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[chore] Take account of rotation data when calculating full size image dimensions (#3159)
* [chore] Take account of rotation data when calculating full size image dimensions * boobies
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tobi
GitHub
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fd837776e2
commit
697261da53
3 changed files with 74 additions and 59 deletions
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@ -437,54 +437,6 @@ func (res *ffprobeResult) Process() (*result, error) {
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}
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}
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// Preallocate streams to max possible lengths.
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r.audio = make([]audioStream, 0, len(res.Streams))
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r.video = make([]videoStream, 0, len(res.Streams))
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// Convert streams to separate types.
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for _, s := range res.Streams {
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switch s.CodecType {
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case "audio":
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// Append audio stream data to result.
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r.audio = append(r.audio, audioStream{
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stream: stream{codec: s.CodecName},
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})
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case "video":
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var framerate float32
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// Parse stream framerate, bearing in
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// mind that some static container formats
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// (e.g. jpeg) still return a framerate, so
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// we also check for a non-1 timebase (dts).
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if str := s.RFrameRate; str != "" &&
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s.DurationTS > 1 {
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var num, den uint32
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den = 1
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// Check for inequality (numerator / denominator).
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if p := strings.SplitN(str, "/", 2); len(p) == 2 {
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n, _ := strconv.ParseUint(p[0], 10, 32)
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d, _ := strconv.ParseUint(p[1], 10, 32)
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num, den = uint32(n), uint32(d)
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} else {
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n, _ := strconv.ParseUint(p[0], 10, 32)
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num = uint32(n)
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}
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// Set final divised framerate.
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framerate = float32(num / den)
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}
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// Append video stream data to result.
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r.video = append(r.video, videoStream{
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stream: stream{codec: s.CodecName},
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width: s.Width,
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height: s.Height,
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framerate: framerate,
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})
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}
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}
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// Check extra packet / frame information
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// for provided orientation (not always set).
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for _, pf := range res.PacketsAndFrames {
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@ -521,6 +473,61 @@ func (res *ffprobeResult) Process() (*result, error) {
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}
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}
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// Preallocate streams to max possible lengths.
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r.audio = make([]audioStream, 0, len(res.Streams))
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r.video = make([]videoStream, 0, len(res.Streams))
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// Convert streams to separate types.
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for _, s := range res.Streams {
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switch s.CodecType {
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case "audio":
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// Append audio stream data to result.
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r.audio = append(r.audio, audioStream{
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stream: stream{codec: s.CodecName},
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})
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case "video":
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// Determine proper display dimensions,
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// taking account of rotation data.
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width, height := displayDimensions(
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s.Width,
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s.Height,
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r.rotation,
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)
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// Parse stream framerate, bearing in
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// mind that some static container formats
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// (e.g. jpeg) still return a framerate, so
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// we also check for a non-1 timebase (dts).
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var framerate float32
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if str := s.RFrameRate; str != "" &&
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s.DurationTS > 1 {
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var num, den uint32
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den = 1
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// Check for inequality (numerator / denominator).
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if p := strings.SplitN(str, "/", 2); len(p) == 2 {
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n, _ := strconv.ParseUint(p[0], 10, 32)
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d, _ := strconv.ParseUint(p[1], 10, 32)
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num, den = uint32(n), uint32(d)
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} else {
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n, _ := strconv.ParseUint(p[0], 10, 32)
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num = uint32(n)
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}
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// Set final divised framerate.
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framerate = float32(num / den)
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}
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// Append video stream data to result.
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r.video = append(r.video, videoStream{
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stream: stream{codec: s.CodecName},
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width: width,
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height: height,
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framerate: framerate,
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})
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}
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}
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return &r, nil
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}
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@ -223,7 +223,6 @@ func (p *ProcessingMedia) store(ctx context.Context) error {
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width,
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height,
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aspect,
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result.rotation,
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)
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p.media.FileMeta.Small.Width = thumbWidth
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p.media.FileMeta.Small.Height = thumbHeight
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@ -35,15 +35,13 @@ import (
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"github.com/disintegration/imaging"
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)
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// thumbSize returns the dimensions to use for an input
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// image of given width / height, for its outgoing thumbnail.
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// This attempts to maintains the original image aspect ratio.
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func thumbSize(width, height int, aspect float32, rotation int) (int, int) {
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const (
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maxThumbWidth = 512
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maxThumbHeight = 512
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)
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// displayDimensions takes account of the
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// given rotation data to return width and
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// height values as the image will be displayed.
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func displayDimensions(
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width, height int,
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rotation int,
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) (int, int) {
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// If image is rotated by
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// any odd multiples of 90,
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// flip width / height to
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@ -51,9 +49,20 @@ func thumbSize(width, height int, aspect float32, rotation int) (int, int) {
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switch rotation {
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case -90, 90, -270, 270:
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width, height = height, width
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aspect = 1 / aspect
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}
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return width, height
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}
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// thumbSize returns the dimensions to use for an input
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// image of given width / height, for its outgoing thumbnail.
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// This attempts to maintains the original image aspect ratio.
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func thumbSize(width, height int, aspect float32) (int, int) {
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const (
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maxThumbWidth = 512
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maxThumbHeight = 512
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)
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switch {
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// Simplest case, within bounds!
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case width < maxThumbWidth &&
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