avformat/asfdec_f: Use dynamic allocation in asf_read_metadata() instead of a fixed size buffer
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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c8eca438a9
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59fffefdb4
@ -686,24 +686,29 @@ static int asf_read_metadata(AVFormatContext *s, int64_t size)
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{
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AVIOContext *pb = s->pb;
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ASFContext *asf = s->priv_data;
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int n, stream_num, name_len, value_len;
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int n, stream_num, name_len_utf16, name_len_utf8, value_len;
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int ret, i;
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n = avio_rl16(pb);
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for (i = 0; i < n; i++) {
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char name[1024];
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uint8_t *name;
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int value_type;
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avio_rl16(pb); // lang_list_index
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stream_num = avio_rl16(pb);
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name_len = avio_rl16(pb);
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name_len_utf16 = avio_rl16(pb);
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value_type = avio_rl16(pb); /* value_type */
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value_len = avio_rl32(pb);
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if ((ret = avio_get_str16le(pb, name_len, name, sizeof(name))) < name_len)
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avio_skip(pb, name_len - ret);
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name_len_utf8 = 2*name_len_utf16 + 1;
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name = av_malloc(name_len_utf8);
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if (!name)
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return AVERROR(ENOMEM);
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if ((ret = avio_get_str16le(pb, name_len_utf16, name, name_len_utf8)) < name_len_utf16)
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avio_skip(pb, name_len_utf16 - ret);
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av_log(s, AV_LOG_TRACE, "%d stream %d name_len %2d type %d len %4d <%s>\n",
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i, stream_num, name_len, value_type, value_len, name);
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i, stream_num, name_len_utf16, value_type, value_len, name);
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if (!strcmp(name, "AspectRatioX")){
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int aspect_x = get_value(s->pb, value_type, 16);
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