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box: add webcam input and fix bash conditionals #3882

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Merged
rickstaa merged 3 commits into from
Mar 20, 2026
Merged

box: add webcam input and fix bash conditionals #3882

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e829cc0
box: add webcam input support to stream.sh
rickstaa Mar 18, 2026
305ba6b
box: use bash [[ ]] conditionals in box.sh
rickstaa Mar 18, 2026
bb00d7b
Merge branch 'master' into feat/box-webcam-input
rickstaa Mar 20, 2026
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12 changes: 12 additions & 0 deletions box/box.md
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Original file line number Diff line number Diff line change
Expand Up @@ -84,6 +84,18 @@ export RTMP_OUTPUT=rtmp://rtmp.livepeer.com/live/$STREAM_KEY

This one is only required for the `box-stream` command. It is useful when you cannot use the `box-playback` command to play the stream, for example when you are using a remote non-UI machine.

### Video Input

By default, `box-stream` uses a generated test pattern. You can use a video file or webcam instead:

```bash
# Use a video file
export INPUT_VIDEO=/path/to/video.mp4

# Or use a webcam (Linux)
export INPUT_WEBCAM=/dev/video0
```

### Docker
If you want to run the box in a docker container, set the `DOCKER` env var:
```bash
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6 changes: 3 additions & 3 deletions box/box.sh
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Expand Up @@ -4,14 +4,14 @@ set -e
DOCKER=${DOCKER:-false}
FRONTEND=${FRONTEND:-false}

if [ "$FRONTEND" = "true" && "$DOCKER" = "false" ]; then
if [[ "$FRONTEND" = "true" && "$DOCKER" = "false" ]]; then
echo "Running the box with FRONTEND=true requires DOCKER=true"
exit 1
fi

# Ensure backgrounded services are stopped gracefully when this script is interrupted or exits.
cleanup() {
if [ "$DOCKER" = "true" ]; then
if [[ "$DOCKER" = "true" ]]; then
echo "Stopping dockerized services..."
docker stop orchestrator --time 15 >/dev/null 2>&1 || true
docker stop gateway --time 15 >/dev/null 2>&1 || true
Expand Down Expand Up @@ -51,7 +51,7 @@ gateway &
orchestrator &
mediamtx &

if [ "$FRONTEND" = "true" ]; then
if [[ "$FRONTEND" = "true" ]]; then
supabase &
frontend &
fi
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5 changes: 5 additions & 0 deletions box/stream.sh
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Expand Up @@ -7,6 +7,7 @@ STREAM_ID="my-stream-id"
RTMP_OUTPUT=${RTMP_OUTPUT:-""}
FPS=${FPS:-30}
INPUT_VIDEO=${INPUT_VIDEO:-""}
INPUT_WEBCAM=${INPUT_WEBCAM:-""}

case "$1" in
start)
Expand All @@ -22,7 +23,11 @@ case "$1" in

INPUT_FLAGS="-f lavfi -i testsrc=size=1280x720:rate=${FPS},format=yuv420p"
if [ -n "$INPUT_VIDEO" ]; then
echo "Using video file: ${INPUT_VIDEO}"
INPUT_FLAGS="-stream_loop -1 -i ${INPUT_VIDEO}"
elif [ -n "$INPUT_WEBCAM" ]; then
echo "Using webcam: ${INPUT_WEBCAM}"
INPUT_FLAGS="-f v4l2 -framerate ${FPS} -video_size 1280x720 -i ${INPUT_WEBCAM}"
fi

ffmpeg -re ${INPUT_FLAGS} \
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