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WebP Container Spec:
Clarify that a file must contain at least one frame. Change-Id: I7ecc97084498adc108275585d0c7d0aaa9f5c6ed
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@ -286,10 +286,10 @@ An extended format file consists of:
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* An optional 'META' chunk with metadata.
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As will be described in the 'VP8X' chunk description, by checking a
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flag one can distinguish animated and non-animated images. A
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non-animated image has exactly one frame. An animated one may have
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multiple frames. Data for each frame consists of:
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A file MUST contain at least one frame. As will be described in the 'VP8X'
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chunk description, by checking a flag one can distinguish animated and
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non-animated images. A non-animated image has exactly one frame. An animated
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one may have multiple frames. Data for each frame consists of:
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* An optional 'FRM ' (fourth character is a significant space) chunk
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with animation frame metadata. It MUST be present in animated
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