generic-library/webp
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

gif2webp: Support GIF_DISPOSE_RESTORE_PREVIOUS

Browse Source 
Tweaked the gif2webp_util API to support this.

Requested in: https://code.google.com/p/webp/issues/detail?id=144

Change-Id: I0e8c4edc39227355cd8d3acc55795186e25d0c3a
This commit is contained in:
Urvang Joshi
2014-10-22 17:02:07 -07:00
parent e4c829efe9
commit 65e5eb8a62
3 changed files with 125 additions and 106 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
examples/gif2webp_util.h
View File

@@ -29,6 +29,13 @@ extern "C" {
struct WebPPicture;
// Includes all disposal methods, even the ones not supported by WebP bitstream.
typedef enum FrameDisposeMethod {
FRAME_DISPOSE_NONE,
FRAME_DISPOSE_BACKGROUND,
FRAME_DISPOSE_RESTORE_PREVIOUS
} FrameDisposeMethod;
typedef struct {
int x_offset, y_offset, width, height;
} WebPFrameRect;
@@ -53,15 +60,15 @@ WebPFrameCache* WebPFrameCacheNew(int width, int height,
// Release all the frame data from 'cache' and free 'cache'.
void WebPFrameCacheDelete(WebPFrameCache* const cache);
// Given an image described by 'frame', 'info' and 'orig_rect', optimize it for
// WebP, encode it and add it to 'cache'. 'orig_rect' can be NULL.
// This takes care of frame disposal too, according to 'info->dispose_method'.
// Given an image described by 'frame', 'rect', 'dispose_method' and 'duration',
// optimize it for WebP, encode it and add it to 'cache'. 'rect' can be NULL.
// This takes care of frame disposal too, according to 'dispose_method'.
// Returns false in case of error (and sets frame->error_code accordingly).
int WebPFrameCacheAddFrame(WebPFrameCache* const cache,
const WebPConfig* const config,
const WebPFrameRect* const orig_rect,
WebPPicture* const frame,
WebPMuxFrameInfo* const info);
const WebPFrameRect* const rect,
FrameDisposeMethod dispose_method, int duration,
WebPPicture* const frame);
// Flush the *ready* frames from cache and add them to 'mux'. If 'verbose' is
// true, prints the information about these frames.