From b891728d1845ba129d7b61a25900d3f31a2ebc4a Mon Sep 17 00:00:00 2001
From: Steven Robertson <steven@strobe.cc>
Date: Sat, 2 Jun 2012 10:09:38 -0700
Subject: [PATCH] Add some helper scripts

---
 scripts/convert.sh    | 17 +++++++++++++++++
 scripts/downsample.sh | 15 +++++++++++++++
 scripts/encode.sh     | 19 +++++++++++++++++++
 scripts/graph.py      |  8 ++++++++
 4 files changed, 59 insertions(+)
 create mode 100755 scripts/convert.sh
 create mode 100755 scripts/downsample.sh
 create mode 100755 scripts/encode.sh
 create mode 100644 scripts/graph.py

diff --git a/scripts/convert.sh b/scripts/convert.sh
new file mode 100755
index 0000000..0d96d59
--- /dev/null
+++ b/scripts/convert.sh
@@ -0,0 +1,17 @@
+#!/bin/zsh
+
+convert () {
+    dir=$1
+    [ -e $dir/NFRAMES ] || return
+    [ -e $dir/COMPLETE -a -e ref/$dir.ts ] && return
+    NFRAMES="$(cat $dir/NFRAMES)"
+    for i in `seq 1 $NFRAMES`
+        [ -e $dir/$(printf '%05d' $i).jpg ] || return
+    mencoder -mf fps=23.976 "mf://$dir/*.jpg" -ovc x264  \
+        -x264encopts profile=high:bluray-compat:aud:crf=15:ref=4:level=4.1:threads=0 \
+        -o $dir/ref.avi && \
+    gst-launch-0.10 filesrc location=${dir}/ref.avi ! avidemux ! h264parse \
+        ! mpegtsmux ! filesink location=ref/${dir}.ts && rm ${dir}/ref.avi && \
+    touch $dir/COMPLETE
+}
+for dir in `ls --sort time -r | grep -v '.sh'`; do echo $dir; convert $dir; sleep 0.1 || break; done
diff --git a/scripts/downsample.sh b/scripts/downsample.sh
new file mode 100755
index 0000000..eed9c3c
--- /dev/null
+++ b/scripts/downsample.sh
@@ -0,0 +1,15 @@
+#!/bin/zsh
+
+encode () {
+    [ ! -e "${dir}/ref.avi" ] && return
+    [ -e "downsampled/${dir}.ts" -a \
+         "downsampled/${dir}.ts" -nt "${dir}/ref.avi" ] && return
+    ffmpeg -y -i $dir/ref.avi -vcodec libx264 -q 20 -g 360 -x264opts \
+crf=20:bluray-compat:aud:ref=4:level=4.1:threads=0:scenecut=-1:\
+vbv_maxrate=40000:vbv_bufsize=30000:vbv_init=0.95:nr=100 \
+         -preset slow -profile high -vf scale=-1:540 /tmp/enc.avi && \
+    gst-launch-0.10 filesrc location=/tmp/enc.avi ! avidemux ! h264parse \
+        ! mpegtsmux ! filesink location=downsampled/${dir}.ts && rm /tmp/enc.avi
+}
+
+for dir in `ls --sort time -r | grep -v '.sh'`; do encode $dir || break; done
diff --git a/scripts/encode.sh b/scripts/encode.sh
new file mode 100755
index 0000000..d4e42e8
--- /dev/null
+++ b/scripts/encode.sh
@@ -0,0 +1,19 @@
+#!/bin/zsh
+
+encode () {
+    echo $dir unpackt/${dir}-00.idx
+    [ ! -e "${dir}/ref.avi" ] && return
+    [ -e "unpackt/${dir}-00.idx" -a \
+         "unpackt/${dir}-00.idx" -nt "${dir}/ref.avi" ] && return
+    echo $dir unpackt/${dir}-00.idx
+    ffmpeg -y -i $dir/ref.avi -vcodec libx264 -q 20 -g 360 -x264opts \
+crf=21:bluray-compat:aud:ref=4:level=4.1:threads=0:scenecut=-1:\
+vbv_maxrate=40000:vbv_bufsize=30000:vbv_init=0.95:nr=100 \
+         -preset slow -profile high /tmp/enc.avi && \
+    gst-launch-0.10 filesrc location=/tmp/enc.avi ! avidemux ! h264parse \
+        ! mpegtsmux ! filesink location=unpackt/${dir}.ts && rm /tmp/enc.avi #&& \
+    #ts_split /tmp/${dir}.ts unpackt/ && rm /tmp/${dir}.ts
+}
+
+for dir in `ls --sort time -r | grep -v '.sh'`; do encode $dir || break; done
+
diff --git a/scripts/graph.py b/scripts/graph.py
new file mode 100644
index 0000000..8c74fcc
--- /dev/null
+++ b/scripts/graph.py
@@ -0,0 +1,8 @@
+import os, sys
+
+print 'digraph {'
+for i in os.listdir(sys.argv[1] if len(sys.argv) > 1 else '.'):
+    parts = i.rsplit('.', 1)[0].split('=')
+    print ' -> '.join(parts[:2])
+    # TODO: add label (optional section 3)
+print '}'