Add ff_cropdetect - detect -vf crop parameters

diff --git a/readme.txt b/readme.txt
index 8c9a39d474e3d79963f2c21e8161febf1e1d394d..918caecaf106ac57dd10af7f257faf1a3b2e6d3f 100644 (file)
--- a/readme.txt
+++ b/readme.txt
@@ -102,10 +102,12 @@ video
 
 Using ffmpeg:
 ff_catvideo - concatenate few video files into one.
+ff_cropdetect - detect -vf crop parameters.
 ff_encode - 1 and 2-pass encoding using different codecs.
 
 Using mplayer/mencoder:
 m_catvideo - concatenate few video files into one.
+m_cropdetect - detect -vf crop parameters.
 m_encode - 1, 2 and 3-pass encoding using different codecs.
 m_fix-avi-index - fix an AVI index.
 m_recode2mp3 - recode an audio stream to mp3, leaving video stream intact.

diff --git a/video/ff_cropdetect b/video/ff_cropdetect
new file mode 100755 (executable)
index 0000000..59a2c40
--- /dev/null
+++ b/video/ff_cropdetect
@@ -0,0 +1,8 @@
+#! /bin/sh
+
+if [ -z "$1" ]; then
+   echo "Usage: $0 input.avi"
+   exit 1
+fi
+
+exec ffmpeg -i "$1" -vf cropdetect -an -f rawvideo -y /dev/null