X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=README;h=97e3abf639b642876473e1ff78b8a69f7a6dbd1c;hb=12ebccc68426c5eb0296d89e6595cf508ba0cee8;hp=1f8a51e8ff663897615b5f49ed0248f3104f094e;hpb=9449216dd480330d02b6a758dc23d23b43b9133d;p=HTML5TV.git diff --git a/README b/README index 1f8a51e..97e3abf 100644 --- a/README +++ b/README @@ -9,7 +9,7 @@ archive on the web. I envision this as combination of two parts: - * powerful editing suite running locally to annotate video + * powerful video editing suite running locally with annotations * good web interface with sync between slides and video @@ -21,8 +21,9 @@ audio-video slide annotation. So you are assumed to have two files: 1. video file in Ogg Theora format 2. pdf file with slides of presentation + 3. create html file with meta-data -all other meta-data should be stored in git under media/ +All of this is stored under media in directory conference-lecture. If you have different file formats, go ahead and use ffmpeg2theora: @@ -32,12 +33,19 @@ New Theora encoder 1.1 create videos that are better than anything I saw on the web, oggz tool has chop support, so extracting part of video is very easy and possible. +When re-encoding video materials following command line gives more-or-less +resonable video size while inserting keyframes for nice seek: + + ffmpeg2theora -p padma --keyint 1 source_video.flv + VIDEO EDITING -I really don't want to learn another set of tools. I like mplayer, -it works on all platforms I'm interested in (including EeePC and -PlayStation 3) and i all-ready know keyboard shortcuts for it. +I like mplayer, and lerning another set of tools to do video editing +didn't make sense to me. + +It works on all platforms I'm interested in (including EeePC and +PlayStation 3) and I know keyboard shortcuts for it. So, I used it over it's slave protocol which is described on @@ -56,16 +64,17 @@ commands: : $1 eq 'F2' ? move_subtitle( -0.3 ) : $1 eq 'F3' ? move_subtitle( +0.3 ) : $1 eq 'F4' ? next_subtitle + : $1 eq 'F5' ? save_subtitles : $1 eq 'F9' ? add_subtitle : $1 eq 'F12' ? edit_subtitles : warn "CUSTOM $1\n" ; I used to work with semi-professional Sony U-matic video montage back in 1990 -and have grown to love it's work flow which doesn't force you to click +and have grown to love it's workflow which doesn't force you to click all over the screen to do something useful. -In fact, with it, you need 3-5 times more time to finish material, +In fact, with this tool, I need 3-5 times more time to finish material, and with most video editing solutions available in open source, I needed at least 10-20 times more time to do anything useful. @@ -78,14 +87,14 @@ for mplayer and json data for web interface. Effective subtitle editing requires preroll. This is feature from my U-matic days because scopes (U-matic video recorders with magnetic tape) couldn't speed up -instantly, so they would rewind, start AND SHOW YOU FEW SECONDS BEFORE YOUR EDIT. +instantly, so they would rewind, and than start FEW SECONDS BEFORE your edit point. -This is crucial part in implementing following work flow with mplayer: +This was crucial concept for implementing the following workflow with mplayer: 1. press i to record EDL point (start of subtitle) 2. press i to end EDL (end of subtitle) 3. press , to enter subtitle (usually you want to enter subtitle after end of sentence) - 4. preroll 3 seconds before subtitle and review it + 4. mplayer will preroll 3 seconds before subtitle and review it 5. continue subtitling, goto 1 You can also use F9 to add subtitle (nicely located near i key) or F12 to enter vi @@ -100,45 +109,60 @@ However, to sync subtitles with slides, I have introduced magic syntax: which triggers switch to slide 42. +In presentations which are created using Takahashi method (lot of slides with +transitions which follow speaker) you might use just add subtitle to mark +transition to next slide. + HTML5 WEB INTERFACE Web interface using HTML5