The following is a general strategy.
+
+
+
+
+
+{section: Editing}
+
+Ideally you'll want a real video editing system. In a pinch you can use ffmpeg, but it's a pain in the butt. For free, Blender is pretty good, but the learning curve is terrible; adesmet may be able to offer help. Sony Vegas is quite good, if expensive. Ivan C (student hourly) or johnkn may be able to help.
+
+General work to be done:
+
+1: Trim the video to the talk itself. Keep questions at the end if appropriate.
+2: Place video of speaker and the slides side-by-side. You might need to get the slides from the original file if video of the slides isn't available or is low quality. Crop the speaker fairly tightly so they are as large as possible but always in frame. The final ratio should be reasonably common, 4:3 or 16:9 are good choices
+3: Adjust the audio. Shoot for the loudest moments just barely clipping and generally in the -5 to -10 dB range.
+4: Target the lowest resolution that the slides are comfortably readable in. Try 640×360.
+5: Do _not_ add logos that are present through the entire video; they're distracting and unnecessary.
+
+Here is a good example. Don't do the logos in the top left and lower right.
+{image: http://research.cs.wisc.edu/htcondor/tutorials/videos/2014/Intro_To_Using_HTCondor.jpg}
+You can see the full video at http://research.cs.wisc.edu/htcondor/tutorials/videos/2014/Intro_To_Using_HTCondor.html
+
+
+Bonus
+*: Add a title screen. The simplest option is to use the first slide of the talk. Do a very quick fade (1 second?) from the title to the actual presentation. For a bonus, have the audio of the speaker start a tiny bit before the fade starts (0.5 seconds?)
+*:: You might want some logos for a title:
+*::: HTCondor: http://research.cs.wisc.edu/htcondor/logos/htcondor_logos/ http://research.cs.wisc.edu/htcondor/logos/
+*::: CHTC http://pages.cs.wisc.edu/~bgore/CHTC_Logos/
+*: Add a closing. At the very least do a quick fade black. Maybe fade to one of our logos and a URL?
+*: Run a noise reduction filter over the audio. It's a rare environment without at least some background hiss that can be removed. Audacity's is pretty good if you're willing to spend time fiddling with the knobs.
+*: Maybe crop the slides. You'll need to check them all, but you can probably crop off any constant logos off the bottom. Only bother with if it will potentially let you make some other part of the video larger.
+*: [Very time consuming] Crop the speaker even tighter and track them as they move around.
+
+
+
+{subsection: Editing with ffmpeg}
+
+This is probably unnecessary if you have a full blown video editor, but occasionally quick command line tools are useful.
+
+{subsubsection: Lossless Trimming}
+
+You can use ffmpeg to do lossless trimming of files (say, to break a single video into multiple videos, or to trim off dead time). {link: http://askubuntu.com/questions/35605/splitting-an-mp4-file source }
+
+{code}
+ffmpeg -ss START -t LENGTH -i ORIGINALFILE.mp4 -codec copy OUTFILE.mp4
+{endcode}
+
+{subsubsection: Cropping}
+
+You can also crop the video with ffmpeg, which may be useful if part of the video feel is always empty (say, the video is wide enough to handle a 16:9 slide, but only 4:3 slides are shown. This is lossy, so you'll probably want to merge it into the conversion step. {link: https://video.stackexchange.com/questions/4563/how-can-i-crop-a-video-with-ffmpeg source}
+
+{code}
+ffmpeg -i ORIGINALFILE.mp4 -filter:v "crop=out_w:out_h:x:y" OUTFILE.mp4
+{endcode}
+
+
+
+
+
{section: Streaming}
{subsection: Creating the video files}
@@ -44,6 +102,11 @@
ffmpeg -i input.mp4 -ss 0 -vframes 1 input.jpg
{endcode}
+
+
+
+
+
{section: Downloads}
Put the files up for download! There is no reason to not just offer for download the exact same files created for streaming (below).
@@ -101,30 +164,3 @@
{endcode}
Be sure to also include links to download the file and to the slides.
-
-{section: Editing with ffmpeg}
-
-This is probably unnecessary if you have a full blown video editor, but occasionally quick command line tools are useful.
-
-{subsection: Lossless Trimming}
-
-You can use ffmpeg to do lossless trimming of files (say, to break a single video into multiple videos, or to trim off dead time). {link: http://askubuntu.com/questions/35605/splitting-an-mp4-file source }
-
-{code}
-ffmpeg -ss START -t LENGTH -i ORIGINALFILE.mp4 -codec copy OUTFILE.mp4
-{endcode}
-
-{subsection: Cropping}
-
-You can also crop the video with ffmpeg, which may be useful if part of the video feel is always empty (say, the video is wide enough to handle a 16:9 slide, but only 4:3 slides are shown. This is lossy, so you'll probably want to merge it into the conversion step. {link: https://video.stackexchange.com/questions/4563/how-can-i-crop-a-video-with-ffmpeg source}
-
-{code}
-ffmpeg -i ORIGINALFILE.mp4 -filter:v "crop=out_w:out_h:x:y" OUTFILE.mp4
-{endcode}
-
-{section: Branding / Logos }
-
-You might want some logos:
-
-*: HTCondor: http://research.cs.wisc.edu/htcondor/logos/htcondor_logos/ http://research.cs.wisc.edu/htcondor/logos/
-*: CHTC http://pages.cs.wisc.edu/~bgore/CHTC_Logos/
