33 lines
939 B
C++
33 lines
939 B
C++
#include "rtp-ext.h"
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#include "rtp-util.h"
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// https://webrtc.googlesource.com/src/+/refs/heads/main/docs/native-code/rtp-hdrext/video-frame-tracking-id/
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/*
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Data layout overview
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1-byte header + 2 bytes of data:
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0 1 2
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0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| ID | L=1 | video-frame-tracking-id |
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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Notes: The extension shoud be present only in the first packet of each frame. If attached to other packets it can be ignored.
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*/
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int rtp_ext_video_frame_tracking_id_parse(const uint8_t* data, int bytes, uint16_t *id)
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{
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if (bytes < 2)
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return -1;
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*id = rtp_read_uint16(data);
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return 0;
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}
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int rtp_ext_video_frame_tracking_id_write(uint8_t* data, int bytes, uint16_t id)
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{
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if (bytes < 1)
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return -1;
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rtp_write_uint16(data, id);
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return 2;
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}
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