avcodec/alac: Clear pointers in allocate_buffers()

Fixes: 06a4edb39ad8a9883175f9bd428334a2_signal_sigsegv_7ffff713351a_706_mov__alac__ALAC_6ch.mov

Found-by: Samuel Groß, Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit f7068bf277)

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2015-07-13 15:46:10 +02:00
parent 7db809a373
commit 264eb0074f
1 changed files with 6 additions and 0 deletions

View File

@ -534,6 +534,12 @@ static int allocate_buffers(ALACContext *alac)
int ch;
int buf_size = alac->max_samples_per_frame * sizeof(int32_t);
for (ch = 0; ch < 2; ch++) {
alac->predict_error_buffer[ch] = NULL;
alac->output_samples_buffer[ch] = NULL;
alac->extra_bits_buffer[ch] = NULL;
}
for (ch = 0; ch < FFMIN(alac->channels, 2); ch++) {
FF_ALLOC_OR_GOTO(alac->avctx, alac->predict_error_buffer[ch],
buf_size, buf_alloc_fail);