Improve fuzzer coverage
- Use four boolean codec controls :
- AV1_SET_TILE_MODE
- AV1D_EXT_TILE_DEBUG
- AV1D_SET_IS_ANNEXB
- AV1D_SET_OUTPUT_ALL_LAYERS
- Use AV1D_SET_OPERATING_POINT codec control
Change-Id: I23b79a58ae4ec01ffa7f8ea4b536fc5b0a46b55e
diff --git a/examples/av1_dec_fuzzer.cc b/examples/av1_dec_fuzzer.cc
index 9b9a0b9..e9388b7 100644
--- a/examples/av1_dec_fuzzer.cc
+++ b/examples/av1_dec_fuzzer.cc
@@ -34,6 +34,14 @@
return 0;
}
+ // Abusing the four unused bytes at the end of the IVF file header as a source
+ // of random bits.
+ unsigned int tile_mode = (data[IVF_FILE_HDR_SZ - 1] & 2) != 0;
+ unsigned int ext_tile_debug = (data[IVF_FILE_HDR_SZ - 1] & 4) != 0;
+ unsigned int is_annexb = (data[IVF_FILE_HDR_SZ - 1] & 8) != 0;
+ int output_all_layers = (data[IVF_FILE_HDR_SZ - 1] & 0x10) != 0;
+ int operating_point = data[IVF_FILE_HDR_SZ - 2] & 0x1F;
+
aom_codec_iface_t *codec_interface = aom_codec_av1_dx();
aom_codec_ctx_t codec;
// Set thread count in the range [1, 64].
@@ -42,6 +50,13 @@
if (aom_codec_dec_init(&codec, codec_interface, &cfg, 0)) {
return 0;
}
+ AOM_CODEC_CONTROL_TYPECHECKED(&codec, AV1_SET_TILE_MODE, tile_mode);
+ AOM_CODEC_CONTROL_TYPECHECKED(&codec, AV1D_EXT_TILE_DEBUG, ext_tile_debug);
+ AOM_CODEC_CONTROL_TYPECHECKED(&codec, AV1D_SET_IS_ANNEXB, is_annexb);
+ AOM_CODEC_CONTROL_TYPECHECKED(&codec, AV1D_SET_OUTPUT_ALL_LAYERS,
+ output_all_layers);
+ AOM_CODEC_CONTROL_TYPECHECKED(&codec, AV1D_SET_OPERATING_POINT,
+ operating_point);
data += IVF_FILE_HDR_SZ;
size -= IVF_FILE_HDR_SZ;
