FreeCalypso > hg > themwi-system-sw

annotate libsip/sdp.h @ 199:e6c7ced3c031

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mgw: accept zero-length RTP payload as BFI Mainline OsmoBTS now has an option (rtp continuous-streaming) that causes it to emit an RTP packet every 20 ms without gaps, sending a BFI marker in the form of zero-length RTP payload when it has nothing else to send. These codec-independent BFI markers don't indicate TAF, but this provision is a good start. Accept this BFI packet format in themwi-mgw.
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 29 Mar 2023 20:23:43 -0800
parents 2423f3aac4ce
children
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2423f3aac4ce libsip: SDP parsing implemented
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1 /*
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2 * This header file defines structures to be used for SDP
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3 * parsing and generation.
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4 */
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5
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6 struct sdp_parse {
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7 struct in_addr ip_addr;
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8 unsigned audio_port;
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9 unsigned codec_mask;
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10 };
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11
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12 struct sdp_gen {
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13 unsigned session_id;
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14 unsigned version;
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15 struct in_addr owner_ip;
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16 struct in_addr conn_ip;
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17 unsigned conn_port;
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18 unsigned codec_mask;
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19 };
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20
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21 #define SDP_CODEC_MASK_PCMU 1
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22 #define SDP_CODEC_MASK_PCMA 2
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23 #define SDP_CODEC_MASK_BOTH 3
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24 #define SDP_CODEC_MASK_PCMA_PREF 4