1 files changed, 40 insertions, 4 deletions

diff --git a/dot/local/bin/selfie b/dot/local/bin/selfie
index 9fa2a45..ef0adb2 100755
--- a/dot/local/bin/selfie
+++ b/dot/local/bin/selfie
@@ -1,24 +1,60 @@
 #!/bin/bash
 
+video_devices()
+{
+    v4l2-ctl --list-devices | sed -ne 's/^\t//p'
+}
+
 AUDIO_DEVICE=pulse
-VIDEO_DEVICE=/dev/video0
+VIDEO_DEVICE=$(video_devices | head -n1)
+
+[ "$VIDEO_DEVICE" ] || exit 1
 
 MAX_RECORDING_TIME=00:05:00
+[ "$RECORD_FOREVER" ] && unset MAX_RECORDING_TIME
 
 NOW=$(date -Iseconds)
 
 OUTPUT=recording.${NOW//[:T]/.}.avi
 OUTPUT_LINK=recording.latest.avi
 
+XVID_QUALITY=10
+
+info()
+{
+    ffmpeg -hide_banner -f v4l2 -list_formats all -i "$VIDEO_DEVICE"
+    v4l2-ctl --list-formats-ext
+
+    # Such commands as these do nothing.  ffmpeg overrides them.
+    #v4l2-ctl --set-fmt-video=width=800,height=600,pixelformat=MJPG
+    #v4l2-ctl --set-fmt-video=width=1600,height=1200,pixelformat=MJPG
+}
+
+# The higher resolution matches the display, and so fills the screen while
+# recording, but the field of view is larger in the 800x600 resolution, which
+# also supports a higher framerate. Thus 800x600 seems like the "natural"
+# resolution of the camera.  Though, it is still quite low.  :(
+
+V4L2_OPTIONS='-input_format mjpeg -framerate 30 -video_size 800x600'
+# V4L2_OPTIONS='-input_format mjpeg -framerate 15 -video_size 1280x800'
+# V4L2_OPTIONS='-input_format mjpeg -framerate 15 -video_size 1600x1200'
+
+drawtext='text=%{pts\\:hms}:x=5:y=h-lh-5:fontsize=18:fontcolor=white:box=1:boxcolor=0x00000099'
 record()
 {
         local timeout="${MAX_RECORDING_TIME+-t $MAX_RECORDING_TIME}"
         ffmpeg -hide_banner -loglevel error -stats \
-                $timeout -f video4linux2    -i "$VIDEO_DEVICE" \
+                $timeout -f video4linux2 ${V4L2_OPTIONS} -i "$VIDEO_DEVICE" \
                 $timeout -f "$AUDIO_DEVICE" -i default \
-                -c:v rawvideo  -pix_fmt yuv420p  -f xv win \
-                -c:a mp3 \
+    \
+                -c:v rawvideo \
+    -vf scale=iw/2:ih/2,drawtext="${drawtext}" \
+    -pix_fmt yuv420p \
+    -f xv selfie \
+    \
                 -c:v libxvid \
+                -c:a libmp3lame \
+    -q:v $XVID_QUALITY \
                 "$1"
 }