitimate structure of the file in linux and windows %s=stream id – optional %y=year – optional %m=month – optional %d=day – optional %t=hh mm ss creation time – mandatory %u=yyyymmddthhmmssz utc timestamp – optional for example, the following pattern %y recording%t ts will generate the following file name 2017 recording15 32 35 ts max recorded file duration hh\ mm] specify the maximum time allotted for recording a video stream default 2 hours url specify the url of the s3 bucket ignore tls certificate errors tls certificate for s3 bucket might be detected as faulty if bucket name contains dot\[s] when this option is selected, zixi broadcaster will ignore the tls certificate errors and transmit the stream to its destination access key the access key that is used for accessing the s3 bucket secret key the secret key that is used for accessing the s3 bucket notes the following asi cards have been tested and found to be compatible with zixi on both linux centos and windows systems dta 2144b (4 ports) or dta 2145 (2 ports) additional types of asi cards may also be compatible