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avcodec/srtdec: add some memory checks
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6a65da3a18
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592716227c
@ -223,7 +223,7 @@ static int srt_decode_frame(AVCodecContext *avctx,
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char buffer[2048];
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const char *ptr = avpkt->data;
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const char *end = avpkt->data + avpkt->size;
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int size;
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int size, ret;
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const uint8_t *p = av_packet_get_side_data(avpkt, AV_PKT_DATA_SUBTITLE_POSITION, &size);
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if (p && size == 16) {
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@ -252,7 +252,9 @@ static int srt_decode_frame(AVCodecContext *avctx,
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}
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ptr = srt_to_ass(avctx, buffer, buffer+sizeof(buffer), ptr,
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x1, y1, x2, y2);
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ff_ass_add_rect(sub, buffer, ts_start, ts_end-ts_start, 0);
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ret = ff_ass_add_rect(sub, buffer, ts_start, ts_end-ts_start, 0);
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if (ret < 0)
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return ret;
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}
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*got_sub_ptr = sub->num_rects > 0;
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