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mediaflix
preview-generator
Commits
9ce6b316
Commit
9ce6b316
authored
5 years ago
by
Janne Mareike Koschinski
Browse files
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Plain Diff
Added early spritesheet generation
parent
a33d733f
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Changes
2
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2 changed files
src/ffmpeg_api/api.rs
+24
-11
24 additions, 11 deletions
src/ffmpeg_api/api.rs
src/main.rs
+91
-64
91 additions, 64 deletions
src/main.rs
with
115 additions
and
75 deletions
src/ffmpeg_api/api.rs
+
24
−
11
View file @
9ce6b316
...
@@ -36,17 +36,30 @@ impl<'a> AVFormatContext {
...
@@ -36,17 +36,30 @@ impl<'a> AVFormatContext {
}
}
pub
fn
streams
(
&
self
)
->
Vec
<
AVStream
>
{
pub
fn
streams
(
&
self
)
->
Vec
<
AVStream
>
{
return
unsafe
{
Vec
::
from
(
unsafe
{
std
::
slice
::
from_raw_parts
(
(
*
self
.base
)
.streams
,
(
*
self
.base
)
.nb_streams
as
usize
,
)
}
)
.iter
()
.map
(|
stream
|
{
AVStream
::
new
(
unsafe
{
(
*
stream
)
.as_mut
()
}
.expect
(
"not null"
),
&
self
)
})
.collect
()
}
pub
fn
find_stream
<
P
>
(
&
self
,
predicate
:
P
)
->
Option
<
AVStream
>
where
P
:
FnMut
(
&
AVStream
)
->
bool
{
Vec
::
from
(
unsafe
{
std
::
slice
::
from_raw_parts
(
std
::
slice
::
from_raw_parts
(
(
*
self
.base
)
.streams
,
(
*
self
.base
)
.streams
,
(
*
self
.base
)
.nb_streams
as
usize
,
(
*
self
.base
)
.nb_streams
as
usize
,
)
)
}
}
.iter
()
)
.iter
()
.map
(|
stream
|
{
.map
(|
stream
|
{
AVStream
::
new
(
unsafe
{
(
*
stream
)
.as_mut
()
}
.expect
(
"not null"
),
&
self
)
AVStream
::
new
(
unsafe
{
(
*
stream
)
.as_mut
()
}
.expect
(
"not null"
),
&
self
)
})
})
.find
(
predicate
)
.collect
();
}
}
pub
fn
read_frame
(
&
/*TODO:mut*/
self
,
packet
:
&
mut
AVPacket
)
->
Result
<
(),
failure
::
Error
>
{
pub
fn
read_frame
(
&
/*TODO:mut*/
self
,
packet
:
&
mut
AVPacket
)
->
Result
<
(),
failure
::
Error
>
{
...
...
This diff is collapsed.
Click to expand it.
src/main.rs
+
91
−
64
View file @
9ce6b316
...
@@ -2,6 +2,7 @@ pub(crate) mod ffmpeg_api;
...
@@ -2,6 +2,7 @@ pub(crate) mod ffmpeg_api;
use
crate
::
ffmpeg_api
::
enums
::
*
;
use
crate
::
ffmpeg_api
::
enums
::
*
;
use
crate
::
ffmpeg_api
::
api
::
*
;
use
crate
::
ffmpeg_api
::
api
::
*
;
use
image
::{
ImageBuffer
,
RgbImage
};
fn
main
()
->
Result
<
(),
std
::
io
::
Error
>
{
fn
main
()
->
Result
<
(),
std
::
io
::
Error
>
{
let
mut
before
=
std
::
time
::
SystemTime
::
now
();
let
mut
before
=
std
::
time
::
SystemTime
::
now
();
...
@@ -15,7 +16,16 @@ fn main() -> Result<(), std::io::Error> {
...
@@ -15,7 +16,16 @@ fn main() -> Result<(), std::io::Error> {
panic!
(
"Could not open video input: {:?}"
,
error
)
panic!
(
"Could not open video input: {:?}"
,
error
)
});
});
for
mut
stream
in
avformat_context
.streams
()
{
let
x
=
5
;
let
y
=
5
;
let
mut
spritesheet
:
RgbImage
=
ImageBuffer
::
new
(
160
*
x
,
90
*
x
);
let
mut
stream
:
AVStream
=
avformat_context
.find_stream
(|
stream
|
{
stream
.codec_parameters
()
.codec_type
()
==
AVMediaType
::
Video
})
.unwrap_or_else
(||
{
panic!
(
"Could not find video stream"
)
});
stream
.set_discard
(
AVDiscard
::
NonKey
);
stream
.set_discard
(
AVDiscard
::
NonKey
);
let
codec_parameters
=
stream
.codec_parameters
();
let
codec_parameters
=
stream
.codec_parameters
();
...
@@ -61,7 +71,7 @@ fn main() -> Result<(), std::io::Error> {
...
@@ -61,7 +71,7 @@ fn main() -> Result<(), std::io::Error> {
let
mut
scale_context
=
SwsContext
::
new
();
let
mut
scale_context
=
SwsContext
::
new
();
while
avformat_context
.read_frame
(
&
mut
packet
)
.is_ok
()
&&
i
<
16
{
while
avformat_context
.read_frame
(
&
mut
packet
)
.is_ok
()
{
if
packet
.stream_index
()
==
stream
.index
()
{
if
packet
.stream_index
()
==
stream
.index
()
{
codec_context
.in_packet
(
&
mut
packet
)
.unwrap_or_else
(|
error
|
{
codec_context
.in_packet
(
&
mut
packet
)
.unwrap_or_else
(|
error
|
{
panic!
(
"Could not load packet: {:?}"
,
error
)
panic!
(
"Could not load packet: {:?}"
,
error
)
...
@@ -84,22 +94,39 @@ fn main() -> Result<(), std::io::Error> {
...
@@ -84,22 +94,39 @@ fn main() -> Result<(), std::io::Error> {
println!
(
"Processing Time: {:#?}"
,
before
.elapsed
()
.unwrap
());
println!
(
"Processing Time: {:#?}"
,
before
.elapsed
()
.unwrap
());
before
=
std
::
time
::
SystemTime
::
now
();
before
=
std
::
time
::
SystemTime
::
now
();
image
::
save_buffer
(
let
current
:
RgbImage
=
ImageBuffer
::
from_raw
(
160
,
90
,
output_frame
.data
(
0
)
.to_vec
())
.unwrap
();
format!
(
"/home/janne/Workspace/justflix/data/test/image_{}.png"
,
i
),
output_frame
.data
(
0
),
image
::
imageops
::
overlay
(
output_frame
.width
()
as
u32
,
&
mut
spritesheet
,
output_frame
.height
()
as
u32
,
&
current
,
image
::
ColorType
::
Rgb8
,
(
i
%
x
)
*
160
,
)
.unwrap
();
((
i
/
x
)
%
y
)
*
90
,
);
println!
(
"Writing Time: {:#?}"
,
before
.elapsed
()
.unwrap
());
println!
(
"Writing Time: {:#?}"
,
before
.elapsed
()
.unwrap
());
before
=
std
::
time
::
SystemTime
::
now
();
before
=
std
::
time
::
SystemTime
::
now
();
i
+=
1
;
i
+=
1
;
if
i
%
(
x
*
y
)
==
0
{
spritesheet
.save
(
format!
(
"/home/janne/Workspace/justflix/data/spritesheets/spritesheet_{}.png"
,
(
i
/
(
x
*
y
))
-
1
))
.unwrap_or_else
(|
error
|
{
panic!
(
"Could not write spritesheet: {}"
,
error
)
});
spritesheet
=
ImageBuffer
::
new
(
160
*
x
,
90
*
x
);
println!
(
"Writing Time: {:#?}"
,
before
.elapsed
()
.unwrap
());
before
=
std
::
time
::
SystemTime
::
now
();
}
}
}
}
}
}
}
}
if
i
%
(
x
*
y
)
!=
0
{
spritesheet
.save
(
format!
(
"/home/janne/Workspace/justflix/data/spritesheets/spritesheet_{}.png"
,
i
/
(
x
*
y
)))
.unwrap_or_else
(|
error
|
{
panic!
(
"Could not write spritesheet: {}"
,
error
)
});
println!
(
"Writing Time: {:#?}"
,
before
.elapsed
()
.unwrap
());
before
=
std
::
time
::
SystemTime
::
now
();
}
}
}
Ok
(())
Ok
(())
...
...
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Click to expand it.
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