mirror of https://bitbucket.org/ausocean/av.git
55 lines
1.4 KiB
Go
55 lines
1.4 KiB
Go
/*
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DESCRIPTIONS
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helpers.go provides general codec related helper functions.
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AUTHORS
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Saxon A. Nelson-Milton <saxon@ausocean.org>
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LICENSE
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Copyright (C) 2019 the Australian Ocean Lab (AusOcean).
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It is free software: you can redistribute it and/or modify them
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under the terms of the GNU General Public License as published by the
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Free Software Foundation, either version 3 of the License, or (at your
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option) any later version.
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It is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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in gpl.txt. If not, see http://www.gnu.org/licenses.
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*/
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package pes
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import "errors"
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// Stream types AKA stream IDs as per ITU-T Rec. H.222.0 / ISO/IEC 13818-1 [1], tables 2-22 and 2-34.
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const (
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H264SID = 27
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H265SID = 36
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MJPEGSID = 28
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PCMSID = 191
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ADPCMSID = 192
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)
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// SIDToMIMEType will return the corresponding MIME type for passed stream ID.
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func SIDToMIMEType(id int) (string, error) {
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switch id {
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case H264SID:
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return "video/h264", nil
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case H265SID:
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return "video/h265", nil
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case MJPEGSID:
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return "video/x-motion-jpeg", nil
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case PCMSID:
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return "audio/pcm", nil
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case ADPCMSID:
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return "audio/adpcm", nil
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default:
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return "", errors.New("unknown stream ID")
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}
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}
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