github-actions[bot]
5c97379765
date: 2026-08-01T16:05:18 master commit: 3a05c03079d796f533f342489b3f681cfd21f98d
38 lines
1.2 KiB
Python
38 lines
1.2 KiB
Python
import dataclasses
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from libdatachannel import Description
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@dataclasses.dataclass
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class StreamingMediaInfo:
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n_expected_camera_tracks: int
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expected_audio_track: bool
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incoming_audio_track: bool
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incoming_datachannel: bool
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def parse_info_from_offer(sdp: str) -> StreamingMediaInfo:
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"""
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helper function to parse info about outgoing and incoming streams from an offer sdp
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"""
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desc = Description(sdp, Description.Type.Offer)
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n_video = 0
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expected_audio_track = False
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incoming_audio_track = False
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incoming_datachannel = desc.has_application()
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for i in range(desc.media_count()):
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media = desc.media(i)
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if media is None:
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continue
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direction = media.direction()
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if media.type() == "video" and direction in (Description.Direction.RecvOnly, Description.Direction.SendRecv):
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n_video += 1
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elif media.type() == "audio":
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if direction in (Description.Direction.RecvOnly, Description.Direction.SendRecv):
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expected_audio_track = True
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if direction in (Description.Direction.SendOnly, Description.Direction.SendRecv):
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incoming_audio_track = True
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return StreamingMediaInfo(n_video, expected_audio_track, incoming_audio_track, incoming_datachannel)
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