blob: 1b22198fd23059c38daf3470e545de2f9d44d420 [file] [log] [blame]
// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <stddef.h>
#include "base/numerics/safe_conversions.h"
#include "media/video/h265_parser.h"
// Entry point for LibFuzzer.
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
if (!size)
return 0;
media::H265Parser parser;
parser.SetStream(data, base::checked_cast<off_t>(size));
// Parse until the end of stream/unsupported stream/error in stream is
// found.
while (true) {
media::H265NALU nalu;
media::H265SEIMessage sei_msg;
media::H265Parser::Result res = parser.AdvanceToNextNALU(&nalu);
if (res != media::H265Parser::kOk)
break;
media::H265SliceHeader shdr;
media::H265SliceHeader prior_shdr;
switch (nalu.nal_unit_type) {
case media::H265NALU::VPS_NUT:
int vps_id;
res = parser.ParseVPS(&vps_id);
break;
case media::H265NALU::SPS_NUT:
int sps_id;
res = parser.ParseSPS(&sps_id);
break;
case media::H265NALU::PPS_NUT:
int pps_id;
res = parser.ParsePPS(nalu, &pps_id);
break;
case media::H265NALU::PREFIX_SEI_NUT:
res = parser.ParseSEI(&sei_msg);
break;
case media::H265NALU::TRAIL_N:
case media::H265NALU::TRAIL_R:
case media::H265NALU::TSA_N:
case media::H265NALU::TSA_R:
case media::H265NALU::STSA_N:
case media::H265NALU::STSA_R:
case media::H265NALU::RADL_N:
case media::H265NALU::RADL_R:
case media::H265NALU::RASL_N:
case media::H265NALU::RASL_R:
case media::H265NALU::BLA_W_LP:
case media::H265NALU::BLA_W_RADL:
case media::H265NALU::BLA_N_LP:
case media::H265NALU::IDR_W_RADL:
case media::H265NALU::IDR_N_LP:
case media::H265NALU::CRA_NUT: // fallthrough
res = parser.ParseSliceHeader(nalu, &shdr, &prior_shdr);
prior_shdr = shdr;
break;
default:
// Skip any other NALU.
break;
}
if (res != media::H265Parser::kOk)
break;
}
return 0;
}