Hello everyone,
I'm seeking advice on video playback implementation using TouchGFX 4.25 with a Riverdi RVT121HVSFWN00 display (12.1" LCD with STM32H7 MCU).
**Current working setup:**
- TouchGFX version: 4.25
- Display: Riverdi RVT121HVSFWN00
- Current video configuration: 480x272 resolution
- FFmpeg command that works:
ffmpeg -i video2.mp4 -s 480x272 -vcodec mjpeg -q:v 1 -pix_fmt yuv420p -color_range 1 -strict -1 -an output.avi
This works perfectly with the Video widget alongside other UI elements (backgrounds, buttons, etc.)
When I try to increase the video resolution to 800x800 pixels, I only get a black screen. No video is displayed.
**What I've tried:**
1. Modified FFmpeg command for 800x800:
ffmpeg -i input.mp4 -vf "scale=800:800:force_original_aspect_ratio=decrease,pad=800:800:(ow-iw)/2:(oh-ih)/2" \
-c:v libxvid -qscale:v 5 -c:a libmp3lame -b:a 128k output.avi
```
2. Also tried various combinations with `mjpeg` codec and different pixel formats
**My questions:**
1. Are there hardware limitations with the STM32H7 (likely in the Riverdi display) that prevent 800x800 video playback?
2. Do I need additional configuration in TouchGFX for higher resolution videos?
3. Could this be a memory issue (SDRAM configuration maybe)?
4. Are there specific codec/pixel format requirements for larger videos in TouchGFX?
**Additional context:**
- The display has a native resolution of 1280x800
- I'm using the Video widget within a screen containing other graphical elements
- The 480x272 video works flawlessly, suggesting the basic setup is correct
**What I suspect:**
- Possible memory constraints (800x800 RGB565 = ~1.25MB per frame)
- Maybe SDRAM isn't properly configured for larger video buffers
- Could be a decoding performance issue with higher resolution
Has anyone successfully implemented 800x800 or similar high-resolution video playback on STM32H7 with TouchGFX? Any guidance on:
- Optimal FFmpeg parameters for larger videos
- TouchGFX configuration adjustments
- Memory management strategies
- Hardware limitations to consider
Any help or insights would be greatly appreciated!
Thank you in advance.
