* A C++98 compiler. GCC will do. (I haven't tried Windows, but it
works fine on Linux and OS X, and Movit is not very POSIX-bound.)
* GNU Make.
-* A GPU capable of running GLSL fragment shaders,
- processing floating-point textures, and a few other things (all are
- part of OpenGL 3.0 or newer, although most OpenGL 2.0 cards also
- have what's needed through extensions). If your machine is less than five
- years old _and you have the appropriate drivers_, you're home free.
- GLES3 (for mobile devices) will also work.
+* A GPU capable of running OpenGL 3.0 or newer. GLES3 (for mobile devices)
+ will also work.
* The [Eigen 3], [FFTW3] and [Google Test] libraries. (The library itself
does not depend on the latter, but you probably want to run the unit tests.)
* The [epoxy] library, for dealing with OpenGL extensions on various
Backwards compatibility is fine and all, but sometimes we can do better
by observing that the world has moved on. In particular:
-* It's 2015, so people want to edit HD video.
-* It's 2015, so everybody has a GPU.
-* It's 2015, so everybody has a working C++ compiler.
+* It's 2017, so people want to edit HD video.
+* It's 2017, so everybody has a GPU.
+* It's 2017, so everybody has a working C++ compiler.
(Even Microsoft fixed theirs around 2003!)
-While from a programming standpoint I'd love to say that it's 2015
+While from a programming standpoint I'd love to say that it's 2016
and interlacing does no longer exist, but that's not true (and interlacing,
hated as it might be, is actually a useful and underrated technique for
-bandwidth reduction in broadcast video). Movit will eventually provide
+bandwidth reduction in broadcast video). Movit may eventually provide
limited support for working with interlaced video; it has a deinterlacer,
but cannot currently process video in interlaced form.
Exactly what speeds you can expect is of course highly dependent on
your GPU and the exact filter chain you are running. As a rule of thumb,
you can run a reasonable filter chain (a lift/gamma/gain operation,
-a bit of diffusion, maybe a vignette) at 720p in around 30 fps on a two-year-old
+a bit of diffusion, maybe a vignette) at 720p in around 30 fps on a four-year-old
Intel laptop. If you have a somewhat newer Intel card, you can do 1080p
-video without much problems. And on a mid-range nVidia card of today
+video without much problems. And on a low-range nVidia card of today
(GTX 550 Ti), you can probably process 4K movies directly.
projects / movit / blobdiff