From 9783831e37ca5718e20259be70c23e229d3583c4 Mon Sep 17 00:00:00 2001
From: Mattias Andrée <maandree@kth.se>
Date: Sat, 14 Jan 2017 10:05:50 +0100
Subject: Fix offset bug in blind-reverse and add example
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Signed-off-by: Mattias Andrée <maandree@kth.se>
---
 examples/reverse/Makefile | 32 ++++++++++++++++++++++++++++++++
 examples/split/Makefile   |  2 +-
 2 files changed, 33 insertions(+), 1 deletion(-)
 create mode 100644 examples/reverse/Makefile

(limited to 'examples')

diff --git a/examples/reverse/Makefile b/examples/reverse/Makefile
new file mode 100644
index 0000000..5112f31
--- /dev/null
+++ b/examples/reverse/Makefile
@@ -0,0 +1,32 @@
+INPUT_VIDEO = <please select a video file as INPUT_VIDEO>
+TEMPFILE = tmp.uivf
+
+DRAFT = -d
+# Useful for better performance when not working
+# with colours or not caring about colours.
+
+FFMPEG_ARGS = -c:v libx264 -preset veryslow -crf 0 -pix_fmt yuv444p
+#             ↑~~~~~~~~~~~ ↑~~~~~~~~~~~~~~~ ↑~~~~~~~~~~~~~~~~~~~~~~
+#             │            │                │
+#             │            │                └──── Lossless
+#             │            │
+#             │            └──── High compression
+#             │
+#             └──── H.264, a lossless-capable codec
+
+START = 20
+END = 40
+
+reversed.mkv: $(TEMPFILE)
+	framerate=$$(ffprobe -v quiet -show_streams -select_streams v - < "$(INPUT_VIDEO)" | \
+	             grep '^r_frame_rate=' | cut -d = -f 2) && \
+	../../blind-reverse $(TEMPFILE) | ../../blind-to-video $(DRAFT) $${framerate} $(FFMPEG_ARGS) reversed.mkv
+
+$(TEMPFILE): $(INPUT_VIDEO)
+	../../blind-from-video -L $(DRAFT) "$(INPUT_VIDEO)" - | \
+	../../blind-split -L /dev/null $(START) $(TEMPFILE) $(END)
+
+clean:
+	-rm reversed.mkv  $(TEMPFILE)
+
+.PHONY: clean
diff --git a/examples/split/Makefile b/examples/split/Makefile
index 8e96b9b..4f3038c 100644
--- a/examples/split/Makefile
+++ b/examples/split/Makefile
@@ -1,4 +1,4 @@
-INPUT_VIDEO = <please select a video file as INPUT_VIDEO>
+INPUT_VIDEO = <please select a video file as INPUT_VIDEO>
 
 SHELL = bash
 # We need Bash's process substitution operator >()
-- 
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