mirror of https://github.com/google/oss-fuzz.git
66 lines
1.6 KiB
C++
66 lines
1.6 KiB
C++
// Fuzzing of AV1 decoder.
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "aom/aom_decoder.h"
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#include "aom/aomdx.h"
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#include "aom_ports/mem_ops.h"
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#include "common/ivfdec.h"
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static const char *const kIVFSignature = "DKIF";
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extern "C" void usage_exit(void) { exit(EXIT_FAILURE); }
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
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FILE *const file = fmemopen((void *)data, size, "rb");
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if (file == nullptr) {
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return 0;
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}
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char header[32];
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if (fread(header, 1, 32, file) != 32) {
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return 0;
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}
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const AvxInterface *decoder = get_aom_decoder_by_name("av1");
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if (decoder == nullptr) {
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return 0;
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}
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aom_codec_ctx_t codec;
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#if defined(DECODE_MODE)
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const int threads = 1;
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#elif defined(DECODE_MODE_threaded)
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const int threads = 16;
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#else
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#error define one of DECODE_MODE or DECODE_MODE_threaded
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#endif
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aom_codec_dec_cfg_t cfg = {threads, 0, 0};
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if (aom_codec_dec_init(&codec, decoder->codec_interface(), &cfg, 0)) {
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aom_codec_destroy(&codec);
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return 0;
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}
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int frame_in_cnt = 0;
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int frame_out_cnt = 0;
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uint8_t *buffer = nullptr;
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size_t buffer_size = 0;
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size_t frame_size = 0;
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while (!ivf_read_frame(file, &buffer, &frame_size, &buffer_size, NULL)) {
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const aom_codec_err_t err = aom_codec_decode(
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&codec, buffer, static_cast<unsigned int>(frame_size), NULL);
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++frame_in_cnt;
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aom_codec_iter_t iter = nullptr;
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aom_image_t *img = nullptr;
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while ((img = aom_codec_get_frame(&codec, &iter)) != nullptr) {
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++frame_out_cnt;
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}
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}
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fclose(file);
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free(buffer);
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return 0;
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}
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