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Correct size in VP8L header.

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The size written in VP8L header should be without padding.
(Also clarified this code using consts).

Change-Id: Ic6583d760c0f52ef61924ab0330c65c668a12fdc
This commit is contained in:
Urvang Joshi 2012-05-14 11:19:00 +05:30
parent 2924a5aee6
commit 1b04f6d234
1 changed files with 4 additions and 10 deletions
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14
src/enc/vp8l.c
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@ -797,9 +797,6 @@ static WebPEncodingError WriteRiffHeader(const VP8LEncoder* const enc,
'R', 'I', 'F', 'F', 0, 0, 0, 0, 'W', 'E', 'B', 'P',
'V', 'P', '8', 'L', 0, 0, 0, 0, LOSSLESS_MAGIC_BYTE,
};
if (riff_size < (vp8l_size + TAG_SIZE + CHUNK_HEADER_SIZE)) {
return VP8_ENC_ERROR_INVALID_CONFIGURATION;
}
PutLE32(riff + TAG_SIZE, (uint32_t)riff_size);
PutLE32(riff + RIFF_HEADER_SIZE + TAG_SIZE, (uint32_t)vp8l_size);
if (!pic->writer(riff, sizeof(riff), pic)) {
@ -821,17 +818,14 @@ static void WriteImageSize(VP8LEncoder* const enc, VP8LBitWriter* const bw) {
static WebPEncodingError WriteImage(const VP8LEncoder* const enc,
VP8LBitWriter* const bw,
size_t* const coded_size) {
size_t riff_size, vp8l_size, webpll_size, pad;
const WebPPicture* const pic = enc->pic_;
WebPEncodingError err = VP8_ENC_OK;
const uint8_t* const webpll_data = VP8LBitWriterFinish(bw);
const size_t webpll_size = VP8LBitWriterNumBytes(bw);
const size_t vp8l_size = SIGNATURE_SIZE + webpll_size;
const size_t pad = vp8l_size & 1;
const size_t riff_size = TAG_SIZE + CHUNK_HEADER_SIZE + vp8l_size + pad;
webpll_size = VP8LBitWriterNumBytes(bw);
vp8l_size = SIGNATURE_SIZE + webpll_size;
pad = vp8l_size & 1;
vp8l_size += pad;
riff_size = TAG_SIZE + CHUNK_HEADER_SIZE + vp8l_size;
err = WriteRiffHeader(enc, riff_size, vp8l_size);
if (err != VP8_ENC_OK) goto Error;