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[FFmpeg-devel,2/7] tools/target_dec_fuzzer: count all video decoding failures in the new API

Message ID 20210202231334.24412-2-michael@niedermayer.cc
State Accepted
Commit 887bd6b02f6fbcc55a27dae31729efb0b769d5e0
Headers show
Series [FFmpeg-devel,1/7] avformat/utils: Extend overflow check in dts wrap in compute_pkt_fields() | expand

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andriy/PPC64_make success Make finished
andriy/PPC64_make_fate success Make fate finished

Commit Message

Michael Niedermayer Feb. 2, 2021, 11:13 p.m. UTC 
The next commit depends on this

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
 tools/target_dec_fuzzer.c | 7 +++++++
 1 file changed, 7 insertions(+)

Comments

Michael Niedermayer Feb. 16, 2021, 5:17 p.m. UTC | #1 
On Wed, Feb 03, 2021 at 12:13:29AM +0100, Michael Niedermayer wrote:
> The next commit depends on this
> 
> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
> ---
>  tools/target_dec_fuzzer.c | 7 +++++++
>  1 file changed, 7 insertions(+)

will apply

[...]
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Patch

diff --git a/tools/target_dec_fuzzer.c b/tools/target_dec_fuzzer.c
index affa6e3b51..cef47cbd50 100644
--- a/tools/target_dec_fuzzer.c
+++ b/tools/target_dec_fuzzer.c
@@ -349,6 +349,13 @@  int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
           if (ctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
               int ret = avcodec_send_packet(ctx, &avpkt);
               decode_more = ret >= 0;
+              if(!decode_more) {
+                    ec_pixels += (ctx->width + 32LL) * (ctx->height + 32LL);
+                    if (it > 20 || ec_pixels > 4 * ctx->max_pixels)
+                        ctx->error_concealment = 0;
+                    if (ec_pixels > maxpixels)
+                        goto maximums_reached;
+              }
           } else
               decode_more = 1;