[Support]: Downloaded clips are corrupted #10943

clowncracker · 2024-04-11T17:39:04Z

clowncracker
Apr 11, 2024

Describe the problem you are having

I've tried downloading clips in Firefox, Chrome, in Home Assistant, and on my phone but every time I download a clip it's corrupted. Then my cameras stop working momentarily and I then get errors in my Frigate logs. I can view the clips in the Frigate webUI and in Home Assistant.

Version

0.13.2-6476f8a

Frigate config file

mqtt:
  host: xxx
  user: xxx
  password: xxx

go2rtc:
  streams:
    front_door:
      - "ffmpeg:http://xxx/flv?port=1935&app=bcs&stream=channel0_main.bcs&user=xxx&password=xxx#video=copy#audio=copy#audio=opus"
      - rtsp://http://xxx/Preview_01_sub
    garage:
      - "ffmpeg:http://xxx/flv?port=1935&app=bcs&stream=channel0_main.bcs&user=xxx&password=xxx#video=copy#audio=copy#audio=opus"
    office:
      - "ffmpeg:http://xxx/flv?port=1935&app=bcs&stream=channel0_main.bcs&user=xxx&password=xxx#video=copy#audio=copy#audio=opus"

detectors:
  coral:
    type: edgetpu
    device: usb

cameras:
  front_door: 
    mqtt:
      timestamp: false
      bounding_box: false
      crop: true
      quality: 100
      height: 500
      required_zones:
        - entryway
    ffmpeg:
      output_args:
        record: preset-record-generic-audio-aac
      hwaccel_args: preset-vaapi
      inputs:
        - path: rtsp://127.0.0.1:8554/front_door?video=copy&audio=aac
          input_args: preset-rtsp-restream
          roles:
            - detect
            - record
    detect:
      width: 2560
      height: 1920
      fps: 5
    record:
      enabled: true
      retain:
        days: 14
        mode: all
    objects:
      track:
        - person
        - car
      filters:
        person:
          mask:
            - 438,916,469,598,556,260,656,0,922,0,1051,286,1028,669,1021,976,1023,1077,997,1111,924,1108,823,1103,611,1091,439,1082
            - 1151,1070,1171,1115,1271,1115,1480,1110,1768,1106,2115,1081,2301,1054,2299,872,2277,689,2236,522,2134,528,1897,471,1516,423,1156,426
        car:
          mask:
            - 438,916,469,598,556,260,656,0,922,0,1051,286,1028,669,1021,976,1023,1077,997,1111,924,1108,823,1103,611,1091,439,1082
            - 1151,1070,1171,1115,1271,1115,1480,1110,1768,1106,2115,1081,2301,1054,2299,872,2277,689,2236,522,2134,528,1897,471,1516,423,1156,426
    snapshots:
      enabled: true
    zones:
      entryway:
        coordinates: 2560,1920,2560,1681,2173,1506,1928,1579,1593,1321,930,1404,475,1307,321,1319,0,1319,0,1920
  garage: 
    ffmpeg:
      output_args:
        record: preset-record-generic-audio-aac
      hwaccel_args: preset-vaapi
      inputs:
        - path: rtsp://127.0.0.1:8554/garage?video=copy&audio=aac
          input_args: preset-rtsp-restream
          roles:
            - detect
            - record
    detect:
      enabled: true
      width: 2560
      height: 1920
      fps: 5
    record:
      enabled: true
      retain:
        days: 2
        mode: all
    objects:
      track:
        - person
      filters:
        person:
          mask:
            - 0,0,2560,0,2560,353,963,383,486,431,0,529
            - 216,1920,906,1920,627,978,268,1022,165,1617,160,1767
    snapshots:
      enabled: true
  office: 
    ffmpeg:
      output_args:
        record: preset-record-generic-audio-aac
      hwaccel_args: preset-vaapi
      inputs:
        - path: rtsp://127.0.0.1:8554/office?video=copy&audio=aac
          input_args: preset-rtsp-restream
          roles:
            - audio
            - detect
            - record
    audio:
      enabled: true
    detect:
      enabled: true
      width: 2560
      height: 1920
      fps: 5
    record:
      enabled: true
      retain:
        days: 2
        mode: all
      events:
        objects: []
    objects:
      track:
        - person
      filters:
        person:
          mask:
            - 465,237,173,300,292,945,549,908
    snapshots:
      enabled: false

Relevant log output

2024-04-11 10:36:29.855098573  [2024-04-11 10:36:29] frigate.http                   ERROR   : [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55d945557fc0] Auto-inserting h264_mp4toannexb bitstream filter
2024-04-11 10:36:29.855102175  Input #0, concat, from '/dev/stdin':
2024-04-11 10:36:29.855103198    Duration: N/A, start: -0.051000, bitrate: 5281 kb/s
2024-04-11 10:36:29.855104433    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(progressive), 2560x1920, 5244 kb/s, 20.01 fps, 20 tbr, 90k tbn
2024-04-11 10:36:29.855105269      Metadata:
2024-04-11 10:36:29.855106129        handler_name    : VideoHandler
2024-04-11 10:36:29.855106979        vendor_id       : [0][0][0][0]
2024-04-11 10:36:29.855107890    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 16000 Hz, mono, fltp, 36 kb/s
2024-04-11 10:36:29.855108620      Metadata:
2024-04-11 10:36:29.855109395        handler_name    : SoundHandler
2024-04-11 10:36:29.855110182        vendor_id       : [0][0][0][0]
2024-04-11 10:36:29.855111078  Output #0, mp4, to '/tmp/cache/clip_front_door_1712768993.707052-1712769120.649732.mp4':
2024-04-11 10:36:29.855111816    Metadata:
2024-04-11 10:36:29.855112592      encoder         : Lavf59.27.100
2024-04-11 10:36:29.855113629    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(progressive), 2560x1920, q=2-31, 5244 kb/s, 20.01 fps, 20 tbr, 90k tbn
2024-04-11 10:36:29.855114363      Metadata:
2024-04-11 10:36:29.855115133        handler_name    : VideoHandler
2024-04-11 10:36:29.855115920        vendor_id       : [0][0][0][0]
2024-04-11 10:36:29.855116885    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 16000 Hz, mono, fltp, 36 kb/s
2024-04-11 10:36:29.855117641      Metadata:
2024-04-11 10:36:29.855118426        handler_name    : SoundHandler
2024-04-11 10:36:29.855119172        vendor_id       : [0][0][0][0]
2024-04-11 10:36:29.855119872  Stream mapping:
2024-04-11 10:36:29.855120633    Stream #0:0 -> #0:0 (copy)
2024-04-11 10:36:29.855146029    Stream #0:1 -> #0:1 (copy)
2024-04-11 10:36:29.855146998  frame=    0 fps=0.0 q=-1.0 size=       0kB time=00:00:00.06 bitrate=   6.0kbits/s speed=6.4e+04x    
2024-04-11 10:36:29.855147893  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55d945558280] Auto-inserting h264_mp4toannexb bitstream filter
2024-04-11 10:36:29.855148761  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55d94556aac0] Auto-inserting h264_mp4toannexb bitstream filter
2024-04-11 10:36:29.855149691  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55d94556ad80] Auto-inserting h264_mp4toannexb bitstream filter
2024-04-11 10:36:29.855150607  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55d94558d7c0] Auto-inserting h264_mp4toannexb bitstream filter
2024-04-11 10:36:29.855151578  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55d9456979c0] Auto-inserting h264_mp4toannexb bitstream filter
2024-04-11 10:36:29.855152527  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55d945574500] Auto-inserting h264_mp4toannexb bitstream filter
2024-04-11 10:36:29.855153516  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55d94568f0c0] Auto-inserting h264_mp4toannexb bitstream filter
2024-04-11 10:36:29.855154311      Last message repeated 2 times
2024-04-11 10:36:29.855155153  av_interleaved_write_frame(): No space left on device
2024-04-11 10:36:29.855156073  [mp4 @ 0x55d94559abc0] Starting second pass: moving the moov atom to the beginning of the file
2024-04-11 10:36:29.855157050  Error writing trailer of /tmp/cache/clip_front_door_1712768993.707052-1712769120.649732.mp4: No space left on device
2024-04-11 10:36:29.855157970  frame= 1761 fps=0.0 q=-1.0 Lsize=   56576kB time=00:01:28.23 bitrate=5253.0kbits/s speed= 212x    
2024-04-11 10:36:29.855158917  video:56691kB audio:414kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
2024-04-11 10:36:29.855159904  Error closing file /tmp/cache/clip_front_door_1712768993.707052-1712769120.649732.mp4: No space left on device
2024-04-11 10:36:29.855160619  Conversion failed!
2024-04-11 10:36:29.855161296  
2024-04-11 10:36:29.917071395  [2024-04-11 10:36:29] frigate.video                  ERROR   : garage: Unable to read frames from ffmpeg process.
2024-04-11 10:36:29.917150871  [2024-04-11 10:36:29] frigate.video                  ERROR   : garage: ffmpeg process is not running. exiting capture thread...
2024-04-11 10:36:29.982552527  [2024-04-11 10:36:29] frigate.video                  ERROR   : front_door: Unable to read frames from ffmpeg process.
2024-04-11 10:36:29.982568648  [2024-04-11 10:36:29] frigate.video                  ERROR   : front_door: ffmpeg process is not running. exiting capture thread...
2024-04-11 10:36:30.202937262  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x14f7940132c0] moov atom not found
2024-04-11 10:36:30.203016117  [ERROR:[email protected]] global cap.cpp:164 open VIDEOIO(CV_IMAGES): raised OpenCV exception:
2024-04-11 10:36:30.203017671  
2024-04-11 10:36:30.203018931  OpenCV(4.7.0) /io/opencv/modules/videoio/src/cap_images.cpp:267: error: (-215:Assertion failed) number < max_number in function 'icvExtractPattern'
2024-04-11 10:36:30.203019730  
2024-04-11 10:36:30.203020500  
2024-04-11 10:36:30.266604400  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x14f7940132c0] moov atom not found
2024-04-11 10:36:30.266673527  [ERROR:[email protected]] global cap.cpp:164 open VIDEOIO(CV_IMAGES): raised OpenCV exception:
2024-04-11 10:36:30.266675042  
2024-04-11 10:36:30.266676278  OpenCV(4.7.0) /io/opencv/modules/videoio/src/cap_images.cpp:267: error: (-215:Assertion failed) number < max_number in function 'icvExtractPattern'
2024-04-11 10:36:30.266677089  
2024-04-11 10:36:30.266677829  
2024-04-11 10:36:30.278898085  [2024-04-11 10:36:30] frigate.record.maintainer      WARNING : Failed to probe corrupt segment /tmp/cache/[email protected]
2024-04-11 10:36:30.278961969  [2024-04-11 10:36:30] frigate.record.maintainer      WARNING : Discarding a corrupt recording segment: /tmp/cache/[email protected]
2024-04-11 10:36:30.280379487  [2024-04-11 10:36:30] frigate.record.maintainer      WARNING : Failed to probe corrupt segment /tmp/cache/[email protected]
2024-04-11 10:36:30.280437218  [2024-04-11 10:36:30] frigate.record.maintainer      WARNING : Discarding a corrupt recording segment: /tmp/cache/[email protected]
2024-04-11 10:36:31.877750709  [2024-04-11 10:36:31] watchdog.garage                ERROR   : Ffmpeg process crashed unexpectedly for garage.
2024-04-11 10:36:31.877807110  [2024-04-11 10:36:31] watchdog.garage                ERROR   : The following ffmpeg logs include the last 100 lines prior to exit.
2024-04-11 10:36:31.877851240  [2024-04-11 10:36:31] ffmpeg.garage.detect           ERROR   : [segment @ 0x55b0f103bf80] Timestamps are unset in a packet for stream 0. This is deprecated and will stop working in the future. Fix your code to set the timestamps properly
2024-04-11 10:36:31.877890842  [2024-04-11 10:36:31] ffmpeg.garage.detect           ERROR   : av_interleaved_write_frame(): No space left on device
2024-04-11 10:36:31.877929496  [2024-04-11 10:36:31] ffmpeg.garage.detect           ERROR   :     Last message repeated 1 times
2024-04-11 10:36:31.877967500  [2024-04-11 10:36:31] ffmpeg.garage.detect           ERROR   : [segment @ 0x55b0f103bf80] Failure occurred when ending segment '/tmp/cache/[email protected]'
2024-04-11 10:36:31.878005350  [2024-04-11 10:36:31] ffmpeg.garage.detect           ERROR   : Error writing trailer of /tmp/cache/garage@%Y%m%d%H%M%S%z.mp4: No space left on device
2024-04-11 10:36:38.574582274  [2024-04-11 10:36:38] watchdog.front_door            ERROR   : Ffmpeg process crashed unexpectedly for front_door.
2024-04-11 10:36:38.574649410  [2024-04-11 10:36:38] watchdog.front_door            ERROR   : The following ffmpeg logs include the last 100 lines prior to exit.
2024-04-11 10:36:38.574651565  [2024-04-11 10:36:38] ffmpeg.front_door.detect       ERROR   : [segment @ 0x5623d4df13c0] Timestamps are unset in a packet for stream 0. This is deprecated and will stop working in the future. Fix your code to set the timestamps properly
2024-04-11 10:36:38.574717854  [2024-04-11 10:36:38] ffmpeg.front_door.detect       ERROR   : av_interleaved_write_frame(): No space left on device
2024-04-11 10:36:38.574719624  [2024-04-11 10:36:38] ffmpeg.front_door.detect       ERROR   :     Last message repeated 2 times
2024-04-11 10:36:38.574780391  [2024-04-11 10:36:38] ffmpeg.front_door.detect       ERROR   : [segment @ 0x5623d4df13c0] Failure occurred when ending segment '/tmp/cache/[email protected]'
2024-04-11 10:36:38.574782313  [2024-04-11 10:36:38] ffmpeg.front_door.detect       ERROR   : Error writing trailer of /tmp/cache/front_door@%Y%m%d%H%M%S%z.mp4: No space left on device
2024-04-11 10:36:53.948027243  [2024-04-11 10:36:53] frigate.video                  ERROR   : garage: Unable to read frames from ffmpeg process.
2024-04-11 10:36:53.948038946  [2024-04-11 10:36:53] frigate.video                  ERROR   : garage: ffmpeg process is not running. exiting capture thread...
2024-04-11 10:36:53.971716933  [2024-04-11 10:36:53] frigate.video                  ERROR   : office: Unable to read frames from ffmpeg process.
2024-04-11 10:36:53.971773783  [2024-04-11 10:36:53] frigate.video                  ERROR   : office: ffmpeg process is not running. exiting capture thread...
2024-04-11 10:36:54.421647375  [2024-04-11 10:36:54] frigate.video                  ERROR   : front_door: Unable to read frames from ffmpeg process.
2024-04-11 10:36:54.421650259  [2024-04-11 10:36:54] frigate.video                  ERROR   : front_door: ffmpeg process is not running. exiting capture thread...
2024-04-11 10:36:55.195756667  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x14f79412b900] moov atom not found
2024-04-11 10:36:55.195837199  [ERROR:[email protected]] global cap.cpp:164 open VIDEOIO(CV_IMAGES): raised OpenCV exception:
2024-04-11 10:36:55.195838868  
2024-04-11 10:36:55.195840052  OpenCV(4.7.0) /io/opencv/modules/videoio/src/cap_images.cpp:267: error: (-215:Assertion failed) number < max_number in function 'icvExtractPattern'
2024-04-11 10:36:55.195840841  
2024-04-11 10:36:55.195841596  
2024-04-11 10:36:55.255867736  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x14f79412b900] moov atom not found
2024-04-11 10:36:55.255934443  [ERROR:[email protected]] global cap.cpp:164 open VIDEOIO(CV_IMAGES): raised OpenCV exception:
2024-04-11 10:36:55.255935493  
2024-04-11 10:36:55.255936721  OpenCV(4.7.0) /io/opencv/modules/videoio/src/cap_images.cpp:267: error: (-215:Assertion failed) number < max_number in function 'icvExtractPattern'
2024-04-11 10:36:55.255937483  
2024-04-11 10:36:55.255938229  
2024-04-11 10:36:55.265904103  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x14f79417fa40] moov atom not found
2024-04-11 10:36:55.265977805  [ERROR:[email protected]] global cap.cpp:164 open VIDEOIO(CV_IMAGES): raised OpenCV exception:
2024-04-11 10:36:55.265979350  
2024-04-11 10:36:55.265980628  OpenCV(4.7.0) /io/opencv/modules/videoio/src/cap_images.cpp:267: error: (-215:Assertion failed) number < max_number in function 'icvExtractPattern'
2024-04-11 10:36:55.265981410  
2024-04-11 10:36:55.265982145  
2024-04-11 10:36:55.278439323  [2024-04-11 10:36:55] frigate.record.maintainer      WARNING : Failed to probe corrupt segment /tmp/cache/[email protected]
2024-04-11 10:36:55.278511398  [2024-04-11 10:36:55] frigate.record.maintainer      WARNING : Discarding a corrupt recording segment: /tmp/cache/[email protected]
2024-04-11 10:36:55.278512807  [2024-04-11 10:36:55] frigate.record.maintainer      WARNING : Failed to probe corrupt segment /tmp/cache/[email protected]
2024-04-11 10:36:55.278572174  [2024-04-11 10:36:55] frigate.record.maintainer      WARNING : Discarding a corrupt recording segment: /tmp/cache/[email protected]
2024-04-11 10:36:55.280050543  [2024-04-11 10:36:55] frigate.record.maintainer      WARNING : Failed to probe corrupt segment /tmp/cache/[email protected]
2024-04-11 10:36:55.280093540  [2024-04-11 10:36:55] frigate.record.maintainer      WARNING : Discarding a corrupt recording segment: /tmp/cache/[email protected]
2024-04-11 10:36:58.586898289  [2024-04-11 10:36:58] watchdog.front_door            ERROR   : Ffmpeg process crashed unexpectedly for front_door.
2024-04-11 10:36:58.586920767  [2024-04-11 10:36:58] watchdog.front_door            ERROR   : The following ffmpeg logs include the last 100 lines prior to exit.
2024-04-11 10:36:58.587001001  [2024-04-11 10:36:58] ffmpeg.front_door.detect       ERROR   : [segment @ 0x55d7a36a23c0] Timestamps are unset in a packet for stream 0. This is deprecated and will stop working in the future. Fix your code to set the timestamps properly
2024-04-11 10:36:58.587024902  [2024-04-11 10:36:58] ffmpeg.front_door.detect       ERROR   : av_interleaved_write_frame(): No space left on device
2024-04-11 10:36:58.587119513  [2024-04-11 10:36:58] ffmpeg.front_door.detect       ERROR   :     Last message repeated 1 times
2024-04-11 10:36:58.587121516  [2024-04-11 10:36:58] ffmpeg.front_door.detect       ERROR   : [segment @ 0x55d7a36a23c0] Failure occurred when ending segment '/tmp/cache/[email protected]'
2024-04-11 10:36:58.587154986  [2024-04-11 10:36:58] ffmpeg.front_door.detect       ERROR   : Error writing trailer of /tmp/cache/front_door@%Y%m%d%H%M%S%z.mp4: No space left on device
2024-04-11 10:37:01.884576384  [2024-04-11 10:37:01] watchdog.garage                ERROR   : Ffmpeg process crashed unexpectedly for garage.
2024-04-11 10:37:01.884589033  [2024-04-11 10:37:01] watchdog.garage                ERROR   : The following ffmpeg logs include the last 100 lines prior to exit.
2024-04-11 10:37:01.884658567  [2024-04-11 10:37:01] ffmpeg.garage.detect           ERROR   : [segment @ 0x55cd8510c5c0] Timestamps are unset in a packet for stream 0. This is deprecated and will stop working in the future. Fix your code to set the timestamps properly
2024-04-11 10:37:01.884661193  [2024-04-11 10:37:01] ffmpeg.garage.detect           ERROR   : av_interleaved_write_frame(): No space left on device
2024-04-11 10:37:01.884703427  [2024-04-11 10:37:01] ffmpeg.garage.detect           ERROR   :     Last message repeated 1 times
2024-04-11 10:37:01.884738726  [2024-04-11 10:37:01] ffmpeg.garage.detect           ERROR   : [segment @ 0x55cd8510c5c0] Failure occurred when ending segment '/tmp/cache/[email protected]'
2024-04-11 10:37:01.884769501  [2024-04-11 10:37:01] ffmpeg.garage.detect           ERROR   : Error writing trailer of /tmp/cache/garage@%Y%m%d%H%M%S%z.mp4: No space left on device
2024-04-11 10:37:01.895266424  [2024-04-11 10:37:01] watchdog.office                ERROR   : Ffmpeg process crashed unexpectedly for office.
2024-04-11 10:37:01.895317717  [2024-04-11 10:37:01] watchdog.office                ERROR   : The following ffmpeg logs include the last 100 lines prior to exit.
2024-04-11 10:37:01.895358381  [2024-04-11 10:37:01] ffmpeg.office.detect           ERROR   : av_interleaved_write_frame(): No space left on device
2024-04-11 10:37:01.895396385  [2024-04-11 10:37:01] ffmpeg.office.detect           ERROR   :     Last message repeated 1 times
2024-04-11 10:37:01.895460739  [2024-04-11 10:37:01] ffmpeg.office.detect           ERROR   : [segment @ 0x5619a9675480] Failure occurred when ending segment '/tmp/cache/[email protected]'
2024-04-11 10:37:01.895512997  [2024-04-11 10:37:01] ffmpeg.office.detect           ERROR   : Error writing trailer of /tmp/cache/office@%Y%m%d%H%M%S%z.mp4: No space left on device

FFprobe output from your camera

Frigate stats

No response

Operating system

UNRAID

Install method

Docker Compose

Coral version

USB

Network connection

Wired

Camera make and model

Reolink Video Doorbell Wifi

Any other information that may be helpful

No response

Answered by NickM-27

Apr 11, 2024

av_interleaved_write_frame(): No space left on device

you don't have enough /tmp/cache allocated to frigate for the downloaded clip to fit in ram

View full answer

NickM-27 · 2024-04-11T17:41:50Z

NickM-27
Apr 11, 2024
Collaborator Sponsor

av_interleaved_write_frame(): No space left on device

you don't have enough /tmp/cache allocated to frigate for the downloaded clip to fit in ram

2 replies

NickM-27 Apr 11, 2024
Collaborator Sponsor

right, you have only allocated 100MB of /tmp/cache. Almost any video that is full recording resolution will use more than that

NickM-27 Apr 11, 2024
Collaborator Sponsor

in general exports are recommended to be used and the next version of frigate will use exports for saving and downloading video

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

[Support]: Downloaded clips are corrupted #10943

{{title}}

Replies: 1 comment 2 replies

{{title}}

{{title}}

{{title}}

Select a reply

[Support]: Downloaded clips are corrupted #10943

clowncracker Apr 11, 2024

Describe the problem you are having

Version

Frigate config file

Relevant log output

FFprobe output from your camera

Frigate stats

Operating system

Install method

Coral version

Network connection

Camera make and model

Any other information that may be helpful

Replies: 1 comment · 2 replies

NickM-27 Apr 11, 2024 Collaborator Sponsor

NickM-27 Apr 11, 2024 Collaborator Sponsor

NickM-27 Apr 11, 2024 Collaborator Sponsor

clowncracker
Apr 11, 2024

Replies: 1 comment 2 replies

NickM-27
Apr 11, 2024
Collaborator Sponsor

NickM-27 Apr 11, 2024
Collaborator Sponsor

NickM-27 Apr 11, 2024
Collaborator Sponsor