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demux: accept raw bitstreams

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i.e., allow the WebP file header and leading chunk header to be
stripped.

Change-Id: I43818ed56a14881d9ad11aaddcd0bf5c0ca6aef3
This commit is contained in:
James Zern
2015-12-14 20:14:54 -08:00
parent d6dad5d05f
commit 3f3ea2c539
2 changed files with 61 additions and 8 deletions
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3
src/webp/demux.h
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@ -88,7 +88,8 @@ typedef enum WebPDemuxState {
WEBP_EXTERN(WebPDemuxer*) WebPDemuxInternal(
const WebPData*, int, WebPDemuxState*, int);
// Parses the full WebP file given by 'data'.
// Parses the full WebP file given by 'data'. For single images the WebP file
// header alone or the file header and the chunk header may be absent.
// Returns a WebPDemuxer object on successful parse, NULL otherwise.
static WEBP_INLINE WebPDemuxer* WebPDemux(const WebPData* data) {
return WebPDemuxInternal(data, 0, NULL, WEBP_DEMUX_ABI_VERSION);