Critical fixes for GStreamer playback:
1. Add preroll waiting in GStreamer.Load():
- Wait for ASYNC_DONE message after setting to PAUSED
- Ensures first frame is ready before playback
- Prevents black screen on load
2. Fix frameDisplayLoop to always pull frames:
- Remove paused check that blocked frame extraction
- Frames now pulled even when paused (enables scrubbing)
- Only update progress bar when playing
3. Add comprehensive logging:
- Log each frame update with size and timestamp
- Debug frame pull errors
- Track paused state during updates
4. Fix initial paused state:
- Explicitly set paused=true after load
- Matches GStreamer's PAUSED state
These changes fix:
- Black screen issue (no frames displaying)
- Scrubbing not working (frames not available when paused)
- Fast duration counting (progress only updates when playing)
- Replace unifiedAdapter with gstPlayer in playSession struct
- Update all playSession methods to use GStreamerPlayer:
- Play(), Pause(), Seek(), StepFrame()
- SetVolume(), Stop(), stopLocked(), startLocked()
- GetCurrentFrame()
- Add frameDisplayLoop() to continuously pull frames from GStreamer
- Connect GStreamer frame output to Fyne canvas for display
- Remove all UnifiedPlayerAdapter dependencies
This completes the GStreamer integration for both Player module
and Convert preview system. Both now use the same stable GStreamer
backend for video playback.
Major improvements to UnifiedPlayer:
1. GetFrameImage() now works when paused for responsive UI updates
2. Play() method properly starts FFmpeg process
3. Frame display loop runs continuously for smooth video display
4. Disabled audio temporarily to fix video playback fundamentals
5. Simplified FFmpeg command to focus on video stream only
Player now:
- Generates video frames correctly
- Shows video when paused
- Has responsive progress tracking
- Starts playback properly
Next steps: Re-enable audio playback once video is stable
- Remove extra closing brace on line 10999
- Remove large block of duplicate orphaned code (lines 11127-11170)
- Ensure all code is within proper function bodies
- Complete UnifiedPlayerAdapter integration with clean syntax
- Ready for successful compilation
- Fix unterminated string in author_menu.go line 418
- Fix invalid escape sequences in escapeDrawtextText function
- Remove orphaned code outside function body in main.go
- Fix extra parentheses causing syntax errors
- Ensure clean compilation for successful build
