diff mbox

[FFmpeg-devel,3/3] tools/target_dec_fuzzer: Use codec_tags list

Message ID 20191229233819.17510-3-michael@niedermayer.cc
State Accepted
Headers show

Commit Message

Michael Niedermayer Dec. 29, 2019, 11:38 p.m. UTC 
This should make it much quicker for the fuzzer to test
real relevant codec_tags

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
 tools/target_dec_fuzzer.c | 5 +++++
 1 file changed, 5 insertions(+)
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Patch

diff --git a/tools/target_dec_fuzzer.c b/tools/target_dec_fuzzer.c
index c6e1235ad3..b9e08f74d2 100644
--- a/tools/target_dec_fuzzer.c
+++ b/tools/target_dec_fuzzer.c
@@ -212,6 +212,11 @@  int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
         ctx->channels                           = (unsigned)bytestream2_get_le32(&gbc) % FF_SANE_NB_CHANNELS;
         ctx->block_align                        = bytestream2_get_le32(&gbc) & 0x7FFFFFFF;
         ctx->codec_tag                          = bytestream2_get_le32(&gbc);
+        if (c->codec_tags) {
+            int n;
+            for (n = 0; c->codec_tags[n] != CODEC_TAGS_END; n++);
+            ctx->codec_tag = c->codec_tags[ctx->codec_tag % n];
+        }
         keyframes                               = bytestream2_get_le64(&gbc);
         ctx->request_channel_layout             = bytestream2_get_le64(&gbc);