[FFmpeg-cvslog] tools/target_dem_fuzzer: Force interrupt for HLS

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michael at niedermayer.cc> | Sun Dec  5 19:23:26 2021 +0100| [1372b30db2d5b4565376a168d7d806c56f3d96f1] | committer: Michael Niedermayer

tools/target_dem_fuzzer: Force interrupt for HLS

Fixes: Timeout
Fixes: 41580/clusterfuzz-testcase-minimized-ffmpeg_dem_HLS_fuzzer-5059099224571904

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=1372b30db2d5b4565376a168d7d806c56f3d96f1
---

 tools/target_dem_fuzzer.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/target_dem_fuzzer.c b/tools/target_dem_fuzzer.c
index 6ee793a28b..687989ccc8 100644
--- a/tools/target_dem_fuzzer.c
+++ b/tools/target_dem_fuzzer.c
@@ -172,6 +172,10 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
         avfmt->interrupt_callback.callback = interrupt_cb;
     }
 
+    // HLS uses a loop with sleep, we thus must breakout or we timeout
+    if (!strcmp(fmt->name, "hls"))
+        interrupt_counter &= 31;
+
     if (!io_buffer_size || size / io_buffer_size > maxblocks)
         io_buffer_size = size;