From e3b01e2aa88338672050f085747439374d67a89d Mon Sep 17 00:00:00 2001 From: Andrew Weaver Date: Mon, 17 Apr 2017 13:40:18 -0400 Subject: [PATCH 1/3] add compare fingerprints --- index.html | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/index.html b/index.html index e222463..0e81a19 100644 --- a/index.html +++ b/index.html @@ -1947,6 +1947,27 @@ e.g.: ffmpeg -f concat -safe 0 -i mylist.txt -c copy output_file + + + +
From d30741e378505a938d7231f7e93603682a690b74 Mon Sep 17 00:00:00 2001 From: Andrew Weaver Date: Mon, 17 Apr 2017 14:06:22 -0400 Subject: [PATCH 2/3] add generate fingerprint wording --- index.html | 31 +++++++++++++++++++++++++++---- 1 file changed, 27 insertions(+), 4 deletions(-) diff --git a/index.html b/index.html index 0e81a19..c8ff874 100644 --- a/index.html +++ b/index.html @@ -1953,13 +1953,14 @@ e.g.: ffmpeg -f concat -safe 0 -i mylist.txt -c copy output_file
-

Compare two input files for content similarity using their perceptual hashes

+

Compare two video files for content similarity using perceptual hashing

ffmpeg -i input_one -i input_two -filter_complex signature=detectmode=full:nb_inputs=2 -f null -

ffmpeg
starts the command
-
-i input_one -i input_two
Assigns the input files
-
-filter_complex
Enables using more than one input file to the filter
-
signature=detectmode=full:nb_inputs=2
Applies the signature filter to the inputs in 'full' mode. The other option is 'fast'. The nb_inputs=2 portion tells the filter to expect two input files
+
-i input_one -i input_two
assigns the input files
+
-filter_complex
enables using more than one input file to the filter
+
signature=detectmode=full
Applies the signature filter to the inputs in 'full' mode. The other option is 'fast'.
+
nb_inputs=2
tells the filter to expect two input files
-f null -
Sets the output of FFmpeg to a null stream (since we are not creating a transcoded file, just viewing metadata).

@@ -1968,6 +1969,28 @@ e.g.: ffmpeg -f concat -safe 0 -i mylist.txt -c copy output_file
+ + + + +
From b995fb05c5e48a726f950f45b13902eea530d89f Mon Sep 17 00:00:00 2001 From: Andrew Weaver Date: Mon, 17 Apr 2017 14:27:58 -0400 Subject: [PATCH 3/3] FFmpeg -> ffmpeg --- index.html | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/index.html b/index.html index c8ff874..a50a1d4 100644 --- a/index.html +++ b/index.html @@ -1961,7 +1961,7 @@ e.g.: ffmpeg -f concat -safe 0 -i mylist.txt -c copy output_file-filter_complex
enables using more than one input file to the filter
signature=detectmode=full
Applies the signature filter to the inputs in 'full' mode. The other option is 'fast'.
nb_inputs=2
tells the filter to expect two input files
-
-f null -
Sets the output of FFmpeg to a null stream (since we are not creating a transcoded file, just viewing metadata).
+
-f null -
Sets the output of ffmpeg to a null stream (since we are not creating a transcoded file, just viewing metadata).

@@ -1982,8 +1982,8 @@ e.g.: ffmpeg -f concat -safe 0 -i mylist.txt -c copy output_fileffmpeg -i input
starts the command using your input file
-vf signature=format=xml
applies the signature filter to the input file and sets the output format for the fingerprint to xml
filename="output.xml"
sets the output for the signature filter
-
-an
tells FFmpeg to ignore the audio stream of the input file
-
-f null -
Sets the FFmpeg output to a null stream (since we are only interested in the output generated by the filter).
+
-an
tells ffmpeg to ignore the audio stream of the input file
+
-f null -
Sets the ffmpeg output to a null stream (since we are only interested in the output generated by the filter).