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examples:play from disk,panic:illegal base64 data at input byte 4092

Open L-Xu-L opened this issue 1 year ago • 2 comments

Your environment.

  • Version: master
  • Browser: Microsoft Edge
  • OS: linux

What did you do?

  • Browser
  1. git clone github.com/pion/webrtc
  2. cd webetc/examples
  3. go run . (port:80)
  4. localhost:80
  5. click play from disk module javascript
  6. Copy browser Session Description to clipboard
  • Server
  1. cd webetc/examples/play-from-disk
  2. go run .
  3. write SDP from browser
  4. panic: illegal base64 data at input byte 4092
  5. Copy browser Session Description to clipboard : {"type":"offer","sdp":"v=0\r\no=- 4150459335370702382 2 IN IP4 127.0.0.1\r\ns=-\r\nt=0 0\r\na=group:BUNDLE 0 1\r\na=extmap-allow-mixed\r\na=msid-semantic: WMS\r\nm=video 39293 UDP/TLS/RTP/SAVPF 96 97 102 103 104 105 106 107 108 109 127 125 39 40 98 99 100 101 112 113 116 117 118\r\nc=IN IP4 116.30.101.242\r\na=rtcp:9 IN IP4 0.0.0.0\r\na=candidate:3121497577 1 udp 2113937151 2aa3e203-6d04-44fa-b3c4-e93118693bf0.local 58599 typ host generation 0 network-cost 999\r\na=candidate:3498878364 1 udp 1677729535 116.30.101.242 39293 typ srflx raddr 0.0.0.0 rport 0 generation 0 network-cost 999\r\na=ice-ufrag:1kSw\r\na=ice-pwd:PFuRoFMQngMcO0qjqQm70iCZ\r\na=ice-options:trickle\r\na=fingerprint:sha-256 B1:A2:F5:28:97:1B:1A:76:27:B2:FC:C2:D1:72:FA:CD:68:2E:BD:AA:1F:84:B5:B0:6C:29:8D:26:18:83:14:F2\r\na=setup:actpass\r\na=mid:0\r\na=extmap:1 urn:ietf:params:rtp-hdrext:toffset\r\na=extmap:2 http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time\r\na=extmap:3 urn:3gpp:video-orientation\r\na=extmap:4 http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-extensions-01\r\na=extmap:5 http://www.webrtc.org/experiments/rtp-hdrext/playout-delay\r\na=extmap:6 http://www.webrtc.org/experiments/rtp-hdrext/video-content-type\r\na=extmap:7 http://www.webrtc.org/experiments/rtp-hdrext/video-timing\r\na=extmap:8 http://www.webrtc.org/experiments/rtp-hdrext/color-space\r\na=extmap:9 urn:ietf:params:rtp-hdrext:sdes:mid\r\na=extmap:10 urn:ietf:params:rtp-hdrext:sdes:rtp-stream-id\r\na=extmap:11 urn:ietf:params:rtp-hdrext:sdes:repaired-rtp-stream-id\r\na=sendrecv\r\na=msid:- c81e76fb-1a2b-4a8e-8efa-512ac32d7586\r\na=rtcp-mux\r\na=rtcp-rsize\r\na=rtpmap:96 VP8/90000\r\na=rtcp-fb:96 goog-remb\r\na=rtcp-fb:96 transport-cc\r\na=rtcp-fb:96 ccm fir\r\na=rtcp-fb:96 nack\r\na=rtcp-fb:96 nack pli\r\na=rtpmap:97 rtx/90000\r\na=fmtp:97 apt=96\r\na=rtpmap:102 H264/90000\r\na=rtcp-fb:102 goog-remb\r\na=rtcp-fb:102 transport-cc\r\na=rtcp-fb:102 ccm fir\r\na=rtcp-fb:102 nack\r\na=rtcp-fb:102 nack pli\r\na=fmtp:102 level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=42001f\r\na=rtpmap:103 rtx/90000\r\na=fmtp:103 apt=102\r\na=rtpmap:104 H264/90000\r\na=rtcp-fb:104 goog-remb\r\na=rtcp-fb:104 transport-cc\r\na=rtcp-fb:104 ccm fir\r\na=rtcp-fb:104 nack\r\na=rtcp-fb:104 nack pli\r\na=fmtp:104 level-asymmetry-allowed=1;packetization-mode=0;profile-level-id=42001f\r\na=rtpmap:105 rtx/90000\r\na=fmtp:105 apt=104\r\na=rtpmap:106 H264/90000\r\na=rtcp-fb:106 goog-remb\r\na=rtcp-fb:106 transport-cc\r\na=rtcp-fb:106 ccm fir\r\na=rtcp-fb:106 nack\r\na=rtcp-fb:106 nack pli\r\na=fmtp:106 level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=42e01f\r\na=rtpmap:107 rtx/90000\r\na=fmtp:107 apt=106\r\na=rtpmap:108 H264/90000\r\na=rtcp-fb:108 goog-remb\r\na=rtcp-fb:108 transport-cc\r\na=rtcp-fb:108 ccm fir\r\na=rtcp-fb:108 nack\r\na=rtcp-fb:108 nack pli\r\na=fmtp:108 level-asymmetry-allowed=1;packetization-mode=0;profile-level-id=42e01f\r\na=rtpmap:109 rtx/90000\r\na=fmtp:109 apt=108\r\na=rtpmap:127 H264/90000\r\na=rtcp-fb:127 goog-remb\r\na=rtcp-fb:127 transport-cc\r\na=rtcp-fb:127 ccm fir\r\na=rtcp-fb:127 nack\r\na=rtcp-fb:127 nack pli\r\na=fmtp:127 level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=4d001f\r\na=rtpmap:125 rtx/90000\r\na=fmtp:125 apt=127\r\na=rtpmap:39 H264/90000\r\na=rtcp-fb:39 goog-remb\r\na=rtcp-fb:39 transport-cc\r\na=rtcp-fb:39 ccm fir\r\na=rtcp-fb:39 nack\r\na=rtcp-fb:39 nack pli\r\na=fmtp:39 level-asymmetry-allowed=1;packetization-mode=0;profile-level-id=4d001f\r\na=rtpmap:40 rtx/90000\r\na=fmtp:40 apt=39\r\na=rtpmap:98 VP9/90000\r\na=rtcp-fb:98 goog-remb\r\na=rtcp-fb:98 transport-cc\r\na=rtcp-fb:98 ccm fir\r\na=rtcp-fb:98 nack\r\na=rtcp-fb:98 nack pli\r\na=fmtp:98 profile-id=0\r\na=rtpmap:99 rtx/90000\r\na=fmtp:99 apt=98\r\na=rtpmap:100 VP9/90000\r\na=rtcp-fb:100 goog-remb\r\na=rtcp-fb:100 transport-cc\r\na=rtcp-fb:100 ccm fir\r\na=rtcp-fb:100 nack\r\na=rtcp-fb:100 nack pli\r\na=fmtp:100 profile-id=2\r\na=rtpmap:101 rtx/90000\r\na=fmtp:101 apt=100\r\na=rtpmap:112 H264/90000\r\na=rtcp-fb:112 goog-remb\r\na=rtcp-fb:112 transport-cc\r\na=rtcp-fb:112 ccm fir\r\na=rtcp-fb:112 nack\r\na=rtcp-fb:112 nack pli\r\na=fmtp:112 level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=64001f\r\na=rtpmap:113 rtx/90000\r\na=fmtp:113 apt=112\r\na=rtpmap:116 red/90000\r\na=rtpmap:117 rtx/90000\r\na=fmtp:117 apt=116\r\na=rtpmap:118 ulpfec/90000\r\na=ssrc-group:FID 1750969995 734328697\r\na=ssrc:1750969995 cname:lim25pnMT03AF/c6\r\na=ssrc:1750969995 msid:- c81e76fb-1a2b-4a8e-8efa-512ac32d7586\r\na=ssrc:734328697 cname:lim25pnMT03AF/c6\r\na=ssrc:734328697 msid:- c81e76fb-1a2b-4a8e-8efa-512ac32d7586\r\nm=audio 39446 UDP/TLS/RTP/SAVPF 111 63 9 0 8 13 110 126\r\nc=IN IP4 116.30.101.242\r\na=rtcp:9 IN IP4 0.0.0.0\r\na=candidate:3121497577 1 udp 2113937151 2aa3e203-6d04-44fa-b3c4-e93118693bf0.local 58601 typ host generation 0 network-cost 999\r\na=candidate:3498878364 1 udp 1677729535 116.30.101.242 39446 typ srflx raddr 0.0.0.0 rport 0 generation 0 network-cost 999\r\na=ice-ufrag:1kSw\r\na=ice-pwd:PFuRoFMQngMcO0qjqQm70iCZ\r\na=ice-options:trickle\r\na=fingerprint:sha-256 B1:A2:F5:28:97:1B:1A:76:27:B2:FC:C2:D1:72:FA:CD:68:2E:BD:AA:1F:84:B5:B0:6C:29:8D:26:18:83:14:F2\r\na=setup:actpass\r\na=mid:1\r\na=extmap:14 urn:ietf:params:rtp-hdrext:ssrc-audio-level\r\na=extmap:2 http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time\r\na=extmap:4 http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-extensions-01\r\na=extmap:9 urn:ietf:params:rtp-hdrext:sdes:mid\r\na=sendrecv\r\na=msid:- fab3cd38-d48c-4619-a391-5dc7a922d1f9\r\na=rtcp-mux\r\na=rtpmap:111 opus/48000/2\r\na=rtcp-fb:111 transport-cc\r\na=fmtp:111 minptime=10;useinbandfec=1\r\na=rtpmap:63 red/48000/2\r\na=fmtp:63 111/111\r\na=rtpmap:9 G722/8000\r\na=rtpmap:0 PCMU/8000\r\na=rtpmap:8 PCMA/8000\r\na=rtpmap:13 CN/8000\r\na=rtpmap:110 telephone-event/48000\r\na=rtpmap:126 telephone-event/8000\r\na=ssrc:2296387834 cname:lim25pnMT03AF/c6\r\na=ssrc:2296387834 msid:- fab3cd38-d48c-4619-a391-5dc7a922d1f9\r\n"}

企业微信截图_16999290954734

Thanks!

L-Xu-L avatar Nov 14 '23 02:11 L-Xu-L

module:Data Channels I got succed,Browser Gen SDP :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

I don't konw why the SDP sometimes this,sometimes that

L-Xu-L avatar Nov 14 '23 02:11 L-Xu-L

modify signal.go Encode/Decode function. base64.StdEncoding to base64.RawURLEncoding Encode.. return base64.RawURLEncoding.EncodeToString(b) Decode.. b, err := base64.RawURLEncoding.DecodeString(in) https://github.com/pion/example-webrtc-applications/commit/8637ead1f9854e417ea5a1de83b9b6215eb9906c

heshouyong avatar Nov 17 '23 01:11 heshouyong

The limits stdin length limits cause this for me also. If you have a SDP that is larger then what your OS supports it is best to pipe it in like so the Windows instructions suggest here.

Paste the SessionDescription into a file.
Run play-from-disk < my_file

Thanks for the PR @heshouyong I don't understand why padding characters are causing issues! I will test+review and merge it!

Sean-Der avatar Apr 01 '24 01:04 Sean-Der