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tools/target_dec_fuzzer: Stop negative block_align and sampling rate
These are checked for early in avcodec_open2() and do not really test the decoder but instead waste resources which could be better spend fuzzing the actual decoder Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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@@ -206,9 +206,9 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
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extradata_size = bytestream2_get_le32(&gbc);
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ctx->sample_rate = bytestream2_get_le32(&gbc);
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ctx->sample_rate = bytestream2_get_le32(&gbc) & 0x7FFFFFFF;
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ctx->channels = (unsigned)bytestream2_get_le32(&gbc) % FF_SANE_NB_CHANNELS;
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ctx->block_align = bytestream2_get_le32(&gbc);
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ctx->block_align = bytestream2_get_le32(&gbc) & 0x7FFFFFFF;
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ctx->codec_tag = bytestream2_get_le32(&gbc);
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keyframes = bytestream2_get_le64(&gbc);
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ctx->request_channel_layout = bytestream2_get_le64(&gbc);
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