Add decode+edit encode+stream.

2 files changed, 49 insertions, 0 deletions

diff --git a/bin/decode+edit b/bin/decode+edit
new file mode 100755
index 0000000..3413e01
--- /dev/null
+++ b/bin/decode+edit
@@ -0,0 +1,20 @@
+#!/bin/sh
+
+set -e
+
+ITERATIONS=${1-1}
+
+SIZE=640x360
+
+MOVIE=../src/omni/show0/earth.mp4
+LOGO=../../content/icon_small.png
+
+TMPMOVIE=../tmp/omni/show0/earth.yuv
+
+mkdir -p $(dirname "$TMPMOVIE")
+
+# based on http://video.stackexchange.com/a/16933
+ffmpeg -threads auto -y \
+ -f lavfi -i "movie=filename=$MOVIE:loop=$ITERATIONS, setpts=N/(FRAME_RATE*TB), scale=$SIZE" \
+ -i "$LOGO" -filter_complex 'overlay=main_w-overlay_w-20:main_h-overlay_h-20' \
+ -an -f yuv4mpegpipe "$TMPMOVIE"
diff --git a/bin/encode+stream b/bin/encode+stream
new file mode 100755
index 0000000..e23b8a1
--- /dev/null
+++ b/bin/encode+stream
@@ -0,0 +1,29 @@
+#!/bin/sh
+
+set -e
+
+HOST=${1:-morla}
+if [ "$HOST" = "$(hostname --short)" ]; then
+	IP=127.0.0.1
+else
+	IP=$(host "$HOST" | grep -Po 'address \K\S+')
+fi
+
+PORT=${2:-5004}
+
+BITRATE=500000
+
+TMPMOVIE=../tmp/omni/show0/earth.yuv
+
+# based on http://www.webmproject.org/docs/encoder-parameters/
+#   example "Real-time CBR Encoding and Streaming"
+# + Drop frames, aggressively treat as static, and use fastest cpu
+ffmpeg -threads auto -re \
+ -stream_loop -1 -i "$TMPMOVIE" \
+ -codec:v vp8 -quality realtime -deadline realtime -cpu-used 15 \
+ -b:v "$BITRATE" -minrate "$BITRATE" -maxrate "$BITRATE" \
+ -undershoot-pct 95 -bufsize $((6000*BITRATE/1000)) -rc_init_occupancy $((4000*BITRATE/1000)) \
+ -max-intra-rate 0 \
+ -qmin 4 -qmax 56 \
+ -static-thresh 500 -skip_threshold 50 \
+ -an -f rtp "rtp://$IP:$PORT?pkt_size=1200"