Added vid_compress script

1 files changed, 47 insertions, 0 deletions

diff --git a/vid_compress b/vid_compress
new file mode 100755
index 0000000..792f706
--- /dev/null
+++ b/vid_compress
@@ -0,0 +1,47 @@
+#!/usr/bin/env bash
+#
+# This script is intended for provide a "sane" video conversion and
+# recompression. It is useful for recompressing high quality video taken with a
+# camera so less storage is taken.
+#
+# Note: This does not delete the original.
+#
+# Requirements:
+#   ffmpeg
+#   libtheora
+
+new_ext="ogv"
+
+if [[ -z $1 ]]; then
+  echo "Please specify a file to compress"
+  exit 1
+fi
+
+orig="${1}"
+ext_index=""
+
+# Note that we're going backwards (right to left) here so we don't stop early
+# on filenames with multiple periods in their name.
+for (( i=${#orig}; i>0; i-- )); do
+  if [[ ${orig:$i:1} == "." ]]; then
+    # Set where the extension starts so we know what to replace for the new
+    # extension
+    ext_index=$i
+    break
+  fi
+done
+
+# Exit of an extension couldn't be determined
+if [[ ${ext_index} == "" ]]; then
+  echo "Fatal Error: Filename could not be determined for file ${orig}."
+  exit 1
+fi
+
+# Set the new filename for output
+# TODO: Make the extension a little less hard coded
+new=${orig:0:$ext_index}.${new_ext}
+
+echo -e "\bBeginning recompression of ${orig}...."
+# Assume theora/vorbis for now
+ffmpeg -i "${orig}"  -loglevel error -codec:a libvorbis -codec:v libtheora -qscale:a 5 -qscale:v 5 "${new}"
+