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authorcaleb.mabry.15@cnu.edu <caleb.mabry.15@cnu.edu>2022-03-12 22:07:48 -0500
committercaleb.mabry.15@cnu.edu <caleb.mabry.15@cnu.edu>2022-03-12 22:07:48 -0500
commit39da04dc796b635b43879d285bc9d2c2aabc8761 (patch)
treeed72215dafba14fec002c1899e38f466bb6aae7a /webAO/utils/calculateApngLength.js
parent1296cecb0690bbe70c109693625cb424297a0b40 (diff)
Lint
Diffstat (limited to 'webAO/utils/calculateApngLength.js')
-rw-r--r--webAO/utils/calculateApngLength.js28
1 files changed, 14 insertions, 14 deletions
diff --git a/webAO/utils/calculateApngLength.js b/webAO/utils/calculateApngLength.js
index 86c2073..932f581 100644
--- a/webAO/utils/calculateApngLength.js
+++ b/webAO/utils/calculateApngLength.js
@@ -1,25 +1,25 @@
- /**
+/**
* Adds up the chunk delays to find out how long a APNG is
* @param {data} apngFile the APNG data
*/
const calculateApngLength = (apngFile) => {
const d = new Uint8Array(apngFile);
- // https://wiki.mozilla.org/APNG_Specification#.60fcTL.60:_The_Frame_Control_Chunk
- let duration = 0;
- for (var i = 0; i < d.length; i++) {
- // Find fcTL header (66 63 54 4C)
- if (d[i] === 0x66
+ // https://wiki.mozilla.org/APNG_Specification#.60fcTL.60:_The_Frame_Control_Chunk
+ let duration = 0;
+ for (let i = 0; i < d.length; i++) {
+ // Find fcTL header (66 63 54 4C)
+ if (d[i] === 0x66
&& d[i + 1] === 0x63
&& d[i + 2] === 0x54
&& d[i + 3] === 0x4C) {
- // numerator and denominator
- let delay = ((d[i + 21] / d[i + 23]) * 1000)
+ // numerator and denominator
+ const delay = ((d[i + 21] / d[i + 23]) * 1000);
- // minimum is 100ms
- duration += delay < 100 ? 100 : delay;
- }
- }
- console.debug(duration);
- return duration * 10;
+ // minimum is 100ms
+ duration += delay < 100 ? 100 : delay;
+ }
+ }
+ console.debug(duration);
+ return duration * 10;
};
export default calculateApngLength;