[FFmpeg-cvslog] avcodec/hq_hqa: Use ff_set_dimensions()

[Michael Niedermayer]

ffmpeg | branch: release/4.1 | Michael Niedermayer <michael at niedermayer.cc> | Sat Jun 29 21:53:09 2019 +0200| [3e3db69193809d5c1844b0e49f9f8da181492133] | committer: Michael Niedermayer

avcodec/hq_hqa: Use ff_set_dimensions()

Fixes: 15530/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HQ_HQA_fuzzer-5637370344374272
Fixes: signed integer overflow: 65312 * 65312 cannot be represented in type 'int'

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
(cherry picked from commit a6229fcd405d4135848c83df73634871260de59c)
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=3e3db69193809d5c1844b0e49f9f8da181492133
---

 libavcodec/hq_hqa.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/libavcodec/hq_hqa.c b/libavcodec/hq_hqa.c
index 90bafdc72a..eec2e980b3 100644
--- a/libavcodec/hq_hqa.c
+++ b/libavcodec/hq_hqa.c
@@ -254,10 +254,12 @@ static int hqa_decode_frame(HQContext *ctx, AVFrame *pic, size_t data_size)
     width  = bytestream2_get_be16(&ctx->gbc);
     height = bytestream2_get_be16(&ctx->gbc);
 
+    ret = ff_set_dimensions(ctx->avctx, width, height);
+    if (ret < 0)
+        return ret;
+
     ctx->avctx->coded_width         = FFALIGN(width,  16);
     ctx->avctx->coded_height        = FFALIGN(height, 16);
-    ctx->avctx->width               = width;
-    ctx->avctx->height              = height;
     ctx->avctx->bits_per_raw_sample = 8;
     ctx->avctx->pix_fmt             = AV_PIX_FMT_YUVA422P;