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outdoor_station:feature_guides:how_to_configure_audio_or_video_codec_in_r2x [2019/01/03 18:16] (current)
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 +====== How to configure audio or video codec in R2X======
 +\\ <ff sans-serif><​fs medium>​Go to **Account - Advanced** to configure SIP call related codec.
 +\\ **Sip Account:** To choose which account to configure.
 +\\ {{ :​1.outdoor_station:​feature_guides:​outdoor_a_v_codec_1.png?​nolink&​650* |SIP account}}
 +\\ **Audio Codec:** R27 support four audio codecs: PCMA, PCMU, G729, G722. Different audio codecs require different bandwidth, users can enable/​disable them according to different network environment.</​fs></​ff>​
 +\\ {{ :​1.outdoor_station:​feature_guides:​outdoor_audio_codec.png?​nolink&​650* |Audio codec}}
 +  <​note tip><​ff sans-serif><​fs medium>​Bandwidth consumption and sample rates are as below:</​fs></​ff></​note>​
 +^  Codec  ^  Bandwidth ^  Sample Rates  ^
 +|PCMA     ​|64kbit/​s |8kHz ​        |
 +|PCMU  |64kbit/​s |8kHz ​        |
 +|G729  |8kbit/​s |8kHz ​        |
 +|G722  |64kbit/​s |16kHz ​       |
 +\\ <ff sans-serif><​fs medium>​**Video Codec:** R27 support H.264 standard, which provides better video quality at substantially lower bit rates than previous standards.
 +\\ **Codec Resolution:​** R27 support four resolutions,​ QCIF, CIF,  VGA, 4CIF and 720P.
 +\\ **Codec Bitrate:** To configure bit rates of video stream. ​
 +\\ **Codec Payload:** To configure RTP audio video profile.
 +\\ {{ :​1.outdoor_station:​feature_guides:​outdoor_videio_codec.png?​nolink&​650* |Video codec}}
 +\\ Go to **Phone - Call Feature** to configure multicast related codec.
 +\\ {{ :​1.outdoor_station:​feature_guides:​outdoor_multicast_codec.png?​nolink&​650* |Multicast codec}}
 +\\ Go to **Intercom - RTSP** to configure RTSP related codec.\\
 +\\ **RTSP Stream:** To enable RTSP video and select the video codec. R27 supports H.264 video codec by default. \\
 +\\ **H.264 Video Parameters:​** H.264 is a video stream compression standard. Different from H.263, it provides an approximately identical level of video stream quality but a half bit rate. This type of compression is sometimes called MPEG-4 part 10. To modify the resolution, framerate and bitrate of H.264.
 +\\ **MPEG4 Video Parameters:​** MPEG4 is one of the network video image compression standard. It supports the maximum compression ratio 4000:1. It is an important and common video function with great communication application integration ability and less core program space. To modify the resolution, framerate and bitrate of MPEG4.
 +\\ **MJPEG Video Parameters:​** Called motion joint photographic experts group. It is a video encoding format, in which each image is compressed separately by JPEG. MJPEG compression can produce high quality video image and has a flexible configuration in video definition and compressed frames. To modify the resolution, framerate and bitrate of MJPEG.</​fs></​ff>​
 +<note tip><​ff sans-serif><​fs medium>​R29 can only support to modift the resolution, framerate and bitrate of H.264.</​fs></​ff></​note>​