Pelco C2953M-B manual Endura Signing, Rate Control, Profile, GOP Structure

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ENDURA SIGNING

Enabling the Endura Signing feature allows an Endura® system to authenticate video from an Endura recorded stream. This setting is only available with H.264.

RATE CONTROL

The rate control setting determines the bit rate and quality of each frame in the video stream. There might be a trade-off between image quality and the resources required for video storage when selecting a rate control setting.

CBR: The constant bit rate (CBR) streams video at a fixed number of bits per second. CBR uses the full capacity of the bit rate setting for scenes with or without motion. Video is always streamed at the user bit rate setting.

PROFILE

The profile defines the subset of bit stream features in an H.264 stream, including color reproduction and additional video compression. It is important that the selected profile is compatible with the recording device so that a stream can be decoded and viewed.

Baseline: A simple profile with a low compression ratio. A baseline profile is compatible with more recorders but uses more bits to compress quality video than the other profiles. This profile supports I-frames and P-frames. Use the baseline profile in applications with limited scene changes; for example, an indoor scene with a single, unchanging primary light source and minimal motion.

Main: An intermediate profile with a medium compression ratio. Main is the default profile setting. This profile is compatible with most recorders and uses fewer bits to compress video than the baseline profile; however, it uses more bits than the high profile. The main profile supports I-frames, P-frames, and B-frames.

High: A complex profile with a high compression ratio. This is the primary profile for high-definition television applications; for example this is the profile adopted for Blu-ray and HD-DVD. The high profile supports I-frames, P-frames, and B-frames.

GOP STRUCTURE

The group of pictures (GOP) structure is the sequence in which frames are placed within a video stream. The GOP structure always includes intra-coded frames (I-frames) and predictive coded frames (P-frames), but it can also include bi-directionally predictive coded frames (B-frames).

Each GOP structure starts with an I-frame: an image of the complete scene that is used as the reference frame in the structure. P-frames record data changes that are different than the previous frame. This allows the video encoder to save space since the data of the I-frame is not duplicated. B-frames not only capture data changes from the previous frame, but they also capture the data changes from the frame after the B-frame. B-frames are more compressed than P-frames and require more processing power to be decoded.

The camera can be configured to use one of the following GOP structures:

IP: A compression that uses only I-frames and P-frames to provide low latency and a high level of decoder support. This GOP structure is compatible with more recorders and decoders than IBBrBP.

IBBrBP: The most sophisticated H.264 compression available. IBBrBP provides the highest quality image at a given bit rate, but it also increases the latency of the video and requires more processing power for decoders.

C2953M-B (10/09)

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Contents IXE Series Extended Platform Network Camera Contents Specifications C2953M-B 10/09 List of Illustrations Video Quality Caution Important NoticesLegal Notice Regulatory NoticesModels IntroductionBUILT-IN Analytics Getting Started Parts ListProduct Overview Camera Connections and FeaturesRemove Back Cover Product LabelPin InstallationC2953M-B 10/09 Service Cable CAT5 Cable WiringConnecting a Relay Device ALARM, RELAY, and 24 VAC ConnectorSingle Camera Wiring Multiple Camera WiringSupervised Alarms Connecting AlarmsAlarm Connections Minimum System Requirements Camera Configuration SequenceOperation Logging on to the Camera Accessing the IP CameraLive Video Live Video page Icons Multicast Selecting a StreamUnicast Displaying Video in the Multiscreen View Taking a SnapshotAccessing the Camera Menus SettingsSystem Tab General SettingsTime Settings Changing the Device Name Configuring the Time SettingsRebooting the Camera Restoring ALL Camera DefaultsNetwork Tab General Network SettingsSSL Settings SSH SettingsTurning OFF Dhcp Turning on DhcpSelecting the Secure Sockets Layer Mode Generating a SELF-SIGNED Certificate Generating a Certificate RequestEnabling Secure Shell Imaging Tab Configuring the Orientation of the Scene Changing the Digital Processing Settings Selecting Auto Exposure Settings Day Night Settings on Selecting Manual Exposure Settings DAY Night Auto and Manual Modes DAY Night SettingsDAY Night Auto Mode DAY Night Manual ModeConfiguring Auto Focus Settings Configuring Manual Focus Settings Setting Tone MAP Options Selecting Auto White Balance Settings Selecting Manual White Balance Settings Streams Tab Video PresetsVideo Configuration Audio Configuration Selecting a Video Preset Configuration Configuring a Custom Video Stream Configuration Compression Standards GOP Structure Endura SigningRate Control ProfileSelecting the Audio Configuration Settings Users Users and Groups TabGroup GroupsDeleting a User Creating a NEW UserEditing a User Deleting a Group Creating a NEW GroupEditing a Group Setting the Camera to Mixed General Settings for Users and GroupsSetting the Camera to Node Sources Events TabHandlers Editing AN Event Source Creating AN Alarm Event SourceCreating a Timer Event Source Creating a System Event SourceCreating AN Event Handler Send Email Deleting AN Event SourceCreating AN Event Handler Upload Jpeg to FTP Server Creating AN Event Handler Write Jpeg to SD CardDeleting AN Event Handler Creating AN Event Handler OPEN/CLOSE RelayEditing AN Event Handler Example Handler Filter Setup Log Off Menu Help MenuGeneral SpecificationsModels Required SystemVideo ElectricalMechanical Physical EnvironmentalProduct Warranty and Return Information
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