Examples with Codec org.red5.app.sip.codecs.Codec used on opensource projects

Example 1 with Codec

use of org.red5.app.sip.codecs.Codec in project bigbluebutton by bigbluebutton.

the class SdpUtils method getNegotiatedAudioCodec.

/**
     * @return Returns the audio codec to be used on current session.
     */
public static Codec getNegotiatedAudioCodec(SessionDescriptor negotiatedSDP) {
    int payloadId;
    String rtpmap;
    Codec sipCodec = null;
    MediaDescriptor md = negotiatedSDP.getMediaDescriptor(Codec.MEDIA_TYPE_AUDIO);
    rtpmap = md.getAttribute(Codec.ATTRIBUTE_RTPMAP).getAttributeValue();
    if (!rtpmap.isEmpty()) {
        payloadId = Integer.parseInt(rtpmap.substring(0, rtpmap.indexOf(" ")));
        sipCodec = CodecFactory.getInstance().getSIPAudioCodec(payloadId);
        if (sipCodec == null) {
            log.error("Negotiated codec {} not found", payloadId);
        } else {
            log.info("Found codec: payloadType={}, payloadName={}.", sipCodec.getCodecId(), sipCodec.getCodecName());
        }
    }
    return sipCodec;
}

Example 2 with Codec

use of org.red5.app.sip.codecs.Codec in project bigbluebutton by bigbluebutton.

the class SdpUtils method makeAttributeNegotiation.

/**
     * Here we make the negotiation of all attributes besides "rtpmap" (
     * these are negotiated on "makeMediaPayloadsNegotiation" method).
     * 
     * @param newSdp
     * @param localMedia
     * @param remoteAttribute
     */
private static void makeAttributeNegotiation(SessionDescriptor newSdp, MediaDescriptor localMedia, AttributeField remoteAttribute) {
    try {
        if (remoteAttribute.getAttributeName().equals(Codec.ATTRIBUTE_RTPMAP)) {
            log.info("\"rtpmap\" attributes were already negotiated.");
        } else if (!isPayloadRelatedAttribute(remoteAttribute)) {
            // We do nothing with attributes that are not payload 
            // related, like: "ptime", "direction", etc.
            // For now, we consider that they don't demand negotiation.                
            log.info("Attribute is not payload related. Do not negotiate it...");
        } else {
            String payloadId = getPayloadIdFromAttribute(remoteAttribute);
            if ("".equals(payloadId)) {
                log.error("Payload id not found on attribute: Name = [" + remoteAttribute.getAttributeName() + "], Value = [" + remoteAttribute.getAttributeValue() + "].");
            } else if (findAttributeByPayloadId(Codec.ATTRIBUTE_RTPMAP, payloadId, newSdp.getMediaDescriptor(localMedia.getMedia().getMedia())) != null) {
                // We must be sure this attribute is related with a payload 
                // already present on newSdp.                    
                //                    log.debug("Payload " + payloadId + " present on newSdp.");
                AttributeField localAttribute = findAttributeByPayloadId(remoteAttribute.getAttributeName(), payloadId, localMedia);
                Codec sipCodec = CodecFactory.getInstance().getSIPAudioCodec(Integer.valueOf(payloadId));
                if (sipCodec != null) {
                    String localAttibuteValue = "";
                    if (localAttribute != null) {
                        localAttibuteValue = localAttribute.getAttributeValue();
                    } else {
                        log.info("Attribute not found on local media.");
                    }
                    String attributeValueResult = sipCodec.codecNegotiateAttribute(remoteAttribute.getAttributeName(), localAttibuteValue, remoteAttribute.getAttributeValue());
                    if ((attributeValueResult != null) && (!"".equals(attributeValueResult))) {
                        AttributeField af = new AttributeField(remoteAttribute.getAttributeName(), attributeValueResult);
                        MediaDescriptor md = newSdp.getMediaDescriptor(localMedia.getMedia().getMedia());
                        md.addAttribute(af);
                    }
                } else {
                    log.warn("Codec not found!");
                }
            }
        }
    } catch (Exception exception) {
        log.error("Failure creating initial SDP: " + exception.toString());
    }
}

Example 3 with Codec

use of org.red5.app.sip.codecs.Codec in project bigbluebutton by bigbluebutton.

the class SdpUtils method getNegotiatedAudioCodec.

/**
     * @return Returns the audio codec to be used on current session.
     */
public static Codec getNegotiatedAudioCodec(SessionDescriptor negotiatedSDP) {
    int payloadId;
    String rtpmap;
    Codec sipCodec = null;
    MediaDescriptor md = negotiatedSDP.getMediaDescriptor(Codec.MEDIA_TYPE_AUDIO);
    rtpmap = md.getAttribute(Codec.ATTRIBUTE_RTPMAP).getAttributeValue();
    if (!rtpmap.isEmpty()) {
        payloadId = Integer.parseInt(rtpmap.substring(0, rtpmap.indexOf(" ")));
        sipCodec = CodecFactory.getInstance().getSIPAudioCodec(payloadId);
        if (sipCodec == null) {
            log.error("Negotiated codec {} not found", payloadId);
        } else {
            log.info("Found codec: payloadType={}, payloadName={}.", sipCodec.getCodecId(), sipCodec.getCodecName());
        }
    }
    return sipCodec;
}

Example 4 with Codec

use of org.red5.app.sip.codecs.Codec in project bigbluebutton by bigbluebutton.

the class SdpUtils method createInitialSdp.

/**
     * 
     * @param userName
     * @param viaAddress
     * 
     * @return Return the initial local SDP.
     */
public static SessionDescriptor createInitialSdp(String userName, String viaAddress, int audioPort, int videoPort, String audioCodecsPrecedence) {
    SessionDescriptor initialDescriptor = null;
    try {
        log.debug("userName = [" + userName + "], viaAddress = [" + viaAddress + "], audioPort = [" + audioPort + "], videoPort = [" + videoPort + "], audioCodecsPrecedence = [" + audioCodecsPrecedence + "].");
        int audioCodecsNumber = CodecFactory.getInstance().getAvailableAudioCodecsCount();
        int videoCodecsNumber = CodecFactory.getInstance().getAvailableVideoCodecsCount();
        if ((audioCodecsNumber == 0) && (videoCodecsNumber == 0)) {
            log.debug("audioCodecsNumber = [" + audioCodecsNumber + "], videoCodecsNumber = [" + videoCodecsNumber + "].");
            return null;
        }
        //Bug Session descriptor cannot have spaces.. Username is not forced to be compliant with SIP Spec
        /* RFC 2327 - page 8 of April 1998 Version,
                Origin

                   o=<username> <session id> <version> <network type> <address type>
                   <address>

                   The "o=" field gives the originator of the session (their username
                   and the address of the user's host) plus a session id and session
                   version number.

                   <username> is the user's login on the originating host, or it is "-"
                   if the originating host does not support the concept of user ids.
                   <username> must not contain spaces.  <session id> is a numeric string
                   such that the tuple of <username>, <session id>, <network type>,
                   <address type> and <address> form a globally unique identifier for
                   the session.
             */
        String owner = userName.replaceAll(" ", "_");
        initialDescriptor = new SessionDescriptor(owner, viaAddress);
        if (initialDescriptor == null) {
            log.error("Error instantiating the initialDescriptor!");
            return null;
        }
        if (audioCodecsNumber > 0) {
            Codec[] audioCodecs;
            Vector<AttributeField> audioAttributes = new Vector<AttributeField>();
            if (audioCodecsPrecedence.isEmpty()) {
                audioCodecs = CodecFactory.getInstance().getAvailableAudioCodecs();
            } else {
                audioCodecs = CodecFactory.getInstance().getAvailableAudioCodecsWithPrecedence(audioCodecsPrecedence);
            }
            for (int audioIndex = 0; audioIndex < audioCodecsNumber; audioIndex++) {
                String payloadId = String.valueOf(audioCodecs[audioIndex].getCodecId());
                String rtpmapParamValue = payloadId;
                rtpmapParamValue += " " + audioCodecs[audioIndex].getCodecName();
                rtpmapParamValue += "/" + audioCodecs[audioIndex].getSampleRate() + "/1";
                log.debug("Adding rtpmap for payload [" + payloadId + "] with value = [" + rtpmapParamValue + "].");
                audioAttributes.add(new AttributeField(Codec.ATTRIBUTE_RTPMAP, rtpmapParamValue));
                String[] codecMediaAttributes = audioCodecs[audioIndex].getCodecMediaAttributes();
                if (codecMediaAttributes != null) {
                    log.debug("Adding " + codecMediaAttributes.length + " audio codec media attributes.");
                    for (int attribIndex = 0; attribIndex < codecMediaAttributes.length; attribIndex++) {
                        log.debug("Adding audio media attribute [" + codecMediaAttributes[attribIndex] + "].");
                        AttributeField newAttribute = parseAttributeField(codecMediaAttributes[attribIndex]);
                        if (newAttribute != null) {
                            audioAttributes.add(newAttribute);
                        }
                    }
                } else {
                    log.warn("Audio codec has no especific media attributes.");
                }
            }
            // Calculate the format list to be used on MediaDescriptor creation.
            String formatList = getFormatList(audioAttributes);
            for (Enumeration attributesEnum = audioAttributes.elements(); attributesEnum.hasMoreElements(); ) {
                AttributeField audioAttribute = (AttributeField) attributesEnum.nextElement();
                if (initialDescriptor.getMediaDescriptor(Codec.MEDIA_TYPE_AUDIO) == null) {
                    log.debug("Creating audio media descriptor.");
                    MediaField mf = new MediaField(Codec.MEDIA_TYPE_AUDIO, audioPort, 0, "RTP/AVP", formatList);
                    initialDescriptor.addMedia(mf, audioAttribute);
                } else {
                    log.debug("Just adding attribute.");
                    initialDescriptor.getMediaDescriptor(Codec.MEDIA_TYPE_AUDIO).addAttribute(audioAttribute);
                }
            }
            String[] commonAudioMediaAttributes = CodecFactory.getInstance().getCommonAudioMediaAttributes();
            if (commonAudioMediaAttributes != null) {
                log.debug("Adding " + commonAudioMediaAttributes.length + " common audio media attributes.");
                for (int attribIndex = 0; attribIndex < commonAudioMediaAttributes.length; attribIndex++) {
                    log.debug("Adding common audio media attribute [" + commonAudioMediaAttributes[attribIndex] + "].");
                    AttributeField newAttribute = parseAttributeField(commonAudioMediaAttributes[attribIndex]);
                    if (newAttribute != null) {
                        initialDescriptor.getMediaDescriptor(Codec.MEDIA_TYPE_AUDIO).addAttribute(newAttribute);
                    }
                }
            } else {
                log.debug("No common audio media attributes.");
            }
        }
        if (videoCodecsNumber > 0) {
            Codec[] videoCodecs = CodecFactory.getInstance().getAvailableVideoCodecs();
            Vector<AttributeField> videoAttributes = new Vector<AttributeField>();
            for (int videoIndex = 0; videoIndex < audioCodecsNumber; videoIndex++) {
                String payloadId = String.valueOf(videoCodecs[videoIndex].getCodecId());
                String rtpmapParamValue = payloadId;
                rtpmapParamValue += " " + videoCodecs[videoIndex].getCodecName();
                rtpmapParamValue += "/" + videoCodecs[videoIndex].getSampleRate() + "/1";
                log.debug("Adding rtpmap for payload [" + payloadId + "] with value = [" + rtpmapParamValue + "].");
                videoAttributes.add(new AttributeField(Codec.ATTRIBUTE_RTPMAP, rtpmapParamValue));
                String[] codecMediaAttributes = videoCodecs[videoIndex].getCodecMediaAttributes();
                if (codecMediaAttributes != null) {
                    log.debug("Adding " + codecMediaAttributes.length + " video codec media attributes.");
                    for (int attribIndex = 0; attribIndex < codecMediaAttributes.length; attribIndex++) {
                        log.debug("Adding video media attribute [" + codecMediaAttributes[attribIndex] + "].");
                        AttributeField newAttribute = parseAttributeField(codecMediaAttributes[attribIndex]);
                        if (newAttribute != null) {
                            videoAttributes.add(newAttribute);
                        }
                    }
                } else {
                    log.info("Video codec has no especific media attributes.");
                }
            }
            // Calculate the format list to be used on MediaDescriptor creation.
            String formatList = getFormatList(videoAttributes);
            for (Enumeration attributesEnum = videoAttributes.elements(); attributesEnum.hasMoreElements(); ) {
                AttributeField videoAttribute = (AttributeField) attributesEnum.nextElement();
                if (initialDescriptor.getMediaDescriptor(Codec.MEDIA_TYPE_VIDEO) == null) {
                    MediaField mf = new MediaField(Codec.MEDIA_TYPE_VIDEO, audioPort, 0, "RTP/AVP", formatList);
                    initialDescriptor.addMedia(mf, videoAttribute);
                } else {
                    initialDescriptor.getMediaDescriptor(Codec.MEDIA_TYPE_VIDEO).addAttribute(videoAttribute);
                }
            }
            String[] commonVideoMediaAttributes = CodecFactory.getInstance().getCommonAudioMediaAttributes();
            if (commonVideoMediaAttributes != null) {
                log.debug("Adding " + commonVideoMediaAttributes.length + " common video media attributes.");
                for (int attribIndex = 0; attribIndex < commonVideoMediaAttributes.length; attribIndex++) {
                    log.debug("Adding common video media attribute [" + commonVideoMediaAttributes[attribIndex] + "].");
                    AttributeField newAttribute = parseAttributeField(commonVideoMediaAttributes[attribIndex]);
                    if (newAttribute != null) {
                        initialDescriptor.getMediaDescriptor(Codec.MEDIA_TYPE_VIDEO).addAttribute(newAttribute);
                    }
                }
            } else {
                log.info("No common video media attributes.");
            }
        }
    } catch (Exception exception) {
        log.error("Failure creating initial SDP: " + exception.toString());
    }
    log.debug("Created initial SDP");
    return initialDescriptor;
}

Example 5 with Codec

use of org.red5.app.sip.codecs.Codec in project bigbluebutton by bigbluebutton.

the class FlashToSipAudioStream method start.

public void start(IBroadcastStream broadcastStream, IScope scope) throws StreamException {
    if (log.isDebugEnabled())
        log.debug("startTranscodingStream({},{})", broadcastStream.getPublishedName(), scope.getName());
    mInputListener = new IStreamListener() {

        public void packetReceived(IBroadcastStream broadcastStream, IStreamPacket packet) {
            IoBuffer buf = packet.getData();
            if (buf != null)
                buf.rewind();
            if (buf == null || buf.remaining() == 0) {
                log.debug("skipping empty packet with no data");
                return;
            }
            if (packet instanceof AudioData) {
                byte[] data = SerializeUtils.ByteBufferToByteArray(buf);
                // Remove the first byte as it is the codec id.
                transcoder.handlePacket(data, 1, data.length - 1);
            }
        }
    };
    broadcastStream.addStreamListener(mInputListener);
    rtpSender = new RtpStreamSender(srcSocket, connInfo);
    rtpSender.connect();
    transcoder.start();
}