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Add param transpose to opts #15

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Add param transpose to opts #15

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8 changes: 8 additions & 0 deletions Readme.md
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Original file line number Diff line number Diff line change
Expand Up @@ -46,6 +46,14 @@ gify('out.mp4', 'out.gif', opts, function(err){
- `rate` frame rate [10]
- `start` start position in seconds or hh:mm:ss[.xxx] [0]
- `duration` length of video to convert in seconds or hh:mm:ss[.xxx] [auto]
- `transpose` rotation of video default [transpose=0]
```
The possible values ​​to `transpose` are:
0=90CounterCLockwise and Vertical Flip(default)
1=90Clockwise
2=90CounterClockwise
3=90Clockwise and Vertical Flip
```

# License

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10 changes: 9 additions & 1 deletion index.js
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Expand Up @@ -25,7 +25,12 @@ module.exports = gify;
* - `rate` frame rate [10]
* - `start` start position in seconds [0]
* - `duration` length of video to convert [auto]
*
* - `transpose` rotation of video default [transpose=0]
* the possible values ​​to `transpose` are:
* 0=90CounterCLockwise and Vertical Flip (default)
* 1=90Clockwise
* 2=90CounterClockwise
* 3=90Clockwise and Vertical Flip
* @param {Type} name
* @return {Type}
* @api public
Expand All @@ -48,6 +53,7 @@ function gify(input, output, opts, fn) {
var h = opts.height;
var rate = opts.rate || 10;
var delay = opts.delay || 'auto';
var transpose = opts.transpose || 'transpose=0';

// auto delay
if ('auto' == delay) {
Expand All @@ -67,6 +73,7 @@ function gify(input, output, opts, fn) {

// escape paths
input = escape([input]);
transpose = escape([transpose])
output = escape([output]);
// normalize
if (process.platform === 'win32') {
Expand All @@ -87,6 +94,7 @@ function gify(input, output, opts, fn) {
// convert to gif
var cmd = ['ffmpeg'];
cmd.push('-i', input);
cmd.push('-vf', transpose);
cmd.push('-filter:v', 'scale=' + scale);
cmd.push('-r', String(rate));
if (opts.start) cmd.push('-ss', String(opts.start));
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