# GStreamer 1 fps recording issue: first 3 seconds show frozen frame

**URL:** https://discourse.gstreamer.org/t/gstreamer-1-fps-recording-issue-first-3-seconds-show-frozen-frame/5339
**Category:** Application Development
**Created:** [September 3, 2025, 6:23am UTC](https://discourse.gstreamer.org/t/gstreamer-1-fps-recording-issue-first-3-seconds-show-frozen-frame/5339 "2025-09-03T06:23:29Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![RamazanCorduk](https://discourse.gstreamer.org/letter_avatar_proxy/v4/letter/r/f4b2a3/32.png) [@RamazanCorduk](https://discourse.gstreamer.org/u/RamazanCorduk)
#### Post date: [September 3, 2025, 6:23am UTC](https://discourse.gstreamer.org/t/gstreamer-1-fps-recording-issue-first-3-seconds-show-frozen-frame/5339/1 "2025-09-03T06:23:30Z")

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Hello,

I’m working on an embedded project on an i.MX8 platform (Yocto Linux).  
I want to record video at **1 fps** to reduce memory usage. My GStreamer pipeline is similar to this:

```auto
rtspsrc location=rtsp://<ip> latency=100 !
rtph264depay ! h264parse !
v4l2h264dec ! imxvideoconvert_g2d !
video/x-raw,format=RGBA,width=512,height=300 !
videorate !
video/x-raw,framerate=1/1 !
appsink name=myappsink

```

The problem:  
When I record at 1 fps, the **first 3 seconds of the video show the same frozen frame** (the very first frame). After ~3 seconds, the recording continues correctly with 1 fps as expected.

When I test with higher fps (e.g. 3 fps), the problem disappears.

I suspect this may be related to:

- Missing/incorrect timestamps (PTS/DTS) from decoder,

- Keyframe (GOP/IDR) interval issues at low fps,

- mp4mux or encoder waiting for the first IDR frame.

Has anyone experienced this issue?  
Is there a recommended way to:

1. Force every frame to be treated as a keyframe, or

2. Normalize timestamps after decoder (e.g. `identity single-segment=true sync=true`), or

3. Configure `videorate`/encoder to avoid frozen initial frames at 1 fps?

Any suggestions or working pipeline examples would be greatly appreciated.

Thanks in advance!

---

<div class="post-metadata">

### Author: ![RamazanCorduk](https://discourse.gstreamer.org/letter_avatar_proxy/v4/letter/r/f4b2a3/32.png) [@RamazanCorduk](https://discourse.gstreamer.org/u/RamazanCorduk)
#### Post date: [September 3, 2025, 6:58am UTC](https://discourse.gstreamer.org/t/gstreamer-1-fps-recording-issue-first-3-seconds-show-frozen-frame/5339/2 "2025-09-03T06:58:07Z")

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Fixed: Player error, problem solved with a different player. VLC plays video incorrectly at 1-2 FPS.