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avcodec/cdgraphics: Use ff_set_dimensions()

Fixes: Timeout (17 sec -> 65 milli sec)
Fixes: 13264/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_CDGRAPHICS_fuzzer-5711167941509120

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 9a9f0e239c1c6f5c96cc90ba673087f86ca1eabc)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Michael Niedermayer authored on 2019/03/05 20:51:22
Showing 1 changed files
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@@ -80,11 +80,8 @@ static av_cold int cdg_decode_init(AVCodecContext *avctx)
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         return AVERROR(ENOMEM);
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     cc->transparency = -1;
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-    avctx->width   = CDG_FULL_WIDTH;
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-    avctx->height  = CDG_FULL_HEIGHT;
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     avctx->pix_fmt = AV_PIX_FMT_PAL8;
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-
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-    return 0;
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+    return ff_set_dimensions(avctx, CDG_FULL_WIDTH, CDG_FULL_HEIGHT);
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 }
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 static void cdg_border_preset(CDGraphicsContext *cc, uint8_t *data)