ffmpeg | branch: release/2.4 | Michael Niedermayer <michae...@gmx.at> | Tue Apr
7 02:47:36 2015 +0200| [7493c54ad075920721c2b80a9b0d86cf02f41f4a] | committer:
Michael Niedermayer
avcodec/h264: finish previous slices before switching to single thread mode
Fixes null pointer dereference
Fixes Ticket4438
Signed-off-by: Michael Niedermayer <michae...@gmx.at>
(cherry picked from commit c4b2017ba66e1623da9f527704c61c86a6e74844)
Conflicts:
libavcodec/h264.c
(cherry picked from commit 09cc7aee3f4d1bd1d7107d38520f782c62c14036)
Signed-off-by: Michael Niedermayer <michae...@gmx.at>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=7493c54ad075920721c2b80a9b0d86cf02f41f4a
---
libavcodec/h264.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/libavcodec/h264.c b/libavcodec/h264.c
index 7b5c506..704c089 100644
--- a/libavcodec/h264.c
+++ b/libavcodec/h264.c
@@ -1730,6 +1730,12 @@ again:
av_log(h->avctx, AV_LOG_ERROR, "decode_slice_header
error\n");
h->ref_count[0] = h->ref_count[1] = h->list_count = 0;
} else if (err == SLICE_SINGLETHREAD) {
+ if (context_count > 1) {
+ ret = ff_h264_execute_decode_slices(h, context_count - 1);
+ if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
+ goto end;
+ context_count = 0;
+ }
/* Slice could not be decoded in parallel mode, copy down
* NAL unit stuff to context 0 and restart. Note that
* rbsp_buffer is not transferred, but since we no longer
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