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Increase initial buffer size for VP8L Bit Writer.

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Increase the initial buffer size for VP8L Bit Writer from 4bpp to 8bpp.
The resize buffer is expensive (requires realloc and copy) and this additional
memory (0.5 * W * H) doesn't add much overhead on the lossless encoder.

Change-Id: Ic1fe55cd7bc3d1afadc799e4c2c8786ec848ee66
This commit is contained in:
Vikas Arora 2014-02-11 11:12:21 -08:00
parent a7d2ee39be
commit fde2904b8a
1 changed files with 2 additions and 1 deletions
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3
src/enc/vp8l.c
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@ -1096,7 +1096,8 @@ int VP8LEncodeImage(const WebPConfig* const config,
width = picture->width;
height = picture->height;
if (!VP8LBitWriterInit(&bw, (width * height) >> 1)) {
// Initialize BitWriter with size corresponding to 8bpp.
if (!VP8LBitWriterInit(&bw, width * height)) {
err = VP8_ENC_ERROR_OUT_OF_MEMORY;
goto Error;
}