Fixes: memleaks Fixes: 501913473/clusterfuzz-testcase-minimized-ffmpeg_BSF_SMPTE436M_TO_EIA608_fuzzer-5607133705207808 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>