feat: updated imageCodec #10
Conversation
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You should maintained the loop and instead added the validation for milliseconds. |
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Hello @fernan542, Just revisiting this, do you know exactly what the loop does? and is this your suggestion? if(duration>0){
for (int sec = 1; sec <= duration; sec++) {
infos.add(ImageInfo(image: frameInfo.image));
}
}else{
infos.add(ImageInfo(image: frameInfo.image));
} |
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Hey @diegogarciar.
I encountered a problem where the The goal of this package is to render each frame per second
824E
that's why I've added a loop in order to correctly render each frame per second, not per Formula from GPT: Time Interval (in milliseconds)=1/FPS×1000 Given your requirement of 15 to 30 frames per second (fps), you would have: For 15 fps: For 30 fps: So, you would need to increment by approximately 66.67 milliseconds for 15 fps and 33.33 milliseconds for 30 fps. Now to apply that in your code (P.S: I didn't test this code, but you get the point) const _fps15 = 66.67;
const _fps30 = 33.33; final buffer = await ImmutableBuffer.fromUint8List(bytes);
ui.Codec codec = await PaintingBinding.instance.instantiateImageCodecWithSize(buffer);
infos = [];
// Log how many frames are decoded by codec.
print('frames: ${codec.frameCount}');
for (int i = 0; i < codec.frameCount; i++) {
final frameInfo = await codec.getNextFrame();
// Use milliseconds.
final duration = frameInfo.duration.inMilliseconds;
// Means the GIF duration is shorter than a single fps.
// Either throw an error or early return.
if (duration <= _fps15 ) {
infos.add(ImageInfo(image: frameInfo.image));
// Exit the loop immediately since there's no other frame left.
break;
}
// Loop through each rate. Each rate is incremented by the computation previously.
for (int rate = 1; rate <= duration; rate+=_fps15 ) {
infos.add(ImageInfo(image: frameInfo.image));
}
}
GifImage.cache.caches.putIfAbsent(key, () => infos);
return infos;If this does not work, I think you may want to read the (FrameInfo docs)[https://api.flutter.dev/flutter/dart-ui/FrameInfo-class.html] because AFAIK the rate is limited to second. One thing that I'm wrong about is deleting the cache of GIF. I didn't notice that I'd pushed my version for cacheing; I intended to remove it because it causes a problem with my dynamic image cacheing. |
I updated the image codec to support flutter3.16, I also had to revert this change because it doesn't support frames with duration below 1 second
#3