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-rw-r--r--libvo/jpeg_enc.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/libvo/jpeg_enc.c b/libvo/jpeg_enc.c
index 98ed71fe44..ba2596f398 100644
--- a/libvo/jpeg_enc.c
+++ b/libvo/jpeg_enc.c
@@ -352,6 +352,9 @@ jpeg_enc_t *jpeg_enc_init(int w, int h, int y_psize, int y_rsize,
/* alloc bogus avctx to keep MPV_common_init from segfaulting */
j->s->avctx = calloc(sizeof(*j->s->avctx), 1);
+ /* make MPV_common_init allocate important buffers, like s->block */
+ j->s->avctx->thread_count = 1;
+
if (MPV_common_init(j->s) < 0) {
av_free(j->s);
av_free(j);