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Add more comments to SkCodec::getRepetitionCount

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Bug: skia:
Change-Id: Icc2d7d78106cb587905a8ddb039bc9bf7ae6ad91
Reviewed-on: https://skia-review.googlesource.com/146021
Reviewed-by: Leon Scroggins <scroggo@google.com>
Reviewed-by: Derek Sollenberger <djsollen@google.com>
Commit-Queue: Leon Scroggins <scroggo@google.com>
This commit is contained in:
Nigel Tao 2018-08-22 10:36:12 +10:00 committed by Skia Commit-Bot
parent e6ab998bc2
commit 96597c22c3
1 changed files with 8 additions and 3 deletions
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11
include/codec/SkCodec.h
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@ -636,20 +636,25 @@ public:
*
* As such, future decoding calls may require a rewind.
*
* For single-frame images, this will return an empty vector.
* For still (non-animated) image codecs, this will return an empty vector.
*/
std::vector<FrameInfo> getFrameInfo();
static constexpr int kRepetitionCountInfinite = -1;
/**
* Return the number of times to repeat, if this image is animated.
* Return the number of times to repeat, if this image is animated. This number does not
* include the first play through of each frame. For example, a repetition count of 4 means
* that each frame is played 5 times and then the animation stops.
*
* It can return kRepetitionCountInfinite, a negative number, meaning that the animation
* should loop forever.
*
* May require reading the stream to find the repetition count.
*
* As such, future decoding calls may require a rewind.
*
* For single-frame images, this will return 0.
* For still (non-animated) image codecs, this will return 0.
*/
int getRepetitionCount() {
return this->onGetRepetitionCount();