Video Images And Image Refresh Rate - Panasonic BL-C210 Series Operating Instructions Manual

1.2.8 Video Images and Image Refresh Rate

Using the [Refresh Rate] selector in the operation bar, you can select whether video images ([MJPEG],
[MPEG-4], or [H.264]) are displayed, or still images that are refreshed periodically (3 seconds, 5 seconds, etc.)
are displayed. You can change the default setting for [Refresh Rate] that is used each time the single camera
page is accessed (see Page 159).
Certain features are limited depending on the [Streaming Format] setting (see Page 209). Additionally,
[Refresh Rate] selection can be disabled for general users (see Page 152) and for guest users (see
Page 155).
MJPEG
MJPEG (Motion JPEG) is a video format that displays a continuous series of still images. Because each MJPEG
frame is a still image, this format offers high-quality images, but uses more bandwidth, and frame rate may
decrease as a result. To view images in MJPEG format, set the [Refresh Rate] selector to [MJPEG].
MPEG-4
MPEG-4 is a video format that updates images only when there is a variation in the image displayed, and as
a result, requires less bandwidth. MPEG-4 is useful in situations when less bandwidth is available, such as
when viewing camera images over the Internet. To view images in MPEG-4 format, set the [Refresh Rate]
selector to [MPEG-4], then select the desired streaming format under [Streaming Method].
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In order to view images using MPEG-4, [Streaming Format] on the [Video Streaming] page must be set to
[MPEG-4] (see Page 145). When this setting is changed, the camera must be restarted before the new
setting takes effect. When [MPEG-4] is selected, H.264 images cannot be viewed.
H.264
H.264 is a video format that offers high-quality images. Note, however, that the camera does not support
buffering and transferring H.264 images. To view images in H.264 format, set the [Refresh Rate] selector to
[H.264], then select the desired streaming format under [Streaming Method].
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In order to view images using H.264, [Streaming Format] on the [Video Streaming] page must be set to
[H.264] (see Page 145). When this setting is changed, the camera must be restarted before the new setting
takes effect. When [H.264] is selected, MPEG-4 images cannot be viewed.
Video streaming
H.264 and MPEG-4 images can be streamed using multicast, unicast, and HTTP (see Page 145). When
accessing the camera using HTTPS, multicast and unicast streaming is not possible: HTTP is the only available
streaming method.
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[Auto]: The first available streaming method will be used, beginning with multicast, then unicast, then HTTP.
The current streaming method is displayed below the camera image.
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[Multicast] (Multicast RTP): Multicast allows you to stream the same data over the network to multiple
parties, thus reducing the amount of data that is sent over the network.
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Multicast streaming is not possible when viewing camera images over the Internet.
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In order to use multicast streaming, the camera must be configured for multicasting (see Page 145).
Note that multicast streaming is not possible when viewing camera images on certain local networks.
Consult your network administrator before configuring the camera for multicasting.
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Images may break up when accessing the camera over a low bandwidth connection. This is normal.
In this case, select [Unicast] or [HTTP] as the streaming method.
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If images cannot be displayed or if images break up when [Multicast] is selected as the streaming
method, select [Unicast] or [HTTP].
1.2.8 Video Images and Image Refresh Rate
Operating Instructions 33