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authorAnton Khirnov <anton@khirnov.net>2022-11-17 09:53:39 +0100
committerAnton Khirnov <anton@khirnov.net>2022-11-23 10:36:23 +0100
commit005f4e1caf9c0f20a50ccf58fbcd4b6b26853c9f (patch)
treee3b3d3aafffa5d01975d2ebc2e5de388d2f59d03 /fftools/ffmpeg.c
parentfd8bf8d3b52b683d203bfe02c6972e63199ac4f4 (diff)
fftools/ffmpeg: do not assume input streams exist
There can be zero input streams, with input provided by lavfi complex filtergraphs.
Diffstat (limited to 'fftools/ffmpeg.c')
-rw-r--r--fftools/ffmpeg.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/fftools/ffmpeg.c b/fftools/ffmpeg.c
index 0944f56b80..c43c3ca3bc 100644
--- a/fftools/ffmpeg.c
+++ b/fftools/ffmpeg.c
@@ -3401,7 +3401,11 @@ static int check_keyboard_interaction(int64_t cur_time)
if (key == 'd' || key == 'D'){
int debug=0;
if(key == 'D') {
- debug = ist_iter(NULL)->dec_ctx->debug << 1;
+ InputStream *ist = ist_iter(NULL);
+
+ if (ist)
+ debug = ist->dec_ctx->debug << 1;
+
if(!debug) debug = 1;
while (debug & FF_DEBUG_DCT_COEFF) //unsupported, would just crash
debug += debug;