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avcodec/jacosubdec: add some memory checks
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parent
d210c0e777
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4c85073044
@ -168,6 +168,7 @@ static void jacosub_to_ass(AVCodecContext *avctx, AVBPrint *dst, const char *src
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static int jacosub_decode_frame(AVCodecContext *avctx,
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void *data, int *got_sub_ptr, AVPacket *avpkt)
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{
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int ret;
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AVSubtitle *sub = data;
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const char *ptr = avpkt->data;
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@ -176,7 +177,6 @@ static int jacosub_decode_frame(AVCodecContext *avctx,
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if (*ptr) {
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AVBPrint buffer;
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char *dec_sub;
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// skip timers
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ptr = jss_skip_whitespace(ptr);
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@ -185,9 +185,10 @@ static int jacosub_decode_frame(AVCodecContext *avctx,
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av_bprint_init(&buffer, JSS_MAX_LINESIZE, JSS_MAX_LINESIZE);
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jacosub_to_ass(avctx, &buffer, ptr);
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av_bprint_finalize(&buffer, &dec_sub);
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ff_ass_add_rect(sub, dec_sub, avpkt->pts, avpkt->duration, 0);
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av_free(dec_sub);
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ret = ff_ass_add_rect_bprint(sub, &buffer, avpkt->pts, avpkt->duration, 0);
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av_bprint_finalize(&buffer, NULL);
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if (ret < 0)
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return ret;
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}
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end:
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