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VP8GetHeaders(): initialize VP8Io with sane value for crop/scale dimensions

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so we can use crop_width/height elsewhere, instead of testing use_cropping

Change-Id: I41705db9f6889b036ecc167d73d1a1536dc33552
This commit is contained in:
Pascal Massimino 2016-04-03 23:57:20 -07:00
parent 6d8c07d375
commit 8923139414
1 changed files with 8 additions and 1 deletions
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9
src/dec/vp8.c
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@ -303,15 +303,22 @@ int VP8GetHeaders(VP8Decoder* const dec, VP8Io* const io) {
dec->mb_w_ = (pic_hdr->width_ + 15) >> 4;
dec->mb_h_ = (pic_hdr->height_ + 15) >> 4;
// Setup default output area (can be later modified during io->setup())
io->width = pic_hdr->width_;
io->height = pic_hdr->height_;
io->use_scaling = 0;
// IMPORTANT! use some sane dimensions in crop_* and scaled_* fields.
// So they can be used interchangeably without always testing for
// 'use_cropping'.
io->use_cropping = 0;
io->crop_top = 0;
io->crop_left = 0;
io->crop_right = io->width;
io->crop_bottom = io->height;
io->use_scaling = 0;
io->scaled_width = io->width;
io->scaled_height = io->height;
io->mb_w = io->width; // sanity check
io->mb_h = io->height; // ditto