X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=nageru%2Fmixer.cpp;h=d1b52ef2dc54b4a9db8ad84e755bbadc4ac76411;hb=39889eeed810016fd7d277d8bbfcc58e6f305c82;hp=367094cfeb08c35af2a9dfb9fdd1c5a0ae2d4892;hpb=062007870811b42cc5ac1284f8de2c4aece71963;p=nageru

diff --git a/nageru/mixer.cpp b/nageru/mixer.cpp
index 367094c..d1b52ef 100644
--- a/nageru/mixer.cpp
+++ b/nageru/mixer.cpp
@@ -795,7 +795,7 @@ void Mixer::bm_frame(unsigned card_index, uint16_t timecode,
 	card->last_timecode = timecode;
 
 	PBOFrameAllocator::Userdata *userdata = (PBOFrameAllocator::Userdata *)video_frame.userdata;
-	if (card->type == CardType::FFMPEG_INPUT) {
+	if (card->type == CardType::FFMPEG_INPUT && userdata != nullptr) {
 		FFmpegCapture *ffmpeg_capture = static_cast<FFmpegCapture *>(card->capture.get());
 		userdata->has_last_subtitle = ffmpeg_capture->get_has_last_subtitle();
 		userdata->last_subtitle = ffmpeg_capture->get_last_subtitle();