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lavf/subtitles: error out in case of bitmap subtitles.
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@ -267,6 +267,7 @@ static av_cold int init_subtitles(AVFilterContext *ctx, const char *args)
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AVFormatContext *fmt = NULL;
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AVCodecContext *dec_ctx = NULL;
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AVCodec *dec = NULL;
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AVCodecDescriptor *dec_desc;
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AVStream *st;
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AVPacket pkt;
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AssContext *ass = ctx->priv;
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@ -309,6 +310,12 @@ static av_cold int init_subtitles(AVFilterContext *ctx, const char *args)
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avcodec_get_name(dec_ctx->codec_id));
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return AVERROR(EINVAL);
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}
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dec_desc = avcodec_descriptor_get(dec_ctx->codec_id);
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if (dec_desc && (dec_desc->props & AV_CODEC_PROP_BITMAP_SUB)) {
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av_log(ctx, AV_LOG_ERROR,
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"Only text based subtitles are currently supported\n");
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return AVERROR_PATCHWELCOME;
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}
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if (ass->charenc)
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av_dict_set(&codec_opts, "sub_charenc", ass->charenc, 0);
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ret = avcodec_open2(dec_ctx, dec, &codec_opts);
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