# Wowza video recording sometimes generates a video "Could not find codec parameters for stream 0"

**URL:** <https://community.wowza.com/t/wowza-video-recording-sometimes-generates-a-video-could-not-find-codec-parameters-for-stream-0/51213>\
**Category:** Wowza Streaming Engine\
**Tags:** recording\
**Created:** [April 26, 2018, 3:57pm UTC](https://community.wowza.com/t/wowza-video-recording-sometimes-generates-a-video-could-not-find-codec-parameters-for-stream-0/51213 "2018-04-26T15:57:08Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Francesc\_Santanach](https://avatars.discourse-cdn.com/v4/letter/f/43a26b/32.png) [@Francesc\_Santanach](https://community.wowza.com/u/Francesc_Santanach)\
**Post date:** [April 26, 2018, 3:57pm UTC](https://community.wowza.com/t/wowza-video-recording-sometimes-generates-a-video-could-not-find-codec-parameters-for-stream-0/51213/1 "2018-04-26T15:57:08Z")

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Hi! we are using the Videochat application

[https://www.wowza.com/resources/3.6.0/examples/VideoChat/FlashRTMPPlayer/player.html](https://www.wowza.com/resources/3.6.0/examples/VideoChat/FlashRTMPPlayer/player.html)

The most videos are recorded well but sometimes we get this kind of errors

```auto
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x3f88e60] decoding for stream 0 failed

[mov,mp4,m4a,3gp,3g2,mj2 @ 0x3f88e60] Could not find codec parameters for stream 0 (Video: h264 (avc1 / 0x31637661), none, 320x240, 117 kb/s): unspecified pixel format

```

We are using

live-record-lowlatency

Any ideas?

Best regards