WebPMuxError WebPFrameCacheFlush(WebPFrameCache* const cache, int verbose,
WebPMux* const mux) {
while (cache->flush_count > 0) {
WebPMuxFrameInfo* info;
WebPMuxError err;
EncodedFrame* const curr = CacheGetFrame(cache, 0);
// Pick frame or full canvas.
if (cache->keyframe == 0) {
info = &curr->key_frame;
info->blend_method = WEBP_MUX_NO_BLEND;
cache->keyframe = KEYFRAME_NONE;
cache->best_delta = DELTA_INFINITY;
} else {
info = &curr->sub_frame;
info->blend_method = WEBP_MUX_BLEND;
}
// Add to mux.
err = WebPMuxPushFrame(mux, info, 1);
if (err != WEBP_MUX_OK) return err;
if (verbose) {
printf("Added frame. offset:%d,%d duration:%d dispose:%d blend:%d\n",
info->x_offset, info->y_offset, info->duration,
info->dispose_method, info->blend_method);
}
FrameRelease(curr);
++cache->start;
--cache->flush_count;
--cache->count;
if (cache->keyframe != KEYFRAME_NONE) --cache->keyframe;
}
if (cache->count == 0) CacheReset(cache);
return WEBP_MUX_OK;
}
void WebPFrameCacheDelete(WebPFrameCache* const cache) {
if (cache != NULL) {
size_t i;
for (i = 0; i < cache->size; ++i) {
FrameRelease(&cache->encoded_frames[i]);
}
free(cache->encoded_frames);
free(cache);
}
}
void WebPAnimEncoderDelete(WebPAnimEncoder* enc) {
if (enc != NULL) {;
WebPPictureFree(&enc->curr_canvas_copy_);
WebPPictureFree(&enc->prev_canvas_);
WebPPictureFree(&enc->prev_canvas_disposed_);
if (enc->encoded_frames_ != NULL) {
size_t i;
for (i = 0; i < enc->size_; ++i) {
FrameRelease(&enc->encoded_frames_[i]);
}
WebPSafeFree(enc->encoded_frames_);
}
WebPMuxDelete(enc->mux_);
WebPSafeFree(enc);
}
}