74 lines
2.0 KiB
C++
74 lines
2.0 KiB
C++
/*
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# Copyright 2021 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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################################################################################
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <libass/ass.h>
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static ASS_Library *ass_library;
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static ASS_Renderer *ass_renderer;
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void msg_callback(int level, const char *fmt, va_list va, void *data) {
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}
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static const int kFrameWidth = 1280;
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static const int kFrameHeight = 720;
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struct init {
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init(int frame_w, int frame_h) {
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ass_library = ass_library_init();
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if (!ass_library) {
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printf("ass_library_init failed!\n");
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exit(1);
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}
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ass_set_message_cb(ass_library, msg_callback, NULL);
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ass_renderer = ass_renderer_init(ass_library);
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if (!ass_renderer) {
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printf("ass_renderer_init failed!\n");
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exit(1);
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}
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ass_set_frame_size(ass_renderer, frame_w, frame_h);
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ass_set_fonts(ass_renderer, nullptr, "sans-serif",
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ASS_FONTPROVIDER_AUTODETECT, nullptr, 1);
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}
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~init() {
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ass_renderer_done(ass_renderer);
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ass_library_done(ass_library);
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}
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};
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
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static init initialized(kFrameWidth, kFrameHeight);
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ASS_Track *track = ass_read_memory(ass_library, (char *)data, size, nullptr);
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if (!track) return 0;
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for (int i = 0; i < track->n_events; ++i) {
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ASS_Event &ev = track->events[i];
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long long tm = ev.Start + ev.Duration / 2;
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ass_render_frame(ass_renderer, track, tm, nullptr);
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}
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ass_free_track(track);
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return 0;
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}
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