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Invalidate transitions when an image media item duration changes.

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Change-Id: I3cff920ef629df49dcfcb63065afeeb47a649287
This commit is contained in:
Gil Dobjanschi
2010-11-11 11:55:19 -08:00
parent a71f52bf32
commit 34fad15699
2 changed files with 111 additions and 60 deletions
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113
media/java/android/media/videoeditor/MediaImageItem.java
View File

@@ -17,6 +17,7 @@
package android.media.videoeditor;
import java.io.IOException;
import java.util.List;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
@@ -161,6 +162,57 @@ public class MediaImageItem extends MediaItem {
* @param durationMs The duration of the image in the storyboard timeline
*/
public void setDuration(long durationMs) {
// Invalidate the beginning and end transitions if necessary
if (mBeginTransition != null) {
final long transitionDurationMs = mBeginTransition.getDuration();
// The begin transition must be invalidated if it overlaps with
// an effect. To optimize this code we could invalidate the
// begin transition only for a Ken Burns effect (color effects
// should not affect the begin transition) however when new effects
// will be added this code would have to be modified... so we
// opted to always invalidate the transition if there is an
// overlap.
final List<Effect> effects = getAllEffects();
for (Effect effect : effects) {
// Check if the effect overlaps with the begin transition
if (effect.getStartTime() < transitionDurationMs) {
mBeginTransition.invalidate();
break;
}
}
}
if (mEndTransition != null) {
final long transitionDurationMs = mEndTransition.getDuration();
// The end transition must be invalidated if it overlaps with
// an effect
final List<Effect> effects = getAllEffects();
for (Effect effect : effects) {
// Check if the effect overlaps with the end transition
if (effect.getStartTime() + effect.getDuration() >
mDurationMs - transitionDurationMs) {
mEndTransition.invalidate();
break;
}
}
if (mEndTransition.isGenerated()) {
// The end transition must be invalidated if it overlaps with
// an overlay
final List<Overlay> overlays = getAllOverlays();
for (Overlay overlay : overlays) {
// Check if the overlay overlaps with the end transition
if (overlay.getStartTime() + overlay.getDuration() >
mDurationMs - transitionDurationMs) {
mEndTransition.invalidate();
break;
}
}
}
}
mDurationMs = durationMs;
adjustTransitions();
@@ -225,6 +277,64 @@ public class MediaImageItem extends MediaItem {
}
}
/**
* Adjust the start time and/or duration of effects.
*/
private void adjustEffects() {
final List<Effect> effects = getAllEffects();
for (Effect effect : effects) {
// Adjust the start time if necessary
final long effectStartTimeMs;
if (effect.getStartTime() > getDuration()) {
effectStartTimeMs = 0;
} else {
effectStartTimeMs = effect.getStartTime();
}
// Adjust the duration if necessary
final long effectDurationMs;
if (effectStartTimeMs + effect.getDuration() > getDuration()) {
effectDurationMs = getDuration() - effectStartTimeMs;
} else {
effectDurationMs = effect.getDuration();
}
if (effectStartTimeMs != effect.getStartTime() ||
effectDurationMs != effect.getDuration()) {
effect.setStartTimeAndDuration(effectStartTimeMs, effectDurationMs);
}
}
}
/**
* Adjust the start time and/or duration of overlays.
*/
private void adjustOverlays() {
final List<Overlay> overlays = getAllOverlays();
for (Overlay overlay : overlays) {
// Adjust the start time if necessary
final long overlayStartTimeMs;
if (overlay.getStartTime() > getDuration()) {
overlayStartTimeMs = 0;
} else {
overlayStartTimeMs = overlay.getStartTime();
}
// Adjust the duration if necessary
final long overlayDurationMs;
if (overlayStartTimeMs + overlay.getDuration() > getDuration()) {
overlayDurationMs = getDuration() - overlayStartTimeMs;
} else {
overlayDurationMs = overlay.getDuration();
}
if (overlayStartTimeMs != overlay.getStartTime() ||
overlayDurationMs != overlay.getDuration()) {
overlay.setStartTimeAndDuration(overlayStartTimeMs, overlayDurationMs);
}
}
}
/**
* Resize a bitmap to the specified width and height
*
@@ -234,8 +344,7 @@ public class MediaImageItem extends MediaItem {
*
* @return The resized bitmap
*/
private Bitmap scaleImage(String filename, int width, int height)
throws IOException {
private Bitmap scaleImage(String filename, int width, int height) throws IOException {
final BitmapFactory.Options dbo = new BitmapFactory.Options();
dbo.inJustDecodeBounds = true;
BitmapFactory.decodeFile(filename, dbo);

58
media/java/android/media/videoeditor/MediaItem.java
View File

@@ -473,62 +473,4 @@ public abstract class MediaItem {
}
}
}
/**
* Adjust the start time and/or duration of effects.
*/
protected void adjustEffects() {
final List<Effect> effects = getAllEffects();
for (Effect effect : effects) {
// Adjust the start time if necessary
final long effectStartTimeMs;
if (effect.getStartTime() > getDuration()) {
effectStartTimeMs = 0;
} else {
effectStartTimeMs = effect.getStartTime();
}
// Adjust the duration if necessary
final long effectDurationMs;
if (effectStartTimeMs + effect.getDuration() > getDuration()) {
effectDurationMs = getDuration() - effectStartTimeMs;
} else {
effectDurationMs = effect.getDuration();
}
if (effectStartTimeMs != effect.getStartTime() ||
effectDurationMs != effect.getDuration()) {
effect.setStartTimeAndDuration(effectStartTimeMs, effectDurationMs);
}
}
}
/**
* Adjust the start time and/or duration of overlays.
*/
protected void adjustOverlays() {
final List<Overlay> overlays = getAllOverlays();
for (Overlay overlay : overlays) {
// Adjust the start time if necessary
final long overlayStartTimeMs;
if (overlay.getStartTime() > getDuration()) {
overlayStartTimeMs = 0;
} else {
overlayStartTimeMs = overlay.getStartTime();
}
// Adjust the duration if necessary
final long overlayDurationMs;
if (overlayStartTimeMs + overlay.getDuration() > getDuration()) {
overlayDurationMs = getDuration() - overlayStartTimeMs;
} else {
overlayDurationMs = overlay.getDuration();
}
if (overlayStartTimeMs != overlay.getStartTime() ||
overlayDurationMs != overlay.getDuration()) {
overlay.setStartTimeAndDuration(overlayStartTimeMs, overlayDurationMs);
}
}
}
}