tConvert animations to mp4 with ffmpeg if available - Granular.jl - Julia package for granular dynamics simulation
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---
(DIR) commit 0fc41a6f811b5970151c7960686a4e6d1e9603bc
(DIR) parent eb7cdca84697284acd902a7c63846255851291f2
(HTM) Author: Anders Damsgaard <anders@adamsgaard.dk>
Date: Mon, 7 May 2018 16:06:13 -0400
Convert animations to mp4 with ffmpeg if available
Diffstat:
M src/io.jl | 16 +++++++++++++++-
1 file changed, 15 insertions(+), 1 deletion(-)
---
(DIR) diff --git a/src/io.jl b/src/io.jl
t@@ -1067,7 +1067,8 @@ from the shell using the supplied `pvpython` argument.
* `images::Bool`: render images to disk (default: true)
* `gif::Bool`: merge images as GIF and save to disk (default: false, requires
`images=true`)
-* `animation::Bool`: render animation as AVI to disk (default: false)
+* `animation::Bool`: render animation as movie to disk (default: false). If
+ ffmpeg is available on the system, the `.avi` file is converted to `.mp4`.
* `trim::Bool`: trim images in animated sequence (default: true)
* `reverse::Bool`: if `images=true` additionally render reverse-animated gif
(default: false)
t@@ -1084,6 +1085,19 @@ function render(simulation::Simulation; pvpython::String="pvpython",
try
run(`$(pvpython) $(simulation.id)/$(simulation.id).py`)
+ if animation
+ try
+ run(`ffmpeg -i $(simulation.id)/$(simulation.id).avi
+ -vf scale='trunc\(iw/2\)\*2:trunc\(ih/2\)\*2'
+ -c:v libx264 -profile:v high -pix_fmt yuv420p
+ -g 30 -r 30 -y
+ $(simulation.id)/$(simulation.id).mp4`)
+ if isfile("$(simulation.id)/$(simulation.id).mp4")
+ rm("$(simulation.id)/$(simulation.id).avi")
+ end
+ end
+ end
+
# if available, use imagemagick to create gif from images
if images && gif
try