Qvidium QVDEC Скачать руководство пользователя

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Q V i d i u m

T E C H N O L O G I E S , I N C .

QVidium H.264 HD Video Codecs™

For Broadcast and Professional Video Applications

Model: #

QVENC Encoder

Model: #

QVDEC Decoder

Model: #

QVPRO Codec

User’s Manual v.15

September 12, 2014

Application Firmware Version 261



2011-2014 QVidium

Technologies, Inc.

12989 Chaparral Ridge Road, San Diego, CA 92130

Phone 858.792.6407 • Fax 858.792.9131

Содержание QVDEC

Страница 1: ...ofessional Video Applications Model QVENC Encoder Model QVDEC Decoder Model QVPRO Codec User s Manual v 15 September 12 2014 Application Firmware Version 261 2011 2014 QVidium Technologies Inc 12989 C...

Страница 2: ...3 Configuring the Encoder for RTSP and Server Mode 32 5 Decoder Configuration and Operation 33 5 1 Decoding Configuration and Web Interface 33 5 2 Decoding Profile Settings 33 5 2 1 Video Tab 33 5 2 2...

Страница 3: ...ts QVENC or QVDEC for which the section applies As of the current firmware release V 261 licenses are required to enable HD encoding on the QVENC and QVPRO The QVENC also requires a license to enable...

Страница 4: ...e encoding and transcoding capabilities of the QVPRO However while the QVPRO has SDI and HDMI inputs the QVENC keeps the SDI HD SDI 3G SDI interface but replaces the HDMI input with Composite and S Vi...

Страница 5: ...can also be reconfigured through a web browser when you know the IP address For a new unit or one having the factory default IP settings follow the steps below to reconfigure the network settings thr...

Страница 6: ...eed to change the URL in the web browser to point to the new address after clicking on Apply The Network Configure panel allows you to modify the static IP address parameters and DNS server settings o...

Страница 7: ...USB memory stick you can reset all of the network settings on the QVPRO to their factory default values Go to http www qvidium com reset copy the autorun file on a USB flash and plug flash into QVPRO...

Страница 8: ...e configured at least one DNS server Likewise you can use Traceroute to ping every router along the route from the QVPRO to the IP or DNS address you specify Traceroute is very helpful in locating ins...

Страница 9: ...assword If you lose the password and need to reset it you can go to http www qvidium com reset click on Reset Password copy the autorun file onto a USB flash and plug flash into QVPRO File must be sav...

Страница 10: ...in the codec Note Sometimes a web browser will not be able to continue to reconnect to the new HTTP Daemon after it restarts causing you to no longer see the update progress If this happens please wa...

Страница 11: ...or Switch Description 1 SDI Glows green with active SD SDI or HD SDI input 2 HDMI Glows green when video input is a valid HDMI signal 3 Power Glows green when the power is connected and unit is on 4 R...

Страница 12: ...or ASI signal on SDI input 6 SDI ASI Input SD SDI HD SDI 3G SDI DVB ASI input with embedded audio 7 HDMI IN HDMI HD Input 8 SDI ASI Output SD SDI HD SDI 3G SDI DVB ASI output with embedded audio 9 HDM...

Страница 13: ...the power is connected and unit is on 4 Reset Various reset functions See description in manual Note Whether this indicates Composite CVBS or S Video Y C depends upon video input selection from last t...

Страница 14: ...put pairs 7 S PDIF Optical digital audio input fo AC3 Dolby Digital audio 8 SDI Input SDI video input auto detects SD SDI HD SDI and 3G SDI input 9 3G HD SD Glows green to indicate 3Gbps HD SDI or SD...

Страница 15: ...1 Power Glows green when the power is connected and unit is on 2 Reset Various reset functions See description in manual Ref Port Description 3 USB 2 USB 2 0 Ports external storage or LCD console or L...

Страница 16: ...VBS Output Composite SD analog video output PAL or NTSC 5 SDI Output SD SDI HD SDI and 3G SDI output with embedded audio 6 HDMI OUT HDMI HD Output Note Serial number not shown is located above S PDIF...

Страница 17: ...192 168 1 23 encode if using the default address Use username encode and the password for the admin user default admin You can change this password from the main System Password menu 2 Select the Vid...

Страница 18: ...rver or network equipment that will be receiving the stream Enter the desired Video Bit Rate in bps and modify the other audio and video parameters such as Video Input and Audio Bit Rate in bps to sui...

Страница 19: ...egulates the output timing of the IP packets to maintain a constant inter packet spacing thereby minimizing packet jitter to under 25ms This helps to reduce packet loss on Internet links that limit pa...

Страница 20: ...to one of several devices a Network Ethernet port for MPEG Transport Stream TS over IP output an ASI port for DVB ASI compatible output on QVENC with optional ASI daughter card to a File on a USB or N...

Страница 21: ...way the encoder can automatically switch between HD and SD video encoding with appropriate bit rates to match by simply changing the SDI input signal Video Encoding You can select primarily between H...

Страница 22: ...put video resolution and frame rate using the corresponding parameters under the Advanced Encoding tab Without an HD encoding license it will automatically scale am HD video input to SD To produce the...

Страница 23: ...am and the replacement packets ARQ shares similarities with robust packet transport protocols such as TCP IP in that both use feedback to create robust network packet transport However TCP IP uses a s...

Страница 24: ...ackets in a synchronized network de jitter buffer that maintains a constant configurable delay for incoming packets The de jitter buffer processes RTP sequence numbers and reorders packets as necessar...

Страница 25: ...file you wish to reset and click Default This will reset all the parameters to a known set of pre tested values Figure 1b Advanced Encoder Configuration Advanced Encoding Parameters Stream Mode This s...

Страница 26: ...the SDI signal Note For SDI input without embedded audio the encoder will not start with Audio Video set to Both This must be set to Video Only for the encoder to start or alternatively on the QVENC...

Страница 27: ...essary for the QVPRO and can be set to No Dynamic Bitrate This is an experimental that causes the operating system to limit the peak output bit rate of the Ethernet port s to a value 20 higher than th...

Страница 28: ...e easily manage and choose among multiple program feeds You can supply a short description of the video feed as the SAP Session Name This only works for multicast RTP streams Insert Metadata and Metad...

Страница 30: ...g to check the log file Near the end of that page you should see the line Start encoding OK If the video source is absent or invalid the last line of the log may read Video NOT locked waiting for vali...

Страница 31: ...line Control The program qvidium qvctrl allows you to communicate with the encoder via a command line interface such as telnet ssh or the RS 232 Console port This allows you to dynamically and seamle...

Страница 32: ...contact www evostream com for the EVOstream add on to the QVENC and QVPRO To set up the QVPRO or QVENC codec for the unsupported version of RTSP operation to a computer running VLC for example you ca...

Страница 33: ...setup and configuration of a remote QVidium video server respectively Please refer to Appendix B for a detailed description of each of these parameters 5 Press the Save button to save your changes If...

Страница 34: ...esolution using the Output Resolution and Format pull down menu The format is in the form of XXXX i or p YYYY where XXXX is the horizontal resolution eg 1080 corresponding to 1920x1080 resolution or 7...

Страница 35: ...ver in some systems the audio entering the encoder may have been preprocessed and delayed such as with a Dolby AC3 encoder prior to entering the encoder This Audio sync offset control allows you to ad...

Страница 36: ...In rare circumstances such excessive packet loss can cause the genlock mechanism to incorrectly estimate the video clock frequency and result in the decoder losing color sync Disabling Genlock by sett...

Страница 37: ...ble with third party video encoders Enter the UDP Port on which to receive IP video packets Enter a Multicast Address if receiving multicast Ethernet or IGMP v3 packets otherwise leave this field blan...

Страница 38: ...n the encoder is restarted with a different encoding type or resolution This can also help if you are experiencing color loss or other decoder problems due to excessive packet loss If you are experien...

Страница 39: ...er tab shown in Figure 3d above For more details on these features please consult Appendix B You should set the Server Type to None the default when not using a QVidium server or connecting to an RSTP...

Страница 40: ...ting a unicast video IP stream leave this field blank The decoder interprets the video and audio signals as UDP IP packets in all cases regardless of the type of packet transport you select Specifying...

Страница 41: ...t retransmission and recovery process The ARQ mechanism will attempt as many retries as possible within this target latency time Thus larger target latency times increase the delay before video is out...

Страница 43: ...ly create a new profile that configures that second codec specifying the file you had just used to save the configuration of the first codec Default will reset the configuration settings for the selec...

Страница 44: ...eo Codec includes a number of features to aid in system security and logging A Management Configuration page shown below allows you to specify the HTTP port for web access and whether to enable or dis...

Страница 45: ...ws all the current trap configuration settings Figure 6 SNMP Trap Configuration For the encoder with traps enabled an SNMP trap notification will be sent when the video input loses or has no signal It...

Страница 46: ...ork adapter such as any WiFi adapters 9 2 Resetting the Network Parameters If you cannot determine the IP address using CodecManager you have two other alternative methods of resetting the IP address...

Страница 47: ...ct that as a result of a failed update procedure the application memory had somehow become corrupted you can completely reinstall the application software with the following procedure The Linux Kernel...

Страница 48: ...ile MP4 Selecting File TS or File MP4 will record the encoder output to a file on a mounted USB storage device File TS will save the encoded stream as an MPEG Transport Stream typically given a ts fil...

Страница 49: ...ording the Usage menu can help you determine how much space remains To play a video clip simply click on File Play then select the file you want to play by clicking once on it Next select the output r...

Страница 50: ...an then issue the unmount command umount media sda1 After this command successfully completes you can safely remove the external storage device and if desired insert another storage device As long as...

Страница 51: ...audio sampling rate To encode using a different video bitrate or to set other encoding parameters use the h option as described above to first find the options you are interested in and then add them...

Страница 52: ...th ResyncSDI enabled a glitch in the SDI input will cause a brief disruption in the stream Decoder Genlock may initially cause the output frequency to drift away from the actual frequency until the Ge...

Страница 53: ...the Decoder Status page shows No Data then you likely have a firewall before the decoder blocking the traffic You must add a Port Forwarding rule on the decoder side firewall to allow UDP traffic on...

Страница 54: ...N link light and activity lights for the RJ 45 Ethernet port on both encoder decoder and switch s are lit 4 Make certain that you have entered the correct IP address for the destination under Encoder...

Страница 55: ...end IP packets 2 Make certain that device is powered on and connected to your network 3 Check that green LAN light in front is lit and link light at RJ 45 port is on 4 Try pinging the encoder by enter...

Страница 56: ...ncoding and decoding video 1 First eliminate any network problems by connecting the encoder and decoder to the same Ethernet switch Use CodecManager running on a PC also connected to that switch to ve...

Страница 57: ...QVidium Technologies Inc by either phone or e mail at Phone 858 792 6407 Phone Support Hours Monday Friday 9 00 am to 5 00 pm PST E mail support qvidium com E mail response time within 24 hours Techni...

Страница 58: ...not use an audio bitrate less than 64 Kbps unless you set the number of audio channels to 1 Even then setting the number of audio channels to 1 has the potential to cause unexpected halting of the en...

Страница 59: ...ginal 16 9 aspect ratio Video Input This allows you to select between SDI and HDMI video inputs The QVPRO H 264 HD Video Codec requires embedded digital audio from the SDI and HDMI inputs when you sel...

Страница 60: ...88 byte MPEG 2 Transport Stream packets per IP packet The standard MTU for Ethernet packets permits a maximum of 7 TS packets per IP packets which is the default ARQ The parameters below ONLY pertain...

Страница 61: ...equence numbing RTP protocol has the advantage of providing lost packet and other network statistics UDP mode disables all error correction It expects raw UDP packets without an RTP header and expects...

Страница 62: ...ecoder sends out a series of packets upstream to the encoder to measure the round trip time and automatically set the number of retries and round trip time parameters based on the Target Latency param...

Страница 63: ...quire that a minimum of one repeat request is sent to the video encoding source device regardless of the Target Latency However enabling Robust Mode will increase the minimum number of repeat requests...

Страница 64: ...ream from a QoS Proxy Server You must provide the IP address and control port for the QoS Proxy Server The decoder then sends a control packet upstream to the server when you start the decoder Server...

Страница 65: ...ror correction enabled Minimum Suggested Stream Bit Rates for general content such as movies assumes audio bitrate of 160 Kbps MPEG 2 Main Profile CBR mode 3 0 Mbps for Full SD video resolution 720x48...

Страница 66: ...o 64 Kbps and the Sample Rate to 32 KHz Any audio encoding results in 84 Kbps At low bitrates we have found that MPEG1 Layer2 Audio Encoding sounds best Note setting MPEG1 Layer2 to 56 Kbps results in...

Страница 67: ...pecs are only relevant to the QVPRO and QVENC For video output and decoding the specs are only relevant to the QVPRO and QVDEC Specifications Network Interface IEEE 802 3 1000 100 10 Base TX Gigabit E...

Страница 68: ...in Profile and Baseline Profile encoding up to Level 4 1 HD Input 1920x1080 60 or 50 fps progressive 1080p 1920x1080 30 or 25 fps interlaced 1080i 1280x720 60 or 50 fps 720p HD encoding 1920x1080 50 o...

Страница 69: ...chnologies Inc Page 69 of 71 Environmental Operating temperature 0 to 55o C Operating humidity 0 to 90 R H non condensing Non operating temperature 20 to 70o C Non operating humidity 0 to 95 R H non c...

Страница 70: ...ir or replacement e Any damage of the product due to shipment f Removal or installation of the product g Causes external to the product such as electric power fluctuations or failure h Use of supplies...

Страница 71: ...ed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if...

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