Docker: Filter and stop FFmpeg which started in container only

[VietND96]

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Description

Fixes #2775

Motivation and Context

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• I have read the contributing document.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• All new and existing tests passed.

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PR Type

Bug fix

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Description

• Restricts FFmpeg process management to container-started instances

• Prevents interference with external FFmpeg processes

• Updates process filtering logic in video recording scripts

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Changes walkthrough 📝

	Relevant files
Bug fix	video.sh Restrict FFmpeg process handling to container-initiated processes Video/video.sh Changes FFmpeg process detection to match only those started with '-hide_banner' Updates all relevant process management commands (pgrep, kill, wait) to use the new filter Prevents accidental termination or waiting on unrelated FFmpeg processes +3/-3

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PR Reviewer Guide 🔍

Here are some key observations to aid the review process:

🎫 Ticket compliance analysis ✅ 2775 - Fully compliant Compliant requirements: • Fix the issue where the video.sh script is trying to wait for FFmpeg processes that are not children of the shell • Modify the stop_ffmpeg function to ensure it only finds and manages FFmpeg processes started by the container itself • Prevent interference with external FFmpeg processes (like those used to check video integrity)

⏱️ Estimated effort to review: 1 🔵⚪⚪⚪⚪

🧪 No relevant tests

🔒 No security concerns identified

⚡ No major issues detected

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PR Code Suggestions ✨

Explore these optional code suggestions:

Category	Suggestion	Impact
Possible issue	Wait for all terminated processes The current implementation may cause issues if multiple FFmpeg processes are running. When multiple PIDs are returned, the wait command will only wait for the last PID in the list. Use a loop to properly wait for all terminated processes. Video/video.sh [145-149] -FFMPEG_PID=$(pgrep -f "ffmpeg -hide_banner" | tr '\n' ' ') -if [ -n "$FFMPEG_PID" ]; then - kill -SIGTERM $FFMPEG_PID - wait $FFMPEG_PID +FFMPEG_PIDS=$(pgrep -f "ffmpeg -hide_banner" | tr '\n' ' ') +if [ -n "$FFMPEG_PIDS" ]; then + kill -SIGTERM $FFMPEG_PIDS + for pid in $FFMPEG_PIDS; do + wait $pid 2>/dev/null || true + done fi Apply this suggestion Suggestion importance[1-10]: 7 __ Why: The suggestion correctly identifies that wait $FFMPEG_PID might behave unexpectedly if $FFMPEG_PID contains multiple PIDs. The proposed loop ensures each process ID is waited upon individually, improving the robustness of the shutdown logic when multiple FFmpeg instances might be running.	Medium
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