Issue with general HLS adaptive bitrate playlist support/Custom source provider #2833

sqz269 · 2025-10-30T01:14:35Z

sqz269
Oct 30, 2025

Hey, I am running into a bit of trouble when I am trying to add my own custom SourcedTrack audio source. I have a backend server that serves HLS playlists given some track id (defined by my own data source/metadata plugin)

For example:
A valid HLS url would be https://staging-api.marisad.me/api/asset/track/b7963120-4ab6-4c04-b584-bb76396bb552/hls

I tried playing this with a local mpv instance and media_kit test repo and it works, which shows my backend is serving a valid hls playlist.

However, when my SourcedTrack (You can find it here), it results in [MediaKitError] Failed to recognize file format.
Same thing happens even if I turn off proxying through localhost (By updating SpotubeMedia).

Digging a bit deeper, from libmpv's output

[warn] playlist: Reading plaintext playlist.
[info] cplayer: Playing: http://localhost:11876/stream/139dc3c6-31fe-4285-92a0-3ddce6cbedbc?id=139dc3c6-31fe-4285-92a0-3ddce6cbedbc&title=Aura&artists=&album=Aura%20Sphere&durationMs=227000&isrc=&explicit=false
[error] playlist: Failed to create file cache.
[info] cplayer: 
[info] cplayer: Playing: https://staging-api.marisad.me/api/asset/track/139dc3c6-31fe-4285-92a0-3ddce6cbedbc/hls/128k/playlist.m3u8
[error] playlist: Failed to create file cache.
[info] cplayer: 
[info] cplayer: Playing: https://staging-api.marisad.me/api/asset/track/139dc3c6-31fe-4285-92a0-3ddce6cbedbc/hls/128k/segment_000.m4s
[warn] ffmpeg/demuxer: mov,mp4,m4a,3gp,3g2,mj2: could not find corresponding track id 1
[warn] ffmpeg/demuxer: mov,mp4,m4a,3gp,3g2,mj2: could not find corresponding trex (id 1)
[warn] ffmpeg/demuxer: mov,mp4,m4a,3gp,3g2,mj2: could not find corresponding track id 0
[error] ffmpeg/demuxer: mov,mp4,m4a,3gp,3g2,mj2: trun track id unknown, no tfhd was found
[error] ffmpeg/demuxer: mov,mp4,m4a,3gp,3g2,mj2: error reading header
[error] lavf: avformat_open_input() failed
[warn] ffmpeg/demuxer: mov,mp4,m4a,3gp,3g2,mj2: could not find corresponding track id 1
[warn] ffmpeg/demuxer: mov,mp4,m4a,3gp,3g2,mj2: could not find corresponding trex (id 1)
[warn] ffmpeg/demuxer: mov,mp4,m4a,3gp,3g2,mj2: could not find corresponding track id 0
[error] ffmpeg/demuxer: mov,mp4,m4a,3gp,3g2,mj2: trun track id unknown, no tfhd was found
[error] ffmpeg/demuxer: mov,mp4,m4a,3gp,3g2,mj2: error reading header
[error] lavf: avformat_open_input() failed
[error] cplayer: Failed to recognize file format.

From the output, I am guessing for some reason the libmpv is treating my HLS playlists as a plaintext playlist instead of a HLS playlist. Any idea on why this is the case? Not exactly sure if this is a bug or just my structure for source track is incorrect.

Answered by sqz269

Oct 30, 2025

I think I figured out the issue, Spotube only depends on media_kit audio, which supports a reduced sets of demuxers. So when it tries open the file one of the log output [fatal] lavf: Unknown lavf format hls, indicates the audio version don't have a HLS demuxer (For reference the successful attempts outputted [v] lavf: Found 'hls' at score=100 size=805.. Currently I am fixing this by updating the pubspec.yaml to include video components of the media kit.

  media_kit: ^1.2.1 # Primary package.
  media_kit_video: ^1.3.1 # For video rendering.
  media_kit_libs_audio: ^1.0.7 # Native audio dependencies.
  media_kit_libs_video: ^1.0.7 # Native video dependencies.

View full answer

sqz269 · 2025-10-30T02:21:27Z

sqz269
Oct 30, 2025
Author

Here is a more verbose output:

[error] media_kit: error: property not found _setProperty(osc, 1)
[v] cplayer: Set property: network-timeout="120" -> 1
[v] cplayer: Set property: volume=100.000000 -> 1
The Flutter DevTools debugger and profiler on Windows is available at: http://127.0.0.1:9105?uri=http://127.0.0.1:45904/SN_uZRJCpN0=/
[v] cplayer: Set property: loop-file="no" -> 1
[v] cplayer: Set property: loop-playlist="no" -> 1
[debug] cplayer: Run command: stop, flags=64, args=[flags=""]
[debug] cplayer: Run command: playlist-clear, flags=64, args=[]
[debug] cplayer: Run command: playlist-play-index, flags=64, args=[index="none"]
[v] cplayer: Set property: pause=true -> 1
[discovery] [26091] Bonsoir discovery started : _spotube._tcp.
[v] cplayer: Set property: af="" -> 1
[debug] cplayer: Run command: loadlist, flags=64, args=[url="==REDACTED (tmp dir) ==5fa264ed-d71f-40ad-8b0f-135dd9eed4bb", flags="append"]
[v] playlist_parser: Parsing playlist file ==REDACTED (tmp dir) ==5fa264ed-d71f-40ad-8b0f-135dd9eed4bb...
[v] file: Opening ==REDACTED (tmp dir) ==5fa264ed-d71f-40ad-8b0f-135dd9eed4bb
[debug] file: resize stream to 131072 bytes, drop 0 bytes
[debug] file: Stream opened successfully.
[v] demux: Trying demuxers for level=request.
[debug] demux: Trying demuxer: playlist (force-level: request)
[trace] file: seek request from 0 to 0
[warn] playlist: Reading plaintext playlist.
[trace] file: seek request from 0 to 229
[trace] file: seek request from 229 to 417
[trace] file: seek request from 417 to 646
[trace] file: seek request from 646 to 833
[trace] file: seek request from 833 to 1109
[trace] file: seek request from 1109 to 1320
[trace] file: seek request from 1320 to 1567
[trace] file: seek request from 1567 to 1789
[trace] file: seek request from 1789 to 2001
[v] playlist: demuxer read all data; closing stream
[v] demux: Detected file format: txt (Playlist file)
[v] playlist_parser: Playlist successfully parsed
[debug] global: state path: 'watch_later' -> '-'
[debug] global: state path: 'watch_later' -> '-'
[debug] global: state path: 'watch_later' -> '-'
[debug] global: state path: 'watch_later' -> '-'
[debug] global: state path: 'watch_later' -> '-'
[debug] global: state path: 'watch_later' -> '-'
[debug] global: state path: 'watch_later' -> '-'
[debug] global: state path: 'watch_later' -> '-'
[debug] global: state path: 'watch_later' -> '-'
[v] cplayer: Set property: playlist-pos=0 -> 1
[debug] global: state path: 'watch_later' -> '-'
[info] cplayer: Playing: http://localhost:15538/stream/0c40ef11-5b8f-4c50-ba14-4ef05eec856d?id=0c40ef11-5b8f-4c50-ba14-4ef05eec856d&title=%E5%A4%A2%E3%81%A7%E8%B8%8A%E3%82%8B%5BRe-Arrange%5D&artists=&album=Epilogue&durationMs=183000&isrc=&explicit=false
[v] cplayer: Running hook: main/on_load
[v] ffmpeg: Opening http://localhost:15538/stream/0c40ef11-5b8f-4c50-ba14-4ef05eec856d?id=0c40ef11-5b8f-4c50-ba14-4ef05eec856d&title=%E5%A4%A2%E3%81%A7%E8%B8%8A%E3%82%8B%5BRe-Arrange%5D&artists=&album=Epilogue&durationMs=183000&isrc=&explicit=false
[trace] ffmpeg: http: Setting default whitelist 'http,https,tls,rtp,tcp,udp,crypto,httpproxy,data'
[trace] ffmpeg: tcp: Original list of addresses:
[trace] ffmpeg: tcp: Address ::1 port 15538
[trace] ffmpeg: tcp: Address 127.0.0.1 port 15538
[trace] ffmpeg: tcp: Interleaved list of addresses:
[trace] ffmpeg: tcp: Address ::1 port 15538
[trace] ffmpeg: tcp: Address 127.0.0.1 port 15538
[debug] ffmpeg: tcp: Starting connection attempt to ::1 port 15538
[debug] ffmpeg: tcp: Starting connection attempt to 127.0.0.1 port 15538
[debug] ffmpeg: tcp: Successfully connected to 127.0.0.1 port 15538
[trace] ffmpeg: http: request: GET /stream/0c40ef11-5b8f-4c50-ba14-4ef05eec856d?id=0c40ef11-5b8f-4c50-ba14-4ef05eec856d&title=%E5%A4%A2%E3%81%A7%E8%B8%8A%E3%82%8B%5BRe-Arrange%5D&artists=&album=Epilogue&durationMs=183000&isrc=&explicit=false HTTP/1.1
[trace] ffmpeg: User-Agent: libmpv
[trace] ffmpeg: Accept: */*
[trace] ffmpeg: Range: bytes=0-
[trace] ffmpeg: Connection: close
[trace] ffmpeg: Host: localhost:15538
[trace] ffmpeg: Icy-MetaData: 1
[trace] ffmpeg:
[trace] ffmpeg:
[trace] ffmpeg: http: header='HTTP/1.1 301 Moved Permanently'
[trace] ffmpeg: http: http_code=301
[trace] ffmpeg: http: header='x-powered-by: Dart with package:shelf'
[trace] ffmpeg: http: header='connection: close'
[trace] ffmpeg: http: header='location: https://staging-api.marisad.me/api/asset/track/0c40ef11-5b8f-4c50-ba14-4ef05eec856d/hls'
[trace] ffmpeg: http: header='date: Thu, 30 Oct 2025 01:59:26 GMT'
[trace] ffmpeg: http: header='content-length: 0'
[trace] ffmpeg: http: header='x-frame-options: SAMEORIGIN'
[trace] ffmpeg: http: header='content-type: application/vnd.apple.mpegurl'
[trace] ffmpeg: http: header='x-xss-protection: 1; mode=block'
[trace] ffmpeg: http: header='x-content-type-options: nosniff'
[trace] ffmpeg: http: header=''
[trace] ffmpeg: tcp: Original list of addresses:
[trace] ffmpeg: tcp: Address 172.67.222.175 port 443
[trace] ffmpeg: tcp: Address 104.21.25.45 port 443
[trace] ffmpeg: tcp: Interleaved list of addresses:
[trace] ffmpeg: tcp: Address 172.67.222.175 port 443
[trace] ffmpeg: tcp: Address 104.21.25.45 port 443
[debug] ffmpeg: tcp: Starting connection attempt to 172.67.222.175 port 443
[debug] ffmpeg: tcp: Successfully connected to 172.67.222.175 port 443
[trace] ffmpeg: http: request: GET /api/asset/track/0c40ef11-5b8f-4c50-ba14-4ef05eec856d/hls HTTP/1.1
[trace] ffmpeg: User-Agent: libmpv
[trace] ffmpeg: Accept: */*
[trace] ffmpeg: Range: bytes=0-
[trace] ffmpeg: Connection: close
[trace] ffmpeg: Host: staging-api.marisad.me
[trace] ffmpeg: Icy-MetaData: 1
[trace] ffmpeg:
[trace] ffmpeg:
[trace] ffmpeg: http: header='HTTP/1.1 206 Partial Content'
[trace] ffmpeg: http: http_code=206
[trace] ffmpeg: http: header='Date: Thu, 30 Oct 2025 01:59:26 GMT'
[trace] ffmpeg: http: header='Content-Type: application/vnd.apple.mpegurl'
[trace] ffmpeg: http: header='Content-Length: 805'
[trace] ffmpeg: http: header='Connection: close'
[trace] ffmpeg: http: header='last-modified: Thu, 30 Oct 2025 01:49:02 GMT'
[trace] ffmpeg: http: header='Nel: {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}'
[trace] ffmpeg: http: header='Age: 623'
[trace] ffmpeg: http: header='content-range: bytes 0-804/805'
[trace] ffmpeg: http: header='Cache-Control: max-age=7200'
[trace] ffmpeg: http: header='cf-cache-status: HIT'
[trace] ffmpeg: http: header='Strict-Transport-Security: max-age=2592000; includeSubDomains; preload'
[trace] ffmpeg: http: header='Speculation-Rules: "/cdn-cgi/speculation"'
[trace] ffmpeg: http: header='Vary: accept-encoding'
[trace] ffmpeg: http: header='Report-To: {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=EwZvWEgxsZ6rO%2B8QRCtuvDVNWKw3zNSbn7W2w%2FlgRhklmfI0P6Wd78ABV%2F572HIZv1CI9EM400XK8U3uMieNgr8eejW4fuuaIu%2BJicBX1uyt9HaK150%3D"}]}'
[trace] ffmpeg: http: header='Server: cloudflare'
[trace] ffmpeg: http: header='CF-RAY: 996750348e7b59bc-IAD'
[trace] ffmpeg: http: header='alt-svc: h3=":443"; ma=86400'
[trace] ffmpeg: http: header=''
[debug] ffmpeg: resize stream to 131072 bytes, drop 0 bytes
[v] ffmpeg: Mime-type: 'application/vnd.apple.mpegurl'
[debug] ffmpeg: Stream opened successfully.
[v] demux: Trying demuxers for level=normal.
[debug] demux: Trying demuxer: disc (force-level: normal)
[trace] ffmpeg: seek request from 0 to 0
[debug] demux: Trying demuxer: edl (force-level: normal)
[trace] ffmpeg: seek request from 0 to 0
[debug] demux: Trying demuxer: cue (force-level: normal)
[trace] ffmpeg: seek request from 0 to 0
[debug] demux: Trying demuxer: rawaudio (force-level: normal)
[trace] ffmpeg: seek request from 0 to 0
[debug] demux: Trying demuxer: rawvideo (force-level: normal)
[trace] ffmpeg: seek request from 0 to 0
[debug] demux: Trying demuxer: mkv (force-level: normal)
[trace] ffmpeg: seek request from 0 to 0
[debug] demux: Trying demuxer: libarchive (force-level: normal)
[trace] ffmpeg: seek request from 3 to 0
[debug] demux: Trying demuxer: lavf (force-level: normal)
[trace] ffmpeg: seek request from 0 to 0
[v] lavf: No format found, try lowering probescore or forcing the format.
[debug] demux: Trying demuxer: mf (force-level: normal)
[trace] ffmpeg: seek request from 0 to 0
[debug] demux: Trying demuxer: playlist (force-level: normal)
[trace] ffmpeg: seek request from 0 to 0
[trace] ffmpeg: seek request from 0 to 8
[trace] ffmpeg: seek request from 8 to 25
[trace] ffmpeg: seek request from 25 to 106
[trace] ffmpeg: seek request from 106 to 174
[trace] ffmpeg: seek request from 174 to 281
[trace] ffmpeg: seek request from 281 to 349
[trace] ffmpeg: seek request from 349 to 456
[trace] ffmpeg: seek request from 456 to 524
[trace] ffmpeg: seek request from 524 to 631
[trace] ffmpeg: seek request from 631 to 699
[trace] ffmpeg: seek request from 699 to 805
[v] playlist: demuxer read all data; closing stream
[debug] ffmpeg: AVIOContext: Statistics: 805 bytes read, 0 seeks
[v] demux: Detected file format: hls (Playlist file)
[debug] global: cache path: '' -> '-'
[error] playlist: Failed to create file cache.
[v] cplayer: Opening done: http://localhost:15538/stream/0c40ef11-5b8f-4c50-ba14-4ef05eec856d?id=0c40ef11-5b8f-4c50-ba14-4ef05eec856d&title=%E5%A4%A2%E3%81%A7%E8%B8%8A%E3%82%8B%5BRe-Arrange%5D&artists=&album=Epilogue&durationMs=183000&isrc=&explicit=false
[debug] global: state path: 'watch_later' -> '-'
[debug] global: state path: 'watch_later' -> '-'
[debug] global: state path: 'watch_later' -> '-'
[debug] global: state path: 'watch_later' -> '-'
[v] cplayer: Running hook: main/on_unload
[v] cplayer: Set property: http-header-fields=null -> -2
[v] cplayer: Set property: start="none" -> 1
[v] cplayer: Set property: end="none" -> 1
[v] cplayer: finished playback, success (reason 5)
[info] cplayer:
[debug] global: state path: 'watch_later' -> '-'
[info] cplayer: Playing: https://staging-api.marisad.me/api/asset/track/0c40ef11-5b8f-4c50-ba14-4ef05eec856d/hls/128k/playlist.m3u8
[v] cplayer: Running hook: main/on_load
[v] ffmpeg: Opening https://staging-api.marisad.me/api/asset/track/0c40ef11-5b8f-4c50-ba14-4ef05eec856d/hls/128k/playlist.m3u8
[trace] ffmpeg: https: Setting default whitelist 'http,https,tls,rtp,tcp,udp,crypto,httpproxy'
[trace] ffmpeg: tcp: Original list of addresses:
[trace] ffmpeg: tcp: Address 172.67.222.175 port 443
[trace] ffmpeg: tcp: Address 104.21.25.45 port 443
[trace] ffmpeg: tcp: Interleaved list of addresses:
[trace] ffmpeg: tcp: Address 172.67.222.175 port 443
[trace] ffmpeg: tcp: Address 104.21.25.45 port 443
[debug] ffmpeg: tcp: Starting connection attempt to 172.67.222.175 port 443
[debug] ffmpeg: tcp: Successfully connected to 172.67.222.175 port 443
[trace] ffmpeg: https: request: GET /api/asset/track/0c40ef11-5b8f-4c50-ba14-4ef05eec856d/hls/128k/playlist.m3u8 HTTP/1.1
[trace] ffmpeg: User-Agent: libmpv
[trace] ffmpeg: Accept: */*
[trace] ffmpeg: Range: bytes=0-
[trace] ffmpeg: Connection: close
[trace] ffmpeg: Host: staging-api.marisad.me
[trace] ffmpeg: Icy-MetaData: 1
[trace] ffmpeg:
[trace] ffmpeg:
[trace] ffmpeg: https: header='HTTP/1.1 206 Partial Content'
[trace] ffmpeg: https: http_code=206
[trace] ffmpeg: https: header='Date: Thu, 30 Oct 2025 01:59:26 GMT'
[trace] ffmpeg: https: header='Content-Type: application/vnd.apple.mpegurl'
[trace] ffmpeg: https: header='Content-Length: 773'
[trace] ffmpeg: https: header='Connection: close'
[trace] ffmpeg: https: header='last-modified: Thu, 30 Oct 2025 01:59:26 GMT'
[trace] ffmpeg: https: header='Nel: {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}'
[trace] ffmpeg: https: header='content-range: bytes 0-772/773'
[trace] ffmpeg: https: header='Cache-Control: max-age=7200'
[trace] ffmpeg: https: header='cf-cache-status: MISS'
[trace] ffmpeg: https: header='Strict-Transport-Security: max-age=2592000; includeSubDomains; preload'
[trace] ffmpeg: https: header='Speculation-Rules: "/cdn-cgi/speculation"'
[trace] ffmpeg: https: header='Vary: accept-encoding'
[trace] ffmpeg: https: header='Report-To: {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=l1eq7Ao76B3D66xzYOy8zKOTUbA3DYQtCdI7QnBGE7rNEgqIAhpdXRyyH4HW0c1pJSd5AyuoEVfBaxFSZJJMNO9JFXEjIC5ETTjiiLcR52dXNkKJG44%3D"}]}'
[trace] ffmpeg: https: header='Server: cloudflare'
[trace] ffmpeg: https: header='CF-RAY: 99675035adc8d739-IAD'
[trace] ffmpeg: https: header='alt-svc: h3=":443"; ma=86400'
[trace] ffmpeg: https: header=''
[debug] ffmpeg: resize stream to 131072 bytes, drop 0 bytes
[v] ffmpeg: Mime-type: 'application/vnd.apple.mpegurl'
[debug] ffmpeg: Stream opened successfully.
[v] demux: Trying demuxers for level=normal.
[debug] demux: Trying demuxer: disc (force-level: normal)
[trace] ffmpeg: seek request from 0 to 0
[debug] demux: Trying demuxer: edl (force-level: normal)
[trace] ffmpeg: seek request from 0 to 0
[debug] demux: Trying demuxer: cue (force-level: normal)
[trace] ffmpeg: seek request from 0 to 0
[debug] demux: Trying demuxer: rawaudio (force-level: normal)
[trace] ffmpeg: seek request from 0 to 0
[debug] demux: Trying demuxer: rawvideo (force-level: normal)
[trace] ffmpeg: seek request from 0 to 0
[debug] demux: Trying demuxer: mkv (force-level: normal)
[trace] ffmpeg: seek request from 0 to 0
[debug] demux: Trying demuxer: libarchive (force-level: normal)
[trace] ffmpeg: seek request from 3 to 0
[debug] demux: Trying demuxer: lavf (force-level: normal)
[trace] ffmpeg: seek request from 0 to 0
[v] lavf: No format found, try lowering probescore or forcing the format.
[debug] demux: Trying demuxer: mf (force-level: normal)
[trace] ffmpeg: seek request from 0 to 0
[debug] demux: Trying demuxer: playlist (force-level: normal)
[trace] ffmpeg: seek request from 0 to 0
[trace] ffmpeg: seek request from 0 to 8
[trace] ffmpeg: seek request from 8 to 25
[trace] ffmpeg: seek request from 25 to 50
[trace] ffmpeg: seek request from 50 to 74
[trace] ffmpeg: seek request from 74 to 100
[trace] ffmpeg: seek request from 100 to 119
[trace] ffmpeg: seek request from 119 to 135
[trace] ffmpeg: seek request from 135 to 154
[trace] ffmpeg: seek request from 154 to 170
[trace] ffmpeg: seek request from 170 to 188
[trace] ffmpeg: seek request from 188 to 204
[trace] ffmpeg: seek request from 204 to 223
[trace] ffmpeg: seek request from 223 to 239
[trace] ffmpeg: seek request from 239 to 258
[trace] ffmpeg: seek request from 258 to 274
[trace] ffmpeg: seek request from 274 to 292
[trace] ffmpeg: seek request from 292 to 308
[trace] ffmpeg: seek request from 308 to 327
[trace] ffmpeg: seek request from 327 to 343
[trace] ffmpeg: seek request from 343 to 362
[trace] ffmpeg: seek request from 362 to 378
[trace] ffmpeg: seek request from 378 to 396
[trace] ffmpeg: seek request from 396 to 412
[trace] ffmpeg: seek request from 412 to 431
[trace] ffmpeg: seek request from 431 to 447
[trace] ffmpeg: seek request from 447 to 466
[trace] ffmpeg: seek request from 466 to 482
[trace] ffmpeg: seek request from 482 to 500
[trace] ffmpeg: seek request from 500 to 516
[trace] ffmpeg: seek request from 516 to 535
[trace] ffmpeg: seek request from 535 to 551
[trace] ffmpeg: seek request from 551 to 570
[trace] ffmpeg: seek request from 570 to 586
[trace] ffmpeg: seek request from 586 to 604
[trace] ffmpeg: seek request from 604 to 620
[trace] ffmpeg: seek request from 620 to 639
[trace] ffmpeg: seek request from 639 to 655
[trace] ffmpeg: seek request from 655 to 674
[trace] ffmpeg: seek request from 674 to 690
[trace] ffmpeg: seek request from 690 to 708
[trace] ffmpeg: seek request from 708 to 724
[trace] ffmpeg: seek request from 724 to 742
[trace] ffmpeg: seek request from 742 to 758
[trace] ffmpeg: seek request from 758 to 773
[v] playlist: demuxer read all data; closing stream
[debug] ffmpeg: AVIOContext: Statistics: 773 bytes read, 0 seeks
[v] demux: Detected file format: hls (Playlist file)
[debug] global: cache path: '' -> '-'
[error] playlist: Failed to create file cache.
[v] cplayer: Opening done: https://staging-api.marisad.me/api/asset/track/0c40ef11-5b8f-4c50-ba14-4ef05eec856d/hls/128k/playlist.m3u8
[debug] global: state path: 'watch_later' -> '-'
[debug] global: state path: 'watch_later' -> '-'
[debug] global: state path: 'watch_later' -> '-'
[debug] global: state path: 'watch_later' -> '-'
[debug] global: state path: 'watch_later' -> '-'
[debug] global: state path: 'watch_later' -> '-'
[debug] global: state path: 'watch_later' -> '-'
[debug] global: state path: 'watch_later' -> '-'
[debug] global: state path: 'watch_later' -> '-'
[debug] global: state path: 'watch_later' -> '-'
[debug] global: state path: 'watch_later' -> '-'
[debug] global: state path: 'watch_later' -> '-'
[debug] global: state path: 'watch_later' -> '-'
[debug] global: state path: 'watch_later' -> '-'
[debug] global: state path: 'watch_later' -> '-'
[debug] global: state path: 'watch_later' -> '-'
[debug] global: state path: 'watch_later' -> '-'
[debug] global: state path: 'watch_later' -> '-'
[debug] global: state path: 'watch_later' -> '-'
[v] cplayer: Running hook: main/on_unload
[v] cplayer: Set property: http-header-fields=null -> -2
[v] cplayer: Set property: start="none" -> 1
[v] cplayer: Set property: end="none" -> 1
[v] cplayer: finished playback, success (reason 5)
[info] cplayer:
[debug] global: state path: 'watch_later' -> '-'
[info] cplayer: Playing: https://staging-api.marisad.me/api/asset/track/0c40ef11-5b8f-4c50-ba14-4ef05eec856d/hls/128k/segment_000.m4s
[v] cplayer: Running hook: main/on_load
[v] ffmpeg: Opening https://staging-api.marisad.me/api/asset/track/0c40ef11-5b8f-4c50-ba14-4ef05eec856d/hls/128k/segment_000.m4s
[trace] ffmpeg: https: Setting default whitelist 'http,https,tls,rtp,tcp,udp,crypto,httpproxy'
[trace] ffmpeg: tcp: Original list of addresses:
[trace] ffmpeg: tcp: Address 172.67.222.175 port 443
[trace] ffmpeg: tcp: Address 104.21.25.45 port 443
[trace] ffmpeg: tcp: Interleaved list of addresses:
[trace] ffmpeg: tcp: Address 172.67.222.175 port 443
[trace] ffmpeg: tcp: Address 104.21.25.45 port 443
[debug] ffmpeg: tcp: Starting connection attempt to 172.67.222.175 port 443
[debug] ffmpeg: tcp: Successfully connected to 172.67.222.175 port 443
[trace] ffmpeg: https: request: GET /api/asset/track/0c40ef11-5b8f-4c50-ba14-4ef05eec856d/hls/128k/segment_000.m4s HTTP/1.1
[trace] ffmpeg: User-Agent: libmpv
[trace] ffmpeg: Accept: */*
[trace] ffmpeg: Range: bytes=0-
[trace] ffmpeg: Connection: close
[trace] ffmpeg: Host: staging-api.marisad.me
[trace] ffmpeg: Icy-MetaData: 1
[trace] ffmpeg:
[trace] ffmpeg:
[trace] ffmpeg: https: header='HTTP/1.1 206 Partial Content'
[trace] ffmpeg: https: http_code=206
[trace] ffmpeg: https: header='Date: Thu, 30 Oct 2025 01:59:27 GMT'
[trace] ffmpeg: https: header='Content-Type: video/mp4'
[trace] ffmpeg: https: header='Content-Length: 162407'
[trace] ffmpeg: https: header='Connection: close'
[trace] ffmpeg: https: header='accept-ranges: bytes'
[trace] ffmpeg: https: header='last-modified: Thu, 06 Jun 2024 12:36:16 GMT'
[trace] ffmpeg: https: header='Nel: {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}'
[trace] ffmpeg: https: header='content-range: bytes 0-162406/162407'
[trace] ffmpeg: https: header='Cache-Control: max-age=7200'
[trace] ffmpeg: https: header='cf-cache-status: MISS'
[trace] ffmpeg: https: header='Strict-Transport-Security: max-age=2592000; includeSubDomains; preload'
[trace] ffmpeg: https: header='Speculation-Rules: "/cdn-cgi/speculation"'
[trace] ffmpeg: https: header='Vary: accept-encoding'
[trace] ffmpeg: https: header='Report-To: {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=GfFz8MneEUnFWaQ3RXMINaHCzQskqPUhjtsD%2BiKXctQYCuH7vdVr59szzjlajGWnT4CLm%2FGX69jdsDY7%2BFUF2os%2FGxjYZ0062WoDO7vfBn2Da6G8b3M%3D"}]}'
[trace] ffmpeg: https: header='Server: cloudflare'
[trace] ffmpeg: https: header='CF-RAY: 996750399ac2f278-IAD'
[trace] ffmpeg: https: header='alt-svc: h3=":443"; ma=86400'
[trace] ffmpeg: https: header=''
[debug] ffmpeg: resize stream to 131072 bytes, drop 0 bytes
[v] ffmpeg: Mime-type: 'video/mp4'
[debug] ffmpeg: Stream opened successfully.
[v] demux: Trying demuxers for level=normal.
[debug] demux: Trying demuxer: disc (force-level: normal)
[trace] ffmpeg: seek request from 0 to 0
[debug] demux: Trying demuxer: edl (force-level: normal)
[trace] ffmpeg: seek request from 0 to 0
[debug] demux: Trying demuxer: cue (force-level: normal)
[trace] ffmpeg: seek request from 0 to 0
[debug] demux: Trying demuxer: rawaudio (force-level: normal)
[trace] ffmpeg: seek request from 0 to 0
[debug] demux: Trying demuxer: rawvideo (force-level: normal)
[trace] ffmpeg: seek request from 0 to 0
[debug] demux: Trying demuxer: mkv (force-level: normal)
[trace] ffmpeg: seek request from 0 to 0
[debug] demux: Trying demuxer: libarchive (force-level: normal)
[trace] ffmpeg: seek request from 1 to 0
[debug] demux: Trying demuxer: lavf (force-level: normal)
[trace] ffmpeg: seek request from 0 to 0
[trace] ffmpeg: Probing mov,mp4,m4a,3gp,3g2,mj2 score:100 size:2048
[v] lavf: Found 'mov,mp4,m4a,3gp,3g2,mj2' at score=100 size=2048.
[trace] lavf: 2738=mp_read(00000220e7a59490, 00000220ff9bcf40, 32768), pos: 2738, eof:0
[trace] lavf: mp_seek(00000220e7a59490, 0, size)
[trace] ffmpeg/demuxer: mov,mp4,m4a,3gp,3g2,mj2: type:'styp' parent:'root' sz: 24 8 162407
[trace] ffmpeg/demuxer: mov,mp4,m4a,3gp,3g2,mj2: type:'sidx' parent:'root' sz: 52 32 162407
[trace] lavf: mp_seek(00000220e7a59490, 0, size)
[warn] ffmpeg/demuxer: mov,mp4,m4a,3gp,3g2,mj2: could not find corresponding track id 1
[trace] ffmpeg/demuxer: mov,mp4,m4a,3gp,3g2,mj2: type:'moof' parent:'root' sz: 1824 84 162407
[trace] ffmpeg/demuxer: mov,mp4,m4a,3gp,3g2,mj2: moof offset 4c
[trace] ffmpeg/demuxer: mov,mp4,m4a,3gp,3g2,mj2: type:'mfhd' parent:'moof' sz: 16 8 1816
[trace] ffmpeg/demuxer: mov,mp4,m4a,3gp,3g2,mj2: type:'traf' parent:'moof' sz: 1800 24 1816
[trace] ffmpeg/demuxer: mov,mp4,m4a,3gp,3g2,mj2: type:'tfhd' parent:'traf' sz: 28 8 1792
[warn] ffmpeg/demuxer: mov,mp4,m4a,3gp,3g2,mj2: could not find corresponding trex (id 1)
[trace] ffmpeg/demuxer: mov,mp4,m4a,3gp,3g2,mj2: type:'tfdt' parent:'traf' sz: 20 36 1792
[warn] ffmpeg/demuxer: mov,mp4,m4a,3gp,3g2,mj2: could not find corresponding track id 0
[trace] ffmpeg/demuxer: mov,mp4,m4a,3gp,3g2,mj2: type:'trun' parent:'traf' sz: 1744 56 1792
[error] ffmpeg/demuxer: mov,mp4,m4a,3gp,3g2,mj2: trun track id unknown, no tfhd was found
[error] ffmpeg/demuxer: mov,mp4,m4a,3gp,3g2,mj2: error reading header
[error] lavf: avformat_open_input() failed
[debug] demux: Trying demuxer: mf (force-level: normal)
[trace] ffmpeg: seek request from 2738 to 0
[debug] demux: Trying demuxer: playlist (force-level: normal)
[trace] ffmpeg: seek request from 0 to 0
[debug] demux: Trying demuxer: null (force-level: normal)
[trace] ffmpeg: seek request from 0 to 0
[v] demux: Trying demuxers for level=unsafe.
[debug] demux: Trying demuxer: disc (force-level: unsafe)
[trace] ffmpeg: seek request from 0 to 0
[debug] demux: Trying demuxer: edl (force-level: unsafe)
[trace] ffmpeg: seek request from 0 to 0
[debug] demux: Trying demuxer: cue (force-level: unsafe)
[trace] ffmpeg: seek request from 0 to 0
[debug] demux: Trying demuxer: rawaudio (force-level: unsafe)
[trace] ffmpeg: seek request from 0 to 0
[debug] demux: Trying demuxer: rawvideo (force-level: unsafe)
[trace] ffmpeg: seek request from 0 to 0
[debug] demux: Trying demuxer: mkv (force-level: unsafe)
[trace] ffmpeg: seek request from 0 to 0
[debug] demux: Trying demuxer: libarchive (force-level: unsafe)
[trace] ffmpeg: seek request from 1 to 0
[debug] ffmpeg: resize stream to 262144 bytes, drop 0 bytes
[debug] demux: Trying demuxer: lavf (force-level: unsafe)
[trace] ffmpeg: seek request from 0 to 0
[trace] ffmpeg: Probing mov,mp4,m4a,3gp,3g2,mj2 score:100 size:2048
[v] lavf: Found 'mov,mp4,m4a,3gp,3g2,mj2' at score=100 size=2048.
[trace] lavf: 32768=mp_read(00000220e7a59490, 00000220ff9bcf40, 32768), pos: 32768, eof:0
[trace] lavf: mp_seek(00000220e7a59490, 0, size)
[trace] ffmpeg/demuxer: mov,mp4,m4a,3gp,3g2,mj2: type:'styp' parent:'root' sz: 24 8 162407
[trace] ffmpeg/demuxer: mov,mp4,m4a,3gp,3g2,mj2: type:'sidx' parent:'root' sz: 52 32 162407
[trace] lavf: mp_seek(00000220e7a59490, 0, size)
[warn] ffmpeg/demuxer: mov,mp4,m4a,3gp,3g2,mj2: could not find corresponding track id 1
[trace] ffmpeg/demuxer: mov,mp4,m4a,3gp,3g2,mj2: type:'moof' parent:'root' sz: 1824 84 162407
[trace] ffmpeg/demuxer: mov,mp4,m4a,3gp,3g2,mj2: moof offset 4c
[trace] ffmpeg/demuxer: mov,mp4,m4a,3gp,3g2,mj2: type:'mfhd' parent:'moof' sz: 16 8 1816
[trace] ffmpeg/demuxer: mov,mp4,m4a,3gp,3g2,mj2: type:'traf' parent:'moof' sz: 1800 24 1816
[trace] ffmpeg/demuxer: mov,mp4,m4a,3gp,3g2,mj2: type:'tfhd' parent:'traf' sz: 28 8 1792
[warn] ffmpeg/demuxer: mov,mp4,m4a,3gp,3g2,mj2: could not find corresponding trex (id 1)
[trace] ffmpeg/demuxer: mov,mp4,m4a,3gp,3g2,mj2: type:'tfdt' parent:'traf' sz: 20 36 1792
[warn] ffmpeg/demuxer: mov,mp4,m4a,3gp,3g2,mj2: could not find corresponding track id 0
[trace] ffmpeg/demuxer: mov,mp4,m4a,3gp,3g2,mj2: type:'trun' parent:'traf' sz: 1744 56 1792
[error] ffmpeg/demuxer: mov,mp4,m4a,3gp,3g2,mj2: trun track id unknown, no tfhd was found
[error] ffmpeg/demuxer: mov,mp4,m4a,3gp,3g2,mj2: error reading header
[error] lavf: avformat_open_input() failed
[debug] demux: Trying demuxer: mf (force-level: unsafe)
[trace] ffmpeg: seek request from 32768 to 0
[debug] demux: Trying demuxer: playlist (force-level: unsafe)
[trace] ffmpeg: seek request from 0 to 0
[debug] demux: Trying demuxer: null (force-level: unsafe)
[trace] ffmpeg: seek request from 0 to 0
[debug] ffmpeg: AVIOContext: Statistics: 162407 bytes read, 0 seeks
[v] cplayer: Opening failed or was aborted: https://staging-api.marisad.me/api/asset/track/0c40ef11-5b8f-4c50-ba14-4ef05eec856d/hls/128k/segment_000.m4s
[v] cplayer: Running hook: main/on_unload
[v] cplayer: Set property: http-header-fields=null -> -2
[v] cplayer: Set property: start="none" -> 1
[v] cplayer: Set property: end="none" -> 1
[v] cplayer: finished playback, unrecognized file format (reason 4)
[error] cplayer: Failed to recognize file format.

0 replies

sqz269 · 2025-10-30T04:00:12Z

sqz269
Oct 30, 2025
Author

I think I figured out the issue, Spotube only depends on media_kit audio, which supports a reduced sets of demuxers. So when it tries open the file one of the log output [fatal] lavf: Unknown lavf format hls, indicates the audio version don't have a HLS demuxer (For reference the successful attempts outputted [v] lavf: Found 'hls' at score=100 size=805.. Currently I am fixing this by updating the pubspec.yaml to include video components of the media kit.

  media_kit: ^1.2.1 # Primary package.
  media_kit_video: ^1.3.1 # For video rendering.
  media_kit_libs_audio: ^1.0.7 # Native audio dependencies.
  media_kit_libs_video: ^1.0.7 # Native video dependencies.

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Issue with general HLS adaptive bitrate playlist support/Custom source provider #2833

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Issue with general HLS adaptive bitrate playlist support/Custom source provider #2833

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