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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-10-17 13:05:24 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-10-17 13:17:18 +0200 |
| commit | 0279e727e99282dfa6c7019f468cb217543be243 (patch) | |
| tree | d70ea6a79ddedd50ded56dae589a75354759bc0b | |
| parent | 097c917c147661f5378dae8fe3f7e46f43236426 (diff) | |
| download | ffmpeg-0279e727e99282dfa6c7019f468cb217543be243.tar.gz | |
avcodec/cavsdec: Set ret on errors in decode_pic()
Fixes regression and fate failure on some machienes
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/cavsdec.c | 16 | ||||
| -rw-r--r-- | tests/ref/fate/cavs | 2 |
2 files changed, 13 insertions, 5 deletions
diff --git a/libavcodec/cavsdec.c b/libavcodec/cavsdec.c index 436f902ab3..aaed807196 100644 --- a/libavcodec/cavsdec.c +++ b/libavcodec/cavsdec.c @@ -1102,15 +1102,19 @@ static int decode_pic(AVSContext *h) if (check_for_slice(h)) skip_count = -1; if (h->skip_mode_flag && (skip_count < 0)) { - if (get_bits_left(&h->gb) < 1) + if (get_bits_left(&h->gb) < 1) { + ret = AVERROR_INVALIDDATA; break; + } skip_count = get_ue_golomb(&h->gb); } if (h->skip_mode_flag && skip_count--) { decode_mb_p(h, P_SKIP); } else { - if (get_bits_left(&h->gb) < 1) + if (get_bits_left(&h->gb) < 1) { + ret = AVERROR_INVALIDDATA; break; + } mb_type = get_ue_golomb(&h->gb) + P_SKIP + h->skip_mode_flag; if (mb_type > P_8X8) ret = decode_mb_i(h, mb_type - P_8X8 - 1); @@ -1125,15 +1129,19 @@ static int decode_pic(AVSContext *h) if (check_for_slice(h)) skip_count = -1; if (h->skip_mode_flag && (skip_count < 0)) { - if (get_bits_left(&h->gb) < 1) + if (get_bits_left(&h->gb) < 1) { + ret = AVERROR_INVALIDDATA; break; + } skip_count = get_ue_golomb(&h->gb); } if (h->skip_mode_flag && skip_count--) { ret = decode_mb_b(h, B_SKIP); } else { - if (get_bits_left(&h->gb) < 1) + if (get_bits_left(&h->gb) < 1) { + ret = AVERROR_INVALIDDATA; break; + } mb_type = get_ue_golomb(&h->gb) + B_SKIP + h->skip_mode_flag; if (mb_type > B_8X8) ret = decode_mb_i(h, mb_type - B_8X8 - 1); diff --git a/tests/ref/fate/cavs b/tests/ref/fate/cavs index 4c3d127fa3..89c2b4b0b4 100644 --- a/tests/ref/fate/cavs +++ b/tests/ref/fate/cavs @@ -172,4 +172,4 @@ 0, 166, 166, 1, 622080, 0x05496a5d 0, 167, 167, 1, 622080, 0xdcb4cee8 0, 168, 168, 1, 622080, 0xb41172e5 -0, 169, 169, 1, 622080, 0x26146e0b +0, 169, 169, 1, 622080, 0x84ff3af9 |