On 11/14/2020 10:29 PM, James Almer wrote:
From: Michael Niedermayer <mich...@niedermayer.cc>
This should increase coverage
Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>
Signed-off-by: James Almer <jamr...@gmail.com>
Ping for set.
---
tools/target_dec_fuzzer.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/tools/target_dec_fuzzer.c b/tools/target_dec_fuzzer.c
index 4eb59bd296..11530cbf79 100644
--- a/tools/target_dec_fuzzer.c
+++ b/tools/target_dec_fuzzer.c
@@ -110,6 +110,7 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t
size) {
const AVPacket *avpkt) = NULL;
AVCodecParserContext *parser = NULL;
uint64_t keyframes = 0;
+ uint64_t flushpattern = -1;
AVDictionary *opts = NULL;
if (!c) {
@@ -239,6 +240,7 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t
size) {
ctx->request_channel_layout = bytestream2_get_le64(&gbc);
ctx->idct_algo = bytestream2_get_byte(&gbc) % 25;
+ flushpattern = bytestream2_get_le64(&gbc);
if (flags & 0x20) {
switch (ctx->codec_id) {
@@ -332,6 +334,10 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t
size) {
av_packet_move_ref(&avpkt, &parsepkt);
}
+ if (!(flushpattern & 7))
+ avcodec_flush_buffers(ctx);
+ flushpattern = (flushpattern >> 3) + (flushpattern << 61);
+
// Iterate through all data
while (avpkt.size > 0 && it++ < maxiteration) {
av_frame_unref(frame);
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