Function av_packet_unpack_dictionary

libavcodec/packet.c:352–377

}

int av_packet_unpack_dictionary(const uint8_t *data, size_t size,
                                AVDictionary **dict)
{
    const uint8_t *end;
    int ret;

    if (!dict || !data || !size)
        return 0;
    end = data + size;
    if (size && end[-1])
        return AVERROR_INVALIDDATA;
    while (data < end) {
        const uint8_t *key = data;
        const uint8_t *val = data + strlen(key) + 1;

        if (val >= end || !*key)
            return AVERROR_INVALIDDATA;

        ret = av_dict_set(dict, key, val, 0);
        if (ret < 0)
            return ret;
        data = val + strlen(val) + 1;
    }

    return 0;
}

int av_packet_shrink_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
                               size_t size)